/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 15:28:34,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 15:28:34,784 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 15:28:34,823 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-01 15:28:34,861 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 15:28:34,862 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 15:28:34,862 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 15:28:34,863 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-01 15:28:34,885 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 15:28:34,885 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 15:28:34,886 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 15:28:34,886 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 15:28:34,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 15:28:34,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 15:28:34,887 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 15:28:34,887 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 15:28:34,887 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 15:28:34,887 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 15:28:34,888 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 15:28:34,888 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 15:28:34,888 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 15:28:34,888 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 15:28:34,888 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 15:28:34,888 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 15:28:34,889 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 15:28:34,889 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 15:28:34,889 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 15:28:34,889 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 15:28:34,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 15:28:34,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 15:28:34,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 15:28:34,889 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 15:28:34,890 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 15:28:34,890 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:28:34,891 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 15:28:34,891 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 15:28:34,891 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 15:28:34,891 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 15:28:34,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 15:28:34,891 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 15:28:34,891 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 15:28:34,891 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 15:28:35,077 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 15:28:35,092 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 15:28:35,094 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 15:28:35,095 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-01 15:28:35,096 INFO L275 PluginConnector]: CDTParser initialized [2022-03-01 15:28:35,097 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-03-01 15:28:35,155 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a532d0274/de4e3605f68646b0afe3649490111d68/FLAG7225643e5 [2022-03-01 15:28:35,500 INFO L306 CDTParser]: Found 1 translation units. [2022-03-01 15:28:35,500 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c [2022-03-01 15:28:35,504 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a532d0274/de4e3605f68646b0afe3649490111d68/FLAG7225643e5 [2022-03-01 15:28:35,517 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a532d0274/de4e3605f68646b0afe3649490111d68 [2022-03-01 15:28:35,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 15:28:35,521 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-01 15:28:35,523 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-01 15:28:35,523 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-01 15:28:35,525 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-01 15:28:35,526 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:28:35" (1/1) ... [2022-03-01 15:28:35,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51c24722 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:28:35, skipping insertion in model container [2022-03-01 15:28:35,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.03 03:28:35" (1/1) ... [2022-03-01 15:28:35,531 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-01 15:28:35,544 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-01 15:28:35,715 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c[2628,2641] [2022-03-01 15:28:35,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:28:35,730 INFO L203 MainTranslator]: Completed pre-run [2022-03-01 15:28:35,760 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-exp-term-symm.wvr.c[2628,2641] [2022-03-01 15:28:35,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-01 15:28:35,771 INFO L208 MainTranslator]: Completed translation [2022-03-01 15:28:35,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:28:35 WrapperNode [2022-03-01 15:28:35,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-01 15:28:35,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 15:28:35,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 15:28:35,773 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 15:28:35,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:28:35" (1/1) ... [2022-03-01 15:28:35,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:28:35" (1/1) ... [2022-03-01 15:28:35,813 INFO L137 Inliner]: procedures = 22, calls = 25, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 128 [2022-03-01 15:28:35,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 15:28:35,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 15:28:35,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 15:28:35,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 15:28:35,820 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:28:35" (1/1) ... [2022-03-01 15:28:35,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:28:35" (1/1) ... [2022-03-01 15:28:35,830 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:28:35" (1/1) ... [2022-03-01 15:28:35,831 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:28:35" (1/1) ... [2022-03-01 15:28:35,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:28:35" (1/1) ... [2022-03-01 15:28:35,837 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:28:35" (1/1) ... [2022-03-01 15:28:35,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:28:35" (1/1) ... [2022-03-01 15:28:35,839 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 15:28:35,840 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 15:28:35,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 15:28:35,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 15:28:35,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:28:35" (1/1) ... [2022-03-01 15:28:35,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 15:28:35,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 15:28:35,868 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-01 15:28:35,886 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-01 15:28:35,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-01 15:28:35,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 15:28:35,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 15:28:35,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 15:28:35,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 15:28:35,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-01 15:28:35,903 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-01 15:28:35,903 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-01 15:28:35,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 15:28:35,904 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 15:28:35,904 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-01 15:28:35,904 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-01 15:28:35,906 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 15:28:35,978 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 15:28:35,979 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 15:28:36,161 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 15:28:36,167 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 15:28:36,167 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 15:28:36,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:28:36 BoogieIcfgContainer [2022-03-01 15:28:36,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 15:28:36,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 15:28:36,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 15:28:36,171 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 15:28:36,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.03 03:28:35" (1/3) ... [2022-03-01 15:28:36,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276d63e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:28:36, skipping insertion in model container [2022-03-01 15:28:36,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.03 03:28:35" (2/3) ... [2022-03-01 15:28:36,172 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@276d63e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 03:28:36, skipping insertion in model container [2022-03-01 15:28:36,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 03:28:36" (3/3) ... [2022-03-01 15:28:36,173 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-exp-term-symm.wvr.c [2022-03-01 15:28:36,176 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 15:28:36,177 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 15:28:36,177 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 15:28:36,177 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 15:28:36,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,206 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,207 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,208 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,209 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,210 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,211 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,212 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,213 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,214 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,215 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,217 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,218 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,219 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,220 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,221 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,221 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,222 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,222 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,222 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,222 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,222 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,223 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,224 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,225 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,226 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,227 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,228 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,229 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,230 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,231 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,232 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,233 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,234 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,237 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,238 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,240 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,241 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 15:28:36,244 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-01 15:28:36,271 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 15:28:36,275 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-01 15:28:36,275 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-01 15:28:36,289 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 168 places, 174 transitions, 364 flow [2022-03-01 15:28:36,552 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:36,575 INFO L276 IsEmpty]: Start isEmpty. Operand has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:36,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-01 15:28:36,620 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:36,621 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:36,621 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:36,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:36,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1228508451, now seen corresponding path program 1 times [2022-03-01 15:28:36,631 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:36,631 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1589829672] [2022-03-01 15:28:36,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:36,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:36,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:36,977 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:36,977 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1589829672] [2022-03-01 15:28:36,977 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1589829672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:36,977 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:36,978 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-03-01 15:28:36,979 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639399219] [2022-03-01 15:28:36,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:36,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-03-01 15:28:36,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:37,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-03-01 15:28:37,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-03-01 15:28:37,026 INFO L87 Difference]: Start difference. First operand has 7151 states, 7150 states have (on average 2.8864335664335665) internal successors, (20638), 7150 states have internal predecessors, (20638), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:37,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:37,289 INFO L93 Difference]: Finished difference Result 10047 states and 27493 transitions. [2022-03-01 15:28:37,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 15:28:37,292 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-03-01 15:28:37,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:37,348 INFO L225 Difference]: With dead ends: 10047 [2022-03-01 15:28:37,348 INFO L226 Difference]: Without dead ends: 8877 [2022-03-01 15:28:37,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-03-01 15:28:37,353 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 418 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 418 SdHoareTripleChecker+Valid, 1259 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:37,354 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [418 Valid, 1259 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:37,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8877 states. [2022-03-01 15:28:37,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8877 to 6601. [2022-03-01 15:28:37,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6601 states, 6600 states have (on average 2.784090909090909) internal successors, (18375), 6600 states have internal predecessors, (18375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:37,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6601 states to 6601 states and 18375 transitions. [2022-03-01 15:28:37,615 INFO L78 Accepts]: Start accepts. Automaton has 6601 states and 18375 transitions. Word has length 85 [2022-03-01 15:28:37,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:37,616 INFO L470 AbstractCegarLoop]: Abstraction has 6601 states and 18375 transitions. [2022-03-01 15:28:37,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.625) internal successors, (85), 8 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:37,617 INFO L276 IsEmpty]: Start isEmpty. Operand 6601 states and 18375 transitions. [2022-03-01 15:28:37,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-01 15:28:37,634 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:37,634 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:37,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-01 15:28:37,634 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:37,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:37,636 INFO L85 PathProgramCache]: Analyzing trace with hash 170552789, now seen corresponding path program 1 times [2022-03-01 15:28:37,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:37,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383573772] [2022-03-01 15:28:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:37,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:37,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:37,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:37,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383573772] [2022-03-01 15:28:37,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383573772] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:37,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:37,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-01 15:28:37,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14595900] [2022-03-01 15:28:37,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:37,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 15:28:37,777 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:37,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 15:28:37,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-01 15:28:37,780 INFO L87 Difference]: Start difference. First operand 6601 states and 18375 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:37,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:37,878 INFO L93 Difference]: Finished difference Result 8148 states and 22245 transitions. [2022-03-01 15:28:37,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 15:28:37,878 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-03-01 15:28:37,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:37,920 INFO L225 Difference]: With dead ends: 8148 [2022-03-01 15:28:37,920 INFO L226 Difference]: Without dead ends: 8148 [2022-03-01 15:28:37,920 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-01 15:28:37,921 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 226 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:37,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [226 Valid, 329 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:28:37,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8148 states. [2022-03-01 15:28:38,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8148 to 6867. [2022-03-01 15:28:38,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6867 states, 6866 states have (on average 2.7599766967666763) internal successors, (18950), 6866 states have internal predecessors, (18950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:38,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6867 states to 6867 states and 18950 transitions. [2022-03-01 15:28:38,113 INFO L78 Accepts]: Start accepts. Automaton has 6867 states and 18950 transitions. Word has length 87 [2022-03-01 15:28:38,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:38,115 INFO L470 AbstractCegarLoop]: Abstraction has 6867 states and 18950 transitions. [2022-03-01 15:28:38,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:38,116 INFO L276 IsEmpty]: Start isEmpty. Operand 6867 states and 18950 transitions. [2022-03-01 15:28:38,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-01 15:28:38,131 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:38,131 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:38,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 15:28:38,132 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:38,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:38,132 INFO L85 PathProgramCache]: Analyzing trace with hash -993683521, now seen corresponding path program 1 times [2022-03-01 15:28:38,133 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:38,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219635928] [2022-03-01 15:28:38,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:38,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:38,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:38,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:38,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219635928] [2022-03-01 15:28:38,243 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219635928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:38,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:38,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-01 15:28:38,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317723963] [2022-03-01 15:28:38,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:38,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 15:28:38,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:38,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 15:28:38,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-01 15:28:38,245 INFO L87 Difference]: Start difference. First operand 6867 states and 18950 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:38,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:38,363 INFO L93 Difference]: Finished difference Result 9672 states and 26243 transitions. [2022-03-01 15:28:38,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 15:28:38,364 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-03-01 15:28:38,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:38,388 INFO L225 Difference]: With dead ends: 9672 [2022-03-01 15:28:38,388 INFO L226 Difference]: Without dead ends: 9672 [2022-03-01 15:28:38,390 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-01 15:28:38,393 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 251 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:38,394 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [251 Valid, 379 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:38,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9672 states. [2022-03-01 15:28:38,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9672 to 6885. [2022-03-01 15:28:38,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6885 states, 6884 states have (on average 2.745496804183614) internal successors, (18900), 6884 states have internal predecessors, (18900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:38,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 18900 transitions. [2022-03-01 15:28:38,582 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 18900 transitions. Word has length 87 [2022-03-01 15:28:38,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:38,584 INFO L470 AbstractCegarLoop]: Abstraction has 6885 states and 18900 transitions. [2022-03-01 15:28:38,585 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:38,585 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 18900 transitions. [2022-03-01 15:28:38,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-01 15:28:38,599 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:38,600 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:38,600 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-01 15:28:38,600 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:38,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:38,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1203068365, now seen corresponding path program 2 times [2022-03-01 15:28:38,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:38,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070430005] [2022-03-01 15:28:38,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:38,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:38,652 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:38,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:38,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070430005] [2022-03-01 15:28:38,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070430005] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:38,653 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:38,653 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-01 15:28:38,653 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603441967] [2022-03-01 15:28:38,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:38,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 15:28:38,654 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:38,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 15:28:38,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-01 15:28:38,654 INFO L87 Difference]: Start difference. First operand 6885 states and 18900 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:38,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:38,727 INFO L93 Difference]: Finished difference Result 7730 states and 20793 transitions. [2022-03-01 15:28:38,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 15:28:38,727 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-03-01 15:28:38,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:38,745 INFO L225 Difference]: With dead ends: 7730 [2022-03-01 15:28:38,745 INFO L226 Difference]: Without dead ends: 7730 [2022-03-01 15:28:38,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-01 15:28:38,749 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 250 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:38,750 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [250 Valid, 303 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:28:38,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7730 states. [2022-03-01 15:28:38,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7730 to 7046. [2022-03-01 15:28:38,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7046 states, 7045 states have (on average 2.7144073811213625) internal successors, (19123), 7045 states have internal predecessors, (19123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:38,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7046 states to 7046 states and 19123 transitions. [2022-03-01 15:28:38,909 INFO L78 Accepts]: Start accepts. Automaton has 7046 states and 19123 transitions. Word has length 87 [2022-03-01 15:28:38,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:38,910 INFO L470 AbstractCegarLoop]: Abstraction has 7046 states and 19123 transitions. [2022-03-01 15:28:38,910 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:38,910 INFO L276 IsEmpty]: Start isEmpty. Operand 7046 states and 19123 transitions. [2022-03-01 15:28:38,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-01 15:28:38,930 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:38,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:38,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 15:28:38,931 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:38,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:38,931 INFO L85 PathProgramCache]: Analyzing trace with hash -958876555, now seen corresponding path program 3 times [2022-03-01 15:28:38,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:38,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418510863] [2022-03-01 15:28:38,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:38,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:38,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:38,993 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:38,994 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418510863] [2022-03-01 15:28:38,994 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418510863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:38,994 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:38,994 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-01 15:28:38,994 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395843996] [2022-03-01 15:28:38,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:38,995 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 15:28:38,995 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:38,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 15:28:38,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-01 15:28:38,995 INFO L87 Difference]: Start difference. First operand 7046 states and 19123 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:39,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:39,102 INFO L93 Difference]: Finished difference Result 9884 states and 26268 transitions. [2022-03-01 15:28:39,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 15:28:39,102 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-03-01 15:28:39,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:39,126 INFO L225 Difference]: With dead ends: 9884 [2022-03-01 15:28:39,126 INFO L226 Difference]: Without dead ends: 9884 [2022-03-01 15:28:39,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-01 15:28:39,127 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 260 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 61 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 494 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 61 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:39,127 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [260 Valid, 494 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 61 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:39,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9884 states. [2022-03-01 15:28:39,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9884 to 7137. [2022-03-01 15:28:39,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7137 states, 7136 states have (on average 2.7058576233183858) internal successors, (19309), 7136 states have internal predecessors, (19309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:39,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7137 states to 7137 states and 19309 transitions. [2022-03-01 15:28:39,305 INFO L78 Accepts]: Start accepts. Automaton has 7137 states and 19309 transitions. Word has length 87 [2022-03-01 15:28:39,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:39,305 INFO L470 AbstractCegarLoop]: Abstraction has 7137 states and 19309 transitions. [2022-03-01 15:28:39,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:39,306 INFO L276 IsEmpty]: Start isEmpty. Operand 7137 states and 19309 transitions. [2022-03-01 15:28:39,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-03-01 15:28:39,318 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:39,318 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:39,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 15:28:39,318 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:39,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:39,319 INFO L85 PathProgramCache]: Analyzing trace with hash 345929761, now seen corresponding path program 2 times [2022-03-01 15:28:39,319 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:39,319 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504588040] [2022-03-01 15:28:39,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:39,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:39,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:39,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:39,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504588040] [2022-03-01 15:28:39,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504588040] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:39,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:39,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-01 15:28:39,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269272475] [2022-03-01 15:28:39,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:39,360 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 15:28:39,360 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:39,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 15:28:39,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-01 15:28:39,361 INFO L87 Difference]: Start difference. First operand 7137 states and 19309 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:39,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:39,422 INFO L93 Difference]: Finished difference Result 7758 states and 20803 transitions. [2022-03-01 15:28:39,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-01 15:28:39,423 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 87 [2022-03-01 15:28:39,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:39,443 INFO L225 Difference]: With dead ends: 7758 [2022-03-01 15:28:39,443 INFO L226 Difference]: Without dead ends: 7758 [2022-03-01 15:28:39,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-03-01 15:28:39,444 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 286 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:39,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 276 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:28:39,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7758 states. [2022-03-01 15:28:39,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7758 to 7082. [2022-03-01 15:28:39,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7082 states, 7081 states have (on average 2.699759920915125) internal successors, (19117), 7081 states have internal predecessors, (19117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:39,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7082 states to 7082 states and 19117 transitions. [2022-03-01 15:28:39,565 INFO L78 Accepts]: Start accepts. Automaton has 7082 states and 19117 transitions. Word has length 87 [2022-03-01 15:28:39,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:39,565 INFO L470 AbstractCegarLoop]: Abstraction has 7082 states and 19117 transitions. [2022-03-01 15:28:39,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:39,565 INFO L276 IsEmpty]: Start isEmpty. Operand 7082 states and 19117 transitions. [2022-03-01 15:28:39,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:39,577 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:39,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:39,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 15:28:39,577 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:39,578 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:39,578 INFO L85 PathProgramCache]: Analyzing trace with hash -121906834, now seen corresponding path program 1 times [2022-03-01 15:28:39,578 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:39,578 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366072844] [2022-03-01 15:28:39,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:39,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:39,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:39,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:39,677 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:39,677 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366072844] [2022-03-01 15:28:39,677 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366072844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:39,677 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:39,677 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:39,678 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101210692] [2022-03-01 15:28:39,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:39,678 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:39,678 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:39,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:39,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:39,679 INFO L87 Difference]: Start difference. First operand 7082 states and 19117 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:40,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:40,046 INFO L93 Difference]: Finished difference Result 8745 states and 23298 transitions. [2022-03-01 15:28:40,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 15:28:40,046 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:40,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:40,066 INFO L225 Difference]: With dead ends: 8745 [2022-03-01 15:28:40,066 INFO L226 Difference]: Without dead ends: 8398 [2022-03-01 15:28:40,067 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2022-03-01 15:28:40,067 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 413 mSDsluCounter, 1350 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 413 SdHoareTripleChecker+Valid, 1617 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:40,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [413 Valid, 1617 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:40,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8398 states. [2022-03-01 15:28:40,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8398 to 6955. [2022-03-01 15:28:40,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6955 states, 6954 states have (on average 2.7018981880931836) internal successors, (18789), 6954 states have internal predecessors, (18789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:40,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6955 states to 6955 states and 18789 transitions. [2022-03-01 15:28:40,189 INFO L78 Accepts]: Start accepts. Automaton has 6955 states and 18789 transitions. Word has length 91 [2022-03-01 15:28:40,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:40,190 INFO L470 AbstractCegarLoop]: Abstraction has 6955 states and 18789 transitions. [2022-03-01 15:28:40,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:40,190 INFO L276 IsEmpty]: Start isEmpty. Operand 6955 states and 18789 transitions. [2022-03-01 15:28:40,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:40,204 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:40,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:40,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-01 15:28:40,204 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:40,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:40,206 INFO L85 PathProgramCache]: Analyzing trace with hash -824777706, now seen corresponding path program 2 times [2022-03-01 15:28:40,206 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:40,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311375471] [2022-03-01 15:28:40,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:40,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:40,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:40,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:40,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:40,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311375471] [2022-03-01 15:28:40,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311375471] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:40,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:40,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:40,312 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312650634] [2022-03-01 15:28:40,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:40,312 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:40,312 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:40,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:40,312 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:40,313 INFO L87 Difference]: Start difference. First operand 6955 states and 18789 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:40,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:40,709 INFO L93 Difference]: Finished difference Result 8014 states and 21541 transitions. [2022-03-01 15:28:40,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:28:40,710 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:40,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:40,725 INFO L225 Difference]: With dead ends: 8014 [2022-03-01 15:28:40,725 INFO L226 Difference]: Without dead ends: 7698 [2022-03-01 15:28:40,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=247, Invalid=875, Unknown=0, NotChecked=0, Total=1122 [2022-03-01 15:28:40,726 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 230 mSDsluCounter, 2300 mSDsCounter, 0 mSdLazyCounter, 279 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 2521 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 279 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:40,726 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 2521 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 279 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:40,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7698 states. [2022-03-01 15:28:40,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7698 to 6959. [2022-03-01 15:28:40,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6959 states, 6958 states have (on average 2.7013509629203796) internal successors, (18796), 6958 states have internal predecessors, (18796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:40,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6959 states to 6959 states and 18796 transitions. [2022-03-01 15:28:40,862 INFO L78 Accepts]: Start accepts. Automaton has 6959 states and 18796 transitions. Word has length 91 [2022-03-01 15:28:40,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:40,862 INFO L470 AbstractCegarLoop]: Abstraction has 6959 states and 18796 transitions. [2022-03-01 15:28:40,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:40,862 INFO L276 IsEmpty]: Start isEmpty. Operand 6959 states and 18796 transitions. [2022-03-01 15:28:40,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:40,874 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:40,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:40,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-01 15:28:40,874 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:40,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:40,875 INFO L85 PathProgramCache]: Analyzing trace with hash -529174870, now seen corresponding path program 3 times [2022-03-01 15:28:40,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:40,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829989966] [2022-03-01 15:28:40,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:40,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:40,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:40,975 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:40,975 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829989966] [2022-03-01 15:28:40,975 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829989966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:40,976 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:40,976 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:40,976 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537309553] [2022-03-01 15:28:40,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:40,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:40,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:40,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:40,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:40,977 INFO L87 Difference]: Start difference. First operand 6959 states and 18796 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:41,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:41,262 INFO L93 Difference]: Finished difference Result 7925 states and 21311 transitions. [2022-03-01 15:28:41,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-01 15:28:41,263 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:41,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:41,279 INFO L225 Difference]: With dead ends: 7925 [2022-03-01 15:28:41,279 INFO L226 Difference]: Without dead ends: 7640 [2022-03-01 15:28:41,280 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=183, Invalid=629, Unknown=0, NotChecked=0, Total=812 [2022-03-01 15:28:41,281 INFO L933 BasicCegarLoop]: 277 mSDtfsCounter, 186 mSDsluCounter, 1781 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 2012 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:41,282 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 2012 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:41,294 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7640 states. [2022-03-01 15:28:41,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7640 to 6963. [2022-03-01 15:28:41,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6963 states, 6962 states have (on average 2.700804366561333) internal successors, (18803), 6962 states have internal predecessors, (18803), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:41,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6963 states to 6963 states and 18803 transitions. [2022-03-01 15:28:41,428 INFO L78 Accepts]: Start accepts. Automaton has 6963 states and 18803 transitions. Word has length 91 [2022-03-01 15:28:41,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:41,428 INFO L470 AbstractCegarLoop]: Abstraction has 6963 states and 18803 transitions. [2022-03-01 15:28:41,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:41,429 INFO L276 IsEmpty]: Start isEmpty. Operand 6963 states and 18803 transitions. [2022-03-01 15:28:41,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:41,441 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:41,441 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:41,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-01 15:28:41,441 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:41,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:41,442 INFO L85 PathProgramCache]: Analyzing trace with hash -947356524, now seen corresponding path program 4 times [2022-03-01 15:28:41,442 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:41,442 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640776627] [2022-03-01 15:28:41,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:41,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:41,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:41,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:41,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:41,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640776627] [2022-03-01 15:28:41,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640776627] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:41,550 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:41,550 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:41,550 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481897221] [2022-03-01 15:28:41,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:41,550 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:41,550 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:41,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:41,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:41,551 INFO L87 Difference]: Start difference. First operand 6963 states and 18803 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:41,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:41,828 INFO L93 Difference]: Finished difference Result 7814 states and 21025 transitions. [2022-03-01 15:28:41,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 15:28:41,828 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:41,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:41,842 INFO L225 Difference]: With dead ends: 7814 [2022-03-01 15:28:41,842 INFO L226 Difference]: Without dead ends: 7563 [2022-03-01 15:28:41,842 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:28:41,843 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 146 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 192 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1952 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 192 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:41,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 1952 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 192 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:41,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7563 states. [2022-03-01 15:28:41,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7563 to 6967. [2022-03-01 15:28:41,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6967 states, 6966 states have (on average 2.7002583979328167) internal successors, (18810), 6966 states have internal predecessors, (18810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:41,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6967 states to 6967 states and 18810 transitions. [2022-03-01 15:28:41,953 INFO L78 Accepts]: Start accepts. Automaton has 6967 states and 18810 transitions. Word has length 91 [2022-03-01 15:28:41,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:41,953 INFO L470 AbstractCegarLoop]: Abstraction has 6967 states and 18810 transitions. [2022-03-01 15:28:41,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:41,953 INFO L276 IsEmpty]: Start isEmpty. Operand 6967 states and 18810 transitions. [2022-03-01 15:28:41,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:41,963 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:41,963 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:41,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-01 15:28:41,964 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:41,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:41,964 INFO L85 PathProgramCache]: Analyzing trace with hash 545464910, now seen corresponding path program 5 times [2022-03-01 15:28:41,964 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:41,964 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1857675824] [2022-03-01 15:28:41,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:41,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:42,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:42,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:42,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1857675824] [2022-03-01 15:28:42,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1857675824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:42,060 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:42,060 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:42,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192037830] [2022-03-01 15:28:42,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:42,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:42,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:42,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:42,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:42,061 INFO L87 Difference]: Start difference. First operand 6967 states and 18810 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:42,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:42,276 INFO L93 Difference]: Finished difference Result 7785 states and 20943 transitions. [2022-03-01 15:28:42,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:28:42,276 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:42,289 INFO L225 Difference]: With dead ends: 7785 [2022-03-01 15:28:42,289 INFO L226 Difference]: Without dead ends: 7515 [2022-03-01 15:28:42,290 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:28:42,290 INFO L933 BasicCegarLoop]: 269 mSDtfsCounter, 148 mSDsluCounter, 1284 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 1523 SdHoareTripleChecker+Invalid, 150 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:42,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [148 Valid, 1523 Invalid, 150 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:42,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7515 states. [2022-03-01 15:28:42,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7515 to 6933. [2022-03-01 15:28:42,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.701817657241777) internal successors, (18729), 6932 states have internal predecessors, (18729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:42,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18729 transitions. [2022-03-01 15:28:42,403 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18729 transitions. Word has length 91 [2022-03-01 15:28:42,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:42,403 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18729 transitions. [2022-03-01 15:28:42,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:42,404 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18729 transitions. [2022-03-01 15:28:42,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:42,414 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:42,414 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:42,414 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-01 15:28:42,414 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:42,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:42,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1696240230, now seen corresponding path program 6 times [2022-03-01 15:28:42,415 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:42,415 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417984710] [2022-03-01 15:28:42,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:42,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:42,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:42,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:42,513 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:42,513 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417984710] [2022-03-01 15:28:42,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417984710] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:42,513 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:42,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:42,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899199999] [2022-03-01 15:28:42,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:42,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:42,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:42,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:42,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:42,514 INFO L87 Difference]: Start difference. First operand 6933 states and 18729 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:42,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:42,857 INFO L93 Difference]: Finished difference Result 8034 states and 21592 transitions. [2022-03-01 15:28:42,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-01 15:28:42,858 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:42,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:42,870 INFO L225 Difference]: With dead ends: 8034 [2022-03-01 15:28:42,871 INFO L226 Difference]: Without dead ends: 7718 [2022-03-01 15:28:42,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=232, Invalid=760, Unknown=0, NotChecked=0, Total=992 [2022-03-01 15:28:42,872 INFO L933 BasicCegarLoop]: 250 mSDtfsCounter, 196 mSDsluCounter, 1849 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 196 SdHoareTripleChecker+Valid, 2045 SdHoareTripleChecker+Invalid, 263 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:42,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [196 Valid, 2045 Invalid, 263 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:42,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7718 states. [2022-03-01 15:28:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7718 to 6941. [2022-03-01 15:28:42,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.7012968299711817) internal successors, (18747), 6940 states have internal predecessors, (18747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:42,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18747 transitions. [2022-03-01 15:28:42,978 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18747 transitions. Word has length 91 [2022-03-01 15:28:42,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:42,978 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18747 transitions. [2022-03-01 15:28:42,978 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:42,978 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18747 transitions. [2022-03-01 15:28:42,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:42,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:42,988 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:42,988 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-01 15:28:42,988 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:42,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:42,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1400637394, now seen corresponding path program 7 times [2022-03-01 15:28:42,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:42,989 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1063741778] [2022-03-01 15:28:42,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:42,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:42,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:43,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:43,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:43,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1063741778] [2022-03-01 15:28:43,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1063741778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:43,090 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:43,090 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:43,090 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56422599] [2022-03-01 15:28:43,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:43,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:43,091 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:43,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:43,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:43,091 INFO L87 Difference]: Start difference. First operand 6941 states and 18747 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:43,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:43,394 INFO L93 Difference]: Finished difference Result 7997 states and 21505 transitions. [2022-03-01 15:28:43,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-01 15:28:43,395 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:43,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:43,408 INFO L225 Difference]: With dead ends: 7997 [2022-03-01 15:28:43,408 INFO L226 Difference]: Without dead ends: 7712 [2022-03-01 15:28:43,409 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=176, Invalid=580, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:28:43,409 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 165 mSDsluCounter, 1587 mSDsCounter, 0 mSdLazyCounter, 229 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 1786 SdHoareTripleChecker+Invalid, 229 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 229 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:43,409 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 1786 Invalid, 229 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:43,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7712 states. [2022-03-01 15:28:43,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7712 to 6945. [2022-03-01 15:28:43,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.7007488479262673) internal successors, (18754), 6944 states have internal predecessors, (18754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:43,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18754 transitions. [2022-03-01 15:28:43,519 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18754 transitions. Word has length 91 [2022-03-01 15:28:43,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:43,519 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18754 transitions. [2022-03-01 15:28:43,519 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:43,519 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18754 transitions. [2022-03-01 15:28:43,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:43,529 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:43,529 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:43,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-01 15:28:43,529 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:43,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:43,529 INFO L85 PathProgramCache]: Analyzing trace with hash -1818819048, now seen corresponding path program 8 times [2022-03-01 15:28:43,530 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:43,530 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230164835] [2022-03-01 15:28:43,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:43,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:43,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:43,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:43,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:43,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230164835] [2022-03-01 15:28:43,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230164835] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:43,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:43,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:43,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410751780] [2022-03-01 15:28:43,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:43,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:43,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:43,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:43,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:43,635 INFO L87 Difference]: Start difference. First operand 6945 states and 18754 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:43,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:43,897 INFO L93 Difference]: Finished difference Result 7894 states and 21241 transitions. [2022-03-01 15:28:43,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:28:43,897 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:43,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:43,909 INFO L225 Difference]: With dead ends: 7894 [2022-03-01 15:28:43,910 INFO L226 Difference]: Without dead ends: 7643 [2022-03-01 15:28:43,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:28:43,910 INFO L933 BasicCegarLoop]: 230 mSDtfsCounter, 113 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 2065 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:43,911 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [113 Valid, 2065 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:43,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7643 states. [2022-03-01 15:28:43,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7643 to 6949. [2022-03-01 15:28:44,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.700201496833621) internal successors, (18761), 6948 states have internal predecessors, (18761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:44,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18761 transitions. [2022-03-01 15:28:44,018 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18761 transitions. Word has length 91 [2022-03-01 15:28:44,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:44,018 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18761 transitions. [2022-03-01 15:28:44,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:44,018 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18761 transitions. [2022-03-01 15:28:44,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:44,028 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:44,028 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:44,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-01 15:28:44,028 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:44,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:44,029 INFO L85 PathProgramCache]: Analyzing trace with hash -325997614, now seen corresponding path program 9 times [2022-03-01 15:28:44,029 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:44,029 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916450890] [2022-03-01 15:28:44,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:44,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:44,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:44,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:44,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:44,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916450890] [2022-03-01 15:28:44,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916450890] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:44,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:44,121 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:44,121 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616700547] [2022-03-01 15:28:44,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:44,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:44,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:44,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:44,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:44,122 INFO L87 Difference]: Start difference. First operand 6949 states and 18761 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:44,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:44,389 INFO L93 Difference]: Finished difference Result 7865 states and 21159 transitions. [2022-03-01 15:28:44,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:28:44,390 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:44,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:44,401 INFO L225 Difference]: With dead ends: 7865 [2022-03-01 15:28:44,402 INFO L226 Difference]: Without dead ends: 7599 [2022-03-01 15:28:44,402 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=133, Invalid=467, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:28:44,402 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 114 mSDsluCounter, 1913 mSDsCounter, 0 mSdLazyCounter, 268 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 2103 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 268 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:44,403 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 2103 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 268 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:44,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2022-03-01 15:28:44,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 6937. [2022-03-01 15:28:44,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.701268742791234) internal successors, (18736), 6936 states have internal predecessors, (18736), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:44,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18736 transitions. [2022-03-01 15:28:44,557 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18736 transitions. Word has length 91 [2022-03-01 15:28:44,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:44,557 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18736 transitions. [2022-03-01 15:28:44,557 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:44,557 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18736 transitions. [2022-03-01 15:28:44,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:44,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:44,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:44,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-01 15:28:44,567 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:44,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:44,567 INFO L85 PathProgramCache]: Analyzing trace with hash -2106151822, now seen corresponding path program 10 times [2022-03-01 15:28:44,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:44,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631427069] [2022-03-01 15:28:44,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:44,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:44,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:44,662 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:44,662 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631427069] [2022-03-01 15:28:44,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631427069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:44,664 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:44,664 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:44,664 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134518808] [2022-03-01 15:28:44,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:44,664 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:44,664 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:44,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:44,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:44,665 INFO L87 Difference]: Start difference. First operand 6937 states and 18736 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:44,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:44,942 INFO L93 Difference]: Finished difference Result 7914 states and 21288 transitions. [2022-03-01 15:28:44,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-01 15:28:44,942 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:44,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:44,954 INFO L225 Difference]: With dead ends: 7914 [2022-03-01 15:28:44,954 INFO L226 Difference]: Without dead ends: 7635 [2022-03-01 15:28:44,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=599, Unknown=0, NotChecked=0, Total=812 [2022-03-01 15:28:44,955 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 164 mSDsluCounter, 1078 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:44,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 1286 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:44,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7635 states. [2022-03-01 15:28:45,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7635 to 6945. [2022-03-01 15:28:45,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.7007488479262673) internal successors, (18754), 6944 states have internal predecessors, (18754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:45,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18754 transitions. [2022-03-01 15:28:45,061 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18754 transitions. Word has length 91 [2022-03-01 15:28:45,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:45,062 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18754 transitions. [2022-03-01 15:28:45,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:45,062 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18754 transitions. [2022-03-01 15:28:45,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:45,071 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:45,071 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:45,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-01 15:28:45,071 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:45,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:45,072 INFO L85 PathProgramCache]: Analyzing trace with hash -862189728, now seen corresponding path program 11 times [2022-03-01 15:28:45,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:45,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522555768] [2022-03-01 15:28:45,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:45,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:45,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:45,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:45,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:45,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522555768] [2022-03-01 15:28:45,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522555768] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:45,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:45,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:45,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501308874] [2022-03-01 15:28:45,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:45,158 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:45,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:45,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:45,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:45,159 INFO L87 Difference]: Start difference. First operand 6945 states and 18754 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:45,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:45,409 INFO L93 Difference]: Finished difference Result 7874 states and 21186 transitions. [2022-03-01 15:28:45,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:28:45,409 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:45,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:45,421 INFO L225 Difference]: With dead ends: 7874 [2022-03-01 15:28:45,422 INFO L226 Difference]: Without dead ends: 7623 [2022-03-01 15:28:45,422 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=582, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:28:45,422 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 128 mSDsluCounter, 1435 mSDsCounter, 0 mSdLazyCounter, 202 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1637 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:45,422 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1637 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 202 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:45,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7623 states. [2022-03-01 15:28:45,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7623 to 6949. [2022-03-01 15:28:45,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.700201496833621) internal successors, (18761), 6948 states have internal predecessors, (18761), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:45,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18761 transitions. [2022-03-01 15:28:45,526 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18761 transitions. Word has length 91 [2022-03-01 15:28:45,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:45,526 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18761 transitions. [2022-03-01 15:28:45,526 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:45,527 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18761 transitions. [2022-03-01 15:28:45,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:45,536 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:45,536 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:45,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-01 15:28:45,536 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:45,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:45,537 INFO L85 PathProgramCache]: Analyzing trace with hash 630631706, now seen corresponding path program 12 times [2022-03-01 15:28:45,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:45,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661331150] [2022-03-01 15:28:45,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:45,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:45,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:45,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:45,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:45,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661331150] [2022-03-01 15:28:45,617 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661331150] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:45,617 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:45,617 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:45,617 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287441343] [2022-03-01 15:28:45,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:45,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:45,617 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:45,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:45,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:45,618 INFO L87 Difference]: Start difference. First operand 6949 states and 18761 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:45,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:45,855 INFO L93 Difference]: Finished difference Result 7845 states and 21104 transitions. [2022-03-01 15:28:45,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 15:28:45,855 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:45,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:45,868 INFO L225 Difference]: With dead ends: 7845 [2022-03-01 15:28:45,869 INFO L226 Difference]: Without dead ends: 7583 [2022-03-01 15:28:45,869 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2022-03-01 15:28:45,870 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 116 mSDsluCounter, 1599 mSDsCounter, 0 mSdLazyCounter, 225 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 1796 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:45,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [116 Valid, 1796 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 225 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:45,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7583 states. [2022-03-01 15:28:46,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7583 to 6941. [2022-03-01 15:28:46,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.7007204610951008) internal successors, (18743), 6940 states have internal predecessors, (18743), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:46,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18743 transitions. [2022-03-01 15:28:46,030 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18743 transitions. Word has length 91 [2022-03-01 15:28:46,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:46,030 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18743 transitions. [2022-03-01 15:28:46,031 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:46,031 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18743 transitions. [2022-03-01 15:28:46,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:46,040 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:46,041 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:46,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-01 15:28:46,041 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:46,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:46,041 INFO L85 PathProgramCache]: Analyzing trace with hash -361686864, now seen corresponding path program 13 times [2022-03-01 15:28:46,041 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:46,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903826847] [2022-03-01 15:28:46,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:46,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:46,135 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:46,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:46,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903826847] [2022-03-01 15:28:46,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903826847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:46,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:46,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:46,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176104959] [2022-03-01 15:28:46,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:46,136 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:46,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:46,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:46,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:46,137 INFO L87 Difference]: Start difference. First operand 6941 states and 18743 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:46,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:46,431 INFO L93 Difference]: Finished difference Result 7929 states and 21314 transitions. [2022-03-01 15:28:46,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-01 15:28:46,431 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:46,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:46,442 INFO L225 Difference]: With dead ends: 7929 [2022-03-01 15:28:46,443 INFO L226 Difference]: Without dead ends: 7644 [2022-03-01 15:28:46,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2022-03-01 15:28:46,444 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 164 mSDsluCounter, 1754 mSDsCounter, 0 mSdLazyCounter, 241 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 241 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:46,444 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 1948 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 241 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:46,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7644 states. [2022-03-01 15:28:46,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7644 to 6945. [2022-03-01 15:28:46,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6945 states, 6944 states have (on average 2.700172811059908) internal successors, (18750), 6944 states have internal predecessors, (18750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:46,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6945 states to 6945 states and 18750 transitions. [2022-03-01 15:28:46,562 INFO L78 Accepts]: Start accepts. Automaton has 6945 states and 18750 transitions. Word has length 91 [2022-03-01 15:28:46,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:46,562 INFO L470 AbstractCegarLoop]: Abstraction has 6945 states and 18750 transitions. [2022-03-01 15:28:46,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:46,562 INFO L276 IsEmpty]: Start isEmpty. Operand 6945 states and 18750 transitions. [2022-03-01 15:28:46,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:46,571 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:46,572 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:46,572 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-01 15:28:46,572 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:46,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:46,572 INFO L85 PathProgramCache]: Analyzing trace with hash -779868518, now seen corresponding path program 14 times [2022-03-01 15:28:46,572 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:46,572 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729449099] [2022-03-01 15:28:46,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:46,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:46,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:46,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:46,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:46,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729449099] [2022-03-01 15:28:46,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729449099] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:46,665 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:46,665 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:46,665 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887788829] [2022-03-01 15:28:46,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:46,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:46,665 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:46,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:46,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:46,666 INFO L87 Difference]: Start difference. First operand 6945 states and 18750 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:46,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:46,952 INFO L93 Difference]: Finished difference Result 7830 states and 21061 transitions. [2022-03-01 15:28:46,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 15:28:46,953 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:46,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:46,965 INFO L225 Difference]: With dead ends: 7830 [2022-03-01 15:28:46,966 INFO L226 Difference]: Without dead ends: 7579 [2022-03-01 15:28:46,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2022-03-01 15:28:46,966 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 128 mSDsluCounter, 1720 mSDsCounter, 0 mSdLazyCounter, 219 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1914 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 219 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:46,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1914 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 219 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:46,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7579 states. [2022-03-01 15:28:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7579 to 6949. [2022-03-01 15:28:47,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 2.6996257915947037) internal successors, (18757), 6948 states have internal predecessors, (18757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:47,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 18757 transitions. [2022-03-01 15:28:47,062 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 18757 transitions. Word has length 91 [2022-03-01 15:28:47,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:47,062 INFO L470 AbstractCegarLoop]: Abstraction has 6949 states and 18757 transitions. [2022-03-01 15:28:47,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:47,062 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 18757 transitions. [2022-03-01 15:28:47,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:47,072 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:47,072 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:47,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-03-01 15:28:47,073 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:47,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:47,073 INFO L85 PathProgramCache]: Analyzing trace with hash 712952916, now seen corresponding path program 15 times [2022-03-01 15:28:47,073 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:47,073 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308210320] [2022-03-01 15:28:47,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:47,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:47,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:47,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:47,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308210320] [2022-03-01 15:28:47,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308210320] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:47,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:47,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:47,159 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533698612] [2022-03-01 15:28:47,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:47,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:47,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:47,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:47,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:47,160 INFO L87 Difference]: Start difference. First operand 6949 states and 18757 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:47,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:47,393 INFO L93 Difference]: Finished difference Result 7785 states and 20935 transitions. [2022-03-01 15:28:47,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:28:47,393 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:47,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:47,404 INFO L225 Difference]: With dead ends: 7785 [2022-03-01 15:28:47,404 INFO L226 Difference]: Without dead ends: 7511 [2022-03-01 15:28:47,404 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=139, Invalid=461, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:28:47,405 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 123 mSDsluCounter, 1729 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1917 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:47,405 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1917 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:47,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7511 states. [2022-03-01 15:28:47,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7511 to 6921. [2022-03-01 15:28:47,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6921 states, 6920 states have (on average 2.7011560693641616) internal successors, (18692), 6920 states have internal predecessors, (18692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:47,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6921 states to 6921 states and 18692 transitions. [2022-03-01 15:28:47,495 INFO L78 Accepts]: Start accepts. Automaton has 6921 states and 18692 transitions. Word has length 91 [2022-03-01 15:28:47,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:47,496 INFO L470 AbstractCegarLoop]: Abstraction has 6921 states and 18692 transitions. [2022-03-01 15:28:47,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:47,496 INFO L276 IsEmpty]: Start isEmpty. Operand 6921 states and 18692 transitions. [2022-03-01 15:28:47,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:47,504 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:47,504 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:47,504 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-01 15:28:47,504 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:47,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:47,506 INFO L85 PathProgramCache]: Analyzing trace with hash 131969418, now seen corresponding path program 16 times [2022-03-01 15:28:47,506 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:47,506 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747148643] [2022-03-01 15:28:47,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:47,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:47,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:47,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:47,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747148643] [2022-03-01 15:28:47,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747148643] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:47,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:47,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:47,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874003878] [2022-03-01 15:28:47,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:47,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:47,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:47,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:47,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:47,587 INFO L87 Difference]: Start difference. First operand 6921 states and 18692 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:47,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:47,903 INFO L93 Difference]: Finished difference Result 8298 states and 22306 transitions. [2022-03-01 15:28:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 15:28:47,903 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:47,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:47,916 INFO L225 Difference]: With dead ends: 8298 [2022-03-01 15:28:47,916 INFO L226 Difference]: Without dead ends: 7982 [2022-03-01 15:28:47,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2022-03-01 15:28:47,917 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 195 mSDsluCounter, 1962 mSDsCounter, 0 mSdLazyCounter, 271 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 195 SdHoareTripleChecker+Valid, 2152 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 271 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:47,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [195 Valid, 2152 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 271 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:47,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7982 states. [2022-03-01 15:28:48,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7982 to 6933. [2022-03-01 15:28:48,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.70066358915176) internal successors, (18721), 6932 states have internal predecessors, (18721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:48,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18721 transitions. [2022-03-01 15:28:48,024 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18721 transitions. Word has length 91 [2022-03-01 15:28:48,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:48,024 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18721 transitions. [2022-03-01 15:28:48,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:48,025 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18721 transitions. [2022-03-01 15:28:48,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:48,033 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:48,033 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:48,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-03-01 15:28:48,033 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:48,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:48,034 INFO L85 PathProgramCache]: Analyzing trace with hash 427572254, now seen corresponding path program 17 times [2022-03-01 15:28:48,034 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:48,034 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767897157] [2022-03-01 15:28:48,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:48,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:48,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:48,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:48,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:48,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767897157] [2022-03-01 15:28:48,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767897157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:48,122 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:48,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:48,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345024045] [2022-03-01 15:28:48,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:48,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:48,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:48,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:48,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:48,123 INFO L87 Difference]: Start difference. First operand 6933 states and 18721 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:48,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:48,406 INFO L93 Difference]: Finished difference Result 8261 states and 22219 transitions. [2022-03-01 15:28:48,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-01 15:28:48,407 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:48,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:48,418 INFO L225 Difference]: With dead ends: 8261 [2022-03-01 15:28:48,418 INFO L226 Difference]: Without dead ends: 7976 [2022-03-01 15:28:48,418 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=197, Invalid=615, Unknown=0, NotChecked=0, Total=812 [2022-03-01 15:28:48,419 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 176 mSDsluCounter, 1561 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1755 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:48,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 1755 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:48,428 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2022-03-01 15:28:48,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 6937. [2022-03-01 15:28:48,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:48,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-03-01 15:28:48,507 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-03-01 15:28:48,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:48,507 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-03-01 15:28:48,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:48,507 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-03-01 15:28:48,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:48,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:48,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:48,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-01 15:28:48,516 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:48,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:48,516 INFO L85 PathProgramCache]: Analyzing trace with hash 9390600, now seen corresponding path program 18 times [2022-03-01 15:28:48,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:48,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220404847] [2022-03-01 15:28:48,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:48,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:48,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:48,612 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:48,612 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220404847] [2022-03-01 15:28:48,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220404847] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:48,613 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:48,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:48,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532064428] [2022-03-01 15:28:48,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:48,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:48,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:48,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:48,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:48,615 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:48,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:48,842 INFO L93 Difference]: Finished difference Result 8158 states and 21955 transitions. [2022-03-01 15:28:48,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:28:48,843 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:48,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:48,854 INFO L225 Difference]: With dead ends: 8158 [2022-03-01 15:28:48,854 INFO L226 Difference]: Without dead ends: 7907 [2022-03-01 15:28:48,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-03-01 15:28:48,855 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 132 mSDsluCounter, 1333 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1532 SdHoareTripleChecker+Invalid, 191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:48,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1532 Invalid, 191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:48,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7907 states. [2022-03-01 15:28:48,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7907 to 6941. [2022-03-01 15:28:48,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:48,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-03-01 15:28:48,950 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-03-01 15:28:48,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:48,950 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-03-01 15:28:48,951 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:48,951 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-03-01 15:28:48,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:48,959 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:48,959 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:48,959 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-01 15:28:48,959 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:48,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:48,959 INFO L85 PathProgramCache]: Analyzing trace with hash 1502212034, now seen corresponding path program 19 times [2022-03-01 15:28:48,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:48,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836873102] [2022-03-01 15:28:48,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:48,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:49,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:49,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:49,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836873102] [2022-03-01 15:28:49,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836873102] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:49,067 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:49,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:49,068 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786356598] [2022-03-01 15:28:49,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:49,068 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:49,068 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:49,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:49,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:49,069 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:49,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:49,305 INFO L93 Difference]: Finished difference Result 8129 states and 21873 transitions. [2022-03-01 15:28:49,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:28:49,305 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:49,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:49,316 INFO L225 Difference]: With dead ends: 8129 [2022-03-01 15:28:49,316 INFO L226 Difference]: Without dead ends: 7863 [2022-03-01 15:28:49,317 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:28:49,317 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 128 mSDsluCounter, 1493 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:49,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1690 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:49,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7863 states. [2022-03-01 15:28:49,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7863 to 6929. [2022-03-01 15:28:49,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 2.700635103926097) internal successors, (18710), 6928 states have internal predecessors, (18710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:49,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 18710 transitions. [2022-03-01 15:28:49,414 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 18710 transitions. Word has length 91 [2022-03-01 15:28:49,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:49,415 INFO L470 AbstractCegarLoop]: Abstraction has 6929 states and 18710 transitions. [2022-03-01 15:28:49,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:49,415 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 18710 transitions. [2022-03-01 15:28:49,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:49,423 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:49,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:49,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-03-01 15:28:49,423 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:49,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:49,424 INFO L85 PathProgramCache]: Analyzing trace with hash -277942174, now seen corresponding path program 20 times [2022-03-01 15:28:49,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:49,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1223517731] [2022-03-01 15:28:49,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:49,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:49,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:49,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:49,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1223517731] [2022-03-01 15:28:49,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1223517731] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:49,510 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:49,510 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:49,510 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855484857] [2022-03-01 15:28:49,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:49,510 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:49,510 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:49,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:49,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:49,511 INFO L87 Difference]: Start difference. First operand 6929 states and 18710 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:49,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:49,823 INFO L93 Difference]: Finished difference Result 8258 states and 22222 transitions. [2022-03-01 15:28:49,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 15:28:49,824 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:49,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:49,834 INFO L225 Difference]: With dead ends: 8258 [2022-03-01 15:28:49,834 INFO L226 Difference]: Without dead ends: 7979 [2022-03-01 15:28:49,834 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=217, Invalid=653, Unknown=0, NotChecked=0, Total=870 [2022-03-01 15:28:49,834 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 185 mSDsluCounter, 1339 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 1541 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:49,835 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [185 Valid, 1541 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:49,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7979 states. [2022-03-01 15:28:49,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7979 to 6937. [2022-03-01 15:28:49,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:49,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-03-01 15:28:49,922 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-03-01 15:28:49,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:49,923 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-03-01 15:28:49,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:49,923 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-03-01 15:28:49,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:49,931 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:49,931 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:49,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-01 15:28:49,931 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:49,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:49,932 INFO L85 PathProgramCache]: Analyzing trace with hash 966019920, now seen corresponding path program 21 times [2022-03-01 15:28:49,932 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:49,932 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025978730] [2022-03-01 15:28:49,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:49,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:49,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:50,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:50,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:50,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025978730] [2022-03-01 15:28:50,020 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025978730] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:50,020 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:50,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:50,020 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951911230] [2022-03-01 15:28:50,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:50,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:50,021 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:50,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:50,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:50,021 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:50,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:50,280 INFO L93 Difference]: Finished difference Result 8206 states and 22087 transitions. [2022-03-01 15:28:50,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:28:50,280 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:50,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:50,292 INFO L225 Difference]: With dead ends: 8206 [2022-03-01 15:28:50,293 INFO L226 Difference]: Without dead ends: 7955 [2022-03-01 15:28:50,293 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:28:50,293 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 141 mSDsluCounter, 1673 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 1867 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:50,293 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [141 Valid, 1867 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:50,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7955 states. [2022-03-01 15:28:50,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7955 to 6941. [2022-03-01 15:28:50,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:50,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-03-01 15:28:50,395 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-03-01 15:28:50,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:50,395 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-03-01 15:28:50,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:50,395 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-03-01 15:28:50,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:50,404 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:50,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:50,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-01 15:28:50,404 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:50,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:50,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1836125942, now seen corresponding path program 22 times [2022-03-01 15:28:50,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:50,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247770989] [2022-03-01 15:28:50,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:50,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:50,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:50,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:50,499 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:50,499 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247770989] [2022-03-01 15:28:50,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247770989] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:50,499 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:50,499 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:50,499 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977080100] [2022-03-01 15:28:50,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:50,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:50,500 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:50,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:50,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:50,500 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:50,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:50,715 INFO L93 Difference]: Finished difference Result 8177 states and 22005 transitions. [2022-03-01 15:28:50,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 15:28:50,715 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:50,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:50,726 INFO L225 Difference]: With dead ends: 8177 [2022-03-01 15:28:50,726 INFO L226 Difference]: Without dead ends: 7915 [2022-03-01 15:28:50,726 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-03-01 15:28:50,727 INFO L933 BasicCegarLoop]: 234 mSDtfsCounter, 131 mSDsluCounter, 1483 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 1678 SdHoareTripleChecker+Invalid, 217 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:50,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [131 Valid, 1678 Invalid, 217 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:50,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7915 states. [2022-03-01 15:28:50,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7915 to 6933. [2022-03-01 15:28:50,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.7000865551067514) internal successors, (18717), 6932 states have internal predecessors, (18717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:50,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18717 transitions. [2022-03-01 15:28:50,818 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18717 transitions. Word has length 91 [2022-03-01 15:28:50,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:50,818 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18717 transitions. [2022-03-01 15:28:50,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:50,818 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18717 transitions. [2022-03-01 15:28:50,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:50,826 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:50,826 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:50,826 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-03-01 15:28:50,826 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:50,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:50,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1466522784, now seen corresponding path program 23 times [2022-03-01 15:28:50,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:50,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907364025] [2022-03-01 15:28:50,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:50,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:50,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:50,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:50,920 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:50,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907364025] [2022-03-01 15:28:50,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907364025] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:50,921 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:50,921 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:50,921 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548459341] [2022-03-01 15:28:50,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:50,921 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:50,921 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:50,921 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:50,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:50,922 INFO L87 Difference]: Start difference. First operand 6933 states and 18717 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:51,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:51,199 INFO L93 Difference]: Finished difference Result 8261 states and 22215 transitions. [2022-03-01 15:28:51,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-01 15:28:51,199 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:51,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:51,211 INFO L225 Difference]: With dead ends: 8261 [2022-03-01 15:28:51,211 INFO L226 Difference]: Without dead ends: 7976 [2022-03-01 15:28:51,212 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=193, Invalid=563, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:28:51,212 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 179 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 1748 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:51,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [179 Valid, 1748 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:51,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7976 states. [2022-03-01 15:28:51,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7976 to 6937. [2022-03-01 15:28:51,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.699538638985006) internal successors, (18724), 6936 states have internal predecessors, (18724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:51,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18724 transitions. [2022-03-01 15:28:51,306 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18724 transitions. Word has length 91 [2022-03-01 15:28:51,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:51,307 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18724 transitions. [2022-03-01 15:28:51,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:51,307 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18724 transitions. [2022-03-01 15:28:51,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:51,315 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:51,315 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:51,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-01 15:28:51,315 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:51,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:51,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1048341130, now seen corresponding path program 24 times [2022-03-01 15:28:51,316 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:51,316 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164116858] [2022-03-01 15:28:51,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:51,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:51,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:51,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:51,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:51,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164116858] [2022-03-01 15:28:51,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164116858] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:51,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:51,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:51,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328892166] [2022-03-01 15:28:51,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:51,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:51,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:51,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:51,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:51,402 INFO L87 Difference]: Start difference. First operand 6937 states and 18724 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:51,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:51,656 INFO L93 Difference]: Finished difference Result 8170 states and 21984 transitions. [2022-03-01 15:28:51,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 15:28:51,656 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:51,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:51,667 INFO L225 Difference]: With dead ends: 8170 [2022-03-01 15:28:51,667 INFO L226 Difference]: Without dead ends: 7919 [2022-03-01 15:28:51,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=147, Invalid=453, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:28:51,668 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 136 mSDsluCounter, 1679 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1874 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:51,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1874 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:51,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7919 states. [2022-03-01 15:28:51,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7919 to 6941. [2022-03-01 15:28:51,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.698991354466859) internal successors, (18731), 6940 states have internal predecessors, (18731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:51,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18731 transitions. [2022-03-01 15:28:51,756 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18731 transitions. Word has length 91 [2022-03-01 15:28:51,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:51,756 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18731 transitions. [2022-03-01 15:28:51,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:51,756 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18731 transitions. [2022-03-01 15:28:51,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:51,764 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:51,765 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:51,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-01 15:28:51,765 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:51,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:51,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1753804732, now seen corresponding path program 25 times [2022-03-01 15:28:51,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:51,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107114683] [2022-03-01 15:28:51,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:51,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:51,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:51,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:51,850 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:51,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107114683] [2022-03-01 15:28:51,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107114683] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:51,850 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:51,850 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:51,850 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625386020] [2022-03-01 15:28:51,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:51,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:51,851 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:51,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:51,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:51,851 INFO L87 Difference]: Start difference. First operand 6941 states and 18731 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:52,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:52,083 INFO L93 Difference]: Finished difference Result 8129 states and 21869 transitions. [2022-03-01 15:28:52,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:28:52,083 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:52,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:52,094 INFO L225 Difference]: With dead ends: 8129 [2022-03-01 15:28:52,095 INFO L226 Difference]: Without dead ends: 7859 [2022-03-01 15:28:52,095 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=501, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:28:52,095 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 134 mSDsluCounter, 1889 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 2073 SdHoareTripleChecker+Invalid, 251 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:52,095 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 2073 Invalid, 251 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:52,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7859 states. [2022-03-01 15:28:52,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7859 to 6925. [2022-03-01 15:28:52,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6925 states, 6924 states have (on average 2.7006065857885617) internal successors, (18699), 6924 states have internal predecessors, (18699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:52,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6925 states to 6925 states and 18699 transitions. [2022-03-01 15:28:52,185 INFO L78 Accepts]: Start accepts. Automaton has 6925 states and 18699 transitions. Word has length 91 [2022-03-01 15:28:52,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:52,185 INFO L470 AbstractCegarLoop]: Abstraction has 6925 states and 18699 transitions. [2022-03-01 15:28:52,185 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:52,185 INFO L276 IsEmpty]: Start isEmpty. Operand 6925 states and 18699 transitions. [2022-03-01 15:28:52,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:52,193 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:52,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:52,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-01 15:28:52,194 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:52,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:52,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1513752728, now seen corresponding path program 26 times [2022-03-01 15:28:52,194 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:52,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978023007] [2022-03-01 15:28:52,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:52,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:52,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:52,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:52,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:52,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978023007] [2022-03-01 15:28:52,272 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1978023007] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:52,272 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:52,272 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:52,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691128062] [2022-03-01 15:28:52,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:52,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:52,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:52,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:52,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:52,274 INFO L87 Difference]: Start difference. First operand 6925 states and 18699 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:52,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:52,581 INFO L93 Difference]: Finished difference Result 8222 states and 22123 transitions. [2022-03-01 15:28:52,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-01 15:28:52,581 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:52,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:52,593 INFO L225 Difference]: With dead ends: 8222 [2022-03-01 15:28:52,593 INFO L226 Difference]: Without dead ends: 7943 [2022-03-01 15:28:52,594 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2022-03-01 15:28:52,594 INFO L933 BasicCegarLoop]: 262 mSDtfsCounter, 243 mSDsluCounter, 1663 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 1888 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:52,594 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [243 Valid, 1888 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:52,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7943 states. [2022-03-01 15:28:52,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7943 to 6937. [2022-03-01 15:28:52,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.7001153402537486) internal successors, (18728), 6936 states have internal predecessors, (18728), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:52,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18728 transitions. [2022-03-01 15:28:52,685 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18728 transitions. Word has length 91 [2022-03-01 15:28:52,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:52,686 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18728 transitions. [2022-03-01 15:28:52,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:52,686 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18728 transitions. [2022-03-01 15:28:52,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:52,694 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:52,694 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:52,694 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-01 15:28:52,694 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:52,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:52,695 INFO L85 PathProgramCache]: Analyzing trace with hash -1537252474, now seen corresponding path program 27 times [2022-03-01 15:28:52,695 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:52,695 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563661487] [2022-03-01 15:28:52,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:52,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:52,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:52,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:52,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:52,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563661487] [2022-03-01 15:28:52,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563661487] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:52,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:52,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:52,784 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296742309] [2022-03-01 15:28:52,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:52,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:52,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:52,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:52,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:52,785 INFO L87 Difference]: Start difference. First operand 6937 states and 18728 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:53,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:53,047 INFO L93 Difference]: Finished difference Result 8158 states and 21955 transitions. [2022-03-01 15:28:53,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:28:53,047 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:53,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:53,059 INFO L225 Difference]: With dead ends: 8158 [2022-03-01 15:28:53,059 INFO L226 Difference]: Without dead ends: 7907 [2022-03-01 15:28:53,059 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:28:53,060 INFO L933 BasicCegarLoop]: 258 mSDtfsCounter, 198 mSDsluCounter, 1873 mSDsCounter, 0 mSdLazyCounter, 231 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 2091 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 231 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:53,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [198 Valid, 2091 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:53,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7907 states. [2022-03-01 15:28:53,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7907 to 6941. [2022-03-01 15:28:53,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.6995677233429394) internal successors, (18735), 6940 states have internal predecessors, (18735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:53,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18735 transitions. [2022-03-01 15:28:53,151 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18735 transitions. Word has length 91 [2022-03-01 15:28:53,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:53,151 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18735 transitions. [2022-03-01 15:28:53,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:53,151 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18735 transitions. [2022-03-01 15:28:53,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:53,159 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:53,159 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:53,159 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-01 15:28:53,159 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:53,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:53,160 INFO L85 PathProgramCache]: Analyzing trace with hash -44431040, now seen corresponding path program 28 times [2022-03-01 15:28:53,160 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:53,160 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200410870] [2022-03-01 15:28:53,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:53,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:53,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:53,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:53,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:53,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200410870] [2022-03-01 15:28:53,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200410870] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:53,237 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:53,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:53,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297558319] [2022-03-01 15:28:53,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:53,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:53,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:53,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:53,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:53,238 INFO L87 Difference]: Start difference. First operand 6941 states and 18735 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:53,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:53,477 INFO L93 Difference]: Finished difference Result 8129 states and 21873 transitions. [2022-03-01 15:28:53,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 15:28:53,477 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:53,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:53,490 INFO L225 Difference]: With dead ends: 8129 [2022-03-01 15:28:53,490 INFO L226 Difference]: Without dead ends: 7867 [2022-03-01 15:28:53,491 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:28:53,491 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 176 mSDsluCounter, 1597 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 1818 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:53,491 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [176 Valid, 1818 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:53,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7867 states. [2022-03-01 15:28:53,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7867 to 6933. [2022-03-01 15:28:53,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6933 states, 6932 states have (on average 2.7000865551067514) internal successors, (18717), 6932 states have internal predecessors, (18717), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6933 states to 6933 states and 18717 transitions. [2022-03-01 15:28:53,586 INFO L78 Accepts]: Start accepts. Automaton has 6933 states and 18717 transitions. Word has length 91 [2022-03-01 15:28:53,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:53,586 INFO L470 AbstractCegarLoop]: Abstraction has 6933 states and 18717 transitions. [2022-03-01 15:28:53,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:53,587 INFO L276 IsEmpty]: Start isEmpty. Operand 6933 states and 18717 transitions. [2022-03-01 15:28:53,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:53,595 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:53,595 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:53,595 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-01 15:28:53,595 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:53,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:53,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1036749610, now seen corresponding path program 29 times [2022-03-01 15:28:53,595 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:53,595 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852102375] [2022-03-01 15:28:53,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:53,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:53,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:53,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:53,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852102375] [2022-03-01 15:28:53,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852102375] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:53,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:53,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:53,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936823195] [2022-03-01 15:28:53,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:53,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:53,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:53,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:53,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:53,674 INFO L87 Difference]: Start difference. First operand 6933 states and 18717 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:53,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:53,943 INFO L93 Difference]: Finished difference Result 8189 states and 22017 transitions. [2022-03-01 15:28:53,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:28:53,943 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:53,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:53,954 INFO L225 Difference]: With dead ends: 8189 [2022-03-01 15:28:53,954 INFO L226 Difference]: Without dead ends: 7904 [2022-03-01 15:28:53,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=207, Invalid=549, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:28:53,955 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 218 mSDsluCounter, 1467 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 1690 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:53,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [218 Valid, 1690 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:53,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7904 states. [2022-03-01 15:28:54,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7904 to 6937. [2022-03-01 15:28:54,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6937 states, 6936 states have (on average 2.699538638985006) internal successors, (18724), 6936 states have internal predecessors, (18724), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:54,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6937 states to 6937 states and 18724 transitions. [2022-03-01 15:28:54,051 INFO L78 Accepts]: Start accepts. Automaton has 6937 states and 18724 transitions. Word has length 91 [2022-03-01 15:28:54,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:54,051 INFO L470 AbstractCegarLoop]: Abstraction has 6937 states and 18724 transitions. [2022-03-01 15:28:54,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:54,052 INFO L276 IsEmpty]: Start isEmpty. Operand 6937 states and 18724 transitions. [2022-03-01 15:28:54,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:54,060 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:54,060 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:54,060 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-01 15:28:54,061 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:54,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:54,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1454931264, now seen corresponding path program 30 times [2022-03-01 15:28:54,061 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:54,061 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153675229] [2022-03-01 15:28:54,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:54,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:54,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:54,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:54,155 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:54,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153675229] [2022-03-01 15:28:54,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153675229] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:54,155 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:54,155 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:54,156 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222392453] [2022-03-01 15:28:54,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:54,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:54,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:54,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:54,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:54,158 INFO L87 Difference]: Start difference. First operand 6937 states and 18724 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:54,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:54,394 INFO L93 Difference]: Finished difference Result 8122 states and 21852 transitions. [2022-03-01 15:28:54,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 15:28:54,394 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:54,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:54,406 INFO L225 Difference]: With dead ends: 8122 [2022-03-01 15:28:54,406 INFO L226 Difference]: Without dead ends: 7871 [2022-03-01 15:28:54,406 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=541, Unknown=0, NotChecked=0, Total=702 [2022-03-01 15:28:54,407 INFO L933 BasicCegarLoop]: 255 mSDtfsCounter, 199 mSDsluCounter, 1870 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 2085 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:54,407 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [199 Valid, 2085 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:54,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7871 states. [2022-03-01 15:28:54,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7871 to 6941. [2022-03-01 15:28:54,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6941 states, 6940 states have (on average 2.698991354466859) internal successors, (18731), 6940 states have internal predecessors, (18731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:54,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6941 states to 6941 states and 18731 transitions. [2022-03-01 15:28:54,498 INFO L78 Accepts]: Start accepts. Automaton has 6941 states and 18731 transitions. Word has length 91 [2022-03-01 15:28:54,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:54,498 INFO L470 AbstractCegarLoop]: Abstraction has 6941 states and 18731 transitions. [2022-03-01 15:28:54,498 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:54,498 INFO L276 IsEmpty]: Start isEmpty. Operand 6941 states and 18731 transitions. [2022-03-01 15:28:54,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:54,506 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:54,506 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:54,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-01 15:28:54,507 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:54,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:54,507 INFO L85 PathProgramCache]: Analyzing trace with hash 37890170, now seen corresponding path program 31 times [2022-03-01 15:28:54,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:54,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029423740] [2022-03-01 15:28:54,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:54,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:54,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:54,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:54,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:54,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029423740] [2022-03-01 15:28:54,608 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029423740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:54,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:54,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:54,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190740035] [2022-03-01 15:28:54,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:54,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:54,609 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:54,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:54,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:54,609 INFO L87 Difference]: Start difference. First operand 6941 states and 18731 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:54,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:54,837 INFO L93 Difference]: Finished difference Result 8093 states and 21770 transitions. [2022-03-01 15:28:54,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:28:54,838 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:54,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:54,849 INFO L225 Difference]: With dead ends: 8093 [2022-03-01 15:28:54,849 INFO L226 Difference]: Without dead ends: 7827 [2022-03-01 15:28:54,849 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=169, Invalid=533, Unknown=0, NotChecked=0, Total=702 [2022-03-01 15:28:54,850 INFO L933 BasicCegarLoop]: 252 mSDtfsCounter, 201 mSDsluCounter, 1842 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 2054 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:54,850 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 2054 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:54,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7827 states. [2022-03-01 15:28:54,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7827 to 6929. [2022-03-01 15:28:54,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6929 states, 6928 states have (on average 2.7000577367205545) internal successors, (18706), 6928 states have internal predecessors, (18706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:54,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6929 states to 6929 states and 18706 transitions. [2022-03-01 15:28:54,939 INFO L78 Accepts]: Start accepts. Automaton has 6929 states and 18706 transitions. Word has length 91 [2022-03-01 15:28:54,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:54,939 INFO L470 AbstractCegarLoop]: Abstraction has 6929 states and 18706 transitions. [2022-03-01 15:28:54,939 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:54,939 INFO L276 IsEmpty]: Start isEmpty. Operand 6929 states and 18706 transitions. [2022-03-01 15:28:54,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:54,947 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:54,947 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:54,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-03-01 15:28:54,947 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:54,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:54,948 INFO L85 PathProgramCache]: Analyzing trace with hash 86118466, now seen corresponding path program 32 times [2022-03-01 15:28:54,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:54,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65469983] [2022-03-01 15:28:54,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:54,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:54,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:55,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:55,029 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:55,029 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65469983] [2022-03-01 15:28:55,029 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65469983] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:55,029 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:55,029 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:55,029 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846674381] [2022-03-01 15:28:55,029 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:55,029 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:55,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:55,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:55,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:55,030 INFO L87 Difference]: Start difference. First operand 6929 states and 18706 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:55,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:55,420 INFO L93 Difference]: Finished difference Result 8651 states and 23106 transitions. [2022-03-01 15:28:55,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 15:28:55,421 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:55,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:55,432 INFO L225 Difference]: With dead ends: 8651 [2022-03-01 15:28:55,433 INFO L226 Difference]: Without dead ends: 8344 [2022-03-01 15:28:55,433 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-03-01 15:28:55,433 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 562 mSDsluCounter, 2192 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 2468 SdHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:55,434 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [562 Valid, 2468 Invalid, 187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:55,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8344 states. [2022-03-01 15:28:55,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8344 to 6877. [2022-03-01 15:28:55,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6877 states, 6876 states have (on average 2.6961896451425247) internal successors, (18539), 6876 states have internal predecessors, (18539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:55,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6877 states to 6877 states and 18539 transitions. [2022-03-01 15:28:55,529 INFO L78 Accepts]: Start accepts. Automaton has 6877 states and 18539 transitions. Word has length 91 [2022-03-01 15:28:55,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:55,530 INFO L470 AbstractCegarLoop]: Abstraction has 6877 states and 18539 transitions. [2022-03-01 15:28:55,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:55,530 INFO L276 IsEmpty]: Start isEmpty. Operand 6877 states and 18539 transitions. [2022-03-01 15:28:55,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:55,538 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:55,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:55,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-03-01 15:28:55,538 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:55,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:55,538 INFO L85 PathProgramCache]: Analyzing trace with hash -1742264038, now seen corresponding path program 33 times [2022-03-01 15:28:55,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:55,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276731157] [2022-03-01 15:28:55,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:55,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:55,615 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:55,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276731157] [2022-03-01 15:28:55,615 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276731157] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:55,615 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:55,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:55,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [606664280] [2022-03-01 15:28:55,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:55,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:55,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:55,616 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:55,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:55,616 INFO L87 Difference]: Start difference. First operand 6877 states and 18539 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:55,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:55,905 INFO L93 Difference]: Finished difference Result 8114 states and 21798 transitions. [2022-03-01 15:28:55,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:28:55,906 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:55,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:55,916 INFO L225 Difference]: With dead ends: 8114 [2022-03-01 15:28:55,916 INFO L226 Difference]: Without dead ends: 7835 [2022-03-01 15:28:55,917 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 241 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=242, Invalid=814, Unknown=0, NotChecked=0, Total=1056 [2022-03-01 15:28:55,917 INFO L933 BasicCegarLoop]: 286 mSDtfsCounter, 324 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 324 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 153 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:55,917 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [324 Valid, 1754 Invalid, 153 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:55,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7835 states. [2022-03-01 15:28:55,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7835 to 6881. [2022-03-01 15:28:55,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6881 states, 6880 states have (on average 2.6956395348837208) internal successors, (18546), 6880 states have internal predecessors, (18546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:56,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6881 states to 6881 states and 18546 transitions. [2022-03-01 15:28:56,008 INFO L78 Accepts]: Start accepts. Automaton has 6881 states and 18546 transitions. Word has length 91 [2022-03-01 15:28:56,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:56,008 INFO L470 AbstractCegarLoop]: Abstraction has 6881 states and 18546 transitions. [2022-03-01 15:28:56,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:56,008 INFO L276 IsEmpty]: Start isEmpty. Operand 6881 states and 18546 transitions. [2022-03-01 15:28:56,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:56,016 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:56,016 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:56,016 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-03-01 15:28:56,016 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:56,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:56,017 INFO L85 PathProgramCache]: Analyzing trace with hash -498301944, now seen corresponding path program 34 times [2022-03-01 15:28:56,017 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:56,017 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058797519] [2022-03-01 15:28:56,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:56,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:56,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:56,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:56,091 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:56,091 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058797519] [2022-03-01 15:28:56,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058797519] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:56,091 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:56,091 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:56,091 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036071482] [2022-03-01 15:28:56,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:56,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:56,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:56,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:56,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:56,092 INFO L87 Difference]: Start difference. First operand 6881 states and 18546 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:56,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:56,305 INFO L93 Difference]: Finished difference Result 8034 states and 21586 transitions. [2022-03-01 15:28:56,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:28:56,305 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:56,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:56,316 INFO L225 Difference]: With dead ends: 8034 [2022-03-01 15:28:56,316 INFO L226 Difference]: Without dead ends: 7783 [2022-03-01 15:28:56,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=590, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:28:56,317 INFO L933 BasicCegarLoop]: 279 mSDtfsCounter, 268 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 171 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 2013 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:56,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [268 Valid, 2013 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 171 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:56,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7783 states. [2022-03-01 15:28:56,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7783 to 6885. [2022-03-01 15:28:56,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6885 states, 6884 states have (on average 2.6950900639163278) internal successors, (18553), 6884 states have internal predecessors, (18553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:56,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6885 states to 6885 states and 18553 transitions. [2022-03-01 15:28:56,408 INFO L78 Accepts]: Start accepts. Automaton has 6885 states and 18553 transitions. Word has length 91 [2022-03-01 15:28:56,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:56,408 INFO L470 AbstractCegarLoop]: Abstraction has 6885 states and 18553 transitions. [2022-03-01 15:28:56,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:56,409 INFO L276 IsEmpty]: Start isEmpty. Operand 6885 states and 18553 transitions. [2022-03-01 15:28:56,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:56,417 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:56,417 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:56,417 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-03-01 15:28:56,417 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:56,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:56,417 INFO L85 PathProgramCache]: Analyzing trace with hash 994519490, now seen corresponding path program 35 times [2022-03-01 15:28:56,418 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:56,418 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684217167] [2022-03-01 15:28:56,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:56,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:56,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:56,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:56,508 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:56,508 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684217167] [2022-03-01 15:28:56,508 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684217167] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:56,508 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:56,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:56,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605508147] [2022-03-01 15:28:56,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:56,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:56,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:56,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:56,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:56,509 INFO L87 Difference]: Start difference. First operand 6885 states and 18553 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:56,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:56,702 INFO L93 Difference]: Finished difference Result 7997 states and 21482 transitions. [2022-03-01 15:28:56,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:28:56,702 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:56,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:56,713 INFO L225 Difference]: With dead ends: 7997 [2022-03-01 15:28:56,713 INFO L226 Difference]: Without dead ends: 7719 [2022-03-01 15:28:56,713 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=152, Invalid=448, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:28:56,714 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 238 mSDsluCounter, 1949 mSDsCounter, 0 mSdLazyCounter, 184 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 2182 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 184 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:56,714 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [238 Valid, 2182 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 184 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:56,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7719 states. [2022-03-01 15:28:56,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7719 to 6845. [2022-03-01 15:28:56,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6845 states, 6844 states have (on average 2.695353594389246) internal successors, (18447), 6844 states have internal predecessors, (18447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:56,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6845 states to 6845 states and 18447 transitions. [2022-03-01 15:28:56,804 INFO L78 Accepts]: Start accepts. Automaton has 6845 states and 18447 transitions. Word has length 91 [2022-03-01 15:28:56,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:56,804 INFO L470 AbstractCegarLoop]: Abstraction has 6845 states and 18447 transitions. [2022-03-01 15:28:56,804 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:56,804 INFO L276 IsEmpty]: Start isEmpty. Operand 6845 states and 18447 transitions. [2022-03-01 15:28:56,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:56,812 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:56,812 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:56,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-03-01 15:28:56,813 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:56,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:56,813 INFO L85 PathProgramCache]: Analyzing trace with hash 629696244, now seen corresponding path program 1 times [2022-03-01 15:28:56,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:56,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768000520] [2022-03-01 15:28:56,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:56,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:56,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:56,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:56,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:56,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768000520] [2022-03-01 15:28:56,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768000520] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:56,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:56,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:56,929 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791411494] [2022-03-01 15:28:56,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:56,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:56,929 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:56,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:56,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:56,930 INFO L87 Difference]: Start difference. First operand 6845 states and 18447 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:57,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:57,304 INFO L93 Difference]: Finished difference Result 8662 states and 23037 transitions. [2022-03-01 15:28:57,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 15:28:57,304 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:57,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:57,317 INFO L225 Difference]: With dead ends: 8662 [2022-03-01 15:28:57,318 INFO L226 Difference]: Without dead ends: 8340 [2022-03-01 15:28:57,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 313 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=320, Invalid=1012, Unknown=0, NotChecked=0, Total=1332 [2022-03-01 15:28:57,318 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 481 mSDsluCounter, 1899 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 481 SdHoareTripleChecker+Valid, 2200 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:57,319 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [481 Valid, 2200 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:57,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8340 states. [2022-03-01 15:28:57,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8340 to 6753. [2022-03-01 15:28:57,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6753 states, 6752 states have (on average 2.696830568720379) internal successors, (18209), 6752 states have internal predecessors, (18209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:57,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6753 states to 6753 states and 18209 transitions. [2022-03-01 15:28:57,414 INFO L78 Accepts]: Start accepts. Automaton has 6753 states and 18209 transitions. Word has length 91 [2022-03-01 15:28:57,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:57,414 INFO L470 AbstractCegarLoop]: Abstraction has 6753 states and 18209 transitions. [2022-03-01 15:28:57,414 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:57,414 INFO L276 IsEmpty]: Start isEmpty. Operand 6753 states and 18209 transitions. [2022-03-01 15:28:57,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:57,422 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:57,422 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:57,422 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-03-01 15:28:57,422 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:57,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:57,423 INFO L85 PathProgramCache]: Analyzing trace with hash 1258042224, now seen corresponding path program 2 times [2022-03-01 15:28:57,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:57,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178123199] [2022-03-01 15:28:57,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:57,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:57,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:57,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:57,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:57,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178123199] [2022-03-01 15:28:57,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178123199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:57,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:57,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:57,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530430374] [2022-03-01 15:28:57,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:57,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:57,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:57,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:57,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:57,505 INFO L87 Difference]: Start difference. First operand 6753 states and 18209 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:57,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:57,806 INFO L93 Difference]: Finished difference Result 8011 states and 21504 transitions. [2022-03-01 15:28:57,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:28:57,806 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:57,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:57,818 INFO L225 Difference]: With dead ends: 8011 [2022-03-01 15:28:57,818 INFO L226 Difference]: Without dead ends: 7720 [2022-03-01 15:28:57,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=242, Invalid=814, Unknown=0, NotChecked=0, Total=1056 [2022-03-01 15:28:57,819 INFO L933 BasicCegarLoop]: 320 mSDtfsCounter, 255 mSDsluCounter, 1654 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 255 SdHoareTripleChecker+Valid, 1931 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:57,819 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [255 Valid, 1931 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:57,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-03-01 15:28:57,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6757. [2022-03-01 15:28:57,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6757 states, 6756 states have (on average 2.6962699822380105) internal successors, (18216), 6756 states have internal predecessors, (18216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:57,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6757 states to 6757 states and 18216 transitions. [2022-03-01 15:28:57,906 INFO L78 Accepts]: Start accepts. Automaton has 6757 states and 18216 transitions. Word has length 91 [2022-03-01 15:28:57,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:57,906 INFO L470 AbstractCegarLoop]: Abstraction has 6757 states and 18216 transitions. [2022-03-01 15:28:57,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:57,907 INFO L276 IsEmpty]: Start isEmpty. Operand 6757 states and 18216 transitions. [2022-03-01 15:28:57,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:57,914 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:57,915 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:57,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-03-01 15:28:57,915 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:57,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:57,915 INFO L85 PathProgramCache]: Analyzing trace with hash 839860570, now seen corresponding path program 3 times [2022-03-01 15:28:57,915 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:57,915 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858665614] [2022-03-01 15:28:57,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:57,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:57,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:57,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:57,999 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:57,999 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858665614] [2022-03-01 15:28:57,999 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858665614] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:57,999 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:57,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:57,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739708119] [2022-03-01 15:28:57,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:57,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:58,000 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:58,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:58,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:58,000 INFO L87 Difference]: Start difference. First operand 6757 states and 18216 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:58,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:58,213 INFO L93 Difference]: Finished difference Result 7908 states and 21240 transitions. [2022-03-01 15:28:58,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-01 15:28:58,213 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:58,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:58,224 INFO L225 Difference]: With dead ends: 7908 [2022-03-01 15:28:58,224 INFO L226 Difference]: Without dead ends: 7651 [2022-03-01 15:28:58,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2022-03-01 15:28:58,224 INFO L933 BasicCegarLoop]: 304 mSDtfsCounter, 188 mSDsluCounter, 1811 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 2076 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:58,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 2076 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:58,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7651 states. [2022-03-01 15:28:58,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7651 to 6761. [2022-03-01 15:28:58,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6761 states, 6760 states have (on average 2.6957100591715975) internal successors, (18223), 6760 states have internal predecessors, (18223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:58,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6761 states to 6761 states and 18223 transitions. [2022-03-01 15:28:58,310 INFO L78 Accepts]: Start accepts. Automaton has 6761 states and 18223 transitions. Word has length 91 [2022-03-01 15:28:58,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:58,311 INFO L470 AbstractCegarLoop]: Abstraction has 6761 states and 18223 transitions. [2022-03-01 15:28:58,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:58,311 INFO L276 IsEmpty]: Start isEmpty. Operand 6761 states and 18223 transitions. [2022-03-01 15:28:58,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:58,319 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:58,319 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:58,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-03-01 15:28:58,319 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:58,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:58,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1962285292, now seen corresponding path program 4 times [2022-03-01 15:28:58,320 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:58,320 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545367915] [2022-03-01 15:28:58,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:58,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:58,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:58,394 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:58,394 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545367915] [2022-03-01 15:28:58,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545367915] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:58,394 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:58,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:58,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605922127] [2022-03-01 15:28:58,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:58,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:58,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:58,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:58,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:58,395 INFO L87 Difference]: Start difference. First operand 6761 states and 18223 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:58,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:58,630 INFO L93 Difference]: Finished difference Result 7879 states and 21158 transitions. [2022-03-01 15:28:58,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:28:58,630 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:58,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:58,641 INFO L225 Difference]: With dead ends: 7879 [2022-03-01 15:28:58,641 INFO L226 Difference]: Without dead ends: 7607 [2022-03-01 15:28:58,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=590, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:28:58,642 INFO L933 BasicCegarLoop]: 312 mSDtfsCounter, 203 mSDsluCounter, 2185 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 2445 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:58,642 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [203 Valid, 2445 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:58,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7607 states. [2022-03-01 15:28:58,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7607 to 6735. [2022-03-01 15:28:58,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6735 states, 6734 states have (on average 2.696762696762697) internal successors, (18160), 6734 states have internal predecessors, (18160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:58,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6735 states to 6735 states and 18160 transitions. [2022-03-01 15:28:58,729 INFO L78 Accepts]: Start accepts. Automaton has 6735 states and 18160 transitions. Word has length 91 [2022-03-01 15:28:58,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:58,730 INFO L470 AbstractCegarLoop]: Abstraction has 6735 states and 18160 transitions. [2022-03-01 15:28:58,730 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:58,730 INFO L276 IsEmpty]: Start isEmpty. Operand 6735 states and 18160 transitions. [2022-03-01 15:28:58,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:58,755 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:58,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:58,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-03-01 15:28:58,756 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:58,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:58,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1676722962, now seen corresponding path program 5 times [2022-03-01 15:28:58,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:58,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119030640] [2022-03-01 15:28:58,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:58,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:58,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:58,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:58,845 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:58,845 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119030640] [2022-03-01 15:28:58,845 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119030640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:58,845 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:58,845 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:58,845 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430115028] [2022-03-01 15:28:58,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:58,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:58,846 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:58,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:58,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:58,846 INFO L87 Difference]: Start difference. First operand 6735 states and 18160 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:59,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:59,140 INFO L93 Difference]: Finished difference Result 8008 states and 21503 transitions. [2022-03-01 15:28:59,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:28:59,140 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:59,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:59,152 INFO L225 Difference]: With dead ends: 8008 [2022-03-01 15:28:59,152 INFO L226 Difference]: Without dead ends: 7723 [2022-03-01 15:28:59,153 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2022-03-01 15:28:59,153 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 187 mSDsluCounter, 2165 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 2392 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:59,153 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 2392 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:59,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7723 states. [2022-03-01 15:28:59,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7723 to 6743. [2022-03-01 15:28:59,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6742 states have (on average 2.6962325719371107) internal successors, (18178), 6742 states have internal predecessors, (18178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:59,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 18178 transitions. [2022-03-01 15:28:59,243 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 18178 transitions. Word has length 91 [2022-03-01 15:28:59,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:59,243 INFO L470 AbstractCegarLoop]: Abstraction has 6743 states and 18178 transitions. [2022-03-01 15:28:59,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:59,243 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 18178 transitions. [2022-03-01 15:28:59,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:59,251 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:59,251 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:59,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-03-01 15:28:59,251 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:59,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:59,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1374282240, now seen corresponding path program 6 times [2022-03-01 15:28:59,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:59,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241613594] [2022-03-01 15:28:59,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:59,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:59,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:59,329 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:59,329 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241613594] [2022-03-01 15:28:59,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [241613594] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:59,329 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:59,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:59,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403449934] [2022-03-01 15:28:59,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:59,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:59,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:59,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:59,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:59,330 INFO L87 Difference]: Start difference. First operand 6743 states and 18178 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:59,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:59,545 INFO L93 Difference]: Finished difference Result 7956 states and 21368 transitions. [2022-03-01 15:28:59,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:28:59,546 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:59,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:59,557 INFO L225 Difference]: With dead ends: 7956 [2022-03-01 15:28:59,557 INFO L226 Difference]: Without dead ends: 7699 [2022-03-01 15:28:59,557 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=166, Invalid=484, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:28:59,558 INFO L933 BasicCegarLoop]: 274 mSDtfsCounter, 160 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 199 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1788 SdHoareTripleChecker+Invalid, 199 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:59,558 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [160 Valid, 1788 Invalid, 199 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 199 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:28:59,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7699 states. [2022-03-01 15:28:59,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7699 to 6747. [2022-03-01 15:28:59,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 6746 states have (on average 2.6956715090423953) internal successors, (18185), 6746 states have internal predecessors, (18185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:59,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 18185 transitions. [2022-03-01 15:28:59,645 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 18185 transitions. Word has length 91 [2022-03-01 15:28:59,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:28:59,646 INFO L470 AbstractCegarLoop]: Abstraction has 6747 states and 18185 transitions. [2022-03-01 15:28:59,646 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:59,646 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 18185 transitions. [2022-03-01 15:28:59,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:28:59,653 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:28:59,654 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:28:59,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-03-01 15:28:59,654 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:28:59,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:28:59,654 INFO L85 PathProgramCache]: Analyzing trace with hash 118539194, now seen corresponding path program 7 times [2022-03-01 15:28:59,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:28:59,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614580207] [2022-03-01 15:28:59,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:28:59,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:28:59,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:28:59,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:28:59,731 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:28:59,731 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614580207] [2022-03-01 15:28:59,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614580207] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:28:59,731 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:28:59,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:28:59,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782037630] [2022-03-01 15:28:59,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:28:59,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:28:59,732 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:28:59,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:28:59,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:28:59,732 INFO L87 Difference]: Start difference. First operand 6747 states and 18185 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:28:59,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:28:59,984 INFO L93 Difference]: Finished difference Result 7927 states and 21286 transitions. [2022-03-01 15:28:59,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 15:28:59,984 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:28:59,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:28:59,997 INFO L225 Difference]: With dead ends: 7927 [2022-03-01 15:28:59,997 INFO L226 Difference]: Without dead ends: 7659 [2022-03-01 15:28:59,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=158, Invalid=492, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:28:59,999 INFO L933 BasicCegarLoop]: 276 mSDtfsCounter, 164 mSDsluCounter, 1707 mSDsCounter, 0 mSdLazyCounter, 233 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 1945 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 233 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:28:59,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 1945 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 233 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:00,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7659 states. [2022-03-01 15:29:00,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7659 to 6739. [2022-03-01 15:29:00,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6739 states, 6738 states have (on average 2.6962006530127636) internal successors, (18167), 6738 states have internal predecessors, (18167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:00,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6739 states to 6739 states and 18167 transitions. [2022-03-01 15:29:00,088 INFO L78 Accepts]: Start accepts. Automaton has 6739 states and 18167 transitions. Word has length 91 [2022-03-01 15:29:00,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:00,088 INFO L470 AbstractCegarLoop]: Abstraction has 6739 states and 18167 transitions. [2022-03-01 15:29:00,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:00,089 INFO L276 IsEmpty]: Start isEmpty. Operand 6739 states and 18167 transitions. [2022-03-01 15:29:00,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:00,097 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:00,097 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:00,097 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-03-01 15:29:00,097 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:00,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:00,097 INFO L85 PathProgramCache]: Analyzing trace with hash -873779376, now seen corresponding path program 8 times [2022-03-01 15:29:00,098 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:00,098 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884955496] [2022-03-01 15:29:00,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:00,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:00,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:00,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:00,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:00,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884955496] [2022-03-01 15:29:00,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884955496] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:00,181 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:00,181 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:00,181 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060722428] [2022-03-01 15:29:00,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:00,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:00,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:00,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:00,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:00,181 INFO L87 Difference]: Start difference. First operand 6739 states and 18167 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:00,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:00,492 INFO L93 Difference]: Finished difference Result 8011 states and 21496 transitions. [2022-03-01 15:29:00,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-01 15:29:00,492 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:00,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:00,503 INFO L225 Difference]: With dead ends: 8011 [2022-03-01 15:29:00,503 INFO L226 Difference]: Without dead ends: 7720 [2022-03-01 15:29:00,503 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=238, Invalid=754, Unknown=0, NotChecked=0, Total=992 [2022-03-01 15:29:00,504 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 215 mSDsluCounter, 1740 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 1979 SdHoareTripleChecker+Invalid, 240 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:00,504 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 1979 Invalid, 240 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:00,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-03-01 15:29:00,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6743. [2022-03-01 15:29:00,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6743 states, 6742 states have (on average 2.6956392761791754) internal successors, (18174), 6742 states have internal predecessors, (18174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:00,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6743 states to 6743 states and 18174 transitions. [2022-03-01 15:29:00,592 INFO L78 Accepts]: Start accepts. Automaton has 6743 states and 18174 transitions. Word has length 91 [2022-03-01 15:29:00,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:00,623 INFO L470 AbstractCegarLoop]: Abstraction has 6743 states and 18174 transitions. [2022-03-01 15:29:00,623 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:00,623 INFO L276 IsEmpty]: Start isEmpty. Operand 6743 states and 18174 transitions. [2022-03-01 15:29:00,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:00,631 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:00,631 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:00,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-03-01 15:29:00,631 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:00,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:00,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1291961030, now seen corresponding path program 9 times [2022-03-01 15:29:00,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:00,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [681348863] [2022-03-01 15:29:00,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:00,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:00,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:00,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:00,715 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:00,715 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [681348863] [2022-03-01 15:29:00,715 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [681348863] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:00,715 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:00,715 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:00,715 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614128502] [2022-03-01 15:29:00,715 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:00,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:00,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:00,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:00,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:00,716 INFO L87 Difference]: Start difference. First operand 6743 states and 18174 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:00,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:00,953 INFO L93 Difference]: Finished difference Result 7920 states and 21265 transitions. [2022-03-01 15:29:00,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 15:29:00,954 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:00,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:00,965 INFO L225 Difference]: With dead ends: 7920 [2022-03-01 15:29:00,965 INFO L226 Difference]: Without dead ends: 7663 [2022-03-01 15:29:00,966 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=445, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:29:00,966 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 158 mSDsluCounter, 1909 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 158 SdHoareTripleChecker+Valid, 2142 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:00,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [158 Valid, 2142 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:00,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7663 states. [2022-03-01 15:29:01,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7663 to 6747. [2022-03-01 15:29:01,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6747 states, 6746 states have (on average 2.6950785650756) internal successors, (18181), 6746 states have internal predecessors, (18181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:01,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6747 states to 6747 states and 18181 transitions. [2022-03-01 15:29:01,055 INFO L78 Accepts]: Start accepts. Automaton has 6747 states and 18181 transitions. Word has length 91 [2022-03-01 15:29:01,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:01,055 INFO L470 AbstractCegarLoop]: Abstraction has 6747 states and 18181 transitions. [2022-03-01 15:29:01,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:01,055 INFO L276 IsEmpty]: Start isEmpty. Operand 6747 states and 18181 transitions. [2022-03-01 15:29:01,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:01,063 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:01,063 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:01,063 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-03-01 15:29:01,064 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:01,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:01,064 INFO L85 PathProgramCache]: Analyzing trace with hash 200860404, now seen corresponding path program 10 times [2022-03-01 15:29:01,064 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:01,064 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730330274] [2022-03-01 15:29:01,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:01,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:01,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:01,150 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:01,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730330274] [2022-03-01 15:29:01,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730330274] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:01,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:01,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:01,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670496395] [2022-03-01 15:29:01,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:01,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:01,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:01,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:01,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:01,151 INFO L87 Difference]: Start difference. First operand 6747 states and 18181 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:01,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:01,383 INFO L93 Difference]: Finished difference Result 7879 states and 21150 transitions. [2022-03-01 15:29:01,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:29:01,384 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:01,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:01,394 INFO L225 Difference]: With dead ends: 7879 [2022-03-01 15:29:01,394 INFO L226 Difference]: Without dead ends: 7603 [2022-03-01 15:29:01,395 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:29:01,395 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 171 mSDsluCounter, 1975 mSDsCounter, 0 mSdLazyCounter, 238 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 2201 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 238 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:01,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [171 Valid, 2201 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:01,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7603 states. [2022-03-01 15:29:01,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7603 to 6717. [2022-03-01 15:29:01,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6717 states, 6716 states have (on average 2.6966944609886836) internal successors, (18111), 6716 states have internal predecessors, (18111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:01,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6717 states to 6717 states and 18111 transitions. [2022-03-01 15:29:01,482 INFO L78 Accepts]: Start accepts. Automaton has 6717 states and 18111 transitions. Word has length 91 [2022-03-01 15:29:01,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:01,483 INFO L470 AbstractCegarLoop]: Abstraction has 6717 states and 18111 transitions. [2022-03-01 15:29:01,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:01,483 INFO L276 IsEmpty]: Start isEmpty. Operand 6717 states and 18111 transitions. [2022-03-01 15:29:01,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:01,491 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:01,491 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:01,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-03-01 15:29:01,491 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:01,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:01,492 INFO L85 PathProgramCache]: Analyzing trace with hash 712233108, now seen corresponding path program 11 times [2022-03-01 15:29:01,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:01,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985689531] [2022-03-01 15:29:01,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:01,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:01,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:01,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:01,591 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:01,591 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985689531] [2022-03-01 15:29:01,591 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985689531] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:01,591 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:01,592 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:01,592 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24810799] [2022-03-01 15:29:01,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:01,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:01,592 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:01,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:01,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:01,593 INFO L87 Difference]: Start difference. First operand 6717 states and 18111 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:01,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:01,911 INFO L93 Difference]: Finished difference Result 8104 states and 21751 transitions. [2022-03-01 15:29:01,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 15:29:01,912 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:01,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:01,925 INFO L225 Difference]: With dead ends: 8104 [2022-03-01 15:29:01,925 INFO L226 Difference]: Without dead ends: 7791 [2022-03-01 15:29:01,926 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=226, Invalid=644, Unknown=0, NotChecked=0, Total=870 [2022-03-01 15:29:01,926 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 187 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 1804 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:01,926 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [187 Valid, 1804 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:01,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7791 states. [2022-03-01 15:29:02,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7791 to 6725. [2022-03-01 15:29:02,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6725 states, 6724 states have (on average 2.696162998215348) internal successors, (18129), 6724 states have internal predecessors, (18129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:02,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6725 states to 6725 states and 18129 transitions. [2022-03-01 15:29:02,032 INFO L78 Accepts]: Start accepts. Automaton has 6725 states and 18129 transitions. Word has length 91 [2022-03-01 15:29:02,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:02,033 INFO L470 AbstractCegarLoop]: Abstraction has 6725 states and 18129 transitions. [2022-03-01 15:29:02,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:02,033 INFO L276 IsEmpty]: Start isEmpty. Operand 6725 states and 18129 transitions. [2022-03-01 15:29:02,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:02,042 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:02,042 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:02,042 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-03-01 15:29:02,042 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:02,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:02,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1223637084, now seen corresponding path program 12 times [2022-03-01 15:29:02,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:02,043 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168433076] [2022-03-01 15:29:02,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:02,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:02,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:02,121 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:02,121 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168433076] [2022-03-01 15:29:02,121 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168433076] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:02,121 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:02,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:02,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226627375] [2022-03-01 15:29:02,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:02,122 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:02,122 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:02,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:02,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:02,122 INFO L87 Difference]: Start difference. First operand 6725 states and 18129 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:02,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:02,404 INFO L93 Difference]: Finished difference Result 8076 states and 21682 transitions. [2022-03-01 15:29:02,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-01 15:29:02,404 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:02,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:02,415 INFO L225 Difference]: With dead ends: 8076 [2022-03-01 15:29:02,416 INFO L226 Difference]: Without dead ends: 7791 [2022-03-01 15:29:02,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 166 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2022-03-01 15:29:02,416 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 161 mSDsluCounter, 1951 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 2154 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:02,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 2154 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:02,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7791 states. [2022-03-01 15:29:02,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7791 to 6729. [2022-03-01 15:29:02,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6956004756242566) internal successors, (18136), 6728 states have internal predecessors, (18136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:02,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18136 transitions. [2022-03-01 15:29:02,536 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18136 transitions. Word has length 91 [2022-03-01 15:29:02,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:02,536 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18136 transitions. [2022-03-01 15:29:02,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:02,536 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18136 transitions. [2022-03-01 15:29:02,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:02,543 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:02,544 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:02,544 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-03-01 15:29:02,544 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:02,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:02,544 INFO L85 PathProgramCache]: Analyzing trace with hash 20325010, now seen corresponding path program 13 times [2022-03-01 15:29:02,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:02,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127798765] [2022-03-01 15:29:02,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:02,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:02,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:02,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:02,622 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127798765] [2022-03-01 15:29:02,622 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127798765] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:02,622 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:02,622 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:02,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697825101] [2022-03-01 15:29:02,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:02,623 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:02,623 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:02,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:02,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:02,623 INFO L87 Difference]: Start difference. First operand 6729 states and 18136 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:02,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:02,829 INFO L93 Difference]: Finished difference Result 7996 states and 21470 transitions. [2022-03-01 15:29:02,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:29:02,829 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:02,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:02,840 INFO L225 Difference]: With dead ends: 7996 [2022-03-01 15:29:02,840 INFO L226 Difference]: Without dead ends: 7739 [2022-03-01 15:29:02,840 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=142, Invalid=458, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:29:02,840 INFO L933 BasicCegarLoop]: 238 mSDtfsCounter, 123 mSDsluCounter, 1358 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1569 SdHoareTripleChecker+Invalid, 214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:02,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1569 Invalid, 214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:02,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7739 states. [2022-03-01 15:29:02,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7739 to 6733. [2022-03-01 15:29:02,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6950386215092097) internal successors, (18143), 6732 states have internal predecessors, (18143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:02,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18143 transitions. [2022-03-01 15:29:02,928 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18143 transitions. Word has length 91 [2022-03-01 15:29:02,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:02,928 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18143 transitions. [2022-03-01 15:29:02,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:02,928 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18143 transitions. [2022-03-01 15:29:02,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:02,935 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:02,936 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:02,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-03-01 15:29:02,936 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:02,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:02,936 INFO L85 PathProgramCache]: Analyzing trace with hash 1513146444, now seen corresponding path program 14 times [2022-03-01 15:29:02,936 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:02,936 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988910717] [2022-03-01 15:29:02,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:02,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:02,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:03,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:03,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:03,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988910717] [2022-03-01 15:29:03,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1988910717] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:03,016 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:03,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:03,016 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172991150] [2022-03-01 15:29:03,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:03,016 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:03,016 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:03,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:03,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:03,017 INFO L87 Difference]: Start difference. First operand 6733 states and 18143 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:03,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:03,233 INFO L93 Difference]: Finished difference Result 7959 states and 21366 transitions. [2022-03-01 15:29:03,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:29:03,234 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:03,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:03,244 INFO L225 Difference]: With dead ends: 7959 [2022-03-01 15:29:03,245 INFO L226 Difference]: Without dead ends: 7687 [2022-03-01 15:29:03,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2022-03-01 15:29:03,245 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 123 mSDsluCounter, 1368 mSDsCounter, 0 mSdLazyCounter, 209 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 1574 SdHoareTripleChecker+Invalid, 209 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 209 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:03,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [123 Valid, 1574 Invalid, 209 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 209 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:03,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7687 states. [2022-03-01 15:29:03,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7687 to 6721. [2022-03-01 15:29:03,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6721 states, 6720 states have (on average 2.6961309523809525) internal successors, (18118), 6720 states have internal predecessors, (18118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:03,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6721 states to 6721 states and 18118 transitions. [2022-03-01 15:29:03,335 INFO L78 Accepts]: Start accepts. Automaton has 6721 states and 18118 transitions. Word has length 91 [2022-03-01 15:29:03,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:03,335 INFO L470 AbstractCegarLoop]: Abstraction has 6721 states and 18118 transitions. [2022-03-01 15:29:03,335 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:03,335 INFO L276 IsEmpty]: Start isEmpty. Operand 6721 states and 18118 transitions. [2022-03-01 15:29:03,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:03,343 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:03,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:03,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-03-01 15:29:03,343 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:03,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:03,343 INFO L85 PathProgramCache]: Analyzing trace with hash 624261170, now seen corresponding path program 15 times [2022-03-01 15:29:03,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:03,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759913743] [2022-03-01 15:29:03,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:03,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:03,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:03,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:03,415 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:03,415 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759913743] [2022-03-01 15:29:03,415 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759913743] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:03,415 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:03,415 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:03,415 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341449252] [2022-03-01 15:29:03,415 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:03,415 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:03,416 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:03,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:03,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:03,416 INFO L87 Difference]: Start difference. First operand 6721 states and 18118 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:03,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:03,686 INFO L93 Difference]: Finished difference Result 8024 states and 21539 transitions. [2022-03-01 15:29:03,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-01 15:29:03,686 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:03,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:03,698 INFO L225 Difference]: With dead ends: 8024 [2022-03-01 15:29:03,698 INFO L226 Difference]: Without dead ends: 7739 [2022-03-01 15:29:03,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=196, Invalid=616, Unknown=0, NotChecked=0, Total=812 [2022-03-01 15:29:03,699 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 155 mSDsluCounter, 1794 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 1999 SdHoareTripleChecker+Invalid, 253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:03,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 1999 Invalid, 253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:03,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7739 states. [2022-03-01 15:29:03,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7739 to 6729. [2022-03-01 15:29:03,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6956004756242566) internal successors, (18136), 6728 states have internal predecessors, (18136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:03,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18136 transitions. [2022-03-01 15:29:03,788 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18136 transitions. Word has length 91 [2022-03-01 15:29:03,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:03,788 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18136 transitions. [2022-03-01 15:29:03,788 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:03,789 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18136 transitions. [2022-03-01 15:29:03,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:03,796 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:03,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:03,797 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-03-01 15:29:03,797 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:03,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:03,797 INFO L85 PathProgramCache]: Analyzing trace with hash 1868223264, now seen corresponding path program 16 times [2022-03-01 15:29:03,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:03,797 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494383564] [2022-03-01 15:29:03,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:03,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:03,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:03,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:03,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:03,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494383564] [2022-03-01 15:29:03,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494383564] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:03,880 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:03,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:03,880 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772699110] [2022-03-01 15:29:03,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:03,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:03,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:03,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:03,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:03,881 INFO L87 Difference]: Start difference. First operand 6729 states and 18136 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:04,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:04,112 INFO L93 Difference]: Finished difference Result 7972 states and 21404 transitions. [2022-03-01 15:29:04,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:29:04,113 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:04,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:04,124 INFO L225 Difference]: With dead ends: 7972 [2022-03-01 15:29:04,124 INFO L226 Difference]: Without dead ends: 7715 [2022-03-01 15:29:04,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 97 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=146, Invalid=454, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:29:04,124 INFO L933 BasicCegarLoop]: 235 mSDtfsCounter, 130 mSDsluCounter, 1692 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 1893 SdHoareTripleChecker+Invalid, 244 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:04,125 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 1893 Invalid, 244 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:04,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7715 states. [2022-03-01 15:29:04,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7715 to 6733. [2022-03-01 15:29:04,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6950386215092097) internal successors, (18143), 6732 states have internal predecessors, (18143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:04,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18143 transitions. [2022-03-01 15:29:04,247 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18143 transitions. Word has length 91 [2022-03-01 15:29:04,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:04,247 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18143 transitions. [2022-03-01 15:29:04,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:04,248 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18143 transitions. [2022-03-01 15:29:04,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:04,256 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:04,256 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:04,256 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-03-01 15:29:04,256 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:04,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:04,257 INFO L85 PathProgramCache]: Analyzing trace with hash -933922598, now seen corresponding path program 17 times [2022-03-01 15:29:04,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:04,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928650026] [2022-03-01 15:29:04,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:04,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:04,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:04,339 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:04,339 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:04,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928650026] [2022-03-01 15:29:04,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928650026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:04,339 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:04,339 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:04,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687957826] [2022-03-01 15:29:04,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:04,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:04,340 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:04,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:04,340 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:04,340 INFO L87 Difference]: Start difference. First operand 6733 states and 18143 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:04,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:04,621 INFO L93 Difference]: Finished difference Result 7943 states and 21322 transitions. [2022-03-01 15:29:04,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 15:29:04,621 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:04,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:04,635 INFO L225 Difference]: With dead ends: 7943 [2022-03-01 15:29:04,635 INFO L226 Difference]: Without dead ends: 7675 [2022-03-01 15:29:04,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=500, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:29:04,636 INFO L933 BasicCegarLoop]: 237 mSDtfsCounter, 125 mSDsluCounter, 1772 mSDsCounter, 0 mSdLazyCounter, 258 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 1968 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 258 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:04,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 1968 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 258 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:04,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2022-03-01 15:29:04,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 6725. [2022-03-01 15:29:04,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6725 states, 6724 states have (on average 2.6955681142177275) internal successors, (18125), 6724 states have internal predecessors, (18125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:04,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6725 states to 6725 states and 18125 transitions. [2022-03-01 15:29:04,769 INFO L78 Accepts]: Start accepts. Automaton has 6725 states and 18125 transitions. Word has length 91 [2022-03-01 15:29:04,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:04,769 INFO L470 AbstractCegarLoop]: Abstraction has 6725 states and 18125 transitions. [2022-03-01 15:29:04,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:04,769 INFO L276 IsEmpty]: Start isEmpty. Operand 6725 states and 18125 transitions. [2022-03-01 15:29:04,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:04,777 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:04,778 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:04,778 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-03-01 15:29:04,778 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:04,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:04,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1926241168, now seen corresponding path program 18 times [2022-03-01 15:29:04,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:04,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564836113] [2022-03-01 15:29:04,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:04,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:04,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:04,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:04,868 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:04,868 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564836113] [2022-03-01 15:29:04,868 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564836113] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:04,869 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:04,869 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:04,869 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565358930] [2022-03-01 15:29:04,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:04,869 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:04,869 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:04,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:04,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:04,869 INFO L87 Difference]: Start difference. First operand 6725 states and 18125 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:05,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:05,183 INFO L93 Difference]: Finished difference Result 8011 states and 21488 transitions. [2022-03-01 15:29:05,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 15:29:05,183 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:05,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:05,196 INFO L225 Difference]: With dead ends: 8011 [2022-03-01 15:29:05,196 INFO L226 Difference]: Without dead ends: 7720 [2022-03-01 15:29:05,196 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=217, Invalid=653, Unknown=0, NotChecked=0, Total=870 [2022-03-01 15:29:05,196 INFO L933 BasicCegarLoop]: 242 mSDtfsCounter, 177 mSDsluCounter, 1968 mSDsCounter, 0 mSdLazyCounter, 277 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 2157 SdHoareTripleChecker+Invalid, 277 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:05,197 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [177 Valid, 2157 Invalid, 277 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 277 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:05,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7720 states. [2022-03-01 15:29:05,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7720 to 6729. [2022-03-01 15:29:05,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6729 states, 6728 states have (on average 2.6950059453032105) internal successors, (18132), 6728 states have internal predecessors, (18132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:05,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6729 states to 6729 states and 18132 transitions. [2022-03-01 15:29:05,293 INFO L78 Accepts]: Start accepts. Automaton has 6729 states and 18132 transitions. Word has length 91 [2022-03-01 15:29:05,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:05,293 INFO L470 AbstractCegarLoop]: Abstraction has 6729 states and 18132 transitions. [2022-03-01 15:29:05,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:05,294 INFO L276 IsEmpty]: Start isEmpty. Operand 6729 states and 18132 transitions. [2022-03-01 15:29:05,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:05,302 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:05,302 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:05,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-03-01 15:29:05,302 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:05,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:05,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1950544474, now seen corresponding path program 19 times [2022-03-01 15:29:05,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:05,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507043956] [2022-03-01 15:29:05,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:05,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:05,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:05,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:05,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:05,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507043956] [2022-03-01 15:29:05,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507043956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:05,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:05,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:05,393 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759901052] [2022-03-01 15:29:05,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:05,394 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:05,394 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:05,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:05,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:05,394 INFO L87 Difference]: Start difference. First operand 6729 states and 18132 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:05,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:05,617 INFO L93 Difference]: Finished difference Result 7932 states and 21290 transitions. [2022-03-01 15:29:05,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 15:29:05,618 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:05,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:05,630 INFO L225 Difference]: With dead ends: 7932 [2022-03-01 15:29:05,630 INFO L226 Difference]: Without dead ends: 7675 [2022-03-01 15:29:05,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=137, Invalid=415, Unknown=0, NotChecked=0, Total=552 [2022-03-01 15:29:05,631 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 132 mSDsluCounter, 1737 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 1934 SdHoareTripleChecker+Invalid, 234 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:05,631 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 1934 Invalid, 234 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:05,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7675 states. [2022-03-01 15:29:05,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7675 to 6733. [2022-03-01 15:29:05,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6733 states, 6732 states have (on average 2.6944444444444446) internal successors, (18139), 6732 states have internal predecessors, (18139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:05,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6733 states to 6733 states and 18139 transitions. [2022-03-01 15:29:05,726 INFO L78 Accepts]: Start accepts. Automaton has 6733 states and 18139 transitions. Word has length 91 [2022-03-01 15:29:05,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:05,726 INFO L470 AbstractCegarLoop]: Abstraction has 6733 states and 18139 transitions. [2022-03-01 15:29:05,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:05,726 INFO L276 IsEmpty]: Start isEmpty. Operand 6733 states and 18139 transitions. [2022-03-01 15:29:05,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:05,734 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:05,735 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:05,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-03-01 15:29:05,735 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:05,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:05,735 INFO L85 PathProgramCache]: Analyzing trace with hash -851601388, now seen corresponding path program 20 times [2022-03-01 15:29:05,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:05,735 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679995657] [2022-03-01 15:29:05,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:05,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:05,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:05,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:05,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:05,824 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679995657] [2022-03-01 15:29:05,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679995657] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:05,824 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:05,824 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:05,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241931004] [2022-03-01 15:29:05,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:05,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:05,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:05,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:05,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:05,825 INFO L87 Difference]: Start difference. First operand 6733 states and 18139 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:06,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:06,055 INFO L93 Difference]: Finished difference Result 7879 states and 21142 transitions. [2022-03-01 15:29:06,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:29:06,055 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:06,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:06,067 INFO L225 Difference]: With dead ends: 7879 [2022-03-01 15:29:06,067 INFO L226 Difference]: Without dead ends: 7599 [2022-03-01 15:29:06,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:29:06,068 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 133 mSDsluCounter, 1334 mSDsCounter, 0 mSdLazyCounter, 188 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 1534 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 188 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:06,068 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 1534 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 188 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:06,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7599 states. [2022-03-01 15:29:06,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7599 to 6709. [2022-03-01 15:29:06,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6709 states, 6708 states have (on average 2.6960345855694694) internal successors, (18085), 6708 states have internal predecessors, (18085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:06,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6709 states to 6709 states and 18085 transitions. [2022-03-01 15:29:06,152 INFO L78 Accepts]: Start accepts. Automaton has 6709 states and 18085 transitions. Word has length 91 [2022-03-01 15:29:06,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:06,152 INFO L470 AbstractCegarLoop]: Abstraction has 6709 states and 18085 transitions. [2022-03-01 15:29:06,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:06,153 INFO L276 IsEmpty]: Start isEmpty. Operand 6709 states and 18085 transitions. [2022-03-01 15:29:06,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:06,160 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:06,160 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:06,160 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-03-01 15:29:06,160 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:06,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:06,160 INFO L85 PathProgramCache]: Analyzing trace with hash 766843090, now seen corresponding path program 21 times [2022-03-01 15:29:06,161 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:06,161 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85161839] [2022-03-01 15:29:06,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:06,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:06,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:06,238 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:06,238 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85161839] [2022-03-01 15:29:06,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85161839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:06,238 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:06,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:06,238 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127950077] [2022-03-01 15:29:06,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:06,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:06,239 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:06,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:06,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:06,239 INFO L87 Difference]: Start difference. First operand 6709 states and 18085 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:06,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:06,550 INFO L93 Difference]: Finished difference Result 8294 states and 22104 transitions. [2022-03-01 15:29:06,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 15:29:06,550 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:06,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:06,563 INFO L225 Difference]: With dead ends: 8294 [2022-03-01 15:29:06,563 INFO L226 Difference]: Without dead ends: 7953 [2022-03-01 15:29:06,563 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 237 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=283, Invalid=839, Unknown=0, NotChecked=0, Total=1122 [2022-03-01 15:29:06,563 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 412 mSDsluCounter, 1288 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1561 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:06,564 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [412 Valid, 1561 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:06,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7953 states. [2022-03-01 15:29:06,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7953 to 6633. [2022-03-01 15:29:06,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.692400482509047) internal successors, (17856), 6632 states have internal predecessors, (17856), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:06,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17856 transitions. [2022-03-01 15:29:06,665 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17856 transitions. Word has length 91 [2022-03-01 15:29:06,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:06,665 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17856 transitions. [2022-03-01 15:29:06,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:06,665 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17856 transitions. [2022-03-01 15:29:06,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:06,673 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:06,673 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:06,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-03-01 15:29:06,673 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:06,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:06,673 INFO L85 PathProgramCache]: Analyzing trace with hash 519941212, now seen corresponding path program 22 times [2022-03-01 15:29:06,673 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:06,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858575478] [2022-03-01 15:29:06,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:06,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:06,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:06,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:06,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858575478] [2022-03-01 15:29:06,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858575478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:06,751 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:06,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:06,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963711744] [2022-03-01 15:29:06,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:06,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:06,751 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:06,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:06,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:06,751 INFO L87 Difference]: Start difference. First operand 6633 states and 17856 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:07,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:07,058 INFO L93 Difference]: Finished difference Result 7674 states and 20566 transitions. [2022-03-01 15:29:07,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:29:07,058 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:07,058 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:07,068 INFO L225 Difference]: With dead ends: 7674 [2022-03-01 15:29:07,068 INFO L226 Difference]: Without dead ends: 7361 [2022-03-01 15:29:07,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 236 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=244, Invalid=812, Unknown=0, NotChecked=0, Total=1056 [2022-03-01 15:29:07,069 INFO L933 BasicCegarLoop]: 273 mSDtfsCounter, 233 mSDsluCounter, 1709 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 1940 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:07,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [233 Valid, 1940 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:07,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7361 states. [2022-03-01 15:29:07,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7361 to 6637. [2022-03-01 15:29:07,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6637 states, 6636 states have (on average 2.6918324291742013) internal successors, (17863), 6636 states have internal predecessors, (17863), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:07,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6637 states to 6637 states and 17863 transitions. [2022-03-01 15:29:07,148 INFO L78 Accepts]: Start accepts. Automaton has 6637 states and 17863 transitions. Word has length 91 [2022-03-01 15:29:07,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:07,148 INFO L470 AbstractCegarLoop]: Abstraction has 6637 states and 17863 transitions. [2022-03-01 15:29:07,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:07,149 INFO L276 IsEmpty]: Start isEmpty. Operand 6637 states and 17863 transitions. [2022-03-01 15:29:07,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:07,156 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:07,156 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:07,156 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-03-01 15:29:07,157 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:07,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:07,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1415928980, now seen corresponding path program 23 times [2022-03-01 15:29:07,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:07,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426276472] [2022-03-01 15:29:07,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:07,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:07,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:07,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:07,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:07,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426276472] [2022-03-01 15:29:07,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426276472] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:07,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:07,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:07,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768135165] [2022-03-01 15:29:07,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:07,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:07,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:07,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:07,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:07,249 INFO L87 Difference]: Start difference. First operand 6637 states and 17863 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:07,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:07,515 INFO L93 Difference]: Finished difference Result 7594 states and 20354 transitions. [2022-03-01 15:29:07,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-01 15:29:07,516 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:07,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:07,528 INFO L225 Difference]: With dead ends: 7594 [2022-03-01 15:29:07,528 INFO L226 Difference]: Without dead ends: 7309 [2022-03-01 15:29:07,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=186, Invalid=684, Unknown=0, NotChecked=0, Total=870 [2022-03-01 15:29:07,529 INFO L933 BasicCegarLoop]: 266 mSDtfsCounter, 194 mSDsluCounter, 1956 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 2174 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:07,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [194 Valid, 2174 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:07,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7309 states. [2022-03-01 15:29:07,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7309 to 6641. [2022-03-01 15:29:07,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6641 states, 6640 states have (on average 2.691265060240964) internal successors, (17870), 6640 states have internal predecessors, (17870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:07,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6641 states to 6641 states and 17870 transitions. [2022-03-01 15:29:07,635 INFO L78 Accepts]: Start accepts. Automaton has 6641 states and 17870 transitions. Word has length 91 [2022-03-01 15:29:07,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:07,635 INFO L470 AbstractCegarLoop]: Abstraction has 6641 states and 17870 transitions. [2022-03-01 15:29:07,636 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:07,636 INFO L276 IsEmpty]: Start isEmpty. Operand 6641 states and 17870 transitions. [2022-03-01 15:29:07,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:07,644 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:07,644 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:07,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-03-01 15:29:07,644 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:07,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:07,645 INFO L85 PathProgramCache]: Analyzing trace with hash -171966886, now seen corresponding path program 24 times [2022-03-01 15:29:07,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:07,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498730632] [2022-03-01 15:29:07,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:07,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:07,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:07,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:07,719 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:07,719 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498730632] [2022-03-01 15:29:07,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498730632] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:07,719 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:07,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:07,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630037004] [2022-03-01 15:29:07,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:07,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:07,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:07,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:07,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:07,720 INFO L87 Difference]: Start difference. First operand 6641 states and 17870 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:07,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:07,917 INFO L93 Difference]: Finished difference Result 7514 states and 20142 transitions. [2022-03-01 15:29:07,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:29:07,917 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:07,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:07,930 INFO L225 Difference]: With dead ends: 7514 [2022-03-01 15:29:07,930 INFO L226 Difference]: Without dead ends: 7257 [2022-03-01 15:29:07,931 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=141, Invalid=459, Unknown=0, NotChecked=0, Total=600 [2022-03-01 15:29:07,931 INFO L933 BasicCegarLoop]: 259 mSDtfsCounter, 159 mSDsluCounter, 1260 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 160 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:07,931 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 1485 Invalid, 160 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:07,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7257 states. [2022-03-01 15:29:08,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7257 to 6645. [2022-03-01 15:29:08,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6645 states, 6644 states have (on average 2.6906983744732087) internal successors, (17877), 6644 states have internal predecessors, (17877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:08,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6645 states to 6645 states and 17877 transitions. [2022-03-01 15:29:08,045 INFO L78 Accepts]: Start accepts. Automaton has 6645 states and 17877 transitions. Word has length 91 [2022-03-01 15:29:08,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:08,046 INFO L470 AbstractCegarLoop]: Abstraction has 6645 states and 17877 transitions. [2022-03-01 15:29:08,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:08,046 INFO L276 IsEmpty]: Start isEmpty. Operand 6645 states and 17877 transitions. [2022-03-01 15:29:08,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:08,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:08,056 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:08,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-03-01 15:29:08,056 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:08,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:08,057 INFO L85 PathProgramCache]: Analyzing trace with hash 1320854548, now seen corresponding path program 25 times [2022-03-01 15:29:08,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:08,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463556180] [2022-03-01 15:29:08,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:08,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:08,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:08,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:08,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:08,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463556180] [2022-03-01 15:29:08,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463556180] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:08,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:08,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:08,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248501950] [2022-03-01 15:29:08,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:08,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:08,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:08,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:08,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:08,129 INFO L87 Difference]: Start difference. First operand 6645 states and 17877 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:08,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:08,362 INFO L93 Difference]: Finished difference Result 7469 states and 20016 transitions. [2022-03-01 15:29:08,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 15:29:08,362 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:08,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:08,374 INFO L225 Difference]: With dead ends: 7469 [2022-03-01 15:29:08,374 INFO L226 Difference]: Without dead ends: 7193 [2022-03-01 15:29:08,375 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=167, Invalid=483, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:29:08,377 INFO L933 BasicCegarLoop]: 253 mSDtfsCounter, 152 mSDsluCounter, 2064 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 2267 SdHoareTripleChecker+Invalid, 230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:08,377 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [152 Valid, 2267 Invalid, 230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:08,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7193 states. [2022-03-01 15:29:08,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7193 to 6617. [2022-03-01 15:29:08,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6617 states, 6616 states have (on average 2.6916565900846434) internal successors, (17808), 6616 states have internal predecessors, (17808), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:08,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6617 states to 6617 states and 17808 transitions. [2022-03-01 15:29:08,483 INFO L78 Accepts]: Start accepts. Automaton has 6617 states and 17808 transitions. Word has length 91 [2022-03-01 15:29:08,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:08,483 INFO L470 AbstractCegarLoop]: Abstraction has 6617 states and 17808 transitions. [2022-03-01 15:29:08,483 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:08,484 INFO L276 IsEmpty]: Start isEmpty. Operand 6617 states and 17808 transitions. [2022-03-01 15:29:08,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:08,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:08,493 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:08,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2022-03-01 15:29:08,493 INFO L402 AbstractCegarLoop]: === Iteration 67 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:08,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:08,493 INFO L85 PathProgramCache]: Analyzing trace with hash 85978932, now seen corresponding path program 26 times [2022-03-01 15:29:08,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:08,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737496553] [2022-03-01 15:29:08,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:08,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:08,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:08,576 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:08,576 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:08,576 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737496553] [2022-03-01 15:29:08,577 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737496553] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:08,577 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:08,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:08,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879565545] [2022-03-01 15:29:08,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:08,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:08,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:08,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:08,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:08,577 INFO L87 Difference]: Start difference. First operand 6617 states and 17808 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:08,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:08,901 INFO L93 Difference]: Finished difference Result 7694 states and 20617 transitions. [2022-03-01 15:29:08,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-01 15:29:08,902 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:08,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:08,912 INFO L225 Difference]: With dead ends: 7694 [2022-03-01 15:29:08,912 INFO L226 Difference]: Without dead ends: 7381 [2022-03-01 15:29:08,913 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2022-03-01 15:29:08,913 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 202 mSDsluCounter, 1566 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 1768 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:08,913 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 1768 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:08,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-03-01 15:29:08,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 6625. [2022-03-01 15:29:08,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6625 states, 6624 states have (on average 2.691123188405797) internal successors, (17826), 6624 states have internal predecessors, (17826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:09,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6625 states to 6625 states and 17826 transitions. [2022-03-01 15:29:09,005 INFO L78 Accepts]: Start accepts. Automaton has 6625 states and 17826 transitions. Word has length 91 [2022-03-01 15:29:09,005 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:09,005 INFO L470 AbstractCegarLoop]: Abstraction has 6625 states and 17826 transitions. [2022-03-01 15:29:09,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:09,005 INFO L276 IsEmpty]: Start isEmpty. Operand 6625 states and 17826 transitions. [2022-03-01 15:29:09,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:09,014 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:09,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:09,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2022-03-01 15:29:09,014 INFO L402 AbstractCegarLoop]: === Iteration 68 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:09,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:09,014 INFO L85 PathProgramCache]: Analyzing trace with hash -1849891260, now seen corresponding path program 27 times [2022-03-01 15:29:09,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:09,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848702988] [2022-03-01 15:29:09,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:09,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:09,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:09,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:09,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:09,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848702988] [2022-03-01 15:29:09,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848702988] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:09,089 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:09,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:09,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509493486] [2022-03-01 15:29:09,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:09,090 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:09,090 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:09,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:09,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:09,090 INFO L87 Difference]: Start difference. First operand 6625 states and 17826 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:09,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:09,352 INFO L93 Difference]: Finished difference Result 7666 states and 20548 transitions. [2022-03-01 15:29:09,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-01 15:29:09,352 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:09,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:09,363 INFO L225 Difference]: With dead ends: 7666 [2022-03-01 15:29:09,363 INFO L226 Difference]: Without dead ends: 7381 [2022-03-01 15:29:09,363 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=179, Invalid=633, Unknown=0, NotChecked=0, Total=812 [2022-03-01 15:29:09,363 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 169 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 2095 SdHoareTripleChecker+Invalid, 264 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:09,364 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [169 Valid, 2095 Invalid, 264 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:09,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7381 states. [2022-03-01 15:29:09,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7381 to 6629. [2022-03-01 15:29:09,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.69055522027761) internal successors, (17833), 6628 states have internal predecessors, (17833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:09,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17833 transitions. [2022-03-01 15:29:09,455 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17833 transitions. Word has length 91 [2022-03-01 15:29:09,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:09,455 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17833 transitions. [2022-03-01 15:29:09,455 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:09,456 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17833 transitions. [2022-03-01 15:29:09,463 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:09,464 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:09,464 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:09,464 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2022-03-01 15:29:09,464 INFO L402 AbstractCegarLoop]: === Iteration 69 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:09,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:09,464 INFO L85 PathProgramCache]: Analyzing trace with hash -605929166, now seen corresponding path program 28 times [2022-03-01 15:29:09,464 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:09,464 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976714230] [2022-03-01 15:29:09,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:09,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:09,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:09,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:09,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:09,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976714230] [2022-03-01 15:29:09,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976714230] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:09,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:09,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:09,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980542268] [2022-03-01 15:29:09,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:09,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:09,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:09,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:09,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:09,563 INFO L87 Difference]: Start difference. First operand 6629 states and 17833 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:09,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:09,812 INFO L93 Difference]: Finished difference Result 7586 states and 20336 transitions. [2022-03-01 15:29:09,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:29:09,813 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:09,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:09,826 INFO L225 Difference]: With dead ends: 7586 [2022-03-01 15:29:09,826 INFO L226 Difference]: Without dead ends: 7329 [2022-03-01 15:29:09,826 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=130, Invalid=422, Unknown=0, NotChecked=0, Total=552 [2022-03-01 15:29:09,828 INFO L933 BasicCegarLoop]: 228 mSDtfsCounter, 128 mSDsluCounter, 1714 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 1902 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:09,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 1902 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:09,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-03-01 15:29:09,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 6633. [2022-03-01 15:29:09,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.689987937273824) internal successors, (17840), 6632 states have internal predecessors, (17840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:09,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17840 transitions. [2022-03-01 15:29:09,934 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17840 transitions. Word has length 91 [2022-03-01 15:29:09,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:09,934 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17840 transitions. [2022-03-01 15:29:09,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:09,934 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17840 transitions. [2022-03-01 15:29:09,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:09,942 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:09,942 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:09,942 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2022-03-01 15:29:09,942 INFO L402 AbstractCegarLoop]: === Iteration 70 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:09,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:09,942 INFO L85 PathProgramCache]: Analyzing trace with hash 886892268, now seen corresponding path program 29 times [2022-03-01 15:29:09,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:09,943 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370167162] [2022-03-01 15:29:09,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:09,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:10,037 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:10,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:10,038 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370167162] [2022-03-01 15:29:10,038 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370167162] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:10,038 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:10,038 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:10,038 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931860288] [2022-03-01 15:29:10,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:10,038 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:10,038 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:10,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:10,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:10,039 INFO L87 Difference]: Start difference. First operand 6633 states and 17840 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:10,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:10,258 INFO L93 Difference]: Finished difference Result 7549 states and 20232 transitions. [2022-03-01 15:29:10,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:29:10,259 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:10,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:10,270 INFO L225 Difference]: With dead ends: 7549 [2022-03-01 15:29:10,270 INFO L226 Difference]: Without dead ends: 7277 [2022-03-01 15:29:10,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 100 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:29:10,270 INFO L933 BasicCegarLoop]: 227 mSDtfsCounter, 127 mSDsluCounter, 1723 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 1903 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:10,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [127 Valid, 1903 Invalid, 246 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:10,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7277 states. [2022-03-01 15:29:10,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7277 to 6621. [2022-03-01 15:29:10,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6621 states, 6620 states have (on average 2.6910876132930515) internal successors, (17815), 6620 states have internal predecessors, (17815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:10,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6621 states to 6621 states and 17815 transitions. [2022-03-01 15:29:10,356 INFO L78 Accepts]: Start accepts. Automaton has 6621 states and 17815 transitions. Word has length 91 [2022-03-01 15:29:10,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:10,356 INFO L470 AbstractCegarLoop]: Abstraction has 6621 states and 17815 transitions. [2022-03-01 15:29:10,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 6621 states and 17815 transitions. [2022-03-01 15:29:10,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:10,364 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:10,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:10,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2022-03-01 15:29:10,364 INFO L402 AbstractCegarLoop]: === Iteration 71 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:10,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:10,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1993006, now seen corresponding path program 30 times [2022-03-01 15:29:10,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:10,365 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201308828] [2022-03-01 15:29:10,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:10,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:10,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:10,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:10,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:10,451 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201308828] [2022-03-01 15:29:10,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201308828] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:10,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:10,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:10,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982616325] [2022-03-01 15:29:10,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:10,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:10,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:10,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:10,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:10,452 INFO L87 Difference]: Start difference. First operand 6621 states and 17815 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:10,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:10,698 INFO L93 Difference]: Finished difference Result 7614 states and 20405 transitions. [2022-03-01 15:29:10,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-01 15:29:10,698 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:10,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:10,710 INFO L225 Difference]: With dead ends: 7614 [2022-03-01 15:29:10,710 INFO L226 Difference]: Without dead ends: 7329 [2022-03-01 15:29:10,710 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=177, Invalid=579, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:29:10,711 INFO L933 BasicCegarLoop]: 231 mSDtfsCounter, 163 mSDsluCounter, 1893 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 2081 SdHoareTripleChecker+Invalid, 259 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:10,711 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 2081 Invalid, 259 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:10,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-03-01 15:29:10,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 6629. [2022-03-01 15:29:10,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.69055522027761) internal successors, (17833), 6628 states have internal predecessors, (17833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:10,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17833 transitions. [2022-03-01 15:29:10,798 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17833 transitions. Word has length 91 [2022-03-01 15:29:10,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:10,798 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17833 transitions. [2022-03-01 15:29:10,798 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:10,798 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17833 transitions. [2022-03-01 15:29:10,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:10,806 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:10,806 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:10,806 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2022-03-01 15:29:10,806 INFO L402 AbstractCegarLoop]: === Iteration 72 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:10,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:10,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1241969088, now seen corresponding path program 31 times [2022-03-01 15:29:10,806 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:10,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466861527] [2022-03-01 15:29:10,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:10,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:10,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:10,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:10,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:10,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466861527] [2022-03-01 15:29:10,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466861527] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:10,884 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:10,884 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:10,884 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057240374] [2022-03-01 15:29:10,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:10,884 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:10,884 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:10,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:10,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:10,885 INFO L87 Difference]: Start difference. First operand 6629 states and 17833 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:11,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:11,103 INFO L93 Difference]: Finished difference Result 7562 states and 20270 transitions. [2022-03-01 15:29:11,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-03-01 15:29:11,103 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:11,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:11,113 INFO L225 Difference]: With dead ends: 7562 [2022-03-01 15:29:11,113 INFO L226 Difference]: Without dead ends: 7305 [2022-03-01 15:29:11,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=416, Unknown=0, NotChecked=0, Total=552 [2022-03-01 15:29:11,114 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 138 mSDsluCounter, 1157 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:11,114 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [138 Valid, 1351 Invalid, 173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:11,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7305 states. [2022-03-01 15:29:11,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7305 to 6633. [2022-03-01 15:29:11,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.689987937273824) internal successors, (17840), 6632 states have internal predecessors, (17840), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:11,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17840 transitions. [2022-03-01 15:29:11,196 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17840 transitions. Word has length 91 [2022-03-01 15:29:11,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:11,196 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17840 transitions. [2022-03-01 15:29:11,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:11,196 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17840 transitions. [2022-03-01 15:29:11,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:11,203 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:11,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:11,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2022-03-01 15:29:11,204 INFO L402 AbstractCegarLoop]: === Iteration 73 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:11,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:11,204 INFO L85 PathProgramCache]: Analyzing trace with hash -1560176774, now seen corresponding path program 32 times [2022-03-01 15:29:11,204 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:11,204 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134330984] [2022-03-01 15:29:11,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:11,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:11,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:11,297 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:11,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:11,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134330984] [2022-03-01 15:29:11,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134330984] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:11,297 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:11,298 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:11,298 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819772997] [2022-03-01 15:29:11,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:11,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:11,298 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:11,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:11,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:11,298 INFO L87 Difference]: Start difference. First operand 6633 states and 17840 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:11,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:11,537 INFO L93 Difference]: Finished difference Result 7533 states and 20188 transitions. [2022-03-01 15:29:11,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-01 15:29:11,537 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:11,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:11,548 INFO L225 Difference]: With dead ends: 7533 [2022-03-01 15:29:11,548 INFO L226 Difference]: Without dead ends: 7265 [2022-03-01 15:29:11,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2022-03-01 15:29:11,548 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 124 mSDsluCounter, 1325 mSDsCounter, 0 mSdLazyCounter, 195 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 1514 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:11,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [124 Valid, 1514 Invalid, 195 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 195 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:11,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2022-03-01 15:29:11,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 6625. [2022-03-01 15:29:11,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6625 states, 6624 states have (on average 2.6905193236714977) internal successors, (17822), 6624 states have internal predecessors, (17822), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:11,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6625 states to 6625 states and 17822 transitions. [2022-03-01 15:29:11,638 INFO L78 Accepts]: Start accepts. Automaton has 6625 states and 17822 transitions. Word has length 91 [2022-03-01 15:29:11,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:11,638 INFO L470 AbstractCegarLoop]: Abstraction has 6625 states and 17822 transitions. [2022-03-01 15:29:11,638 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:11,638 INFO L276 IsEmpty]: Start isEmpty. Operand 6625 states and 17822 transitions. [2022-03-01 15:29:11,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:11,646 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:11,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:11,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2022-03-01 15:29:11,646 INFO L402 AbstractCegarLoop]: === Iteration 74 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:11,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:11,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1742471952, now seen corresponding path program 33 times [2022-03-01 15:29:11,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:11,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140389667] [2022-03-01 15:29:11,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:11,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:11,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:11,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:11,741 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:11,741 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140389667] [2022-03-01 15:29:11,741 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140389667] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:11,741 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:11,742 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:11,742 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792524250] [2022-03-01 15:29:11,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:11,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:11,742 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:11,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:11,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:11,742 INFO L87 Difference]: Start difference. First operand 6625 states and 17822 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:12,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:12,033 INFO L93 Difference]: Finished difference Result 7601 states and 20354 transitions. [2022-03-01 15:29:12,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-01 15:29:12,033 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:12,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:12,044 INFO L225 Difference]: With dead ends: 7601 [2022-03-01 15:29:12,044 INFO L226 Difference]: Without dead ends: 7310 [2022-03-01 15:29:12,044 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=213, Invalid=599, Unknown=0, NotChecked=0, Total=812 [2022-03-01 15:29:12,045 INFO L933 BasicCegarLoop]: 226 mSDtfsCounter, 173 mSDsluCounter, 1661 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 1843 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:12,045 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [173 Valid, 1843 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:12,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7310 states. [2022-03-01 15:29:12,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7310 to 6629. [2022-03-01 15:29:12,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6629 states, 6628 states have (on average 2.68995171997586) internal successors, (17829), 6628 states have internal predecessors, (17829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:12,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6629 states to 6629 states and 17829 transitions. [2022-03-01 15:29:12,135 INFO L78 Accepts]: Start accepts. Automaton has 6629 states and 17829 transitions. Word has length 91 [2022-03-01 15:29:12,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:12,136 INFO L470 AbstractCegarLoop]: Abstraction has 6629 states and 17829 transitions. [2022-03-01 15:29:12,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:12,136 INFO L276 IsEmpty]: Start isEmpty. Operand 6629 states and 17829 transitions. [2022-03-01 15:29:12,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:12,143 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:12,143 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:12,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2022-03-01 15:29:12,144 INFO L402 AbstractCegarLoop]: === Iteration 75 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:12,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:12,144 INFO L85 PathProgramCache]: Analyzing trace with hash 1324290298, now seen corresponding path program 34 times [2022-03-01 15:29:12,144 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:12,144 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420279907] [2022-03-01 15:29:12,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:12,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:12,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:12,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:12,220 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:12,220 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420279907] [2022-03-01 15:29:12,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420279907] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:12,221 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:12,221 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:12,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215363117] [2022-03-01 15:29:12,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:12,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:12,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:12,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:12,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:12,221 INFO L87 Difference]: Start difference. First operand 6629 states and 17829 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:12,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:12,413 INFO L93 Difference]: Finished difference Result 7522 states and 20156 transitions. [2022-03-01 15:29:12,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 15:29:12,414 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:12,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:12,424 INFO L225 Difference]: With dead ends: 7522 [2022-03-01 15:29:12,424 INFO L226 Difference]: Without dead ends: 7265 [2022-03-01 15:29:12,424 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2022-03-01 15:29:12,424 INFO L933 BasicCegarLoop]: 221 mSDtfsCounter, 135 mSDsluCounter, 1537 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1720 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:12,424 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 1720 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:12,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7265 states. [2022-03-01 15:29:12,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7265 to 6633. [2022-03-01 15:29:12,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6633 states, 6632 states have (on average 2.6893848009650183) internal successors, (17836), 6632 states have internal predecessors, (17836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:12,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6633 states to 6633 states and 17836 transitions. [2022-03-01 15:29:12,507 INFO L78 Accepts]: Start accepts. Automaton has 6633 states and 17836 transitions. Word has length 91 [2022-03-01 15:29:12,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:12,507 INFO L470 AbstractCegarLoop]: Abstraction has 6633 states and 17836 transitions. [2022-03-01 15:29:12,507 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:12,507 INFO L276 IsEmpty]: Start isEmpty. Operand 6633 states and 17836 transitions. [2022-03-01 15:29:12,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-01 15:29:12,515 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:12,515 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:12,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2022-03-01 15:29:12,515 INFO L402 AbstractCegarLoop]: === Iteration 76 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:12,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:12,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1477855564, now seen corresponding path program 35 times [2022-03-01 15:29:12,515 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:12,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525102187] [2022-03-01 15:29:12,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:12,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:12,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:12,589 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:12,589 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525102187] [2022-03-01 15:29:12,589 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525102187] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:12,589 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:12,589 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-03-01 15:29:12,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295449894] [2022-03-01 15:29:12,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:12,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-01 15:29:12,590 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:12,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-01 15:29:12,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2022-03-01 15:29:12,590 INFO L87 Difference]: Start difference. First operand 6633 states and 17836 transitions. Second operand has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:12,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:12,805 INFO L93 Difference]: Finished difference Result 7469 states and 20008 transitions. [2022-03-01 15:29:12,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-03-01 15:29:12,806 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2022-03-01 15:29:12,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:12,816 INFO L225 Difference]: With dead ends: 7469 [2022-03-01 15:29:12,816 INFO L226 Difference]: Without dead ends: 7185 [2022-03-01 15:29:12,816 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=582, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:29:12,816 INFO L933 BasicCegarLoop]: 215 mSDtfsCounter, 145 mSDsluCounter, 1501 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 1679 SdHoareTripleChecker+Invalid, 189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:12,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 1679 Invalid, 189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-01 15:29:12,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7185 states. [2022-03-01 15:29:12,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7185 to 6597. [2022-03-01 15:29:12,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6597 states, 6596 states have (on average 2.6908732565191027) internal successors, (17749), 6596 states have internal predecessors, (17749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:12,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6597 states to 6597 states and 17749 transitions. [2022-03-01 15:29:12,900 INFO L78 Accepts]: Start accepts. Automaton has 6597 states and 17749 transitions. Word has length 91 [2022-03-01 15:29:12,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:12,900 INFO L470 AbstractCegarLoop]: Abstraction has 6597 states and 17749 transitions. [2022-03-01 15:29:12,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.272727272727273) internal successors, (91), 11 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:12,900 INFO L276 IsEmpty]: Start isEmpty. Operand 6597 states and 17749 transitions. [2022-03-01 15:29:12,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:12,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:12,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:12,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2022-03-01 15:29:12,908 INFO L402 AbstractCegarLoop]: === Iteration 77 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:12,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:12,908 INFO L85 PathProgramCache]: Analyzing trace with hash -1361468159, now seen corresponding path program 1 times [2022-03-01 15:29:12,908 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:12,908 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555675377] [2022-03-01 15:29:12,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:12,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:12,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:13,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:13,175 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:13,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555675377] [2022-03-01 15:29:13,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555675377] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:13,176 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:13,176 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:13,176 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975399528] [2022-03-01 15:29:13,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:13,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:13,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:13,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:13,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:13,177 INFO L87 Difference]: Start difference. First operand 6597 states and 17749 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:15,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:15,084 INFO L93 Difference]: Finished difference Result 15003 states and 39315 transitions. [2022-03-01 15:29:15,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:29:15,085 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:15,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:15,104 INFO L225 Difference]: With dead ends: 15003 [2022-03-01 15:29:15,104 INFO L226 Difference]: Without dead ends: 12791 [2022-03-01 15:29:15,105 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=721, Invalid=1829, Unknown=0, NotChecked=0, Total=2550 [2022-03-01 15:29:15,105 INFO L933 BasicCegarLoop]: 461 mSDtfsCounter, 1521 mSDsluCounter, 5352 mSDsCounter, 0 mSdLazyCounter, 1043 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1521 SdHoareTripleChecker+Valid, 5644 SdHoareTripleChecker+Invalid, 1060 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:15,105 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1521 Valid, 5644 Invalid, 1060 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1043 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-03-01 15:29:15,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12791 states. [2022-03-01 15:29:15,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12791 to 6528. [2022-03-01 15:29:15,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6528 states, 6527 states have (on average 2.6948061896736633) internal successors, (17589), 6527 states have internal predecessors, (17589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:15,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6528 states to 6528 states and 17589 transitions. [2022-03-01 15:29:15,217 INFO L78 Accepts]: Start accepts. Automaton has 6528 states and 17589 transitions. Word has length 111 [2022-03-01 15:29:15,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:15,217 INFO L470 AbstractCegarLoop]: Abstraction has 6528 states and 17589 transitions. [2022-03-01 15:29:15,217 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:15,217 INFO L276 IsEmpty]: Start isEmpty. Operand 6528 states and 17589 transitions. [2022-03-01 15:29:15,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:15,224 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:15,224 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:15,225 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2022-03-01 15:29:15,225 INFO L402 AbstractCegarLoop]: === Iteration 78 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:15,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:15,225 INFO L85 PathProgramCache]: Analyzing trace with hash 608351549, now seen corresponding path program 2 times [2022-03-01 15:29:15,225 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:15,225 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839596089] [2022-03-01 15:29:15,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:15,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:15,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:15,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:15,455 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:15,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839596089] [2022-03-01 15:29:15,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839596089] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:15,455 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:15,455 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:15,455 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514603200] [2022-03-01 15:29:15,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:15,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:15,456 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:15,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:15,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:15,456 INFO L87 Difference]: Start difference. First operand 6528 states and 17589 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:16,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:16,492 INFO L93 Difference]: Finished difference Result 13797 states and 36387 transitions. [2022-03-01 15:29:16,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:29:16,492 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:16,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:16,511 INFO L225 Difference]: With dead ends: 13797 [2022-03-01 15:29:16,512 INFO L226 Difference]: Without dead ends: 12756 [2022-03-01 15:29:16,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 342 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=594, Invalid=1568, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 15:29:16,512 INFO L933 BasicCegarLoop]: 424 mSDtfsCounter, 930 mSDsluCounter, 5282 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 930 SdHoareTripleChecker+Valid, 5552 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:16,512 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [930 Valid, 5552 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:16,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12756 states. [2022-03-01 15:29:16,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12756 to 6556. [2022-03-01 15:29:16,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6556 states, 6555 states have (on average 2.6938215102974827) internal successors, (17658), 6555 states have internal predecessors, (17658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:16,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6556 states to 6556 states and 17658 transitions. [2022-03-01 15:29:16,625 INFO L78 Accepts]: Start accepts. Automaton has 6556 states and 17658 transitions. Word has length 111 [2022-03-01 15:29:16,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:16,625 INFO L470 AbstractCegarLoop]: Abstraction has 6556 states and 17658 transitions. [2022-03-01 15:29:16,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:16,625 INFO L276 IsEmpty]: Start isEmpty. Operand 6556 states and 17658 transitions. [2022-03-01 15:29:16,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:16,633 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:16,633 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:16,633 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2022-03-01 15:29:16,633 INFO L402 AbstractCegarLoop]: === Iteration 79 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:16,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:16,634 INFO L85 PathProgramCache]: Analyzing trace with hash 322154749, now seen corresponding path program 3 times [2022-03-01 15:29:16,634 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:16,634 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79965133] [2022-03-01 15:29:16,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:16,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:16,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:16,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:16,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79965133] [2022-03-01 15:29:16,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79965133] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:16,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:16,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:16,855 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680879986] [2022-03-01 15:29:16,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:16,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:16,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:16,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:16,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:16,855 INFO L87 Difference]: Start difference. First operand 6556 states and 17658 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:18,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:18,036 INFO L93 Difference]: Finished difference Result 13722 states and 36196 transitions. [2022-03-01 15:29:18,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:29:18,037 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:18,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:18,054 INFO L225 Difference]: With dead ends: 13722 [2022-03-01 15:29:18,054 INFO L226 Difference]: Without dead ends: 12743 [2022-03-01 15:29:18,054 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=578, Invalid=1584, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 15:29:18,054 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 948 mSDsluCounter, 5181 mSDsCounter, 0 mSdLazyCounter, 840 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 5476 SdHoareTripleChecker+Invalid, 854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:18,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 5476 Invalid, 854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 840 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:29:18,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12743 states. [2022-03-01 15:29:18,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12743 to 6580. [2022-03-01 15:29:18,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6580 states, 6579 states have (on average 2.692202462380301) internal successors, (17712), 6579 states have internal predecessors, (17712), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:18,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6580 states to 6580 states and 17712 transitions. [2022-03-01 15:29:18,163 INFO L78 Accepts]: Start accepts. Automaton has 6580 states and 17712 transitions. Word has length 111 [2022-03-01 15:29:18,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:18,163 INFO L470 AbstractCegarLoop]: Abstraction has 6580 states and 17712 transitions. [2022-03-01 15:29:18,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:18,163 INFO L276 IsEmpty]: Start isEmpty. Operand 6580 states and 17712 transitions. [2022-03-01 15:29:18,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:18,170 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:18,171 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:18,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2022-03-01 15:29:18,171 INFO L402 AbstractCegarLoop]: === Iteration 80 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:18,171 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:18,171 INFO L85 PathProgramCache]: Analyzing trace with hash 93373265, now seen corresponding path program 4 times [2022-03-01 15:29:18,171 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:18,171 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504636224] [2022-03-01 15:29:18,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:18,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:18,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:18,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:18,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:18,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504636224] [2022-03-01 15:29:18,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504636224] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:18,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:18,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:18,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26223573] [2022-03-01 15:29:18,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:18,375 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:18,375 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:18,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:18,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:18,376 INFO L87 Difference]: Start difference. First operand 6580 states and 17712 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:19,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:19,435 INFO L93 Difference]: Finished difference Result 13164 states and 34762 transitions. [2022-03-01 15:29:19,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 15:29:19,436 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:19,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:19,455 INFO L225 Difference]: With dead ends: 13164 [2022-03-01 15:29:19,455 INFO L226 Difference]: Without dead ends: 12309 [2022-03-01 15:29:19,456 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 300 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=491, Invalid=1489, Unknown=0, NotChecked=0, Total=1980 [2022-03-01 15:29:19,456 INFO L933 BasicCegarLoop]: 419 mSDtfsCounter, 809 mSDsluCounter, 5156 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 5453 SdHoareTripleChecker+Invalid, 926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:19,456 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [809 Valid, 5453 Invalid, 926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:29:19,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12309 states. [2022-03-01 15:29:19,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12309 to 6692. [2022-03-01 15:29:19,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6692 states, 6691 states have (on average 2.685398296218801) internal successors, (17968), 6691 states have internal predecessors, (17968), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:19,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6692 states to 6692 states and 17968 transitions. [2022-03-01 15:29:19,568 INFO L78 Accepts]: Start accepts. Automaton has 6692 states and 17968 transitions. Word has length 111 [2022-03-01 15:29:19,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:19,568 INFO L470 AbstractCegarLoop]: Abstraction has 6692 states and 17968 transitions. [2022-03-01 15:29:19,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:19,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6692 states and 17968 transitions. [2022-03-01 15:29:19,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:19,575 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:19,576 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:19,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2022-03-01 15:29:19,576 INFO L402 AbstractCegarLoop]: === Iteration 81 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:19,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:19,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2064699473, now seen corresponding path program 5 times [2022-03-01 15:29:19,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:19,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205185844] [2022-03-01 15:29:19,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:19,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:19,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:19,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:19,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:19,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205185844] [2022-03-01 15:29:19,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205185844] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:19,785 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:19,785 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:19,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42047081] [2022-03-01 15:29:19,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:19,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:19,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:19,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:19,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:19,786 INFO L87 Difference]: Start difference. First operand 6692 states and 17968 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:20,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:20,787 INFO L93 Difference]: Finished difference Result 12730 states and 33604 transitions. [2022-03-01 15:29:20,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 15:29:20,788 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:20,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:20,805 INFO L225 Difference]: With dead ends: 12730 [2022-03-01 15:29:20,805 INFO L226 Difference]: Without dead ends: 12278 [2022-03-01 15:29:20,806 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 285 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=452, Invalid=1440, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 15:29:20,806 INFO L933 BasicCegarLoop]: 406 mSDtfsCounter, 758 mSDsluCounter, 4921 mSDsCounter, 0 mSdLazyCounter, 885 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 758 SdHoareTripleChecker+Valid, 5213 SdHoareTripleChecker+Invalid, 906 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:20,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [758 Valid, 5213 Invalid, 906 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 885 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:20,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12278 states. [2022-03-01 15:29:20,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12278 to 6700. [2022-03-01 15:29:20,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6700 states, 6699 states have (on average 2.6848783400507537) internal successors, (17986), 6699 states have internal predecessors, (17986), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:20,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6700 states to 6700 states and 17986 transitions. [2022-03-01 15:29:20,956 INFO L78 Accepts]: Start accepts. Automaton has 6700 states and 17986 transitions. Word has length 111 [2022-03-01 15:29:20,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:20,956 INFO L470 AbstractCegarLoop]: Abstraction has 6700 states and 17986 transitions. [2022-03-01 15:29:20,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:20,957 INFO L276 IsEmpty]: Start isEmpty. Operand 6700 states and 17986 transitions. [2022-03-01 15:29:20,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:20,964 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:20,964 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:20,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2022-03-01 15:29:20,964 INFO L402 AbstractCegarLoop]: === Iteration 82 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:20,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:20,964 INFO L85 PathProgramCache]: Analyzing trace with hash -1641407409, now seen corresponding path program 6 times [2022-03-01 15:29:20,965 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:20,965 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651090405] [2022-03-01 15:29:20,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:20,965 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:21,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:21,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:21,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651090405] [2022-03-01 15:29:21,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651090405] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:21,172 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:21,173 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:21,173 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531682677] [2022-03-01 15:29:21,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:21,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:21,173 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:21,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:21,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:21,173 INFO L87 Difference]: Start difference. First operand 6700 states and 17986 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:22,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:22,107 INFO L93 Difference]: Finished difference Result 12492 states and 33057 transitions. [2022-03-01 15:29:22,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 15:29:22,107 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:22,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:22,125 INFO L225 Difference]: With dead ends: 12492 [2022-03-01 15:29:22,125 INFO L226 Difference]: Without dead ends: 12071 [2022-03-01 15:29:22,125 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=414, Invalid=1392, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 15:29:22,126 INFO L933 BasicCegarLoop]: 402 mSDtfsCounter, 640 mSDsluCounter, 4903 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 640 SdHoareTripleChecker+Valid, 5198 SdHoareTripleChecker+Invalid, 954 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:22,126 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [640 Valid, 5198 Invalid, 954 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:29:22,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12071 states. [2022-03-01 15:29:22,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12071 to 6724. [2022-03-01 15:29:22,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6724 states, 6723 states have (on average 2.6833258961773017) internal successors, (18040), 6723 states have internal predecessors, (18040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:22,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6724 states to 6724 states and 18040 transitions. [2022-03-01 15:29:22,240 INFO L78 Accepts]: Start accepts. Automaton has 6724 states and 18040 transitions. Word has length 111 [2022-03-01 15:29:22,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:22,240 INFO L470 AbstractCegarLoop]: Abstraction has 6724 states and 18040 transitions. [2022-03-01 15:29:22,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:22,240 INFO L276 IsEmpty]: Start isEmpty. Operand 6724 states and 18040 transitions. [2022-03-01 15:29:22,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:22,248 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:22,248 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:22,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2022-03-01 15:29:22,248 INFO L402 AbstractCegarLoop]: === Iteration 83 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:22,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:22,248 INFO L85 PathProgramCache]: Analyzing trace with hash 189918485, now seen corresponding path program 7 times [2022-03-01 15:29:22,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:22,249 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184031928] [2022-03-01 15:29:22,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:22,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:22,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:22,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:22,450 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:22,450 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184031928] [2022-03-01 15:29:22,451 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184031928] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:22,451 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:22,451 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:22,451 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047249953] [2022-03-01 15:29:22,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:22,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:22,451 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:22,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:22,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:22,453 INFO L87 Difference]: Start difference. First operand 6724 states and 18040 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:23,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:23,366 INFO L93 Difference]: Finished difference Result 12337 states and 32650 transitions. [2022-03-01 15:29:23,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 15:29:23,366 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:23,366 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:23,382 INFO L225 Difference]: With dead ends: 12337 [2022-03-01 15:29:23,383 INFO L226 Difference]: Without dead ends: 12009 [2022-03-01 15:29:23,383 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 225 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=374, Invalid=1266, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 15:29:23,383 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 549 mSDsluCounter, 5064 mSDsCounter, 0 mSdLazyCounter, 1002 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 549 SdHoareTripleChecker+Valid, 5357 SdHoareTripleChecker+Invalid, 1019 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1002 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:23,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [549 Valid, 5357 Invalid, 1019 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1002 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:29:23,398 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12009 states. [2022-03-01 15:29:23,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12009 to 6732. [2022-03-01 15:29:23,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6732 states, 6731 states have (on average 2.6828108750557123) internal successors, (18058), 6731 states have internal predecessors, (18058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:23,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6732 states to 6732 states and 18058 transitions. [2022-03-01 15:29:23,495 INFO L78 Accepts]: Start accepts. Automaton has 6732 states and 18058 transitions. Word has length 111 [2022-03-01 15:29:23,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:23,495 INFO L470 AbstractCegarLoop]: Abstraction has 6732 states and 18058 transitions. [2022-03-01 15:29:23,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:23,495 INFO L276 IsEmpty]: Start isEmpty. Operand 6732 states and 18058 transitions. [2022-03-01 15:29:23,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:23,503 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:23,503 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:23,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2022-03-01 15:29:23,503 INFO L402 AbstractCegarLoop]: === Iteration 84 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:23,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:23,503 INFO L85 PathProgramCache]: Analyzing trace with hash 485521321, now seen corresponding path program 8 times [2022-03-01 15:29:23,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:23,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942176571] [2022-03-01 15:29:23,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:23,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:23,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:23,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:23,706 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:23,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942176571] [2022-03-01 15:29:23,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942176571] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:23,707 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:23,707 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:23,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992133565] [2022-03-01 15:29:23,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:23,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:23,707 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:23,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:23,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:23,708 INFO L87 Difference]: Start difference. First operand 6732 states and 18058 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:24,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:24,596 INFO L93 Difference]: Finished difference Result 12244 states and 32409 transitions. [2022-03-01 15:29:24,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-01 15:29:24,596 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:24,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:24,610 INFO L225 Difference]: With dead ends: 12244 [2022-03-01 15:29:24,610 INFO L226 Difference]: Without dead ends: 11947 [2022-03-01 15:29:24,610 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=342, Invalid=1140, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 15:29:24,611 INFO L933 BasicCegarLoop]: 395 mSDtfsCounter, 560 mSDsluCounter, 4787 mSDsCounter, 0 mSdLazyCounter, 987 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 560 SdHoareTripleChecker+Valid, 5091 SdHoareTripleChecker+Invalid, 1009 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 987 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:24,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [560 Valid, 5091 Invalid, 1009 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 987 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:29:24,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11947 states. [2022-03-01 15:29:24,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11947 to 6740. [2022-03-01 15:29:24,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6740 states, 6739 states have (on average 2.6822970767176137) internal successors, (18076), 6739 states have internal predecessors, (18076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:24,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6740 states to 6740 states and 18076 transitions. [2022-03-01 15:29:24,709 INFO L78 Accepts]: Start accepts. Automaton has 6740 states and 18076 transitions. Word has length 111 [2022-03-01 15:29:24,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:24,709 INFO L470 AbstractCegarLoop]: Abstraction has 6740 states and 18076 transitions. [2022-03-01 15:29:24,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:24,709 INFO L276 IsEmpty]: Start isEmpty. Operand 6740 states and 18076 transitions. [2022-03-01 15:29:24,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:24,717 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:24,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:24,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2022-03-01 15:29:24,717 INFO L402 AbstractCegarLoop]: === Iteration 85 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:24,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:24,717 INFO L85 PathProgramCache]: Analyzing trace with hash 67339667, now seen corresponding path program 9 times [2022-03-01 15:29:24,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:24,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648996735] [2022-03-01 15:29:24,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:24,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:24,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:24,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:24,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:24,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648996735] [2022-03-01 15:29:24,927 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648996735] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:24,927 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:24,927 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:24,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018218673] [2022-03-01 15:29:24,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:24,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:24,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:24,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:24,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:24,927 INFO L87 Difference]: Start difference. First operand 6740 states and 18076 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:25,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:25,984 INFO L93 Difference]: Finished difference Result 12089 states and 32010 transitions. [2022-03-01 15:29:25,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-01 15:29:25,985 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:25,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:26,003 INFO L225 Difference]: With dead ends: 12089 [2022-03-01 15:29:26,004 INFO L226 Difference]: Without dead ends: 11798 [2022-03-01 15:29:26,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=404, Invalid=1078, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 15:29:26,004 INFO L933 BasicCegarLoop]: 390 mSDtfsCounter, 527 mSDsluCounter, 4697 mSDsCounter, 0 mSdLazyCounter, 1048 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 527 SdHoareTripleChecker+Valid, 5017 SdHoareTripleChecker+Invalid, 1072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 1048 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:26,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [527 Valid, 5017 Invalid, 1072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 1048 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:29:26,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11798 states. [2022-03-01 15:29:26,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11798 to 6748. [2022-03-01 15:29:26,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6748 states, 6747 states have (on average 2.681191640729213) internal successors, (18090), 6747 states have internal predecessors, (18090), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:26,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6748 states to 6748 states and 18090 transitions. [2022-03-01 15:29:26,118 INFO L78 Accepts]: Start accepts. Automaton has 6748 states and 18090 transitions. Word has length 111 [2022-03-01 15:29:26,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:26,118 INFO L470 AbstractCegarLoop]: Abstraction has 6748 states and 18090 transitions. [2022-03-01 15:29:26,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:26,118 INFO L276 IsEmpty]: Start isEmpty. Operand 6748 states and 18090 transitions. [2022-03-01 15:29:26,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:26,127 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:26,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:26,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2022-03-01 15:29:26,127 INFO L402 AbstractCegarLoop]: === Iteration 86 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:26,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:26,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1560161101, now seen corresponding path program 10 times [2022-03-01 15:29:26,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:26,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594328782] [2022-03-01 15:29:26,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:26,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:26,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:26,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:26,332 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:26,332 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594328782] [2022-03-01 15:29:26,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594328782] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:26,332 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:26,332 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:26,332 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887837832] [2022-03-01 15:29:26,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:26,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:26,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:26,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:26,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:26,333 INFO L87 Difference]: Start difference. First operand 6748 states and 18090 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:27,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:27,141 INFO L93 Difference]: Finished difference Result 12064 states and 31935 transitions. [2022-03-01 15:29:27,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-01 15:29:27,141 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:27,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:27,161 INFO L225 Difference]: With dead ends: 12064 [2022-03-01 15:29:27,162 INFO L226 Difference]: Without dead ends: 11638 [2022-03-01 15:29:27,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=318, Invalid=1014, Unknown=0, NotChecked=0, Total=1332 [2022-03-01 15:29:27,162 INFO L933 BasicCegarLoop]: 392 mSDtfsCounter, 513 mSDsluCounter, 4783 mSDsCounter, 0 mSdLazyCounter, 1019 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 5095 SdHoareTripleChecker+Invalid, 1044 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1019 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:27,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [513 Valid, 5095 Invalid, 1044 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1019 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:29:27,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11638 states. [2022-03-01 15:29:27,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11638 to 6588. [2022-03-01 15:29:27,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6588 states, 6587 states have (on average 2.6910581448307274) internal successors, (17726), 6587 states have internal predecessors, (17726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:27,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6588 states to 6588 states and 17726 transitions. [2022-03-01 15:29:27,279 INFO L78 Accepts]: Start accepts. Automaton has 6588 states and 17726 transitions. Word has length 111 [2022-03-01 15:29:27,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:27,279 INFO L470 AbstractCegarLoop]: Abstraction has 6588 states and 17726 transitions. [2022-03-01 15:29:27,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:27,280 INFO L276 IsEmpty]: Start isEmpty. Operand 6588 states and 17726 transitions. [2022-03-01 15:29:27,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:27,288 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:27,288 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:27,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2022-03-01 15:29:27,288 INFO L402 AbstractCegarLoop]: === Iteration 87 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:27,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:27,289 INFO L85 PathProgramCache]: Analyzing trace with hash -1767486993, now seen corresponding path program 11 times [2022-03-01 15:29:27,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:27,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769321000] [2022-03-01 15:29:27,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:27,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:27,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:27,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:27,504 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:27,504 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769321000] [2022-03-01 15:29:27,504 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769321000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:27,504 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:27,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:27,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068473222] [2022-03-01 15:29:27,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:27,505 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:27,505 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:27,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:27,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:27,505 INFO L87 Difference]: Start difference. First operand 6588 states and 17726 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:28,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:28,678 INFO L93 Difference]: Finished difference Result 12524 states and 33151 transitions. [2022-03-01 15:29:28,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 15:29:28,679 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:28,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:28,697 INFO L225 Difference]: With dead ends: 12524 [2022-03-01 15:29:28,697 INFO L226 Difference]: Without dead ends: 11590 [2022-03-01 15:29:28,698 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 317 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=533, Invalid=1537, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 15:29:28,698 INFO L933 BasicCegarLoop]: 439 mSDtfsCounter, 751 mSDsluCounter, 5460 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 5760 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:28,698 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 5760 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:29:28,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11590 states. [2022-03-01 15:29:28,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11590 to 6540. [2022-03-01 15:29:28,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6540 states, 6539 states have (on average 2.6936840495488608) internal successors, (17614), 6539 states have internal predecessors, (17614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:28,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6540 states to 6540 states and 17614 transitions. [2022-03-01 15:29:28,824 INFO L78 Accepts]: Start accepts. Automaton has 6540 states and 17614 transitions. Word has length 111 [2022-03-01 15:29:28,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:28,824 INFO L470 AbstractCegarLoop]: Abstraction has 6540 states and 17614 transitions. [2022-03-01 15:29:28,825 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:28,825 INFO L276 IsEmpty]: Start isEmpty. Operand 6540 states and 17614 transitions. [2022-03-01 15:29:28,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:28,833 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:28,833 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:28,833 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2022-03-01 15:29:28,833 INFO L402 AbstractCegarLoop]: === Iteration 88 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:28,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:28,833 INFO L85 PathProgramCache]: Analyzing trace with hash 486197149, now seen corresponding path program 12 times [2022-03-01 15:29:28,833 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:28,833 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076755130] [2022-03-01 15:29:28,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:28,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:29,054 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:29,054 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:29,054 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076755130] [2022-03-01 15:29:29,054 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076755130] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:29,054 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:29,054 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:29,054 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066728931] [2022-03-01 15:29:29,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:29,054 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:29,055 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:29,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:29,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=267, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:29,055 INFO L87 Difference]: Start difference. First operand 6540 states and 17614 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:30,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:30,586 INFO L93 Difference]: Finished difference Result 12788 states and 33837 transitions. [2022-03-01 15:29:30,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:29:30,586 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:30,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:30,605 INFO L225 Difference]: With dead ends: 12788 [2022-03-01 15:29:30,605 INFO L226 Difference]: Without dead ends: 11652 [2022-03-01 15:29:30,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=648, Invalid=1704, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 15:29:30,606 INFO L933 BasicCegarLoop]: 455 mSDtfsCounter, 1033 mSDsluCounter, 5431 mSDsCounter, 0 mSdLazyCounter, 1037 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1033 SdHoareTripleChecker+Valid, 5730 SdHoareTripleChecker+Invalid, 1051 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:30,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1033 Valid, 5730 Invalid, 1051 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1037 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-01 15:29:30,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11652 states. [2022-03-01 15:29:30,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11652 to 6504. [2022-03-01 15:29:30,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6504 states, 6503 states have (on average 2.6944487159772414) internal successors, (17522), 6503 states have internal predecessors, (17522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:30,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6504 states to 6504 states and 17522 transitions. [2022-03-01 15:29:30,724 INFO L78 Accepts]: Start accepts. Automaton has 6504 states and 17522 transitions. Word has length 111 [2022-03-01 15:29:30,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:30,724 INFO L470 AbstractCegarLoop]: Abstraction has 6504 states and 17522 transitions. [2022-03-01 15:29:30,725 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:30,725 INFO L276 IsEmpty]: Start isEmpty. Operand 6504 states and 17522 transitions. [2022-03-01 15:29:30,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:30,733 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:30,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:30,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2022-03-01 15:29:30,733 INFO L402 AbstractCegarLoop]: === Iteration 89 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:30,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:30,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1203312979, now seen corresponding path program 1 times [2022-03-01 15:29:30,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:30,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295428427] [2022-03-01 15:29:30,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:30,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:30,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:30,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:30,829 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:30,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295428427] [2022-03-01 15:29:30,829 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295428427] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:30,829 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:30,829 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 15:29:30,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144382787] [2022-03-01 15:29:30,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:30,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 15:29:30,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:30,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 15:29:30,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-01 15:29:30,830 INFO L87 Difference]: Start difference. First operand 6504 states and 17522 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:30,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:30,901 INFO L93 Difference]: Finished difference Result 8151 states and 21453 transitions. [2022-03-01 15:29:30,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 15:29:30,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:30,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:30,915 INFO L225 Difference]: With dead ends: 8151 [2022-03-01 15:29:30,915 INFO L226 Difference]: Without dead ends: 8151 [2022-03-01 15:29:30,915 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-01 15:29:30,915 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 329 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 329 SdHoareTripleChecker+Valid, 385 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:30,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [329 Valid, 385 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:29:30,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8151 states. [2022-03-01 15:29:30,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8151 to 6464. [2022-03-01 15:29:31,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6464 states, 6463 states have (on average 2.6527928206715146) internal successors, (17145), 6463 states have internal predecessors, (17145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:31,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6464 states to 6464 states and 17145 transitions. [2022-03-01 15:29:31,017 INFO L78 Accepts]: Start accepts. Automaton has 6464 states and 17145 transitions. Word has length 111 [2022-03-01 15:29:31,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:31,017 INFO L470 AbstractCegarLoop]: Abstraction has 6464 states and 17145 transitions. [2022-03-01 15:29:31,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:31,017 INFO L276 IsEmpty]: Start isEmpty. Operand 6464 states and 17145 transitions. [2022-03-01 15:29:31,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:31,025 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:31,025 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:31,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2022-03-01 15:29:31,025 INFO L402 AbstractCegarLoop]: === Iteration 90 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:31,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:31,025 INFO L85 PathProgramCache]: Analyzing trace with hash 698052543, now seen corresponding path program 2 times [2022-03-01 15:29:31,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:31,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717345587] [2022-03-01 15:29:31,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:31,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:31,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:31,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:31,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:31,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717345587] [2022-03-01 15:29:31,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717345587] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:31,067 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:31,067 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 15:29:31,067 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252229017] [2022-03-01 15:29:31,067 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:31,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 15:29:31,067 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:31,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 15:29:31,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-01 15:29:31,068 INFO L87 Difference]: Start difference. First operand 6464 states and 17145 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:31,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:31,175 INFO L93 Difference]: Finished difference Result 7764 states and 20288 transitions. [2022-03-01 15:29:31,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 15:29:31,175 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:31,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:31,187 INFO L225 Difference]: With dead ends: 7764 [2022-03-01 15:29:31,187 INFO L226 Difference]: Without dead ends: 7459 [2022-03-01 15:29:31,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:29:31,187 INFO L933 BasicCegarLoop]: 212 mSDtfsCounter, 259 mSDsluCounter, 349 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:31,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 548 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:29:31,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7459 states. [2022-03-01 15:29:31,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7459 to 6006. [2022-03-01 15:29:31,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6006 states, 6005 states have (on average 2.6432972522897584) internal successors, (15873), 6005 states have internal predecessors, (15873), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:31,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6006 states to 6006 states and 15873 transitions. [2022-03-01 15:29:31,296 INFO L78 Accepts]: Start accepts. Automaton has 6006 states and 15873 transitions. Word has length 111 [2022-03-01 15:29:31,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:31,296 INFO L470 AbstractCegarLoop]: Abstraction has 6006 states and 15873 transitions. [2022-03-01 15:29:31,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:31,296 INFO L276 IsEmpty]: Start isEmpty. Operand 6006 states and 15873 transitions. [2022-03-01 15:29:31,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:31,304 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:31,304 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:31,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2022-03-01 15:29:31,304 INFO L402 AbstractCegarLoop]: === Iteration 91 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:31,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:31,304 INFO L85 PathProgramCache]: Analyzing trace with hash 1745312769, now seen corresponding path program 3 times [2022-03-01 15:29:31,304 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:31,305 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489127544] [2022-03-01 15:29:31,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:31,305 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:31,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:31,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:31,354 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:31,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489127544] [2022-03-01 15:29:31,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489127544] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:31,354 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:31,354 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 15:29:31,354 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349301381] [2022-03-01 15:29:31,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:31,355 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 15:29:31,355 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:31,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 15:29:31,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-01 15:29:31,355 INFO L87 Difference]: Start difference. First operand 6006 states and 15873 transitions. Second operand has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:31,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:31,462 INFO L93 Difference]: Finished difference Result 8564 states and 22287 transitions. [2022-03-01 15:29:31,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-01 15:29:31,463 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:31,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:31,475 INFO L225 Difference]: With dead ends: 8564 [2022-03-01 15:29:31,475 INFO L226 Difference]: Without dead ends: 8456 [2022-03-01 15:29:31,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-01 15:29:31,475 INFO L933 BasicCegarLoop]: 261 mSDtfsCounter, 182 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:31,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 770 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:29:31,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8456 states. [2022-03-01 15:29:31,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8456 to 5859. [2022-03-01 15:29:31,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.6410037555479686) internal successors, (15471), 5858 states have internal predecessors, (15471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:31,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15471 transitions. [2022-03-01 15:29:31,567 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15471 transitions. Word has length 111 [2022-03-01 15:29:31,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:31,567 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15471 transitions. [2022-03-01 15:29:31,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.2) internal successors, (111), 5 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:31,567 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15471 transitions. [2022-03-01 15:29:31,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:31,573 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:31,574 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:31,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2022-03-01 15:29:31,574 INFO L402 AbstractCegarLoop]: === Iteration 92 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:31,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:31,574 INFO L85 PathProgramCache]: Analyzing trace with hash -390843391, now seen corresponding path program 13 times [2022-03-01 15:29:31,574 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:31,574 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [757749455] [2022-03-01 15:29:31,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:31,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:31,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:31,766 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:31,766 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:31,766 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [757749455] [2022-03-01 15:29:31,766 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [757749455] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:31,767 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:31,767 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:31,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828495439] [2022-03-01 15:29:31,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:31,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:31,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:31,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:31,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:31,768 INFO L87 Difference]: Start difference. First operand 5859 states and 15471 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:32,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:32,915 INFO L93 Difference]: Finished difference Result 9804 states and 25479 transitions. [2022-03-01 15:29:32,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-03-01 15:29:32,916 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:32,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:32,928 INFO L225 Difference]: With dead ends: 9804 [2022-03-01 15:29:32,928 INFO L226 Difference]: Without dead ends: 8763 [2022-03-01 15:29:32,929 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=716, Invalid=1834, Unknown=0, NotChecked=0, Total=2550 [2022-03-01 15:29:32,929 INFO L933 BasicCegarLoop]: 355 mSDtfsCounter, 1004 mSDsluCounter, 4315 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 4519 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:32,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1004 Valid, 4519 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:32,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8763 states. [2022-03-01 15:29:33,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8763 to 5871. [2022-03-01 15:29:33,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5871 states, 5870 states have (on average 2.6398637137989778) internal successors, (15496), 5870 states have internal predecessors, (15496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:33,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5871 states to 5871 states and 15496 transitions. [2022-03-01 15:29:33,028 INFO L78 Accepts]: Start accepts. Automaton has 5871 states and 15496 transitions. Word has length 111 [2022-03-01 15:29:33,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:33,028 INFO L470 AbstractCegarLoop]: Abstraction has 5871 states and 15496 transitions. [2022-03-01 15:29:33,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:33,028 INFO L276 IsEmpty]: Start isEmpty. Operand 5871 states and 15496 transitions. [2022-03-01 15:29:33,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:33,035 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:33,035 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:33,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2022-03-01 15:29:33,035 INFO L402 AbstractCegarLoop]: === Iteration 93 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:33,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:33,035 INFO L85 PathProgramCache]: Analyzing trace with hash -677040191, now seen corresponding path program 14 times [2022-03-01 15:29:33,035 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:33,035 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775662407] [2022-03-01 15:29:33,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:33,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:33,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:33,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:33,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775662407] [2022-03-01 15:29:33,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775662407] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:33,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:33,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:33,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923532539] [2022-03-01 15:29:33,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:33,229 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:33,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:33,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:33,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:33,229 INFO L87 Difference]: Start difference. First operand 5871 states and 15496 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:34,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:34,429 INFO L93 Difference]: Finished difference Result 9649 states and 25076 transitions. [2022-03-01 15:29:34,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:29:34,430 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:34,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:34,442 INFO L225 Difference]: With dead ends: 9649 [2022-03-01 15:29:34,442 INFO L226 Difference]: Without dead ends: 8670 [2022-03-01 15:29:34,443 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=665, Invalid=1785, Unknown=0, NotChecked=0, Total=2450 [2022-03-01 15:29:34,443 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 1008 mSDsluCounter, 4103 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1008 SdHoareTripleChecker+Valid, 4318 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:34,443 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1008 Valid, 4318 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:34,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8670 states. [2022-03-01 15:29:34,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8670 to 5883. [2022-03-01 15:29:34,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 5882 states have (on average 2.638048282896974) internal successors, (15517), 5882 states have internal predecessors, (15517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:34,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 15517 transitions. [2022-03-01 15:29:34,574 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 15517 transitions. Word has length 111 [2022-03-01 15:29:34,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:34,574 INFO L470 AbstractCegarLoop]: Abstraction has 5883 states and 15517 transitions. [2022-03-01 15:29:34,574 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:34,574 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 15517 transitions. [2022-03-01 15:29:34,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:34,580 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:34,580 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:34,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2022-03-01 15:29:34,580 INFO L402 AbstractCegarLoop]: === Iteration 94 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:34,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:34,580 INFO L85 PathProgramCache]: Analyzing trace with hash -905821675, now seen corresponding path program 15 times [2022-03-01 15:29:34,580 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:34,580 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909988732] [2022-03-01 15:29:34,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:34,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:34,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:34,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:34,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:34,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909988732] [2022-03-01 15:29:34,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909988732] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:34,775 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:34,775 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:34,775 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136356486] [2022-03-01 15:29:34,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:34,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:34,776 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:34,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:34,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:34,776 INFO L87 Difference]: Start difference. First operand 5883 states and 15517 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:35,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:35,869 INFO L93 Difference]: Finished difference Result 9091 states and 23642 transitions. [2022-03-01 15:29:35,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 15:29:35,870 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:35,870 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:35,881 INFO L225 Difference]: With dead ends: 9091 [2022-03-01 15:29:35,881 INFO L226 Difference]: Without dead ends: 8236 [2022-03-01 15:29:35,881 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 302 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=574, Invalid=1682, Unknown=0, NotChecked=0, Total=2256 [2022-03-01 15:29:35,882 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 844 mSDsluCounter, 4034 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 844 SdHoareTripleChecker+Valid, 4235 SdHoareTripleChecker+Invalid, 774 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:35,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [844 Valid, 4235 Invalid, 774 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 771 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:35,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8236 states. [2022-03-01 15:29:35,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8236 to 5939. [2022-03-01 15:29:35,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5939 states, 5938 states have (on average 2.630346918154261) internal successors, (15619), 5938 states have internal predecessors, (15619), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:35,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5939 states to 5939 states and 15619 transitions. [2022-03-01 15:29:35,963 INFO L78 Accepts]: Start accepts. Automaton has 5939 states and 15619 transitions. Word has length 111 [2022-03-01 15:29:35,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:35,963 INFO L470 AbstractCegarLoop]: Abstraction has 5939 states and 15619 transitions. [2022-03-01 15:29:35,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:35,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5939 states and 15619 transitions. [2022-03-01 15:29:35,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:35,970 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:35,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:35,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2022-03-01 15:29:35,971 INFO L402 AbstractCegarLoop]: === Iteration 95 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:35,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:35,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1065504533, now seen corresponding path program 16 times [2022-03-01 15:29:35,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:35,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731461566] [2022-03-01 15:29:35,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:35,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:36,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:36,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:36,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731461566] [2022-03-01 15:29:36,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731461566] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:36,179 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:36,179 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:36,179 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680780377] [2022-03-01 15:29:36,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:36,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:36,180 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:36,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:36,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:36,180 INFO L87 Difference]: Start difference. First operand 5939 states and 15619 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:37,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:37,226 INFO L93 Difference]: Finished difference Result 8657 states and 22484 transitions. [2022-03-01 15:29:37,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 15:29:37,226 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:37,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:37,239 INFO L225 Difference]: With dead ends: 8657 [2022-03-01 15:29:37,239 INFO L226 Difference]: Without dead ends: 8205 [2022-03-01 15:29:37,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 286 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=533, Invalid=1629, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 15:29:37,240 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 732 mSDsluCounter, 4189 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 732 SdHoareTripleChecker+Valid, 4379 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:37,240 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [732 Valid, 4379 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 822 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:37,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8205 states. [2022-03-01 15:29:37,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8205 to 5943. [2022-03-01 15:29:37,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5943 states, 5942 states have (on average 2.629754291484349) internal successors, (15626), 5942 states have internal predecessors, (15626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:37,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5943 states to 5943 states and 15626 transitions. [2022-03-01 15:29:37,336 INFO L78 Accepts]: Start accepts. Automaton has 5943 states and 15626 transitions. Word has length 111 [2022-03-01 15:29:37,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:37,337 INFO L470 AbstractCegarLoop]: Abstraction has 5943 states and 15626 transitions. [2022-03-01 15:29:37,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:37,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5943 states and 15626 transitions. [2022-03-01 15:29:37,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:37,343 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:37,343 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:37,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2022-03-01 15:29:37,343 INFO L402 AbstractCegarLoop]: === Iteration 96 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:37,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:37,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1654364947, now seen corresponding path program 17 times [2022-03-01 15:29:37,344 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:37,344 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220848755] [2022-03-01 15:29:37,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:37,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:37,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:37,533 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:37,533 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220848755] [2022-03-01 15:29:37,533 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220848755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:37,533 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:37,534 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:37,534 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291442015] [2022-03-01 15:29:37,534 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:37,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:37,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:37,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:37,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:37,534 INFO L87 Difference]: Start difference. First operand 5943 states and 15626 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:38,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:38,536 INFO L93 Difference]: Finished difference Result 8419 states and 21937 transitions. [2022-03-01 15:29:38,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 15:29:38,536 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:38,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:38,548 INFO L225 Difference]: With dead ends: 8419 [2022-03-01 15:29:38,548 INFO L226 Difference]: Without dead ends: 7998 [2022-03-01 15:29:38,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=493, Invalid=1577, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 15:29:38,549 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 645 mSDsluCounter, 3880 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 4081 SdHoareTripleChecker+Invalid, 797 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:38,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [645 Valid, 4081 Invalid, 797 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:38,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7998 states. [2022-03-01 15:29:38,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7998 to 5955. [2022-03-01 15:29:38,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5955 states, 5954 states have (on average 2.6279811891165603) internal successors, (15647), 5954 states have internal predecessors, (15647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:38,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5955 states to 5955 states and 15647 transitions. [2022-03-01 15:29:38,657 INFO L78 Accepts]: Start accepts. Automaton has 5955 states and 15647 transitions. Word has length 111 [2022-03-01 15:29:38,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:38,657 INFO L470 AbstractCegarLoop]: Abstraction has 5955 states and 15647 transitions. [2022-03-01 15:29:38,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:38,657 INFO L276 IsEmpty]: Start isEmpty. Operand 5955 states and 15647 transitions. [2022-03-01 15:29:38,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:38,664 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:38,664 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:38,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2022-03-01 15:29:38,664 INFO L402 AbstractCegarLoop]: === Iteration 97 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:38,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:38,665 INFO L85 PathProgramCache]: Analyzing trace with hash -809276455, now seen corresponding path program 18 times [2022-03-01 15:29:38,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:38,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859974372] [2022-03-01 15:29:38,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:38,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:38,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:38,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:38,855 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:38,855 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859974372] [2022-03-01 15:29:38,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859974372] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:38,855 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:38,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:38,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024600188] [2022-03-01 15:29:38,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:38,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:38,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:38,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:38,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:38,856 INFO L87 Difference]: Start difference. First operand 5955 states and 15647 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:39,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:39,808 INFO L93 Difference]: Finished difference Result 8264 states and 21530 transitions. [2022-03-01 15:29:39,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 15:29:39,809 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:39,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:39,821 INFO L225 Difference]: With dead ends: 8264 [2022-03-01 15:29:39,821 INFO L226 Difference]: Without dead ends: 7936 [2022-03-01 15:29:39,821 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=449, Invalid=1443, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 15:29:39,822 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 599 mSDsluCounter, 3895 mSDsCounter, 0 mSdLazyCounter, 821 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 4093 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:39,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [599 Valid, 4093 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 821 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:39,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7936 states. [2022-03-01 15:29:39,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7936 to 5959. [2022-03-01 15:29:39,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5958 states have (on average 2.6273917421953676) internal successors, (15654), 5958 states have internal predecessors, (15654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:39,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 15654 transitions. [2022-03-01 15:29:39,916 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 15654 transitions. Word has length 111 [2022-03-01 15:29:39,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:39,917 INFO L470 AbstractCegarLoop]: Abstraction has 5959 states and 15654 transitions. [2022-03-01 15:29:39,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:39,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 15654 transitions. [2022-03-01 15:29:39,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:39,924 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:39,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:39,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2022-03-01 15:29:39,924 INFO L402 AbstractCegarLoop]: === Iteration 98 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:39,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:39,924 INFO L85 PathProgramCache]: Analyzing trace with hash -513673619, now seen corresponding path program 19 times [2022-03-01 15:29:39,924 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:39,924 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765703179] [2022-03-01 15:29:39,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:39,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:40,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:40,118 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:40,118 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765703179] [2022-03-01 15:29:40,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765703179] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:40,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:40,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:40,119 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291342142] [2022-03-01 15:29:40,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:40,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:40,119 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:40,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:40,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:40,119 INFO L87 Difference]: Start difference. First operand 5959 states and 15654 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:40,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:40,993 INFO L93 Difference]: Finished difference Result 8171 states and 21289 transitions. [2022-03-01 15:29:40,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 15:29:40,994 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:40,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:41,006 INFO L225 Difference]: With dead ends: 8171 [2022-03-01 15:29:41,006 INFO L226 Difference]: Without dead ends: 7874 [2022-03-01 15:29:41,007 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=413, Invalid=1309, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:29:41,007 INFO L933 BasicCegarLoop]: 296 mSDtfsCounter, 603 mSDsluCounter, 3575 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 603 SdHoareTripleChecker+Valid, 3786 SdHoareTripleChecker+Invalid, 784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:41,007 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [603 Valid, 3786 Invalid, 784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:41,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7874 states. [2022-03-01 15:29:41,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7874 to 5963. [2022-03-01 15:29:41,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5963 states, 5962 states have (on average 2.6268030862126803) internal successors, (15661), 5962 states have internal predecessors, (15661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:41,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5963 states to 5963 states and 15661 transitions. [2022-03-01 15:29:41,101 INFO L78 Accepts]: Start accepts. Automaton has 5963 states and 15661 transitions. Word has length 111 [2022-03-01 15:29:41,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:41,101 INFO L470 AbstractCegarLoop]: Abstraction has 5963 states and 15661 transitions. [2022-03-01 15:29:41,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:41,102 INFO L276 IsEmpty]: Start isEmpty. Operand 5963 states and 15661 transitions. [2022-03-01 15:29:41,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:41,108 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:41,108 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:41,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2022-03-01 15:29:41,109 INFO L402 AbstractCegarLoop]: === Iteration 99 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:41,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:41,109 INFO L85 PathProgramCache]: Analyzing trace with hash -931855273, now seen corresponding path program 20 times [2022-03-01 15:29:41,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:41,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845949182] [2022-03-01 15:29:41,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:41,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:41,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:41,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:41,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:41,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845949182] [2022-03-01 15:29:41,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845949182] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:41,305 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:41,305 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:41,305 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554300590] [2022-03-01 15:29:41,305 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:41,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:41,305 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:41,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:41,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:41,306 INFO L87 Difference]: Start difference. First operand 5963 states and 15661 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:42,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:42,288 INFO L93 Difference]: Finished difference Result 8016 states and 20890 transitions. [2022-03-01 15:29:42,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 15:29:42,288 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:42,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:42,299 INFO L225 Difference]: With dead ends: 8016 [2022-03-01 15:29:42,299 INFO L226 Difference]: Without dead ends: 7753 [2022-03-01 15:29:42,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=479, Invalid=1243, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:29:42,300 INFO L933 BasicCegarLoop]: 285 mSDtfsCounter, 550 mSDsluCounter, 3618 mSDsCounter, 0 mSdLazyCounter, 862 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 550 SdHoareTripleChecker+Valid, 3833 SdHoareTripleChecker+Invalid, 865 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 862 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:42,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [550 Valid, 3833 Invalid, 865 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 862 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:42,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7753 states. [2022-03-01 15:29:42,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7753 to 5967. [2022-03-01 15:29:42,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5967 states, 5966 states have (on average 2.6262152195776065) internal successors, (15668), 5966 states have internal predecessors, (15668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:42,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5967 states to 5967 states and 15668 transitions. [2022-03-01 15:29:42,406 INFO L78 Accepts]: Start accepts. Automaton has 5967 states and 15668 transitions. Word has length 111 [2022-03-01 15:29:42,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:42,406 INFO L470 AbstractCegarLoop]: Abstraction has 5967 states and 15668 transitions. [2022-03-01 15:29:42,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:42,406 INFO L276 IsEmpty]: Start isEmpty. Operand 5967 states and 15668 transitions. [2022-03-01 15:29:42,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:42,412 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:42,412 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:42,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2022-03-01 15:29:42,412 INFO L402 AbstractCegarLoop]: === Iteration 100 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:42,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:42,412 INFO L85 PathProgramCache]: Analyzing trace with hash 560966161, now seen corresponding path program 21 times [2022-03-01 15:29:42,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:42,413 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444381891] [2022-03-01 15:29:42,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:42,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:42,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:42,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:42,603 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:42,603 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444381891] [2022-03-01 15:29:42,603 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444381891] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:42,603 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:42,603 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:42,603 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891264173] [2022-03-01 15:29:42,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:42,603 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:42,603 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:42,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:42,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:42,604 INFO L87 Difference]: Start difference. First operand 5967 states and 15668 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:43,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:43,450 INFO L93 Difference]: Finished difference Result 8019 states and 20892 transitions. [2022-03-01 15:29:43,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-01 15:29:43,451 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:43,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:43,461 INFO L225 Difference]: With dead ends: 8019 [2022-03-01 15:29:43,462 INFO L226 Difference]: Without dead ends: 7673 [2022-03-01 15:29:43,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=385, Invalid=1175, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 15:29:43,462 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 556 mSDsluCounter, 3554 mSDsCounter, 0 mSdLazyCounter, 804 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 556 SdHoareTripleChecker+Valid, 3769 SdHoareTripleChecker+Invalid, 807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 804 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:43,462 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [556 Valid, 3769 Invalid, 807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 804 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:43,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7673 states. [2022-03-01 15:29:43,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7673 to 5887. [2022-03-01 15:29:43,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5887 states, 5886 states have (on average 2.637444784233775) internal successors, (15524), 5886 states have internal predecessors, (15524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:43,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5887 states to 5887 states and 15524 transitions. [2022-03-01 15:29:43,545 INFO L78 Accepts]: Start accepts. Automaton has 5887 states and 15524 transitions. Word has length 111 [2022-03-01 15:29:43,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:43,545 INFO L470 AbstractCegarLoop]: Abstraction has 5887 states and 15524 transitions. [2022-03-01 15:29:43,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:43,545 INFO L276 IsEmpty]: Start isEmpty. Operand 5887 states and 15524 transitions. [2022-03-01 15:29:43,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:43,551 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:43,552 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:43,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2022-03-01 15:29:43,552 INFO L402 AbstractCegarLoop]: === Iteration 101 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:43,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:43,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1528285363, now seen corresponding path program 22 times [2022-03-01 15:29:43,552 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:43,552 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376878638] [2022-03-01 15:29:43,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:43,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:43,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:43,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:43,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:43,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376878638] [2022-03-01 15:29:43,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376878638] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:43,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:43,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:43,743 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245485928] [2022-03-01 15:29:43,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:43,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:43,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:43,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:43,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:43,744 INFO L87 Difference]: Start difference. First operand 5887 states and 15524 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:44,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:44,876 INFO L93 Difference]: Finished difference Result 8559 states and 22328 transitions. [2022-03-01 15:29:44,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:29:44,876 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:44,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:44,888 INFO L225 Difference]: With dead ends: 8559 [2022-03-01 15:29:44,888 INFO L226 Difference]: Without dead ends: 7649 [2022-03-01 15:29:44,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 320 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=618, Invalid=1734, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 15:29:44,889 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 819 mSDsluCounter, 4086 mSDsCounter, 0 mSdLazyCounter, 753 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 819 SdHoareTripleChecker+Valid, 4294 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 753 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:44,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [819 Valid, 4294 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 753 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:44,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7649 states. [2022-03-01 15:29:44,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7649 to 5863. [2022-03-01 15:29:44,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 5862 states have (on average 2.6403957693619926) internal successors, (15478), 5862 states have internal predecessors, (15478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:44,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 15478 transitions. [2022-03-01 15:29:44,979 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 15478 transitions. Word has length 111 [2022-03-01 15:29:44,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:44,979 INFO L470 AbstractCegarLoop]: Abstraction has 5863 states and 15478 transitions. [2022-03-01 15:29:44,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:44,979 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 15478 transitions. [2022-03-01 15:29:44,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:44,986 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:44,986 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:44,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2022-03-01 15:29:44,986 INFO L402 AbstractCegarLoop]: === Iteration 102 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:44,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:44,986 INFO L85 PathProgramCache]: Analyzing trace with hash -512997791, now seen corresponding path program 23 times [2022-03-01 15:29:44,986 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:44,987 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125751126] [2022-03-01 15:29:44,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:44,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:44,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:45,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:45,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:45,177 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125751126] [2022-03-01 15:29:45,177 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125751126] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:45,177 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:45,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:45,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926746991] [2022-03-01 15:29:45,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:45,177 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:45,177 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:45,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:45,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:45,178 INFO L87 Difference]: Start difference. First operand 5863 states and 15478 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:46,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:46,842 INFO L93 Difference]: Finished difference Result 9497 states and 24624 transitions. [2022-03-01 15:29:46,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:29:46,842 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:46,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:46,853 INFO L225 Difference]: With dead ends: 9497 [2022-03-01 15:29:46,853 INFO L226 Difference]: Without dead ends: 8421 [2022-03-01 15:29:46,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=789, Invalid=1967, Unknown=0, NotChecked=0, Total=2756 [2022-03-01 15:29:46,853 INFO L933 BasicCegarLoop]: 351 mSDtfsCounter, 1050 mSDsluCounter, 4219 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 4426 SdHoareTripleChecker+Invalid, 834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:46,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1050 Valid, 4426 Invalid, 834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:46,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8421 states. [2022-03-01 15:29:46,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8421 to 5859. [2022-03-01 15:29:46,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.640320928644589) internal successors, (15467), 5858 states have internal predecessors, (15467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:46,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15467 transitions. [2022-03-01 15:29:46,933 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15467 transitions. Word has length 111 [2022-03-01 15:29:46,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:46,933 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15467 transitions. [2022-03-01 15:29:46,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:46,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15467 transitions. [2022-03-01 15:29:46,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:46,939 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:46,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:46,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2022-03-01 15:29:46,939 INFO L402 AbstractCegarLoop]: === Iteration 103 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:46,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:46,940 INFO L85 PathProgramCache]: Analyzing trace with hash 948262599, now seen corresponding path program 24 times [2022-03-01 15:29:46,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:46,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133578523] [2022-03-01 15:29:46,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:46,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:46,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:47,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:47,120 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:47,120 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133578523] [2022-03-01 15:29:47,120 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133578523] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:47,120 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:47,120 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:47,120 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710554141] [2022-03-01 15:29:47,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:47,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:47,120 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:47,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:47,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:47,121 INFO L87 Difference]: Start difference. First operand 5859 states and 15467 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:48,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:48,191 INFO L93 Difference]: Finished difference Result 9400 states and 24376 transitions. [2022-03-01 15:29:48,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-01 15:29:48,191 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:48,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:48,204 INFO L225 Difference]: With dead ends: 9400 [2022-03-01 15:29:48,204 INFO L226 Difference]: Without dead ends: 8359 [2022-03-01 15:29:48,205 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 363 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=749, Invalid=1801, Unknown=0, NotChecked=0, Total=2550 [2022-03-01 15:29:48,205 INFO L933 BasicCegarLoop]: 354 mSDtfsCounter, 1105 mSDsluCounter, 4093 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1105 SdHoareTripleChecker+Valid, 4307 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:48,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1105 Valid, 4307 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:48,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8359 states. [2022-03-01 15:29:48,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8359 to 5867. [2022-03-01 15:29:48,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5867 states, 5866 states have (on average 2.639106716672349) internal successors, (15481), 5866 states have internal predecessors, (15481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:48,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5867 states to 5867 states and 15481 transitions. [2022-03-01 15:29:48,293 INFO L78 Accepts]: Start accepts. Automaton has 5867 states and 15481 transitions. Word has length 111 [2022-03-01 15:29:48,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:48,293 INFO L470 AbstractCegarLoop]: Abstraction has 5867 states and 15481 transitions. [2022-03-01 15:29:48,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:48,293 INFO L276 IsEmpty]: Start isEmpty. Operand 5867 states and 15481 transitions. [2022-03-01 15:29:48,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:48,299 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:48,299 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:48,299 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2022-03-01 15:29:48,299 INFO L402 AbstractCegarLoop]: === Iteration 104 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:48,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:48,299 INFO L85 PathProgramCache]: Analyzing trace with hash 662065799, now seen corresponding path program 25 times [2022-03-01 15:29:48,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:48,300 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973936069] [2022-03-01 15:29:48,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:48,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:48,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:48,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:48,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:48,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973936069] [2022-03-01 15:29:48,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973936069] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:48,489 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:48,489 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:48,489 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032495450] [2022-03-01 15:29:48,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:48,489 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:48,489 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:48,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:48,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:48,490 INFO L87 Difference]: Start difference. First operand 5867 states and 15481 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:49,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:49,595 INFO L93 Difference]: Finished difference Result 9493 states and 24647 transitions. [2022-03-01 15:29:49,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:29:49,595 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:49,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:49,607 INFO L225 Difference]: With dead ends: 9493 [2022-03-01 15:29:49,607 INFO L226 Difference]: Without dead ends: 8514 [2022-03-01 15:29:49,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 337 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=695, Invalid=1755, Unknown=0, NotChecked=0, Total=2450 [2022-03-01 15:29:49,608 INFO L933 BasicCegarLoop]: 361 mSDtfsCounter, 956 mSDsluCounter, 4522 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 956 SdHoareTripleChecker+Valid, 4716 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:49,608 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [956 Valid, 4716 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:49,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8514 states. [2022-03-01 15:29:49,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8514 to 5879. [2022-03-01 15:29:49,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 5878 states have (on average 2.637291595780878) internal successors, (15502), 5878 states have internal predecessors, (15502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:49,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 15502 transitions. [2022-03-01 15:29:49,692 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 15502 transitions. Word has length 111 [2022-03-01 15:29:49,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:49,692 INFO L470 AbstractCegarLoop]: Abstraction has 5879 states and 15502 transitions. [2022-03-01 15:29:49,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:49,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 15502 transitions. [2022-03-01 15:29:49,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:49,698 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:49,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:49,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2022-03-01 15:29:49,699 INFO L402 AbstractCegarLoop]: === Iteration 105 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:49,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:49,699 INFO L85 PathProgramCache]: Analyzing trace with hash 433284315, now seen corresponding path program 26 times [2022-03-01 15:29:49,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:49,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259320480] [2022-03-01 15:29:49,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:49,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:49,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:49,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:49,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:49,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259320480] [2022-03-01 15:29:49,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259320480] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:49,899 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:49,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:49,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196458857] [2022-03-01 15:29:49,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:49,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:49,899 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:49,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:49,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:49,900 INFO L87 Difference]: Start difference. First operand 5879 states and 15502 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:50,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:50,943 INFO L93 Difference]: Finished difference Result 9047 states and 23517 transitions. [2022-03-01 15:29:50,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 15:29:50,943 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:50,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:50,955 INFO L225 Difference]: With dead ends: 9047 [2022-03-01 15:29:50,955 INFO L226 Difference]: Without dead ends: 8192 [2022-03-01 15:29:50,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 305 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=600, Invalid=1656, Unknown=0, NotChecked=0, Total=2256 [2022-03-01 15:29:50,955 INFO L933 BasicCegarLoop]: 342 mSDtfsCounter, 903 mSDsluCounter, 4162 mSDsCounter, 0 mSdLazyCounter, 789 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 903 SdHoareTripleChecker+Valid, 4354 SdHoareTripleChecker+Invalid, 793 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 789 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:50,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [903 Valid, 4354 Invalid, 793 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 789 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:50,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8192 states. [2022-03-01 15:29:51,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8192 to 5935. [2022-03-01 15:29:51,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 5934 states have (on average 2.629592180653859) internal successors, (15604), 5934 states have internal predecessors, (15604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:51,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 15604 transitions. [2022-03-01 15:29:51,046 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 15604 transitions. Word has length 111 [2022-03-01 15:29:51,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:51,047 INFO L470 AbstractCegarLoop]: Abstraction has 5935 states and 15604 transitions. [2022-03-01 15:29:51,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:51,047 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 15604 transitions. [2022-03-01 15:29:51,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:51,053 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:51,053 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:51,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2022-03-01 15:29:51,053 INFO L402 AbstractCegarLoop]: === Iteration 106 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:51,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:51,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1890356773, now seen corresponding path program 27 times [2022-03-01 15:29:51,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:51,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171442064] [2022-03-01 15:29:51,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:51,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:51,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:51,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:51,241 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:51,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171442064] [2022-03-01 15:29:51,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171442064] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:51,242 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:51,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:51,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664265483] [2022-03-01 15:29:51,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:51,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:51,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:51,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:51,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:51,243 INFO L87 Difference]: Start difference. First operand 5935 states and 15604 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:52,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:52,192 INFO L93 Difference]: Finished difference Result 8613 states and 22359 transitions. [2022-03-01 15:29:52,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 15:29:52,192 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:52,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:52,204 INFO L225 Difference]: With dead ends: 8613 [2022-03-01 15:29:52,204 INFO L226 Difference]: Without dead ends: 8161 [2022-03-01 15:29:52,204 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=557, Invalid=1605, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 15:29:52,204 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 813 mSDsluCounter, 3954 mSDsCounter, 0 mSdLazyCounter, 755 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 4138 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:52,205 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [813 Valid, 4138 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 755 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:52,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8161 states. [2022-03-01 15:29:52,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8161 to 5939. [2022-03-01 15:29:52,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5939 states, 5938 states have (on average 2.628999663186258) internal successors, (15611), 5938 states have internal predecessors, (15611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:52,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5939 states to 5939 states and 15611 transitions. [2022-03-01 15:29:52,287 INFO L78 Accepts]: Start accepts. Automaton has 5939 states and 15611 transitions. Word has length 111 [2022-03-01 15:29:52,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:52,287 INFO L470 AbstractCegarLoop]: Abstraction has 5939 states and 15611 transitions. [2022-03-01 15:29:52,287 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:52,287 INFO L276 IsEmpty]: Start isEmpty. Operand 5939 states and 15611 transitions. [2022-03-01 15:29:52,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:52,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:52,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:52,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2022-03-01 15:29:52,293 INFO L402 AbstractCegarLoop]: === Iteration 107 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:52,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:52,294 INFO L85 PathProgramCache]: Analyzing trace with hash -1301496359, now seen corresponding path program 28 times [2022-03-01 15:29:52,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:52,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429785751] [2022-03-01 15:29:52,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:52,294 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:52,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:52,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:52,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429785751] [2022-03-01 15:29:52,498 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429785751] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:52,498 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:52,498 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:52,498 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894778638] [2022-03-01 15:29:52,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:52,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:52,498 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:52,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:52,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:52,498 INFO L87 Difference]: Start difference. First operand 5939 states and 15611 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:53,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:53,388 INFO L93 Difference]: Finished difference Result 8375 states and 21812 transitions. [2022-03-01 15:29:53,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 15:29:53,388 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:53,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:53,399 INFO L225 Difference]: With dead ends: 8375 [2022-03-01 15:29:53,399 INFO L226 Difference]: Without dead ends: 7954 [2022-03-01 15:29:53,399 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 274 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=515, Invalid=1555, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 15:29:53,400 INFO L933 BasicCegarLoop]: 315 mSDtfsCounter, 673 mSDsluCounter, 4008 mSDsCounter, 0 mSdLazyCounter, 797 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 673 SdHoareTripleChecker+Valid, 4186 SdHoareTripleChecker+Invalid, 801 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:53,400 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [673 Valid, 4186 Invalid, 801 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 797 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:53,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7954 states. [2022-03-01 15:29:53,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7954 to 5951. [2022-03-01 15:29:53,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5951 states, 5950 states have (on average 2.6272268907563023) internal successors, (15632), 5950 states have internal predecessors, (15632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:53,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5951 states to 5951 states and 15632 transitions. [2022-03-01 15:29:53,476 INFO L78 Accepts]: Start accepts. Automaton has 5951 states and 15632 transitions. Word has length 111 [2022-03-01 15:29:53,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:53,477 INFO L470 AbstractCegarLoop]: Abstraction has 5951 states and 15632 transitions. [2022-03-01 15:29:53,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:53,477 INFO L276 IsEmpty]: Start isEmpty. Operand 5951 states and 15632 transitions. [2022-03-01 15:29:53,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:53,482 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:53,483 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:53,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2022-03-01 15:29:53,483 INFO L402 AbstractCegarLoop]: === Iteration 108 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:53,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:53,483 INFO L85 PathProgramCache]: Analyzing trace with hash 529829535, now seen corresponding path program 29 times [2022-03-01 15:29:53,483 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:53,483 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [850009386] [2022-03-01 15:29:53,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:53,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:53,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:53,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:53,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:53,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [850009386] [2022-03-01 15:29:53,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [850009386] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:53,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:53,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:53,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841377960] [2022-03-01 15:29:53,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:53,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:53,667 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:53,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:53,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:53,667 INFO L87 Difference]: Start difference. First operand 5951 states and 15632 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:54,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:54,518 INFO L93 Difference]: Finished difference Result 8220 states and 21405 transitions. [2022-03-01 15:29:54,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 15:29:54,518 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:54,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:54,529 INFO L225 Difference]: With dead ends: 8220 [2022-03-01 15:29:54,529 INFO L226 Difference]: Without dead ends: 7892 [2022-03-01 15:29:54,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=467, Invalid=1425, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 15:29:54,529 INFO L933 BasicCegarLoop]: 306 mSDtfsCounter, 644 mSDsluCounter, 3765 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 644 SdHoareTripleChecker+Valid, 3949 SdHoareTripleChecker+Invalid, 761 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:54,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [644 Valid, 3949 Invalid, 761 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:54,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7892 states. [2022-03-01 15:29:54,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7892 to 5955. [2022-03-01 15:29:54,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5955 states, 5954 states have (on average 2.626637554585153) internal successors, (15639), 5954 states have internal predecessors, (15639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:54,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5955 states to 5955 states and 15639 transitions. [2022-03-01 15:29:54,606 INFO L78 Accepts]: Start accepts. Automaton has 5955 states and 15639 transitions. Word has length 111 [2022-03-01 15:29:54,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:54,606 INFO L470 AbstractCegarLoop]: Abstraction has 5955 states and 15639 transitions. [2022-03-01 15:29:54,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:54,607 INFO L276 IsEmpty]: Start isEmpty. Operand 5955 states and 15639 transitions. [2022-03-01 15:29:54,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:54,612 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:54,612 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:54,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2022-03-01 15:29:54,613 INFO L402 AbstractCegarLoop]: === Iteration 109 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:54,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:54,613 INFO L85 PathProgramCache]: Analyzing trace with hash 825432371, now seen corresponding path program 30 times [2022-03-01 15:29:54,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:54,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569951969] [2022-03-01 15:29:54,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:54,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:54,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:54,794 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:54,794 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569951969] [2022-03-01 15:29:54,794 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569951969] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:54,794 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:54,794 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:54,794 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999344635] [2022-03-01 15:29:54,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:54,795 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:54,795 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:54,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:54,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:54,795 INFO L87 Difference]: Start difference. First operand 5955 states and 15639 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:55,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:55,593 INFO L93 Difference]: Finished difference Result 8127 states and 21164 transitions. [2022-03-01 15:29:55,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:29:55,593 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:55,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:55,605 INFO L225 Difference]: With dead ends: 8127 [2022-03-01 15:29:55,605 INFO L226 Difference]: Without dead ends: 7830 [2022-03-01 15:29:55,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=427, Invalid=1295, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:29:55,606 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 616 mSDsluCounter, 3791 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 616 SdHoareTripleChecker+Valid, 3973 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:55,606 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [616 Valid, 3973 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:55,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7830 states. [2022-03-01 15:29:55,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7830 to 5959. [2022-03-01 15:29:55,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5959 states, 5958 states have (on average 2.6260490097348104) internal successors, (15646), 5958 states have internal predecessors, (15646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:55,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5959 states to 5959 states and 15646 transitions. [2022-03-01 15:29:55,692 INFO L78 Accepts]: Start accepts. Automaton has 5959 states and 15646 transitions. Word has length 111 [2022-03-01 15:29:55,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:55,692 INFO L470 AbstractCegarLoop]: Abstraction has 5959 states and 15646 transitions. [2022-03-01 15:29:55,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:55,692 INFO L276 IsEmpty]: Start isEmpty. Operand 5959 states and 15646 transitions. [2022-03-01 15:29:55,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:55,697 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:55,698 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:55,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2022-03-01 15:29:55,698 INFO L402 AbstractCegarLoop]: === Iteration 110 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:55,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:55,698 INFO L85 PathProgramCache]: Analyzing trace with hash 407250717, now seen corresponding path program 31 times [2022-03-01 15:29:55,698 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:55,698 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351646871] [2022-03-01 15:29:55,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:55,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:55,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:55,880 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:55,880 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351646871] [2022-03-01 15:29:55,880 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351646871] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:55,880 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:55,880 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:55,880 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937221668] [2022-03-01 15:29:55,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:55,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:55,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:55,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:55,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:55,881 INFO L87 Difference]: Start difference. First operand 5959 states and 15646 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:56,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:56,843 INFO L93 Difference]: Finished difference Result 7972 states and 20765 transitions. [2022-03-01 15:29:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:29:56,843 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:56,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:56,854 INFO L225 Difference]: With dead ends: 7972 [2022-03-01 15:29:56,855 INFO L226 Difference]: Without dead ends: 7709 [2022-03-01 15:29:56,855 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=485, Invalid=1237, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:29:56,855 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 529 mSDsluCounter, 3538 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 529 SdHoareTripleChecker+Valid, 3728 SdHoareTripleChecker+Invalid, 756 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:56,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [529 Valid, 3728 Invalid, 756 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:56,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7709 states. [2022-03-01 15:29:56,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7709 to 5963. [2022-03-01 15:29:56,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5963 states, 5962 states have (on average 2.625461254612546) internal successors, (15653), 5962 states have internal predecessors, (15653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:56,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5963 states to 5963 states and 15653 transitions. [2022-03-01 15:29:56,946 INFO L78 Accepts]: Start accepts. Automaton has 5963 states and 15653 transitions. Word has length 111 [2022-03-01 15:29:56,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:56,947 INFO L470 AbstractCegarLoop]: Abstraction has 5963 states and 15653 transitions. [2022-03-01 15:29:56,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:56,947 INFO L276 IsEmpty]: Start isEmpty. Operand 5963 states and 15653 transitions. [2022-03-01 15:29:56,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:56,953 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:56,953 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:56,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2022-03-01 15:29:56,953 INFO L402 AbstractCegarLoop]: === Iteration 111 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:56,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:56,954 INFO L85 PathProgramCache]: Analyzing trace with hash 1900072151, now seen corresponding path program 32 times [2022-03-01 15:29:56,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:56,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145897525] [2022-03-01 15:29:56,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:56,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:56,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:57,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:57,127 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:57,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145897525] [2022-03-01 15:29:57,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145897525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:57,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:57,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:57,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595552229] [2022-03-01 15:29:57,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:57,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:57,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:57,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:57,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:57,128 INFO L87 Difference]: Start difference. First operand 5963 states and 15653 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:57,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:57,904 INFO L93 Difference]: Finished difference Result 7975 states and 20767 transitions. [2022-03-01 15:29:57,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 15:29:57,904 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:57,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:57,916 INFO L225 Difference]: With dead ends: 7975 [2022-03-01 15:29:57,916 INFO L226 Difference]: Without dead ends: 7629 [2022-03-01 15:29:57,916 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=395, Invalid=1165, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 15:29:57,916 INFO L933 BasicCegarLoop]: 291 mSDtfsCounter, 612 mSDsluCounter, 3539 mSDsCounter, 0 mSdLazyCounter, 742 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 612 SdHoareTripleChecker+Valid, 3731 SdHoareTripleChecker+Invalid, 746 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 742 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:57,916 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [612 Valid, 3731 Invalid, 746 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 742 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:57,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7629 states. [2022-03-01 15:29:58,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7629 to 5883. [2022-03-01 15:29:58,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 5882 states have (on average 2.6366882012920776) internal successors, (15509), 5882 states have internal predecessors, (15509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:58,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 15509 transitions. [2022-03-01 15:29:58,017 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 15509 transitions. Word has length 111 [2022-03-01 15:29:58,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:58,017 INFO L470 AbstractCegarLoop]: Abstraction has 5883 states and 15509 transitions. [2022-03-01 15:29:58,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:58,017 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 15509 transitions. [2022-03-01 15:29:58,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:58,024 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:58,024 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:58,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2022-03-01 15:29:58,024 INFO L402 AbstractCegarLoop]: === Iteration 112 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:58,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:58,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1427575943, now seen corresponding path program 33 times [2022-03-01 15:29:58,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:58,025 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504828000] [2022-03-01 15:29:58,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:58,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:58,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:58,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:58,202 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:58,202 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504828000] [2022-03-01 15:29:58,202 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504828000] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:58,202 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:58,202 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:58,202 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416235927] [2022-03-01 15:29:58,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:58,202 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:58,202 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:58,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:58,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:58,203 INFO L87 Difference]: Start difference. First operand 5883 states and 15509 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:59,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:29:59,224 INFO L93 Difference]: Finished difference Result 8403 states and 21899 transitions. [2022-03-01 15:29:59,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:29:59,224 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:29:59,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:29:59,235 INFO L225 Difference]: With dead ends: 8403 [2022-03-01 15:29:59,235 INFO L226 Difference]: Without dead ends: 7493 [2022-03-01 15:29:59,236 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=646, Invalid=1706, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 15:29:59,236 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 751 mSDsluCounter, 4414 mSDsCounter, 0 mSdLazyCounter, 758 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 751 SdHoareTripleChecker+Valid, 4605 SdHoareTripleChecker+Invalid, 762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:29:59,236 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [751 Valid, 4605 Invalid, 762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 758 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:29:59,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7493 states. [2022-03-01 15:29:59,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7493 to 5859. [2022-03-01 15:29:59,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.6389552748378287) internal successors, (15459), 5858 states have internal predecessors, (15459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:59,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15459 transitions. [2022-03-01 15:29:59,321 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15459 transitions. Word has length 111 [2022-03-01 15:29:59,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:29:59,322 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15459 transitions. [2022-03-01 15:29:59,322 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:29:59,322 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15459 transitions. [2022-03-01 15:29:59,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:29:59,327 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:29:59,328 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:29:59,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2022-03-01 15:29:59,328 INFO L402 AbstractCegarLoop]: === Iteration 113 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:29:59,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:29:59,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1831376339, now seen corresponding path program 34 times [2022-03-01 15:29:59,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:29:59,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313096882] [2022-03-01 15:29:59,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:29:59,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:29:59,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:29:59,505 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:29:59,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:29:59,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313096882] [2022-03-01 15:29:59,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313096882] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:29:59,505 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:29:59,505 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:29:59,505 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932469770] [2022-03-01 15:29:59,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:29:59,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:29:59,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:29:59,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:29:59,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:29:59,506 INFO L87 Difference]: Start difference. First operand 5859 states and 15459 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:00,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:00,574 INFO L93 Difference]: Finished difference Result 9237 states and 23951 transitions. [2022-03-01 15:30:00,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-03-01 15:30:00,574 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:00,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:00,585 INFO L225 Difference]: With dead ends: 9237 [2022-03-01 15:30:00,586 INFO L226 Difference]: Without dead ends: 8258 [2022-03-01 15:30:00,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=725, Invalid=1725, Unknown=0, NotChecked=0, Total=2450 [2022-03-01 15:30:00,586 INFO L933 BasicCegarLoop]: 360 mSDtfsCounter, 1059 mSDsluCounter, 4085 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1059 SdHoareTripleChecker+Valid, 4295 SdHoareTripleChecker+Invalid, 679 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:00,586 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1059 Valid, 4295 Invalid, 679 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:00,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8258 states. [2022-03-01 15:30:00,658 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8258 to 5871. [2022-03-01 15:30:00,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5871 states, 5870 states have (on average 2.6371379897785348) internal successors, (15480), 5870 states have internal predecessors, (15480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:00,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5871 states to 5871 states and 15480 transitions. [2022-03-01 15:30:00,673 INFO L78 Accepts]: Start accepts. Automaton has 5871 states and 15480 transitions. Word has length 111 [2022-03-01 15:30:00,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:00,674 INFO L470 AbstractCegarLoop]: Abstraction has 5871 states and 15480 transitions. [2022-03-01 15:30:00,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:00,674 INFO L276 IsEmpty]: Start isEmpty. Operand 5871 states and 15480 transitions. [2022-03-01 15:30:00,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:00,682 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:00,682 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:00,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2022-03-01 15:30:00,682 INFO L402 AbstractCegarLoop]: === Iteration 114 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:00,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:00,682 INFO L85 PathProgramCache]: Analyzing trace with hash -2060157823, now seen corresponding path program 35 times [2022-03-01 15:30:00,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:00,683 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064015028] [2022-03-01 15:30:00,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:00,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:00,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:00,862 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:00,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:00,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064015028] [2022-03-01 15:30:00,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064015028] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:00,862 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:00,862 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:00,862 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995302722] [2022-03-01 15:30:00,862 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:00,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:00,862 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:00,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:00,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:00,863 INFO L87 Difference]: Start difference. First operand 5871 states and 15480 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:01,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:01,944 INFO L93 Difference]: Finished difference Result 9015 states and 23429 transitions. [2022-03-01 15:30:01,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 15:30:01,944 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:01,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:01,955 INFO L225 Difference]: With dead ends: 9015 [2022-03-01 15:30:01,956 INFO L226 Difference]: Without dead ends: 8160 [2022-03-01 15:30:01,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=625, Invalid=1631, Unknown=0, NotChecked=0, Total=2256 [2022-03-01 15:30:01,956 INFO L933 BasicCegarLoop]: 349 mSDtfsCounter, 879 mSDsluCounter, 4199 mSDsCounter, 0 mSdLazyCounter, 767 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 879 SdHoareTripleChecker+Valid, 4392 SdHoareTripleChecker+Invalid, 771 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 767 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:01,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [879 Valid, 4392 Invalid, 771 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 767 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:01,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8160 states. [2022-03-01 15:30:02,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8160 to 5927. [2022-03-01 15:30:02,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5927 states, 5926 states have (on average 2.6294296321295985) internal successors, (15582), 5926 states have internal predecessors, (15582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:02,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5927 states to 5927 states and 15582 transitions. [2022-03-01 15:30:02,044 INFO L78 Accepts]: Start accepts. Automaton has 5927 states and 15582 transitions. Word has length 111 [2022-03-01 15:30:02,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:02,044 INFO L470 AbstractCegarLoop]: Abstraction has 5927 states and 15582 transitions. [2022-03-01 15:30:02,044 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:02,044 INFO L276 IsEmpty]: Start isEmpty. Operand 5927 states and 15582 transitions. [2022-03-01 15:30:02,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:02,051 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:02,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:02,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2022-03-01 15:30:02,051 INFO L402 AbstractCegarLoop]: === Iteration 115 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:02,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:02,051 INFO L85 PathProgramCache]: Analyzing trace with hash -88831615, now seen corresponding path program 36 times [2022-03-01 15:30:02,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:02,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782144252] [2022-03-01 15:30:02,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:02,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:02,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:02,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:02,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:02,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782144252] [2022-03-01 15:30:02,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782144252] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:02,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:02,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:02,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084448415] [2022-03-01 15:30:02,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:02,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:02,229 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:02,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:02,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:02,229 INFO L87 Difference]: Start difference. First operand 5927 states and 15582 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:03,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:03,224 INFO L93 Difference]: Finished difference Result 8581 states and 22271 transitions. [2022-03-01 15:30:03,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 15:30:03,224 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:03,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:03,236 INFO L225 Difference]: With dead ends: 8581 [2022-03-01 15:30:03,237 INFO L226 Difference]: Without dead ends: 8129 [2022-03-01 15:30:03,237 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 279 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=580, Invalid=1582, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 15:30:03,237 INFO L933 BasicCegarLoop]: 331 mSDtfsCounter, 881 mSDsluCounter, 3911 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 881 SdHoareTripleChecker+Valid, 4096 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:03,237 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [881 Valid, 4096 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:03,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8129 states. [2022-03-01 15:30:03,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8129 to 5931. [2022-03-01 15:30:03,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5931 states, 5930 states have (on average 2.6288364249578415) internal successors, (15589), 5930 states have internal predecessors, (15589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:03,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 15589 transitions. [2022-03-01 15:30:03,330 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 15589 transitions. Word has length 111 [2022-03-01 15:30:03,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:03,331 INFO L470 AbstractCegarLoop]: Abstraction has 5931 states and 15589 transitions. [2022-03-01 15:30:03,331 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:03,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 15589 transitions. [2022-03-01 15:30:03,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:03,337 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:03,337 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:03,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2022-03-01 15:30:03,337 INFO L402 AbstractCegarLoop]: === Iteration 116 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:03,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:03,338 INFO L85 PathProgramCache]: Analyzing trace with hash 500028799, now seen corresponding path program 37 times [2022-03-01 15:30:03,338 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:03,338 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156505591] [2022-03-01 15:30:03,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:03,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:03,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:03,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:03,512 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:03,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156505591] [2022-03-01 15:30:03,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [156505591] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:03,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:03,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:03,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000360260] [2022-03-01 15:30:03,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:03,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:03,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:03,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:03,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:03,513 INFO L87 Difference]: Start difference. First operand 5931 states and 15589 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:04,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:04,473 INFO L93 Difference]: Finished difference Result 8343 states and 21724 transitions. [2022-03-01 15:30:04,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 15:30:04,473 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:04,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:04,484 INFO L225 Difference]: With dead ends: 8343 [2022-03-01 15:30:04,484 INFO L226 Difference]: Without dead ends: 7922 [2022-03-01 15:30:04,484 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=536, Invalid=1534, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 15:30:04,484 INFO L933 BasicCegarLoop]: 322 mSDtfsCounter, 720 mSDsluCounter, 3991 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 720 SdHoareTripleChecker+Valid, 4171 SdHoareTripleChecker+Invalid, 783 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:04,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [720 Valid, 4171 Invalid, 783 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:04,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7922 states. [2022-03-01 15:30:04,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7922 to 5943. [2022-03-01 15:30:04,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5943 states, 5942 states have (on average 2.6270615954224166) internal successors, (15610), 5942 states have internal predecessors, (15610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:04,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5943 states to 5943 states and 15610 transitions. [2022-03-01 15:30:04,560 INFO L78 Accepts]: Start accepts. Automaton has 5943 states and 15610 transitions. Word has length 111 [2022-03-01 15:30:04,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:04,560 INFO L470 AbstractCegarLoop]: Abstraction has 5943 states and 15610 transitions. [2022-03-01 15:30:04,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:04,561 INFO L276 IsEmpty]: Start isEmpty. Operand 5943 states and 15610 transitions. [2022-03-01 15:30:04,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:04,566 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:04,566 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:04,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2022-03-01 15:30:04,566 INFO L402 AbstractCegarLoop]: === Iteration 117 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:04,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:04,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1963612603, now seen corresponding path program 38 times [2022-03-01 15:30:04,567 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:04,567 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004988155] [2022-03-01 15:30:04,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:04,567 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:04,744 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:04,745 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:04,745 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004988155] [2022-03-01 15:30:04,745 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004988155] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:04,745 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:04,745 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:04,745 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324878574] [2022-03-01 15:30:04,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:04,745 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:04,745 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:04,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:04,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:04,746 INFO L87 Difference]: Start difference. First operand 5943 states and 15610 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:05,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:05,647 INFO L93 Difference]: Finished difference Result 8188 states and 21317 transitions. [2022-03-01 15:30:05,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 15:30:05,647 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:05,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:05,658 INFO L225 Difference]: With dead ends: 8188 [2022-03-01 15:30:05,658 INFO L226 Difference]: Without dead ends: 7860 [2022-03-01 15:30:05,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=484, Invalid=1408, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 15:30:05,658 INFO L933 BasicCegarLoop]: 313 mSDtfsCounter, 620 mSDsluCounter, 3871 mSDsCounter, 0 mSdLazyCounter, 759 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 620 SdHoareTripleChecker+Valid, 4050 SdHoareTripleChecker+Invalid, 763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:05,659 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [620 Valid, 4050 Invalid, 763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 759 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:05,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7860 states. [2022-03-01 15:30:05,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7860 to 5947. [2022-03-01 15:30:05,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5947 states, 5946 states have (on average 2.626471577531113) internal successors, (15617), 5946 states have internal predecessors, (15617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:05,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5947 states to 5947 states and 15617 transitions. [2022-03-01 15:30:05,747 INFO L78 Accepts]: Start accepts. Automaton has 5947 states and 15617 transitions. Word has length 111 [2022-03-01 15:30:05,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:05,747 INFO L470 AbstractCegarLoop]: Abstraction has 5947 states and 15617 transitions. [2022-03-01 15:30:05,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:05,748 INFO L276 IsEmpty]: Start isEmpty. Operand 5947 states and 15617 transitions. [2022-03-01 15:30:05,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:05,754 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:05,754 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:05,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2022-03-01 15:30:05,755 INFO L402 AbstractCegarLoop]: === Iteration 118 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:05,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:05,755 INFO L85 PathProgramCache]: Analyzing trace with hash -1668009767, now seen corresponding path program 39 times [2022-03-01 15:30:05,755 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:05,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951498478] [2022-03-01 15:30:05,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:05,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:05,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:05,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:05,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951498478] [2022-03-01 15:30:05,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951498478] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:05,954 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:05,954 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:05,954 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819348294] [2022-03-01 15:30:05,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:05,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:05,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:05,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:05,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:05,955 INFO L87 Difference]: Start difference. First operand 5947 states and 15617 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:06,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:06,791 INFO L93 Difference]: Finished difference Result 8095 states and 21076 transitions. [2022-03-01 15:30:06,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:30:06,791 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:06,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:06,803 INFO L225 Difference]: With dead ends: 8095 [2022-03-01 15:30:06,803 INFO L226 Difference]: Without dead ends: 7798 [2022-03-01 15:30:06,803 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=440, Invalid=1282, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:30:06,803 INFO L933 BasicCegarLoop]: 305 mSDtfsCounter, 663 mSDsluCounter, 3795 mSDsCounter, 0 mSdLazyCounter, 768 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 663 SdHoareTripleChecker+Valid, 3977 SdHoareTripleChecker+Invalid, 772 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 768 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:06,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [663 Valid, 3977 Invalid, 772 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 768 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:06,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7798 states. [2022-03-01 15:30:06,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7798 to 5951. [2022-03-01 15:30:06,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5951 states, 5950 states have (on average 2.6258823529411766) internal successors, (15624), 5950 states have internal predecessors, (15624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:06,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5951 states to 5951 states and 15624 transitions. [2022-03-01 15:30:06,881 INFO L78 Accepts]: Start accepts. Automaton has 5951 states and 15624 transitions. Word has length 111 [2022-03-01 15:30:06,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:06,881 INFO L470 AbstractCegarLoop]: Abstraction has 5951 states and 15624 transitions. [2022-03-01 15:30:06,881 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:06,881 INFO L276 IsEmpty]: Start isEmpty. Operand 5951 states and 15624 transitions. [2022-03-01 15:30:06,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:06,887 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:06,887 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:06,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2022-03-01 15:30:06,887 INFO L402 AbstractCegarLoop]: === Iteration 119 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:06,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:06,887 INFO L85 PathProgramCache]: Analyzing trace with hash -2086191421, now seen corresponding path program 40 times [2022-03-01 15:30:06,888 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:06,888 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113220186] [2022-03-01 15:30:06,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:06,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:06,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:07,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:07,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:07,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113220186] [2022-03-01 15:30:07,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113220186] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:07,060 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:07,060 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:07,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894518888] [2022-03-01 15:30:07,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:07,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:07,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:07,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:07,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:07,061 INFO L87 Difference]: Start difference. First operand 5951 states and 15624 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:07,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:07,937 INFO L93 Difference]: Finished difference Result 7940 states and 20677 transitions. [2022-03-01 15:30:07,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:30:07,937 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:07,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:07,947 INFO L225 Difference]: With dead ends: 7940 [2022-03-01 15:30:07,948 INFO L226 Difference]: Without dead ends: 7677 [2022-03-01 15:30:07,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=490, Invalid=1232, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:30:07,948 INFO L933 BasicCegarLoop]: 290 mSDtfsCounter, 577 mSDsluCounter, 3546 mSDsCounter, 0 mSdLazyCounter, 747 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 577 SdHoareTripleChecker+Valid, 3732 SdHoareTripleChecker+Invalid, 751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 747 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:07,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [577 Valid, 3732 Invalid, 751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 747 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:07,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7677 states. [2022-03-01 15:30:08,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7677 to 5955. [2022-03-01 15:30:08,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5955 states, 5954 states have (on average 2.6252939200537453) internal successors, (15631), 5954 states have internal predecessors, (15631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:08,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5955 states to 5955 states and 15631 transitions. [2022-03-01 15:30:08,025 INFO L78 Accepts]: Start accepts. Automaton has 5955 states and 15631 transitions. Word has length 111 [2022-03-01 15:30:08,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:08,025 INFO L470 AbstractCegarLoop]: Abstraction has 5955 states and 15631 transitions. [2022-03-01 15:30:08,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:08,025 INFO L276 IsEmpty]: Start isEmpty. Operand 5955 states and 15631 transitions. [2022-03-01 15:30:08,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:08,031 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:08,031 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:08,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2022-03-01 15:30:08,031 INFO L402 AbstractCegarLoop]: === Iteration 120 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:08,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:08,031 INFO L85 PathProgramCache]: Analyzing trace with hash -593369987, now seen corresponding path program 41 times [2022-03-01 15:30:08,031 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:08,031 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074289324] [2022-03-01 15:30:08,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:08,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:08,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:08,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:08,208 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:08,209 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074289324] [2022-03-01 15:30:08,209 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074289324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:08,209 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:08,209 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:08,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744437779] [2022-03-01 15:30:08,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:08,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:08,209 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:08,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:08,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:08,210 INFO L87 Difference]: Start difference. First operand 5955 states and 15631 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:09,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:09,008 INFO L93 Difference]: Finished difference Result 7943 states and 20679 transitions. [2022-03-01 15:30:09,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 15:30:09,008 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:09,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:09,019 INFO L225 Difference]: With dead ends: 7943 [2022-03-01 15:30:09,019 INFO L226 Difference]: Without dead ends: 7597 [2022-03-01 15:30:09,019 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=404, Invalid=1156, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 15:30:09,019 INFO L933 BasicCegarLoop]: 298 mSDtfsCounter, 652 mSDsluCounter, 3537 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 652 SdHoareTripleChecker+Valid, 3726 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:09,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [652 Valid, 3726 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:09,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7597 states. [2022-03-01 15:30:09,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7597 to 5875. [2022-03-01 15:30:09,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5875 states, 5874 states have (on average 2.6365338781069116) internal successors, (15487), 5874 states have internal predecessors, (15487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:09,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5875 states to 5875 states and 15487 transitions. [2022-03-01 15:30:09,116 INFO L78 Accepts]: Start accepts. Automaton has 5875 states and 15487 transitions. Word has length 111 [2022-03-01 15:30:09,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:09,116 INFO L470 AbstractCegarLoop]: Abstraction has 5875 states and 15487 transitions. [2022-03-01 15:30:09,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:09,117 INFO L276 IsEmpty]: Start isEmpty. Operand 5875 states and 15487 transitions. [2022-03-01 15:30:09,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:09,122 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:09,122 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:09,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2022-03-01 15:30:09,122 INFO L402 AbstractCegarLoop]: === Iteration 121 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:09,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:09,122 INFO L85 PathProgramCache]: Analyzing trace with hash 373949215, now seen corresponding path program 42 times [2022-03-01 15:30:09,122 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:09,123 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1349169920] [2022-03-01 15:30:09,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:09,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:09,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:09,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:09,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1349169920] [2022-03-01 15:30:09,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1349169920] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:09,311 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:09,311 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:09,311 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831749478] [2022-03-01 15:30:09,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:09,311 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:09,311 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:09,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:09,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:09,312 INFO L87 Difference]: Start difference. First operand 5875 states and 15487 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:10,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:10,399 INFO L93 Difference]: Finished difference Result 8371 states and 21811 transitions. [2022-03-01 15:30:10,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:30:10,399 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:10,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:10,410 INFO L225 Difference]: With dead ends: 8371 [2022-03-01 15:30:10,410 INFO L226 Difference]: Without dead ends: 7469 [2022-03-01 15:30:10,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 309 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=673, Invalid=1679, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 15:30:10,411 INFO L933 BasicCegarLoop]: 359 mSDtfsCounter, 870 mSDsluCounter, 4224 mSDsCounter, 0 mSdLazyCounter, 721 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 870 SdHoareTripleChecker+Valid, 4423 SdHoareTripleChecker+Invalid, 725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:10,411 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [870 Valid, 4423 Invalid, 725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 721 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:10,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7469 states. [2022-03-01 15:30:10,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7469 to 5859. [2022-03-01 15:30:10,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.6369067941276887) internal successors, (15447), 5858 states have internal predecessors, (15447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:10,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15447 transitions. [2022-03-01 15:30:10,494 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15447 transitions. Word has length 111 [2022-03-01 15:30:10,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:10,494 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15447 transitions. [2022-03-01 15:30:10,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:10,495 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15447 transitions. [2022-03-01 15:30:10,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:10,501 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:10,501 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:10,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2022-03-01 15:30:10,501 INFO L402 AbstractCegarLoop]: === Iteration 122 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:10,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:10,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1755951803, now seen corresponding path program 43 times [2022-03-01 15:30:10,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:10,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401209825] [2022-03-01 15:30:10,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:10,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:10,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:10,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:10,675 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:10,675 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401209825] [2022-03-01 15:30:10,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401209825] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:10,675 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:10,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:10,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588417893] [2022-03-01 15:30:10,675 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:10,675 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:10,675 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:10,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:10,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:10,676 INFO L87 Difference]: Start difference. First operand 5859 states and 15447 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:11,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:11,770 INFO L93 Difference]: Finished difference Result 8995 states and 23374 transitions. [2022-03-01 15:30:11,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 15:30:11,770 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:11,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:11,782 INFO L225 Difference]: With dead ends: 8995 [2022-03-01 15:30:11,782 INFO L226 Difference]: Without dead ends: 8140 [2022-03-01 15:30:11,782 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=651, Invalid=1605, Unknown=0, NotChecked=0, Total=2256 [2022-03-01 15:30:11,782 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 948 mSDsluCounter, 4126 mSDsCounter, 0 mSdLazyCounter, 739 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 948 SdHoareTripleChecker+Valid, 4319 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 739 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:11,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [948 Valid, 4319 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 739 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:11,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8140 states. [2022-03-01 15:30:11,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8140 to 5915. [2022-03-01 15:30:11,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5915 states, 5914 states have (on average 2.6291849847818733) internal successors, (15549), 5914 states have internal predecessors, (15549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:11,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5915 states to 5915 states and 15549 transitions. [2022-03-01 15:30:11,859 INFO L78 Accepts]: Start accepts. Automaton has 5915 states and 15549 transitions. Word has length 111 [2022-03-01 15:30:11,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:11,860 INFO L470 AbstractCegarLoop]: Abstraction has 5915 states and 15549 transitions. [2022-03-01 15:30:11,860 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:11,860 INFO L276 IsEmpty]: Start isEmpty. Operand 5915 states and 15549 transitions. [2022-03-01 15:30:11,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:11,865 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:11,865 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:11,865 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2022-03-01 15:30:11,865 INFO L402 AbstractCegarLoop]: === Iteration 123 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:11,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:11,866 INFO L85 PathProgramCache]: Analyzing trace with hash 215374405, now seen corresponding path program 44 times [2022-03-01 15:30:11,866 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:11,866 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933638869] [2022-03-01 15:30:11,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:11,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:11,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:12,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:12,036 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:12,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933638869] [2022-03-01 15:30:12,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933638869] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:12,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:12,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:12,037 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756628147] [2022-03-01 15:30:12,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:12,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:12,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:12,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:12,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:12,037 INFO L87 Difference]: Start difference. First operand 5915 states and 15549 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:13,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:13,062 INFO L93 Difference]: Finished difference Result 8561 states and 22216 transitions. [2022-03-01 15:30:13,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 15:30:13,062 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:13,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:13,074 INFO L225 Difference]: With dead ends: 8561 [2022-03-01 15:30:13,075 INFO L226 Difference]: Without dead ends: 8109 [2022-03-01 15:30:13,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=604, Invalid=1558, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 15:30:13,075 INFO L933 BasicCegarLoop]: 335 mSDtfsCounter, 858 mSDsluCounter, 3984 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 858 SdHoareTripleChecker+Valid, 4164 SdHoareTripleChecker+Invalid, 733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:13,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [858 Valid, 4164 Invalid, 733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:13,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8109 states. [2022-03-01 15:30:13,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8109 to 5919. [2022-03-01 15:30:13,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5919 states, 5918 states have (on average 2.6285907401149036) internal successors, (15556), 5918 states have internal predecessors, (15556), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:13,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5919 states to 5919 states and 15556 transitions. [2022-03-01 15:30:13,172 INFO L78 Accepts]: Start accepts. Automaton has 5919 states and 15556 transitions. Word has length 111 [2022-03-01 15:30:13,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:13,172 INFO L470 AbstractCegarLoop]: Abstraction has 5919 states and 15556 transitions. [2022-03-01 15:30:13,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:13,172 INFO L276 IsEmpty]: Start isEmpty. Operand 5919 states and 15556 transitions. [2022-03-01 15:30:13,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:13,178 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:13,178 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:13,178 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2022-03-01 15:30:13,178 INFO L402 AbstractCegarLoop]: === Iteration 124 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:13,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:13,179 INFO L85 PathProgramCache]: Analyzing trace with hash 804234819, now seen corresponding path program 45 times [2022-03-01 15:30:13,179 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:13,179 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684101672] [2022-03-01 15:30:13,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:13,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:13,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:13,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:13,360 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:13,360 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684101672] [2022-03-01 15:30:13,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684101672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:13,360 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:13,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:13,360 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995434398] [2022-03-01 15:30:13,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:13,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:13,361 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:13,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:13,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:13,361 INFO L87 Difference]: Start difference. First operand 5919 states and 15556 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:14,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:14,308 INFO L93 Difference]: Finished difference Result 8323 states and 21669 transitions. [2022-03-01 15:30:14,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 15:30:14,309 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:14,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:14,321 INFO L225 Difference]: With dead ends: 8323 [2022-03-01 15:30:14,321 INFO L226 Difference]: Without dead ends: 7902 [2022-03-01 15:30:14,321 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 253 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=558, Invalid=1512, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 15:30:14,322 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 768 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 738 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 768 SdHoareTripleChecker+Valid, 3973 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 738 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:14,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [768 Valid, 3973 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 738 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:14,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7902 states. [2022-03-01 15:30:14,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7902 to 5931. [2022-03-01 15:30:14,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5931 states, 5930 states have (on average 2.62681281618887) internal successors, (15577), 5930 states have internal predecessors, (15577), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:14,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 15577 transitions. [2022-03-01 15:30:14,416 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 15577 transitions. Word has length 111 [2022-03-01 15:30:14,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:14,416 INFO L470 AbstractCegarLoop]: Abstraction has 5931 states and 15577 transitions. [2022-03-01 15:30:14,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:14,416 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 15577 transitions. [2022-03-01 15:30:14,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:14,423 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:14,423 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:14,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2022-03-01 15:30:14,423 INFO L402 AbstractCegarLoop]: === Iteration 125 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:14,423 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:14,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1659406583, now seen corresponding path program 46 times [2022-03-01 15:30:14,423 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:14,423 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76828142] [2022-03-01 15:30:14,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:14,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:14,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:14,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:14,607 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:14,607 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76828142] [2022-03-01 15:30:14,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76828142] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:14,608 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:14,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:14,608 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [461502277] [2022-03-01 15:30:14,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:14,608 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:14,608 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:14,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:14,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:14,608 INFO L87 Difference]: Start difference. First operand 5931 states and 15577 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:15,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:15,509 INFO L93 Difference]: Finished difference Result 8168 states and 21262 transitions. [2022-03-01 15:30:15,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 15:30:15,509 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:15,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:15,520 INFO L225 Difference]: With dead ends: 8168 [2022-03-01 15:30:15,520 INFO L226 Difference]: Without dead ends: 7840 [2022-03-01 15:30:15,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=502, Invalid=1390, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 15:30:15,521 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 667 mSDsluCounter, 3996 mSDsCounter, 0 mSdLazyCounter, 782 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 667 SdHoareTripleChecker+Valid, 4168 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:15,521 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [667 Valid, 4168 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 782 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:15,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7840 states. [2022-03-01 15:30:15,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7840 to 5935. [2022-03-01 15:30:15,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 5934 states have (on average 2.626221772834513) internal successors, (15584), 5934 states have internal predecessors, (15584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:15,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 15584 transitions. [2022-03-01 15:30:15,619 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 15584 transitions. Word has length 111 [2022-03-01 15:30:15,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:15,619 INFO L470 AbstractCegarLoop]: Abstraction has 5935 states and 15584 transitions. [2022-03-01 15:30:15,619 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:15,620 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 15584 transitions. [2022-03-01 15:30:15,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:15,626 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:15,626 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:15,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2022-03-01 15:30:15,626 INFO L402 AbstractCegarLoop]: === Iteration 126 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:15,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:15,626 INFO L85 PathProgramCache]: Analyzing trace with hash -1363803747, now seen corresponding path program 47 times [2022-03-01 15:30:15,626 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:15,626 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4278944] [2022-03-01 15:30:15,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:15,627 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:15,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:15,810 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:15,810 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4278944] [2022-03-01 15:30:15,810 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4278944] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:15,810 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:15,810 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:15,810 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14873582] [2022-03-01 15:30:15,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:15,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:15,811 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:15,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:15,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:15,811 INFO L87 Difference]: Start difference. First operand 5935 states and 15584 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:16,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:16,649 INFO L93 Difference]: Finished difference Result 8075 states and 21021 transitions. [2022-03-01 15:30:16,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:30:16,649 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:16,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:16,660 INFO L225 Difference]: With dead ends: 8075 [2022-03-01 15:30:16,660 INFO L226 Difference]: Without dead ends: 7778 [2022-03-01 15:30:16,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=454, Invalid=1268, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:30:16,660 INFO L933 BasicCegarLoop]: 309 mSDtfsCounter, 711 mSDsluCounter, 3617 mSDsCounter, 0 mSdLazyCounter, 734 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 711 SdHoareTripleChecker+Valid, 3798 SdHoareTripleChecker+Invalid, 738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 734 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:16,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [711 Valid, 3798 Invalid, 738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 734 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:16,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7778 states. [2022-03-01 15:30:16,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7778 to 5939. [2022-03-01 15:30:16,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5939 states, 5938 states have (on average 2.6256315257662513) internal successors, (15591), 5938 states have internal predecessors, (15591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:16,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5939 states to 5939 states and 15591 transitions. [2022-03-01 15:30:16,752 INFO L78 Accepts]: Start accepts. Automaton has 5939 states and 15591 transitions. Word has length 111 [2022-03-01 15:30:16,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:16,753 INFO L470 AbstractCegarLoop]: Abstraction has 5939 states and 15591 transitions. [2022-03-01 15:30:16,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:16,753 INFO L276 IsEmpty]: Start isEmpty. Operand 5939 states and 15591 transitions. [2022-03-01 15:30:16,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:16,758 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:16,758 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:16,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2022-03-01 15:30:16,759 INFO L402 AbstractCegarLoop]: === Iteration 127 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:16,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:16,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1781985401, now seen corresponding path program 48 times [2022-03-01 15:30:16,759 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:16,759 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989915356] [2022-03-01 15:30:16,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:16,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:16,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:16,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:16,946 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:16,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989915356] [2022-03-01 15:30:16,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989915356] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:16,946 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:16,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:16,946 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155253451] [2022-03-01 15:30:16,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:16,947 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:16,947 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:16,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:16,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:16,947 INFO L87 Difference]: Start difference. First operand 5939 states and 15591 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:17,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:17,925 INFO L93 Difference]: Finished difference Result 7920 states and 20622 transitions. [2022-03-01 15:30:17,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:30:17,926 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:17,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:17,937 INFO L225 Difference]: With dead ends: 7920 [2022-03-01 15:30:17,937 INFO L226 Difference]: Without dead ends: 7657 [2022-03-01 15:30:17,937 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=496, Invalid=1226, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:30:17,938 INFO L933 BasicCegarLoop]: 294 mSDtfsCounter, 696 mSDsluCounter, 3412 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 696 SdHoareTripleChecker+Valid, 3596 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:17,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [696 Valid, 3596 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:17,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7657 states. [2022-03-01 15:30:18,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7657 to 5943. [2022-03-01 15:30:18,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5943 states, 5942 states have (on average 2.6250420733759676) internal successors, (15598), 5942 states have internal predecessors, (15598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:18,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5943 states to 5943 states and 15598 transitions. [2022-03-01 15:30:18,023 INFO L78 Accepts]: Start accepts. Automaton has 5943 states and 15598 transitions. Word has length 111 [2022-03-01 15:30:18,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:18,023 INFO L470 AbstractCegarLoop]: Abstraction has 5943 states and 15598 transitions. [2022-03-01 15:30:18,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:18,023 INFO L276 IsEmpty]: Start isEmpty. Operand 5943 states and 15598 transitions. [2022-03-01 15:30:18,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:18,029 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:18,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:18,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2022-03-01 15:30:18,030 INFO L402 AbstractCegarLoop]: === Iteration 128 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:18,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:18,030 INFO L85 PathProgramCache]: Analyzing trace with hash -289163967, now seen corresponding path program 49 times [2022-03-01 15:30:18,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:18,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973620740] [2022-03-01 15:30:18,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:18,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:18,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:18,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:18,204 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:18,205 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973620740] [2022-03-01 15:30:18,205 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973620740] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:18,205 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:18,205 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:18,205 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490282458] [2022-03-01 15:30:18,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:18,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:18,205 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:18,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:18,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:18,206 INFO L87 Difference]: Start difference. First operand 5943 states and 15598 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:18,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:18,985 INFO L93 Difference]: Finished difference Result 7923 states and 20624 transitions. [2022-03-01 15:30:18,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 15:30:18,986 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:18,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:18,996 INFO L225 Difference]: With dead ends: 7923 [2022-03-01 15:30:18,997 INFO L226 Difference]: Without dead ends: 7577 [2022-03-01 15:30:18,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=414, Invalid=1146, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 15:30:18,997 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 622 mSDsluCounter, 3649 mSDsCounter, 0 mSdLazyCounter, 744 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 622 SdHoareTripleChecker+Valid, 3829 SdHoareTripleChecker+Invalid, 748 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:18,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [622 Valid, 3829 Invalid, 748 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 744 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:19,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7577 states. [2022-03-01 15:30:19,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7577 to 5863. [2022-03-01 15:30:19,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 5862 states have (on average 2.636301603548277) internal successors, (15454), 5862 states have internal predecessors, (15454), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:19,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 15454 transitions. [2022-03-01 15:30:19,072 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 15454 transitions. Word has length 111 [2022-03-01 15:30:19,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:19,072 INFO L470 AbstractCegarLoop]: Abstraction has 5863 states and 15454 transitions. [2022-03-01 15:30:19,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:19,072 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 15454 transitions. [2022-03-01 15:30:19,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:19,078 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:19,078 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:19,078 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2022-03-01 15:30:19,078 INFO L402 AbstractCegarLoop]: === Iteration 129 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:19,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:19,078 INFO L85 PathProgramCache]: Analyzing trace with hash 678155235, now seen corresponding path program 50 times [2022-03-01 15:30:19,078 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:19,078 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141640420] [2022-03-01 15:30:19,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:19,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:19,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:19,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:19,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141640420] [2022-03-01 15:30:19,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141640420] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:19,246 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:19,246 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:19,247 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585713814] [2022-03-01 15:30:19,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:19,247 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:19,247 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:19,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:19,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:19,247 INFO L87 Difference]: Start difference. First operand 5863 states and 15454 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:20,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:20,354 INFO L93 Difference]: Finished difference Result 9101 states and 23586 transitions. [2022-03-01 15:30:20,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-01 15:30:20,355 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:20,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:20,370 INFO L225 Difference]: With dead ends: 9101 [2022-03-01 15:30:20,370 INFO L226 Difference]: Without dead ends: 8211 [2022-03-01 15:30:20,370 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 306 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=702, Invalid=1650, Unknown=0, NotChecked=0, Total=2352 [2022-03-01 15:30:20,370 INFO L933 BasicCegarLoop]: 353 mSDtfsCounter, 1056 mSDsluCounter, 4101 mSDsCounter, 0 mSdLazyCounter, 720 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1056 SdHoareTripleChecker+Valid, 4300 SdHoareTripleChecker+Invalid, 724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 720 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:20,371 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1056 Valid, 4300 Invalid, 724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 720 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:20,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8211 states. [2022-03-01 15:30:20,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8211 to 5859. [2022-03-01 15:30:20,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.636223967224309) internal successors, (15443), 5858 states have internal predecessors, (15443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:20,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15443 transitions. [2022-03-01 15:30:20,469 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15443 transitions. Word has length 111 [2022-03-01 15:30:20,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:20,469 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15443 transitions. [2022-03-01 15:30:20,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:20,469 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15443 transitions. [2022-03-01 15:30:20,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:20,475 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:20,475 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:20,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2022-03-01 15:30:20,475 INFO L402 AbstractCegarLoop]: === Iteration 130 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:20,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:20,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1860886263, now seen corresponding path program 51 times [2022-03-01 15:30:20,476 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:20,476 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30948675] [2022-03-01 15:30:20,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:20,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:20,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:20,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:20,651 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:20,651 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30948675] [2022-03-01 15:30:20,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30948675] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:20,652 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:20,652 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:20,652 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520204942] [2022-03-01 15:30:20,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:20,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:20,652 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:20,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:20,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:20,652 INFO L87 Difference]: Start difference. First operand 5859 states and 15443 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:21,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:21,696 INFO L93 Difference]: Finished difference Result 8663 states and 22469 transitions. [2022-03-01 15:30:21,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-01 15:30:21,697 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:21,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:21,707 INFO L225 Difference]: With dead ends: 8663 [2022-03-01 15:30:21,707 INFO L226 Difference]: Without dead ends: 7808 [2022-03-01 15:30:21,708 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=678, Invalid=1578, Unknown=0, NotChecked=0, Total=2256 [2022-03-01 15:30:21,708 INFO L933 BasicCegarLoop]: 347 mSDtfsCounter, 1103 mSDsluCounter, 3637 mSDsCounter, 0 mSdLazyCounter, 614 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 3848 SdHoareTripleChecker+Invalid, 618 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 614 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:21,708 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1103 Valid, 3848 Invalid, 618 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 614 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:21,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7808 states. [2022-03-01 15:30:21,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7808 to 5911. [2022-03-01 15:30:21,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5911 states, 5910 states have (on average 2.628426395939086) internal successors, (15534), 5910 states have internal predecessors, (15534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:21,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5911 states to 5911 states and 15534 transitions. [2022-03-01 15:30:21,787 INFO L78 Accepts]: Start accepts. Automaton has 5911 states and 15534 transitions. Word has length 111 [2022-03-01 15:30:21,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:21,787 INFO L470 AbstractCegarLoop]: Abstraction has 5911 states and 15534 transitions. [2022-03-01 15:30:21,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:21,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5911 states and 15534 transitions. [2022-03-01 15:30:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:21,793 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:21,793 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:21,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2022-03-01 15:30:21,793 INFO L402 AbstractCegarLoop]: === Iteration 131 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:21,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:21,793 INFO L85 PathProgramCache]: Analyzing trace with hash 110439945, now seen corresponding path program 52 times [2022-03-01 15:30:21,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:21,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595188017] [2022-03-01 15:30:21,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:21,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:21,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:21,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:21,970 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:21,970 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595188017] [2022-03-01 15:30:21,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595188017] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:21,970 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:21,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:21,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979860387] [2022-03-01 15:30:21,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:21,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:21,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:21,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:21,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:21,971 INFO L87 Difference]: Start difference. First operand 5911 states and 15534 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:23,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:23,023 INFO L93 Difference]: Finished difference Result 8341 states and 21611 transitions. [2022-03-01 15:30:23,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 15:30:23,023 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:23,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:23,034 INFO L225 Difference]: With dead ends: 8341 [2022-03-01 15:30:23,034 INFO L226 Difference]: Without dead ends: 7889 [2022-03-01 15:30:23,034 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=628, Invalid=1534, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 15:30:23,035 INFO L933 BasicCegarLoop]: 346 mSDtfsCounter, 915 mSDsluCounter, 3975 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 915 SdHoareTripleChecker+Valid, 4162 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:23,035 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [915 Valid, 4162 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:23,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7889 states. [2022-03-01 15:30:23,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7889 to 5915. [2022-03-01 15:30:23,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5915 states, 5914 states have (on average 2.6278322624281367) internal successors, (15541), 5914 states have internal predecessors, (15541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:23,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5915 states to 5915 states and 15541 transitions. [2022-03-01 15:30:23,123 INFO L78 Accepts]: Start accepts. Automaton has 5915 states and 15541 transitions. Word has length 111 [2022-03-01 15:30:23,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:23,123 INFO L470 AbstractCegarLoop]: Abstraction has 5915 states and 15541 transitions. [2022-03-01 15:30:23,123 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:23,123 INFO L276 IsEmpty]: Start isEmpty. Operand 5915 states and 15541 transitions. [2022-03-01 15:30:23,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:23,130 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:23,130 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:23,130 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2022-03-01 15:30:23,130 INFO L402 AbstractCegarLoop]: === Iteration 132 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:23,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:23,130 INFO L85 PathProgramCache]: Analyzing trace with hash 699300359, now seen corresponding path program 53 times [2022-03-01 15:30:23,130 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:23,130 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159120137] [2022-03-01 15:30:23,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:23,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:23,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:23,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:23,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:23,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159120137] [2022-03-01 15:30:23,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159120137] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:23,303 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:23,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:23,303 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765674624] [2022-03-01 15:30:23,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:23,304 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:23,304 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:23,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:23,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:23,304 INFO L87 Difference]: Start difference. First operand 5915 states and 15541 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:24,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:24,288 INFO L93 Difference]: Finished difference Result 8115 states and 21093 transitions. [2022-03-01 15:30:24,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 15:30:24,288 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:24,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:24,299 INFO L225 Difference]: With dead ends: 8115 [2022-03-01 15:30:24,300 INFO L226 Difference]: Without dead ends: 7694 [2022-03-01 15:30:24,300 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 242 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=580, Invalid=1490, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 15:30:24,300 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 802 mSDsluCounter, 3792 mSDsCounter, 0 mSdLazyCounter, 707 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 802 SdHoareTripleChecker+Valid, 3979 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 707 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:24,300 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [802 Valid, 3979 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 707 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:24,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7694 states. [2022-03-01 15:30:24,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7694 to 5927. [2022-03-01 15:30:24,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5927 states, 5926 states have (on average 2.626054674316571) internal successors, (15562), 5926 states have internal predecessors, (15562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:24,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5927 states to 5927 states and 15562 transitions. [2022-03-01 15:30:24,389 INFO L78 Accepts]: Start accepts. Automaton has 5927 states and 15562 transitions. Word has length 111 [2022-03-01 15:30:24,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:24,389 INFO L470 AbstractCegarLoop]: Abstraction has 5927 states and 15562 transitions. [2022-03-01 15:30:24,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:24,389 INFO L276 IsEmpty]: Start isEmpty. Operand 5927 states and 15562 transitions. [2022-03-01 15:30:24,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:24,395 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:24,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:24,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2022-03-01 15:30:24,395 INFO L402 AbstractCegarLoop]: === Iteration 133 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:24,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:24,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1764341043, now seen corresponding path program 54 times [2022-03-01 15:30:24,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:24,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745540213] [2022-03-01 15:30:24,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:24,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:24,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:24,566 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:24,566 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:24,566 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745540213] [2022-03-01 15:30:24,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745540213] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:24,566 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:24,566 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:24,566 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389829674] [2022-03-01 15:30:24,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:24,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:24,566 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:24,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:24,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:24,567 INFO L87 Difference]: Start difference. First operand 5927 states and 15562 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:25,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:25,515 INFO L93 Difference]: Finished difference Result 7964 states and 20697 transitions. [2022-03-01 15:30:25,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 15:30:25,515 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:25,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:25,527 INFO L225 Difference]: With dead ends: 7964 [2022-03-01 15:30:25,527 INFO L226 Difference]: Without dead ends: 7636 [2022-03-01 15:30:25,527 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=520, Invalid=1372, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 15:30:25,528 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 701 mSDsluCounter, 3840 mSDsCounter, 0 mSdLazyCounter, 716 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 701 SdHoareTripleChecker+Valid, 4020 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 716 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:25,528 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [701 Valid, 4020 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 716 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:25,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7636 states. [2022-03-01 15:30:25,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7636 to 5931. [2022-03-01 15:30:25,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5931 states, 5930 states have (on average 2.6254637436762227) internal successors, (15569), 5930 states have internal predecessors, (15569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:25,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5931 states to 5931 states and 15569 transitions. [2022-03-01 15:30:25,608 INFO L78 Accepts]: Start accepts. Automaton has 5931 states and 15569 transitions. Word has length 111 [2022-03-01 15:30:25,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:25,608 INFO L470 AbstractCegarLoop]: Abstraction has 5931 states and 15569 transitions. [2022-03-01 15:30:25,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:25,608 INFO L276 IsEmpty]: Start isEmpty. Operand 5931 states and 15569 transitions. [2022-03-01 15:30:25,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:25,614 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:25,614 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:25,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2022-03-01 15:30:25,614 INFO L402 AbstractCegarLoop]: === Iteration 134 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:25,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:25,614 INFO L85 PathProgramCache]: Analyzing trace with hash -1468738207, now seen corresponding path program 55 times [2022-03-01 15:30:25,614 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:25,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383836982] [2022-03-01 15:30:25,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:25,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:25,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:25,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:25,782 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:25,782 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383836982] [2022-03-01 15:30:25,782 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383836982] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:25,782 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:25,782 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:25,782 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005271787] [2022-03-01 15:30:25,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:25,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:25,782 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:25,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:25,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:25,783 INFO L87 Difference]: Start difference. First operand 5931 states and 15569 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:26,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:26,654 INFO L93 Difference]: Finished difference Result 7875 states and 20467 transitions. [2022-03-01 15:30:26,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:30:26,655 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:26,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:26,666 INFO L225 Difference]: With dead ends: 7875 [2022-03-01 15:30:26,666 INFO L226 Difference]: Without dead ends: 7578 [2022-03-01 15:30:26,666 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=468, Invalid=1254, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:30:26,666 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 743 mSDsluCounter, 3628 mSDsCounter, 0 mSdLazyCounter, 700 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 3811 SdHoareTripleChecker+Invalid, 704 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 700 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:26,666 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [743 Valid, 3811 Invalid, 704 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 700 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:26,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7578 states. [2022-03-01 15:30:26,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7578 to 5935. [2022-03-01 15:30:26,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5935 states, 5934 states have (on average 2.6248736097067744) internal successors, (15576), 5934 states have internal predecessors, (15576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:26,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5935 states to 5935 states and 15576 transitions. [2022-03-01 15:30:26,749 INFO L78 Accepts]: Start accepts. Automaton has 5935 states and 15576 transitions. Word has length 111 [2022-03-01 15:30:26,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:26,749 INFO L470 AbstractCegarLoop]: Abstraction has 5935 states and 15576 transitions. [2022-03-01 15:30:26,749 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:26,749 INFO L276 IsEmpty]: Start isEmpty. Operand 5935 states and 15576 transitions. [2022-03-01 15:30:26,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:26,755 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:26,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:26,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2022-03-01 15:30:26,756 INFO L402 AbstractCegarLoop]: === Iteration 135 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:26,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:26,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1886919861, now seen corresponding path program 56 times [2022-03-01 15:30:26,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:26,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207671648] [2022-03-01 15:30:26,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:26,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:26,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:26,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:26,930 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:26,930 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207671648] [2022-03-01 15:30:26,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207671648] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:26,930 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:26,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:26,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085749516] [2022-03-01 15:30:26,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:26,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:26,930 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:26,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:26,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:26,931 INFO L87 Difference]: Start difference. First operand 5935 states and 15576 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:27,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:27,931 INFO L93 Difference]: Finished difference Result 7732 states and 20101 transitions. [2022-03-01 15:30:27,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:30:27,932 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:27,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:27,943 INFO L225 Difference]: With dead ends: 7732 [2022-03-01 15:30:27,943 INFO L226 Difference]: Without dead ends: 7469 [2022-03-01 15:30:27,943 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=502, Invalid=1220, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:30:27,944 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 727 mSDsluCounter, 3619 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 727 SdHoareTripleChecker+Valid, 3797 SdHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:27,944 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [727 Valid, 3797 Invalid, 732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:27,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7469 states. [2022-03-01 15:30:28,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7469 to 5939. [2022-03-01 15:30:28,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5939 states, 5938 states have (on average 2.6242842707982486) internal successors, (15583), 5938 states have internal predecessors, (15583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:28,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5939 states to 5939 states and 15583 transitions. [2022-03-01 15:30:28,048 INFO L78 Accepts]: Start accepts. Automaton has 5939 states and 15583 transitions. Word has length 111 [2022-03-01 15:30:28,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:28,048 INFO L470 AbstractCegarLoop]: Abstraction has 5939 states and 15583 transitions. [2022-03-01 15:30:28,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:28,049 INFO L276 IsEmpty]: Start isEmpty. Operand 5939 states and 15583 transitions. [2022-03-01 15:30:28,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:28,055 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:28,055 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:28,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2022-03-01 15:30:28,056 INFO L402 AbstractCegarLoop]: === Iteration 136 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:28,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:28,056 INFO L85 PathProgramCache]: Analyzing trace with hash -394098427, now seen corresponding path program 57 times [2022-03-01 15:30:28,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:28,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23424584] [2022-03-01 15:30:28,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:28,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:28,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:28,225 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:28,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:28,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23424584] [2022-03-01 15:30:28,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23424584] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:28,225 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:28,225 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:28,225 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074967036] [2022-03-01 15:30:28,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:28,226 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:28,226 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:28,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:28,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:28,226 INFO L87 Difference]: Start difference. First operand 5939 states and 15583 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:29,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:29,029 INFO L93 Difference]: Finished difference Result 7703 states and 20019 transitions. [2022-03-01 15:30:29,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 15:30:29,030 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:29,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:29,041 INFO L225 Difference]: With dead ends: 7703 [2022-03-01 15:30:29,041 INFO L226 Difference]: Without dead ends: 7357 [2022-03-01 15:30:29,041 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=424, Invalid=1136, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 15:30:29,041 INFO L933 BasicCegarLoop]: 310 mSDtfsCounter, 704 mSDsluCounter, 3534 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 704 SdHoareTripleChecker+Valid, 3718 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:29,041 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [704 Valid, 3718 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:29,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7357 states. [2022-03-01 15:30:29,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7357 to 5859. [2022-03-01 15:30:29,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.6273472174803687) internal successors, (15391), 5858 states have internal predecessors, (15391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:29,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15391 transitions. [2022-03-01 15:30:29,128 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15391 transitions. Word has length 111 [2022-03-01 15:30:29,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:29,128 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15391 transitions. [2022-03-01 15:30:29,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:29,129 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15391 transitions. [2022-03-01 15:30:29,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:29,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:29,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:29,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2022-03-01 15:30:29,135 INFO L402 AbstractCegarLoop]: === Iteration 137 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:29,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:29,135 INFO L85 PathProgramCache]: Analyzing trace with hash -538553645, now seen corresponding path program 58 times [2022-03-01 15:30:29,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:29,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644384845] [2022-03-01 15:30:29,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:29,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:29,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:29,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:29,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:29,306 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644384845] [2022-03-01 15:30:29,306 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644384845] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:29,306 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:29,306 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:29,306 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [31857768] [2022-03-01 15:30:29,306 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:29,306 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:29,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:29,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:29,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:29,307 INFO L87 Difference]: Start difference. First operand 5859 states and 15391 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:30,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:30,333 INFO L93 Difference]: Finished difference Result 8177 states and 21168 transitions. [2022-03-01 15:30:30,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 15:30:30,334 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:30,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:30,344 INFO L225 Difference]: With dead ends: 8177 [2022-03-01 15:30:30,344 INFO L226 Difference]: Without dead ends: 7725 [2022-03-01 15:30:30,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 254 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=653, Invalid=1509, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 15:30:30,344 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 1014 mSDsluCounter, 3679 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 3866 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:30,345 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1014 Valid, 3866 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:30,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7725 states. [2022-03-01 15:30:30,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7725 to 5863. [2022-03-01 15:30:30,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 5862 states have (on average 2.626748549982941) internal successors, (15398), 5862 states have internal predecessors, (15398), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:30,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 15398 transitions. [2022-03-01 15:30:30,426 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 15398 transitions. Word has length 111 [2022-03-01 15:30:30,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:30,426 INFO L470 AbstractCegarLoop]: Abstraction has 5863 states and 15398 transitions. [2022-03-01 15:30:30,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:30,426 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 15398 transitions. [2022-03-01 15:30:30,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:30,432 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:30,432 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:30,432 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2022-03-01 15:30:30,433 INFO L402 AbstractCegarLoop]: === Iteration 138 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:30,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:30,433 INFO L85 PathProgramCache]: Analyzing trace with hash 50306769, now seen corresponding path program 59 times [2022-03-01 15:30:30,433 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:30,433 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [702041263] [2022-03-01 15:30:30,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:30,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:30,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:30,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:30,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:30,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [702041263] [2022-03-01 15:30:30,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [702041263] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:30,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:30,614 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:30,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110633902] [2022-03-01 15:30:30,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:30,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:30,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:30,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:30,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:30,615 INFO L87 Difference]: Start difference. First operand 5863 states and 15398 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:31,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:31,624 INFO L93 Difference]: Finished difference Result 8031 states and 20870 transitions. [2022-03-01 15:30:31,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 15:30:31,624 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:31,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:31,635 INFO L225 Difference]: With dead ends: 8031 [2022-03-01 15:30:31,635 INFO L226 Difference]: Without dead ends: 7610 [2022-03-01 15:30:31,635 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=602, Invalid=1468, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 15:30:31,636 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 776 mSDsluCounter, 3955 mSDsCounter, 0 mSdLazyCounter, 687 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 4126 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:31,636 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [776 Valid, 4126 Invalid, 691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 687 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:31,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2022-03-01 15:30:31,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 5875. [2022-03-01 15:30:31,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5875 states, 5874 states have (on average 2.6249574395641813) internal successors, (15419), 5874 states have internal predecessors, (15419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:31,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5875 states to 5875 states and 15419 transitions. [2022-03-01 15:30:31,730 INFO L78 Accepts]: Start accepts. Automaton has 5875 states and 15419 transitions. Word has length 111 [2022-03-01 15:30:31,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:31,730 INFO L470 AbstractCegarLoop]: Abstraction has 5875 states and 15419 transitions. [2022-03-01 15:30:31,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:31,731 INFO L276 IsEmpty]: Start isEmpty. Operand 5875 states and 15419 transitions. [2022-03-01 15:30:31,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:31,736 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:31,736 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:31,736 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2022-03-01 15:30:31,736 INFO L402 AbstractCegarLoop]: === Iteration 139 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:31,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:31,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1881632663, now seen corresponding path program 60 times [2022-03-01 15:30:31,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:31,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750226059] [2022-03-01 15:30:31,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:31,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:31,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:31,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:31,916 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750226059] [2022-03-01 15:30:31,916 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750226059] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:31,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:31,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:31,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666271110] [2022-03-01 15:30:31,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:31,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:31,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:31,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:31,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:31,917 INFO L87 Difference]: Start difference. First operand 5875 states and 15419 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:32,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:32,850 INFO L93 Difference]: Finished difference Result 7880 states and 20474 transitions. [2022-03-01 15:30:32,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 15:30:32,851 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:32,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:32,861 INFO L225 Difference]: With dead ends: 7880 [2022-03-01 15:30:32,861 INFO L226 Difference]: Without dead ends: 7552 [2022-03-01 15:30:32,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=538, Invalid=1354, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 15:30:32,862 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 735 mSDsluCounter, 3955 mSDsCounter, 0 mSdLazyCounter, 705 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 735 SdHoareTripleChecker+Valid, 4122 SdHoareTripleChecker+Invalid, 709 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 705 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:32,862 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [735 Valid, 4122 Invalid, 709 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 705 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:32,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7552 states. [2022-03-01 15:30:32,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7552 to 5879. [2022-03-01 15:30:32,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 5878 states have (on average 2.6243620279006463) internal successors, (15426), 5878 states have internal predecessors, (15426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:32,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 15426 transitions. [2022-03-01 15:30:32,940 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 15426 transitions. Word has length 111 [2022-03-01 15:30:32,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:32,940 INFO L470 AbstractCegarLoop]: Abstraction has 5879 states and 15426 transitions. [2022-03-01 15:30:32,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:32,940 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 15426 transitions. [2022-03-01 15:30:32,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:32,945 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:32,945 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:32,946 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2022-03-01 15:30:32,946 INFO L402 AbstractCegarLoop]: === Iteration 140 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:32,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:32,946 INFO L85 PathProgramCache]: Analyzing trace with hash -2117731797, now seen corresponding path program 61 times [2022-03-01 15:30:32,946 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:32,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341583664] [2022-03-01 15:30:32,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:32,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:32,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:33,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:33,117 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:33,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341583664] [2022-03-01 15:30:33,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341583664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:33,117 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:33,117 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:33,117 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757185897] [2022-03-01 15:30:33,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:33,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:33,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:33,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:33,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:33,118 INFO L87 Difference]: Start difference. First operand 5879 states and 15426 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:33,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:33,983 INFO L93 Difference]: Finished difference Result 7791 states and 20244 transitions. [2022-03-01 15:30:33,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:30:33,983 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:33,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:33,994 INFO L225 Difference]: With dead ends: 7791 [2022-03-01 15:30:33,995 INFO L226 Difference]: Without dead ends: 7494 [2022-03-01 15:30:33,995 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 163 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=482, Invalid=1240, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:30:33,995 INFO L933 BasicCegarLoop]: 316 mSDtfsCounter, 776 mSDsluCounter, 3753 mSDsCounter, 0 mSdLazyCounter, 693 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 776 SdHoareTripleChecker+Valid, 3922 SdHoareTripleChecker+Invalid, 697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 693 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:33,995 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [776 Valid, 3922 Invalid, 697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 693 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:34,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7494 states. [2022-03-01 15:30:34,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7494 to 5883. [2022-03-01 15:30:34,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 5882 states have (on average 2.623767426045563) internal successors, (15433), 5882 states have internal predecessors, (15433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:34,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 15433 transitions. [2022-03-01 15:30:34,069 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 15433 transitions. Word has length 111 [2022-03-01 15:30:34,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:34,069 INFO L470 AbstractCegarLoop]: Abstraction has 5883 states and 15433 transitions. [2022-03-01 15:30:34,069 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:34,069 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 15433 transitions. [2022-03-01 15:30:34,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:34,075 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:34,075 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:34,075 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2022-03-01 15:30:34,075 INFO L402 AbstractCegarLoop]: === Iteration 141 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:34,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:34,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1759053845, now seen corresponding path program 62 times [2022-03-01 15:30:34,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:34,076 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518392931] [2022-03-01 15:30:34,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:34,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:34,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:34,251 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:34,251 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518392931] [2022-03-01 15:30:34,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518392931] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:34,252 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:34,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:34,252 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [738179085] [2022-03-01 15:30:34,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:34,252 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:34,252 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:34,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:34,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:34,252 INFO L87 Difference]: Start difference. First operand 5883 states and 15433 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:35,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:35,261 INFO L93 Difference]: Finished difference Result 7672 states and 19936 transitions. [2022-03-01 15:30:35,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:30:35,261 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:35,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:35,273 INFO L225 Difference]: With dead ends: 7672 [2022-03-01 15:30:35,273 INFO L226 Difference]: Without dead ends: 7409 [2022-03-01 15:30:35,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=508, Invalid=1214, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:30:35,274 INFO L933 BasicCegarLoop]: 300 mSDtfsCounter, 691 mSDsluCounter, 3519 mSDsCounter, 0 mSdLazyCounter, 663 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 691 SdHoareTripleChecker+Valid, 3688 SdHoareTripleChecker+Invalid, 667 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:35,274 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [691 Valid, 3688 Invalid, 667 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 663 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:35,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7409 states. [2022-03-01 15:30:35,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7409 to 5887. [2022-03-01 15:30:35,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5887 states, 5886 states have (on average 2.623173632347944) internal successors, (15440), 5886 states have internal predecessors, (15440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:35,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5887 states to 5887 states and 15440 transitions. [2022-03-01 15:30:35,392 INFO L78 Accepts]: Start accepts. Automaton has 5887 states and 15440 transitions. Word has length 111 [2022-03-01 15:30:35,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:35,393 INFO L470 AbstractCegarLoop]: Abstraction has 5887 states and 15440 transitions. [2022-03-01 15:30:35,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:35,393 INFO L276 IsEmpty]: Start isEmpty. Operand 5887 states and 15440 transitions. [2022-03-01 15:30:35,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:35,398 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:35,398 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:35,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2022-03-01 15:30:35,399 INFO L402 AbstractCegarLoop]: === Iteration 142 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:35,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:35,399 INFO L85 PathProgramCache]: Analyzing trace with hash -1043092017, now seen corresponding path program 63 times [2022-03-01 15:30:35,399 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:35,399 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134247658] [2022-03-01 15:30:35,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:35,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:35,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:35,572 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:35,572 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134247658] [2022-03-01 15:30:35,572 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134247658] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:35,572 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:35,572 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:35,572 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803052680] [2022-03-01 15:30:35,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:35,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:35,572 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:35,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:35,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:35,573 INFO L87 Difference]: Start difference. First operand 5887 states and 15440 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:36,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:36,374 INFO L93 Difference]: Finished difference Result 7643 states and 19854 transitions. [2022-03-01 15:30:36,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 15:30:36,375 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:36,375 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:36,385 INFO L225 Difference]: With dead ends: 7643 [2022-03-01 15:30:36,385 INFO L226 Difference]: Without dead ends: 7349 [2022-03-01 15:30:36,385 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 15:30:36,385 INFO L933 BasicCegarLoop]: 308 mSDtfsCounter, 671 mSDsluCounter, 3797 mSDsCounter, 0 mSdLazyCounter, 701 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 671 SdHoareTripleChecker+Valid, 3962 SdHoareTripleChecker+Invalid, 705 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:36,385 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [671 Valid, 3962 Invalid, 705 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 701 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:36,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7349 states. [2022-03-01 15:30:36,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7349 to 5859. [2022-03-01 15:30:36,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.626664390576989) internal successors, (15387), 5858 states have internal predecessors, (15387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:36,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15387 transitions. [2022-03-01 15:30:36,463 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15387 transitions. Word has length 111 [2022-03-01 15:30:36,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:36,463 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15387 transitions. [2022-03-01 15:30:36,463 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:36,463 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15387 transitions. [2022-03-01 15:30:36,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:36,469 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:36,469 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:36,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2022-03-01 15:30:36,469 INFO L402 AbstractCegarLoop]: === Iteration 143 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:36,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:36,469 INFO L85 PathProgramCache]: Analyzing trace with hash -903029255, now seen corresponding path program 64 times [2022-03-01 15:30:36,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:36,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561912532] [2022-03-01 15:30:36,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:36,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:36,638 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:36,638 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:36,639 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561912532] [2022-03-01 15:30:36,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561912532] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:36,639 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:36,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:36,639 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725756334] [2022-03-01 15:30:36,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:36,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:36,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:36,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:36,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:36,640 INFO L87 Difference]: Start difference. First operand 5859 states and 15387 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:37,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:37,591 INFO L93 Difference]: Finished difference Result 7923 states and 20581 transitions. [2022-03-01 15:30:37,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 15:30:37,591 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:37,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:37,601 INFO L225 Difference]: With dead ends: 7923 [2022-03-01 15:30:37,602 INFO L226 Difference]: Without dead ends: 7502 [2022-03-01 15:30:37,602 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=596, Invalid=1384, Unknown=0, NotChecked=0, Total=1980 [2022-03-01 15:30:37,602 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 785 mSDsluCounter, 3657 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 785 SdHoareTripleChecker+Valid, 3837 SdHoareTripleChecker+Invalid, 623 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:37,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [785 Valid, 3837 Invalid, 623 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:37,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7502 states. [2022-03-01 15:30:37,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7502 to 5871. [2022-03-01 15:30:37,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5871 states, 5870 states have (on average 2.624872231686542) internal successors, (15408), 5870 states have internal predecessors, (15408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:37,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5871 states to 5871 states and 15408 transitions. [2022-03-01 15:30:37,680 INFO L78 Accepts]: Start accepts. Automaton has 5871 states and 15408 transitions. Word has length 111 [2022-03-01 15:30:37,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:37,680 INFO L470 AbstractCegarLoop]: Abstraction has 5871 states and 15408 transitions. [2022-03-01 15:30:37,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:37,680 INFO L276 IsEmpty]: Start isEmpty. Operand 5871 states and 15408 transitions. [2022-03-01 15:30:37,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:37,686 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:37,686 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:37,686 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2022-03-01 15:30:37,686 INFO L402 AbstractCegarLoop]: === Iteration 144 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:37,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:37,688 INFO L85 PathProgramCache]: Analyzing trace with hash 928296639, now seen corresponding path program 65 times [2022-03-01 15:30:37,688 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:37,688 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395053764] [2022-03-01 15:30:37,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:37,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:37,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:37,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:37,865 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:37,865 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395053764] [2022-03-01 15:30:37,865 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395053764] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:37,865 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:37,865 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:37,865 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203269608] [2022-03-01 15:30:37,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:37,866 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:37,866 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:37,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:37,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:37,866 INFO L87 Difference]: Start difference. First operand 5871 states and 15408 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:38,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:38,817 INFO L93 Difference]: Finished difference Result 7820 states and 20317 transitions. [2022-03-01 15:30:38,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 15:30:38,817 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:38,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:38,828 INFO L225 Difference]: With dead ends: 7820 [2022-03-01 15:30:38,828 INFO L226 Difference]: Without dead ends: 7492 [2022-03-01 15:30:38,829 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=553, Invalid=1339, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 15:30:38,829 INFO L933 BasicCegarLoop]: 333 mSDtfsCounter, 747 mSDsluCounter, 3751 mSDsCounter, 0 mSdLazyCounter, 638 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 3928 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 638 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:38,829 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [747 Valid, 3928 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 638 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:38,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7492 states. [2022-03-01 15:30:38,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7492 to 5875. [2022-03-01 15:30:38,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5875 states, 5874 states have (on average 2.624276472591079) internal successors, (15415), 5874 states have internal predecessors, (15415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:38,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5875 states to 5875 states and 15415 transitions. [2022-03-01 15:30:38,916 INFO L78 Accepts]: Start accepts. Automaton has 5875 states and 15415 transitions. Word has length 111 [2022-03-01 15:30:38,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:38,916 INFO L470 AbstractCegarLoop]: Abstraction has 5875 states and 15415 transitions. [2022-03-01 15:30:38,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:38,916 INFO L276 IsEmpty]: Start isEmpty. Operand 5875 states and 15415 transitions. [2022-03-01 15:30:38,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:38,923 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:38,923 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:38,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2022-03-01 15:30:38,923 INFO L402 AbstractCegarLoop]: === Iteration 145 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:38,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:38,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1223899475, now seen corresponding path program 66 times [2022-03-01 15:30:38,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:38,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310036011] [2022-03-01 15:30:38,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:38,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:39,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:39,128 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:39,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310036011] [2022-03-01 15:30:39,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310036011] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:39,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:39,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:39,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632138985] [2022-03-01 15:30:39,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:39,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:39,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:39,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:39,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:39,129 INFO L87 Difference]: Start difference. First operand 5875 states and 15415 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:40,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:40,011 INFO L93 Difference]: Finished difference Result 7731 states and 20087 transitions. [2022-03-01 15:30:40,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:30:40,012 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:40,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:40,023 INFO L225 Difference]: With dead ends: 7731 [2022-03-01 15:30:40,024 INFO L226 Difference]: Without dead ends: 7434 [2022-03-01 15:30:40,024 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=492, Invalid=1230, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:30:40,024 INFO L933 BasicCegarLoop]: 325 mSDtfsCounter, 787 mSDsluCounter, 3793 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 3964 SdHoareTripleChecker+Invalid, 703 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:40,024 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [787 Valid, 3964 Invalid, 703 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:40,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7434 states. [2022-03-01 15:30:40,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7434 to 5879. [2022-03-01 15:30:40,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5879 states, 5878 states have (on average 2.6236815243280027) internal successors, (15422), 5878 states have internal predecessors, (15422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5879 states to 5879 states and 15422 transitions. [2022-03-01 15:30:40,100 INFO L78 Accepts]: Start accepts. Automaton has 5879 states and 15422 transitions. Word has length 111 [2022-03-01 15:30:40,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:40,100 INFO L470 AbstractCegarLoop]: Abstraction has 5879 states and 15422 transitions. [2022-03-01 15:30:40,100 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:40,100 INFO L276 IsEmpty]: Start isEmpty. Operand 5879 states and 15422 transitions. [2022-03-01 15:30:40,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:40,105 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:40,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:40,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2022-03-01 15:30:40,106 INFO L402 AbstractCegarLoop]: === Iteration 146 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:40,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:40,106 INFO L85 PathProgramCache]: Analyzing trace with hash 805717821, now seen corresponding path program 67 times [2022-03-01 15:30:40,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:40,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1829298447] [2022-03-01 15:30:40,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:40,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:40,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:40,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:40,273 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:40,273 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1829298447] [2022-03-01 15:30:40,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1829298447] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:40,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:40,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:40,273 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472824762] [2022-03-01 15:30:40,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:40,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:40,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:40,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:40,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:40,274 INFO L87 Difference]: Start difference. First operand 5879 states and 15422 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:41,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:41,294 INFO L93 Difference]: Finished difference Result 7620 states and 19801 transitions. [2022-03-01 15:30:41,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 15:30:41,294 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:41,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:41,305 INFO L225 Difference]: With dead ends: 7620 [2022-03-01 15:30:41,305 INFO L226 Difference]: Without dead ends: 7357 [2022-03-01 15:30:41,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=527, Invalid=1279, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 15:30:41,306 INFO L933 BasicCegarLoop]: 311 mSDtfsCounter, 700 mSDsluCounter, 3796 mSDsCounter, 0 mSdLazyCounter, 725 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 700 SdHoareTripleChecker+Valid, 3961 SdHoareTripleChecker+Invalid, 729 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 725 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:41,306 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [700 Valid, 3961 Invalid, 729 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 725 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:41,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7357 states. [2022-03-01 15:30:41,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7357 to 5883. [2022-03-01 15:30:41,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5883 states, 5882 states have (on average 2.6230873852431147) internal successors, (15429), 5882 states have internal predecessors, (15429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:41,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5883 states to 5883 states and 15429 transitions. [2022-03-01 15:30:41,390 INFO L78 Accepts]: Start accepts. Automaton has 5883 states and 15429 transitions. Word has length 111 [2022-03-01 15:30:41,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:41,390 INFO L470 AbstractCegarLoop]: Abstraction has 5883 states and 15429 transitions. [2022-03-01 15:30:41,390 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:41,390 INFO L276 IsEmpty]: Start isEmpty. Operand 5883 states and 15429 transitions. [2022-03-01 15:30:41,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:41,397 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:41,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:41,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2022-03-01 15:30:41,397 INFO L402 AbstractCegarLoop]: === Iteration 147 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:41,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:41,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1996428041, now seen corresponding path program 68 times [2022-03-01 15:30:41,397 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:41,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044139711] [2022-03-01 15:30:41,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:41,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:41,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:41,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:41,569 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:41,569 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044139711] [2022-03-01 15:30:41,569 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044139711] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:41,569 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:41,569 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:41,569 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412196516] [2022-03-01 15:30:41,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:41,569 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:41,570 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:41,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:41,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:41,570 INFO L87 Difference]: Start difference. First operand 5883 states and 15429 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:42,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:42,418 INFO L93 Difference]: Finished difference Result 7591 states and 19719 transitions. [2022-03-01 15:30:42,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 15:30:42,418 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:42,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:42,430 INFO L225 Difference]: With dead ends: 7591 [2022-03-01 15:30:42,430 INFO L226 Difference]: Without dead ends: 7301 [2022-03-01 15:30:42,430 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=439, Invalid=1121, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 15:30:42,431 INFO L933 BasicCegarLoop]: 317 mSDtfsCounter, 684 mSDsluCounter, 3845 mSDsCounter, 0 mSdLazyCounter, 714 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 684 SdHoareTripleChecker+Valid, 4011 SdHoareTripleChecker+Invalid, 718 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 714 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:42,431 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [684 Valid, 4011 Invalid, 718 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 714 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:42,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7301 states. [2022-03-01 15:30:42,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7301 to 5859. [2022-03-01 15:30:42,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.624615909866849) internal successors, (15375), 5858 states have internal predecessors, (15375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:42,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15375 transitions. [2022-03-01 15:30:42,510 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15375 transitions. Word has length 111 [2022-03-01 15:30:42,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:42,510 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15375 transitions. [2022-03-01 15:30:42,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:42,510 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15375 transitions. [2022-03-01 15:30:42,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:42,516 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:42,516 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:42,516 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2022-03-01 15:30:42,516 INFO L402 AbstractCegarLoop]: === Iteration 148 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:42,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:42,516 INFO L85 PathProgramCache]: Analyzing trace with hash 302756307, now seen corresponding path program 69 times [2022-03-01 15:30:42,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:42,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044468724] [2022-03-01 15:30:42,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:42,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:42,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:42,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:42,678 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:42,679 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044468724] [2022-03-01 15:30:42,679 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044468724] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:42,679 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:42,679 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:42,679 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335181312] [2022-03-01 15:30:42,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:42,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:42,679 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:42,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:42,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:42,680 INFO L87 Difference]: Start difference. First operand 5859 states and 15375 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:43,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:43,594 INFO L93 Difference]: Finished difference Result 7752 states and 20130 transitions. [2022-03-01 15:30:43,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-01 15:30:43,594 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:43,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:43,604 INFO L225 Difference]: With dead ends: 7752 [2022-03-01 15:30:43,604 INFO L226 Difference]: Without dead ends: 7424 [2022-03-01 15:30:43,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=541, Invalid=1265, Unknown=0, NotChecked=0, Total=1806 [2022-03-01 15:30:43,605 INFO L933 BasicCegarLoop]: 332 mSDtfsCounter, 761 mSDsluCounter, 3691 mSDsCounter, 0 mSdLazyCounter, 601 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 761 SdHoareTripleChecker+Valid, 3871 SdHoareTripleChecker+Invalid, 605 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 601 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:43,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [761 Valid, 3871 Invalid, 605 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 601 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:43,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7424 states. [2022-03-01 15:30:43,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7424 to 5863. [2022-03-01 15:30:43,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 5862 states have (on average 2.6240191061071307) internal successors, (15382), 5862 states have internal predecessors, (15382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:43,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 15382 transitions. [2022-03-01 15:30:43,682 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 15382 transitions. Word has length 111 [2022-03-01 15:30:43,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:43,682 INFO L470 AbstractCegarLoop]: Abstraction has 5863 states and 15382 transitions. [2022-03-01 15:30:43,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:43,682 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 15382 transitions. [2022-03-01 15:30:43,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:43,688 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:43,688 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:43,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2022-03-01 15:30:43,688 INFO L402 AbstractCegarLoop]: === Iteration 149 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:43,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:43,688 INFO L85 PathProgramCache]: Analyzing trace with hash 598359143, now seen corresponding path program 70 times [2022-03-01 15:30:43,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:43,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062816763] [2022-03-01 15:30:43,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:43,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:43,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:43,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:43,863 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:43,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062816763] [2022-03-01 15:30:43,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062816763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:43,863 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:43,863 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:43,863 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314503866] [2022-03-01 15:30:43,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:43,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:43,864 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:43,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:43,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:43,864 INFO L87 Difference]: Start difference. First operand 5863 states and 15382 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:44,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:44,762 INFO L93 Difference]: Finished difference Result 7695 states and 19988 transitions. [2022-03-01 15:30:44,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-01 15:30:44,762 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:44,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:44,772 INFO L225 Difference]: With dead ends: 7695 [2022-03-01 15:30:44,772 INFO L226 Difference]: Without dead ends: 7398 [2022-03-01 15:30:44,772 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=502, Invalid=1220, Unknown=0, NotChecked=0, Total=1722 [2022-03-01 15:30:44,773 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 814 mSDsluCounter, 3783 mSDsCounter, 0 mSdLazyCounter, 645 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 3952 SdHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 645 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:44,773 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [814 Valid, 3952 Invalid, 649 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 645 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:44,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7398 states. [2022-03-01 15:30:44,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7398 to 5867. [2022-03-01 15:30:44,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5867 states, 5866 states have (on average 2.623423116263212) internal successors, (15389), 5866 states have internal predecessors, (15389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:44,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5867 states to 5867 states and 15389 transitions. [2022-03-01 15:30:44,847 INFO L78 Accepts]: Start accepts. Automaton has 5867 states and 15389 transitions. Word has length 111 [2022-03-01 15:30:44,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:44,847 INFO L470 AbstractCegarLoop]: Abstraction has 5867 states and 15389 transitions. [2022-03-01 15:30:44,847 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:44,847 INFO L276 IsEmpty]: Start isEmpty. Operand 5867 states and 15389 transitions. [2022-03-01 15:30:44,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:44,853 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:44,853 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:44,853 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2022-03-01 15:30:44,853 INFO L402 AbstractCegarLoop]: === Iteration 150 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:44,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:44,853 INFO L85 PathProgramCache]: Analyzing trace with hash 180177489, now seen corresponding path program 71 times [2022-03-01 15:30:44,854 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:44,854 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784732640] [2022-03-01 15:30:44,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:44,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:44,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:45,021 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:45,021 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:45,021 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784732640] [2022-03-01 15:30:45,021 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784732640] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:45,021 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:45,021 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:45,021 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769650721] [2022-03-01 15:30:45,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:45,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:45,022 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:45,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:45,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:45,022 INFO L87 Difference]: Start difference. First operand 5867 states and 15389 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:46,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:46,073 INFO L93 Difference]: Finished difference Result 7592 states and 19724 transitions. [2022-03-01 15:30:46,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-01 15:30:46,073 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:46,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:46,084 INFO L225 Difference]: With dead ends: 7592 [2022-03-01 15:30:46,084 INFO L226 Difference]: Without dead ends: 7329 [2022-03-01 15:30:46,084 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=548, Invalid=1344, Unknown=0, NotChecked=0, Total=1892 [2022-03-01 15:30:46,085 INFO L933 BasicCegarLoop]: 318 mSDtfsCounter, 791 mSDsluCounter, 3736 mSDsCounter, 0 mSdLazyCounter, 680 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 791 SdHoareTripleChecker+Valid, 3904 SdHoareTripleChecker+Invalid, 684 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 680 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:46,085 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [791 Valid, 3904 Invalid, 684 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 680 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-01 15:30:46,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7329 states. [2022-03-01 15:30:46,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7329 to 5871. [2022-03-01 15:30:46,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5871 states, 5870 states have (on average 2.6228279386712097) internal successors, (15396), 5870 states have internal predecessors, (15396), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5871 states to 5871 states and 15396 transitions. [2022-03-01 15:30:46,159 INFO L78 Accepts]: Start accepts. Automaton has 5871 states and 15396 transitions. Word has length 111 [2022-03-01 15:30:46,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:46,159 INFO L470 AbstractCegarLoop]: Abstraction has 5871 states and 15396 transitions. [2022-03-01 15:30:46,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:46,159 INFO L276 IsEmpty]: Start isEmpty. Operand 5871 states and 15396 transitions. [2022-03-01 15:30:46,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:46,165 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:46,165 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:46,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2022-03-01 15:30:46,165 INFO L402 AbstractCegarLoop]: === Iteration 151 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:46,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:46,166 INFO L85 PathProgramCache]: Analyzing trace with hash 1672998923, now seen corresponding path program 72 times [2022-03-01 15:30:46,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:46,166 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025594204] [2022-03-01 15:30:46,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:46,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:46,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:46,364 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:46,364 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025594204] [2022-03-01 15:30:46,364 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025594204] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:46,365 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:46,365 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:46,365 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722459371] [2022-03-01 15:30:46,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:46,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:46,365 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:46,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:46,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:46,365 INFO L87 Difference]: Start difference. First operand 5871 states and 15396 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:47,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:47,215 INFO L93 Difference]: Finished difference Result 7563 states and 19642 transitions. [2022-03-01 15:30:47,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 15:30:47,216 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:47,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:47,226 INFO L225 Difference]: With dead ends: 7563 [2022-03-01 15:30:47,226 INFO L226 Difference]: Without dead ends: 7285 [2022-03-01 15:30:47,226 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=444, Invalid=1116, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 15:30:47,226 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 775 mSDsluCounter, 3768 mSDsCounter, 0 mSdLazyCounter, 665 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 775 SdHoareTripleChecker+Valid, 3937 SdHoareTripleChecker+Invalid, 669 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 665 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:47,226 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [775 Valid, 3937 Invalid, 669 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 665 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:47,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7285 states. [2022-03-01 15:30:47,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7285 to 5859. [2022-03-01 15:30:47,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.6239330829634686) internal successors, (15371), 5858 states have internal predecessors, (15371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:47,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15371 transitions. [2022-03-01 15:30:47,302 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15371 transitions. Word has length 111 [2022-03-01 15:30:47,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:47,302 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15371 transitions. [2022-03-01 15:30:47,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:47,302 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15371 transitions. [2022-03-01 15:30:47,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:47,308 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:47,308 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:47,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2022-03-01 15:30:47,308 INFO L402 AbstractCegarLoop]: === Iteration 152 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:47,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:47,309 INFO L85 PathProgramCache]: Analyzing trace with hash 229191161, now seen corresponding path program 73 times [2022-03-01 15:30:47,309 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:47,309 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802164146] [2022-03-01 15:30:47,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:47,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:47,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:47,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:47,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802164146] [2022-03-01 15:30:47,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802164146] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:47,469 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:47,469 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:47,469 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992888108] [2022-03-01 15:30:47,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:47,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:47,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:47,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:47,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:47,470 INFO L87 Difference]: Start difference. First operand 5859 states and 15371 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:48,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:48,299 INFO L93 Difference]: Finished difference Result 7651 states and 19867 transitions. [2022-03-01 15:30:48,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-01 15:30:48,299 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:48,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:48,311 INFO L225 Difference]: With dead ends: 7651 [2022-03-01 15:30:48,311 INFO L226 Difference]: Without dead ends: 7354 [2022-03-01 15:30:48,311 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=484, Invalid=1156, Unknown=0, NotChecked=0, Total=1640 [2022-03-01 15:30:48,311 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 826 mSDsluCounter, 3547 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 826 SdHoareTripleChecker+Valid, 3724 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:48,311 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [826 Valid, 3724 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:48,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7354 states. [2022-03-01 15:30:48,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7354 to 5863. [2022-03-01 15:30:48,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 5862 states have (on average 2.623336745138178) internal successors, (15378), 5862 states have internal predecessors, (15378), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:48,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 15378 transitions. [2022-03-01 15:30:48,391 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 15378 transitions. Word has length 111 [2022-03-01 15:30:48,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:48,391 INFO L470 AbstractCegarLoop]: Abstraction has 5863 states and 15378 transitions. [2022-03-01 15:30:48,391 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:48,391 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 15378 transitions. [2022-03-01 15:30:48,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:48,397 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:48,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:48,397 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2022-03-01 15:30:48,397 INFO L402 AbstractCegarLoop]: === Iteration 153 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:48,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:48,398 INFO L85 PathProgramCache]: Analyzing trace with hash -188990493, now seen corresponding path program 74 times [2022-03-01 15:30:48,398 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:48,398 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2026053706] [2022-03-01 15:30:48,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:48,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:48,562 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:48,562 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2026053706] [2022-03-01 15:30:48,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2026053706] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:48,562 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:48,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:48,562 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922684710] [2022-03-01 15:30:48,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:48,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:48,562 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:48,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:48,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:48,563 INFO L87 Difference]: Start difference. First operand 5863 states and 15378 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:49,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:49,653 INFO L93 Difference]: Finished difference Result 7572 states and 19669 transitions. [2022-03-01 15:30:49,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 15:30:49,653 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:49,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:49,664 INFO L225 Difference]: With dead ends: 7572 [2022-03-01 15:30:49,664 INFO L226 Difference]: Without dead ends: 7309 [2022-03-01 15:30:49,664 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 235 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=571, Invalid=1409, Unknown=0, NotChecked=0, Total=1980 [2022-03-01 15:30:49,664 INFO L933 BasicCegarLoop]: 327 mSDtfsCounter, 741 mSDsluCounter, 3940 mSDsCounter, 0 mSdLazyCounter, 671 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 741 SdHoareTripleChecker+Valid, 4106 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 671 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:49,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [741 Valid, 4106 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 671 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:49,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7309 states. [2022-03-01 15:30:49,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7309 to 5867. [2022-03-01 15:30:49,735 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5867 states, 5866 states have (on average 2.6227412205932494) internal successors, (15385), 5866 states have internal predecessors, (15385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:49,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5867 states to 5867 states and 15385 transitions. [2022-03-01 15:30:49,744 INFO L78 Accepts]: Start accepts. Automaton has 5867 states and 15385 transitions. Word has length 111 [2022-03-01 15:30:49,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:49,745 INFO L470 AbstractCegarLoop]: Abstraction has 5867 states and 15385 transitions. [2022-03-01 15:30:49,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:49,745 INFO L276 IsEmpty]: Start isEmpty. Operand 5867 states and 15385 transitions. [2022-03-01 15:30:49,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:49,750 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:49,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:49,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2022-03-01 15:30:49,751 INFO L402 AbstractCegarLoop]: === Iteration 154 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:49,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:49,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1303830941, now seen corresponding path program 75 times [2022-03-01 15:30:49,751 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:49,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747156140] [2022-03-01 15:30:49,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:49,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:49,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:49,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:49,916 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:49,917 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747156140] [2022-03-01 15:30:49,917 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747156140] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:49,917 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:49,917 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:49,917 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631601731] [2022-03-01 15:30:49,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:49,917 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:49,917 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:49,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:49,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:49,918 INFO L87 Difference]: Start difference. First operand 5867 states and 15385 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:50,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:50,774 INFO L93 Difference]: Finished difference Result 7543 states and 19587 transitions. [2022-03-01 15:30:50,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 15:30:50,774 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:50,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:50,784 INFO L225 Difference]: With dead ends: 7543 [2022-03-01 15:30:50,784 INFO L226 Difference]: Without dead ends: 7269 [2022-03-01 15:30:50,785 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=449, Invalid=1111, Unknown=0, NotChecked=0, Total=1560 [2022-03-01 15:30:50,785 INFO L933 BasicCegarLoop]: 324 mSDtfsCounter, 808 mSDsluCounter, 3528 mSDsCounter, 0 mSdLazyCounter, 563 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 808 SdHoareTripleChecker+Valid, 3707 SdHoareTripleChecker+Invalid, 567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:50,785 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [808 Valid, 3707 Invalid, 567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 563 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:50,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7269 states. [2022-03-01 15:30:50,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7269 to 5859. [2022-03-01 15:30:50,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.6232502560600888) internal successors, (15367), 5858 states have internal predecessors, (15367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:50,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15367 transitions. [2022-03-01 15:30:50,867 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15367 transitions. Word has length 111 [2022-03-01 15:30:50,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:50,867 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15367 transitions. [2022-03-01 15:30:50,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:50,867 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15367 transitions. [2022-03-01 15:30:50,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:50,874 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:50,874 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:50,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2022-03-01 15:30:50,874 INFO L402 AbstractCegarLoop]: === Iteration 155 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:50,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:50,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1622927769, now seen corresponding path program 76 times [2022-03-01 15:30:50,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:50,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180699190] [2022-03-01 15:30:50,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:50,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:50,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:51,061 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:51,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:51,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180699190] [2022-03-01 15:30:51,061 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180699190] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:51,061 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:51,062 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:51,062 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367280201] [2022-03-01 15:30:51,062 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:51,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:51,062 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:51,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:51,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=271, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:51,062 INFO L87 Difference]: Start difference. First operand 5859 states and 15367 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:52,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:52,151 INFO L93 Difference]: Finished difference Result 7552 states and 19614 transitions. [2022-03-01 15:30:52,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-01 15:30:52,151 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:52,152 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:52,161 INFO L225 Difference]: With dead ends: 7552 [2022-03-01 15:30:52,161 INFO L226 Difference]: Without dead ends: 7289 [2022-03-01 15:30:52,162 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=596, Invalid=1474, Unknown=0, NotChecked=0, Total=2070 [2022-03-01 15:30:52,162 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 845 mSDsluCounter, 3571 mSDsCounter, 0 mSdLazyCounter, 550 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 845 SdHoareTripleChecker+Valid, 3751 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:52,162 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [845 Valid, 3751 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 550 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:52,170 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7289 states. [2022-03-01 15:30:52,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7289 to 5863. [2022-03-01 15:30:52,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5863 states, 5862 states have (on average 2.6226543841692256) internal successors, (15374), 5862 states have internal predecessors, (15374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:52,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5863 states to 5863 states and 15374 transitions. [2022-03-01 15:30:52,233 INFO L78 Accepts]: Start accepts. Automaton has 5863 states and 15374 transitions. Word has length 111 [2022-03-01 15:30:52,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:52,234 INFO L470 AbstractCegarLoop]: Abstraction has 5863 states and 15374 transitions. [2022-03-01 15:30:52,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:52,234 INFO L276 IsEmpty]: Start isEmpty. Operand 5863 states and 15374 transitions. [2022-03-01 15:30:52,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:52,239 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:52,239 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:52,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2022-03-01 15:30:52,239 INFO L402 AbstractCegarLoop]: === Iteration 156 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:52,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:52,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1179218093, now seen corresponding path program 77 times [2022-03-01 15:30:52,240 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:52,240 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944820173] [2022-03-01 15:30:52,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:52,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:52,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:52,398 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:52,398 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:52,398 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944820173] [2022-03-01 15:30:52,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944820173] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:52,398 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:52,398 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:52,398 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960945003] [2022-03-01 15:30:52,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:52,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:52,399 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:52,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:52,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:52,399 INFO L87 Difference]: Start difference. First operand 5863 states and 15374 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:53,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:53,130 INFO L93 Difference]: Finished difference Result 7550 states and 19600 transitions. [2022-03-01 15:30:53,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-01 15:30:53,131 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:53,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:53,141 INFO L225 Difference]: With dead ends: 7550 [2022-03-01 15:30:53,141 INFO L226 Difference]: Without dead ends: 7280 [2022-03-01 15:30:53,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=425, Invalid=1057, Unknown=0, NotChecked=0, Total=1482 [2022-03-01 15:30:53,141 INFO L933 BasicCegarLoop]: 323 mSDtfsCounter, 829 mSDsluCounter, 3250 mSDsCounter, 0 mSdLazyCounter, 471 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 829 SdHoareTripleChecker+Valid, 3439 SdHoareTripleChecker+Invalid, 475 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 471 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:53,141 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [829 Valid, 3439 Invalid, 475 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 471 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:53,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7280 states. [2022-03-01 15:30:53,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7280 to 5859. [2022-03-01 15:30:53,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5859 states, 5858 states have (on average 2.622567429156709) internal successors, (15363), 5858 states have internal predecessors, (15363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:53,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5859 states to 5859 states and 15363 transitions. [2022-03-01 15:30:53,212 INFO L78 Accepts]: Start accepts. Automaton has 5859 states and 15363 transitions. Word has length 111 [2022-03-01 15:30:53,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:53,212 INFO L470 AbstractCegarLoop]: Abstraction has 5859 states and 15363 transitions. [2022-03-01 15:30:53,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:53,213 INFO L276 IsEmpty]: Start isEmpty. Operand 5859 states and 15363 transitions. [2022-03-01 15:30:53,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2022-03-01 15:30:53,218 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:53,218 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:53,218 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2022-03-01 15:30:53,218 INFO L402 AbstractCegarLoop]: === Iteration 157 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:53,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:53,218 INFO L85 PathProgramCache]: Analyzing trace with hash -781391879, now seen corresponding path program 78 times [2022-03-01 15:30:53,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:53,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125071194] [2022-03-01 15:30:53,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:53,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:53,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:53,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:53,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:53,379 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125071194] [2022-03-01 15:30:53,379 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125071194] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:53,379 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:53,379 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2022-03-01 15:30:53,379 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498900995] [2022-03-01 15:30:53,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:53,380 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-01 15:30:53,380 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:53,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-01 15:30:53,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306 [2022-03-01 15:30:53,380 INFO L87 Difference]: Start difference. First operand 5859 states and 15363 transitions. Second operand has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:54,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:54,523 INFO L93 Difference]: Finished difference Result 7508 states and 19493 transitions. [2022-03-01 15:30:54,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-03-01 15:30:54,524 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 111 [2022-03-01 15:30:54,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:54,532 INFO L225 Difference]: With dead ends: 7508 [2022-03-01 15:30:54,532 INFO L226 Difference]: Without dead ends: 7109 [2022-03-01 15:30:54,533 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 221 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=658, Invalid=1504, Unknown=0, NotChecked=0, Total=2162 [2022-03-01 15:30:54,533 INFO L933 BasicCegarLoop]: 326 mSDtfsCounter, 1030 mSDsluCounter, 3586 mSDsCounter, 0 mSdLazyCounter, 542 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1030 SdHoareTripleChecker+Valid, 3763 SdHoareTripleChecker+Invalid, 557 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 542 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:54,533 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1030 Valid, 3763 Invalid, 557 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 542 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:30:54,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7109 states. [2022-03-01 15:30:54,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7109 to 5723. [2022-03-01 15:30:54,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5723 states, 5722 states have (on average 2.638413142257952) internal successors, (15097), 5722 states have internal predecessors, (15097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:54,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5723 states to 5723 states and 15097 transitions. [2022-03-01 15:30:54,601 INFO L78 Accepts]: Start accepts. Automaton has 5723 states and 15097 transitions. Word has length 111 [2022-03-01 15:30:54,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:54,602 INFO L470 AbstractCegarLoop]: Abstraction has 5723 states and 15097 transitions. [2022-03-01 15:30:54,602 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.166666666666667) internal successors, (111), 18 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:54,602 INFO L276 IsEmpty]: Start isEmpty. Operand 5723 states and 15097 transitions. [2022-03-01 15:30:54,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2022-03-01 15:30:54,607 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:54,607 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:54,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2022-03-01 15:30:54,607 INFO L402 AbstractCegarLoop]: === Iteration 158 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:54,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:54,608 INFO L85 PathProgramCache]: Analyzing trace with hash -1010156423, now seen corresponding path program 1 times [2022-03-01 15:30:54,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:54,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1018078715] [2022-03-01 15:30:54,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:54,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:54,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:54,621 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:54,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1018078715] [2022-03-01 15:30:54,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1018078715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:54,621 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:54,621 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-01 15:30:54,622 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569765427] [2022-03-01 15:30:54,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:54,622 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 15:30:54,622 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:54,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 15:30:54,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:30:54,622 INFO L87 Difference]: Start difference. First operand 5723 states and 15097 transitions. Second operand has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:54,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:30:54,645 INFO L93 Difference]: Finished difference Result 5669 states and 14897 transitions. [2022-03-01 15:30:54,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 15:30:54,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 113 [2022-03-01 15:30:54,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:30:54,651 INFO L225 Difference]: With dead ends: 5669 [2022-03-01 15:30:54,651 INFO L226 Difference]: Without dead ends: 5563 [2022-03-01 15:30:54,651 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 15:30:54,651 INFO L933 BasicCegarLoop]: 144 mSDtfsCounter, 11 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-01 15:30:54,652 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 271 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-01 15:30:54,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5563 states. [2022-03-01 15:30:54,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5563 to 5563. [2022-03-01 15:30:54,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5563 states, 5562 states have (on average 2.6361021215390146) internal successors, (14662), 5562 states have internal predecessors, (14662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:54,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5563 states to 5563 states and 14662 transitions. [2022-03-01 15:30:54,712 INFO L78 Accepts]: Start accepts. Automaton has 5563 states and 14662 transitions. Word has length 113 [2022-03-01 15:30:54,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:30:54,712 INFO L470 AbstractCegarLoop]: Abstraction has 5563 states and 14662 transitions. [2022-03-01 15:30:54,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.666666666666664) internal successors, (113), 3 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:30:54,712 INFO L276 IsEmpty]: Start isEmpty. Operand 5563 states and 14662 transitions. [2022-03-01 15:30:54,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:30:54,717 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:30:54,717 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:30:54,717 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2022-03-01 15:30:54,718 INFO L402 AbstractCegarLoop]: === Iteration 159 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:30:54,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:30:54,718 INFO L85 PathProgramCache]: Analyzing trace with hash -1862970063, now seen corresponding path program 1 times [2022-03-01 15:30:54,718 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:30:54,718 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22089763] [2022-03-01 15:30:54,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:30:54,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:30:54,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:30:55,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:30:55,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:30:55,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22089763] [2022-03-01 15:30:55,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22089763] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:30:55,261 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:30:55,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:30:55,261 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449126804] [2022-03-01 15:30:55,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:30:55,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:30:55,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:30:55,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:30:55,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:30:55,262 INFO L87 Difference]: Start difference. First operand 5563 states and 14662 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:04,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:04,404 INFO L93 Difference]: Finished difference Result 6672 states and 17462 transitions. [2022-03-01 15:31:04,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-03-01 15:31:04,404 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:31:04,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:04,411 INFO L225 Difference]: With dead ends: 6672 [2022-03-01 15:31:04,411 INFO L226 Difference]: Without dead ends: 5502 [2022-03-01 15:31:04,411 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2814 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=3221, Invalid=8769, Unknown=0, NotChecked=0, Total=11990 [2022-03-01 15:31:04,411 INFO L933 BasicCegarLoop]: 625 mSDtfsCounter, 1916 mSDsluCounter, 11103 mSDsCounter, 0 mSdLazyCounter, 2049 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1916 SdHoareTripleChecker+Valid, 11415 SdHoareTripleChecker+Invalid, 2052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:04,412 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1916 Valid, 11415 Invalid, 2052 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2049 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:31:04,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5502 states. [2022-03-01 15:31:04,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5502 to 5366. [2022-03-01 15:31:04,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5366 states, 5365 states have (on average 2.639888164026095) internal successors, (14163), 5365 states have internal predecessors, (14163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:04,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5366 states to 5366 states and 14163 transitions. [2022-03-01 15:31:04,468 INFO L78 Accepts]: Start accepts. Automaton has 5366 states and 14163 transitions. Word has length 137 [2022-03-01 15:31:04,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:04,468 INFO L470 AbstractCegarLoop]: Abstraction has 5366 states and 14163 transitions. [2022-03-01 15:31:04,468 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:04,468 INFO L276 IsEmpty]: Start isEmpty. Operand 5366 states and 14163 transitions. [2022-03-01 15:31:04,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:31:04,473 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:04,473 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:31:04,474 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2022-03-01 15:31:04,474 INFO L402 AbstractCegarLoop]: === Iteration 160 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:04,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:04,474 INFO L85 PathProgramCache]: Analyzing trace with hash 298409985, now seen corresponding path program 2 times [2022-03-01 15:31:04,474 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:04,474 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579913308] [2022-03-01 15:31:04,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:04,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:04,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:04,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:04,949 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:04,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579913308] [2022-03-01 15:31:04,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579913308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:04,949 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:04,949 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:31:04,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004780978] [2022-03-01 15:31:04,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:04,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:31:04,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:04,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:31:04,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:31:04,950 INFO L87 Difference]: Start difference. First operand 5366 states and 14163 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:14,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:14,261 INFO L93 Difference]: Finished difference Result 7488 states and 19502 transitions. [2022-03-01 15:31:14,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-01 15:31:14,261 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:31:14,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:14,269 INFO L225 Difference]: With dead ends: 7488 [2022-03-01 15:31:14,269 INFO L226 Difference]: Without dead ends: 6515 [2022-03-01 15:31:14,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2563 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=2900, Invalid=8230, Unknown=0, NotChecked=0, Total=11130 [2022-03-01 15:31:14,270 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 2043 mSDsluCounter, 10950 mSDsCounter, 0 mSdLazyCounter, 2082 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2043 SdHoareTripleChecker+Valid, 11267 SdHoareTripleChecker+Invalid, 2085 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:14,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2043 Valid, 11267 Invalid, 2085 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2082 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:31:14,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6515 states. [2022-03-01 15:31:14,318 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6515 to 5378. [2022-03-01 15:31:14,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5378 states, 5377 states have (on average 2.637902175934536) internal successors, (14184), 5377 states have internal predecessors, (14184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:14,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5378 states to 5378 states and 14184 transitions. [2022-03-01 15:31:14,330 INFO L78 Accepts]: Start accepts. Automaton has 5378 states and 14184 transitions. Word has length 137 [2022-03-01 15:31:14,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:14,330 INFO L470 AbstractCegarLoop]: Abstraction has 5378 states and 14184 transitions. [2022-03-01 15:31:14,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:14,331 INFO L276 IsEmpty]: Start isEmpty. Operand 5378 states and 14184 transitions. [2022-03-01 15:31:14,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:31:14,336 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:14,336 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:31:14,336 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2022-03-01 15:31:14,336 INFO L402 AbstractCegarLoop]: === Iteration 161 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:14,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:14,336 INFO L85 PathProgramCache]: Analyzing trace with hash 69628501, now seen corresponding path program 3 times [2022-03-01 15:31:14,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:14,337 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210574850] [2022-03-01 15:31:14,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:14,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:14,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:14,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:14,875 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:14,875 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210574850] [2022-03-01 15:31:14,875 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210574850] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:14,875 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:14,875 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:31:14,875 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132651397] [2022-03-01 15:31:14,875 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:14,875 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:31:14,875 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:14,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:31:14,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:31:14,876 INFO L87 Difference]: Start difference. First operand 5378 states and 14184 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:31,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:31,972 INFO L93 Difference]: Finished difference Result 7042 states and 18372 transitions. [2022-03-01 15:31:31,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-01 15:31:31,972 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:31:31,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:31,980 INFO L225 Difference]: With dead ends: 7042 [2022-03-01 15:31:31,980 INFO L226 Difference]: Without dead ends: 6193 [2022-03-01 15:31:31,980 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2182 ImplicationChecksByTransitivity, 16.4s TimeCoverageRelationStatistics Valid=2321, Invalid=7185, Unknown=0, NotChecked=0, Total=9506 [2022-03-01 15:31:31,980 INFO L933 BasicCegarLoop]: 595 mSDtfsCounter, 1531 mSDsluCounter, 9253 mSDsCounter, 0 mSdLazyCounter, 1921 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1531 SdHoareTripleChecker+Valid, 9619 SdHoareTripleChecker+Invalid, 1924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1921 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:31,981 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1531 Valid, 9619 Invalid, 1924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1921 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:31:31,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6193 states. [2022-03-01 15:31:32,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6193 to 5434. [2022-03-01 15:31:32,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5433 states have (on average 2.6294864715626725) internal successors, (14286), 5433 states have internal predecessors, (14286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:32,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14286 transitions. [2022-03-01 15:31:32,037 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14286 transitions. Word has length 137 [2022-03-01 15:31:32,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:32,038 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 14286 transitions. [2022-03-01 15:31:32,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:32,038 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14286 transitions. [2022-03-01 15:31:32,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:31:32,043 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:32,043 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:31:32,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable160 [2022-03-01 15:31:32,043 INFO L402 AbstractCegarLoop]: === Iteration 162 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:32,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:32,043 INFO L85 PathProgramCache]: Analyzing trace with hash 2040954709, now seen corresponding path program 4 times [2022-03-01 15:31:32,043 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:32,044 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24319367] [2022-03-01 15:31:32,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:32,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:32,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:32,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:32,551 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:32,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24319367] [2022-03-01 15:31:32,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24319367] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:32,551 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:32,551 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:31:32,551 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501293012] [2022-03-01 15:31:32,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:32,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:31:32,552 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:32,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:31:32,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:31:32,552 INFO L87 Difference]: Start difference. First operand 5434 states and 14286 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:37,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:37,733 INFO L93 Difference]: Finished difference Result 6608 states and 17214 transitions. [2022-03-01 15:31:37,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-01 15:31:37,733 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:31:37,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:37,742 INFO L225 Difference]: With dead ends: 6608 [2022-03-01 15:31:37,742 INFO L226 Difference]: Without dead ends: 6162 [2022-03-01 15:31:37,743 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1986 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=2057, Invalid=6685, Unknown=0, NotChecked=0, Total=8742 [2022-03-01 15:31:37,744 INFO L933 BasicCegarLoop]: 577 mSDtfsCounter, 1381 mSDsluCounter, 9783 mSDsCounter, 0 mSdLazyCounter, 1945 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1381 SdHoareTripleChecker+Valid, 10115 SdHoareTripleChecker+Invalid, 1948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1945 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:37,744 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1381 Valid, 10115 Invalid, 1948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1945 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:31:37,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6162 states. [2022-03-01 15:31:37,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6162 to 5438. [2022-03-01 15:31:37,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 2.6288394335111276) internal successors, (14293), 5437 states have internal predecessors, (14293), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 14293 transitions. [2022-03-01 15:31:37,818 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 14293 transitions. Word has length 137 [2022-03-01 15:31:37,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:37,819 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 14293 transitions. [2022-03-01 15:31:37,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:37,819 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 14293 transitions. [2022-03-01 15:31:37,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:31:37,824 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:37,824 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:31:37,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable161 [2022-03-01 15:31:37,824 INFO L402 AbstractCegarLoop]: === Iteration 163 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:37,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:37,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1665152173, now seen corresponding path program 5 times [2022-03-01 15:31:37,825 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:37,825 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725832796] [2022-03-01 15:31:37,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:37,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:37,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:38,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:38,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:38,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725832796] [2022-03-01 15:31:38,375 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725832796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:38,375 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:38,375 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:31:38,375 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642265928] [2022-03-01 15:31:38,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:38,376 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:31:38,376 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:38,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:31:38,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:31:38,376 INFO L87 Difference]: Start difference. First operand 5438 states and 14293 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:43,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:43,332 INFO L93 Difference]: Finished difference Result 6370 states and 16667 transitions. [2022-03-01 15:31:43,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-01 15:31:43,332 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:31:43,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:43,339 INFO L225 Difference]: With dead ends: 6370 [2022-03-01 15:31:43,339 INFO L226 Difference]: Without dead ends: 5955 [2022-03-01 15:31:43,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1701 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1807, Invalid=6203, Unknown=0, NotChecked=0, Total=8010 [2022-03-01 15:31:43,340 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 1134 mSDsluCounter, 10108 mSDsCounter, 0 mSdLazyCounter, 2050 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1134 SdHoareTripleChecker+Valid, 10430 SdHoareTripleChecker+Invalid, 2053 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:43,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1134 Valid, 10430 Invalid, 2053 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2050 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:31:43,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5955 states. [2022-03-01 15:31:43,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5955 to 5450. [2022-03-01 15:31:43,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5449 states have (on average 2.6269040190860706) internal successors, (14314), 5449 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:43,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14314 transitions. [2022-03-01 15:31:43,399 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14314 transitions. Word has length 137 [2022-03-01 15:31:43,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:43,399 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 14314 transitions. [2022-03-01 15:31:43,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:43,399 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14314 transitions. [2022-03-01 15:31:43,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:31:43,404 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:43,404 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:31:43,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable162 [2022-03-01 15:31:43,404 INFO L402 AbstractCegarLoop]: === Iteration 164 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:43,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:43,405 INFO L85 PathProgramCache]: Analyzing trace with hash 166173721, now seen corresponding path program 6 times [2022-03-01 15:31:43,405 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:43,405 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418376942] [2022-03-01 15:31:43,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:43,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:43,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:43,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:43,872 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:43,872 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418376942] [2022-03-01 15:31:43,873 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418376942] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:43,873 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:43,873 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:31:43,873 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093935158] [2022-03-01 15:31:43,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:43,873 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:31:43,873 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:43,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:31:43,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:31:43,874 INFO L87 Difference]: Start difference. First operand 5450 states and 14314 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:48,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:48,945 INFO L93 Difference]: Finished difference Result 6215 states and 16260 transitions. [2022-03-01 15:31:48,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-01 15:31:48,945 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:31:48,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:48,952 INFO L225 Difference]: With dead ends: 6215 [2022-03-01 15:31:48,953 INFO L226 Difference]: Without dead ends: 5893 [2022-03-01 15:31:48,953 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1296 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1478, Invalid=5164, Unknown=0, NotChecked=0, Total=6642 [2022-03-01 15:31:48,953 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 1117 mSDsluCounter, 9531 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1117 SdHoareTripleChecker+Valid, 9874 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:48,953 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1117 Valid, 9874 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:31:48,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2022-03-01 15:31:49,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 5454. [2022-03-01 15:31:49,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6262607738859343) internal successors, (14321), 5453 states have internal predecessors, (14321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:49,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14321 transitions. [2022-03-01 15:31:49,020 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14321 transitions. Word has length 137 [2022-03-01 15:31:49,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:49,020 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14321 transitions. [2022-03-01 15:31:49,020 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:49,020 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14321 transitions. [2022-03-01 15:31:49,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:31:49,026 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:49,026 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:31:49,026 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable163 [2022-03-01 15:31:49,026 INFO L402 AbstractCegarLoop]: === Iteration 165 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:49,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:49,026 INFO L85 PathProgramCache]: Analyzing trace with hash 461776557, now seen corresponding path program 7 times [2022-03-01 15:31:49,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:49,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [990287837] [2022-03-01 15:31:49,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:49,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:49,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:49,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:49,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:49,701 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [990287837] [2022-03-01 15:31:49,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [990287837] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:49,701 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:49,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:31:49,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367906295] [2022-03-01 15:31:49,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:49,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:31:49,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:49,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:31:49,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:31:49,702 INFO L87 Difference]: Start difference. First operand 5454 states and 14321 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:54,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:54,242 INFO L93 Difference]: Finished difference Result 6122 states and 16019 transitions. [2022-03-01 15:31:54,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 15:31:54,243 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:31:54,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:54,249 INFO L225 Difference]: With dead ends: 6122 [2022-03-01 15:31:54,249 INFO L226 Difference]: Without dead ends: 5831 [2022-03-01 15:31:54,250 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1203, Invalid=4199, Unknown=0, NotChecked=0, Total=5402 [2022-03-01 15:31:54,250 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1032 mSDsluCounter, 9113 mSDsCounter, 0 mSdLazyCounter, 1853 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 9473 SdHoareTripleChecker+Invalid, 1856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1853 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:54,250 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 9473 Invalid, 1856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1853 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:31:54,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5831 states. [2022-03-01 15:31:54,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5831 to 5458. [2022-03-01 15:31:54,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6256184716877407) internal successors, (14328), 5457 states have internal predecessors, (14328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:54,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14328 transitions. [2022-03-01 15:31:54,308 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14328 transitions. Word has length 137 [2022-03-01 15:31:54,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:54,309 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14328 transitions. [2022-03-01 15:31:54,309 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:54,309 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14328 transitions. [2022-03-01 15:31:54,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:31:54,314 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:54,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:31:54,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable164 [2022-03-01 15:31:54,314 INFO L402 AbstractCegarLoop]: === Iteration 166 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:54,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:54,315 INFO L85 PathProgramCache]: Analyzing trace with hash 43594903, now seen corresponding path program 8 times [2022-03-01 15:31:54,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:54,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123704026] [2022-03-01 15:31:54,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:54,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:54,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:54,877 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:54,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123704026] [2022-03-01 15:31:54,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123704026] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:54,878 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:54,878 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:31:54,878 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313550130] [2022-03-01 15:31:54,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:54,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:31:54,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:54,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:31:54,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:31:54,879 INFO L87 Difference]: Start difference. First operand 5458 states and 14328 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:58,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:31:58,517 INFO L93 Difference]: Finished difference Result 5967 states and 15620 transitions. [2022-03-01 15:31:58,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:31:58,518 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:31:58,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:31:58,524 INFO L225 Difference]: With dead ends: 5967 [2022-03-01 15:31:58,524 INFO L226 Difference]: Without dead ends: 5710 [2022-03-01 15:31:58,524 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=953, Invalid=2829, Unknown=0, NotChecked=0, Total=3782 [2022-03-01 15:31:58,525 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 1024 mSDsluCounter, 9613 mSDsCounter, 0 mSdLazyCounter, 1897 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1024 SdHoareTripleChecker+Valid, 9958 SdHoareTripleChecker+Invalid, 1900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1897 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:31:58,525 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1024 Valid, 9958 Invalid, 1900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1897 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:31:58,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5710 states. [2022-03-01 15:31:58,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5710 to 5462. [2022-03-01 15:31:58,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.624977110419337) internal successors, (14335), 5461 states have internal predecessors, (14335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:58,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14335 transitions. [2022-03-01 15:31:58,580 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14335 transitions. Word has length 137 [2022-03-01 15:31:58,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:31:58,580 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14335 transitions. [2022-03-01 15:31:58,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:31:58,580 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14335 transitions. [2022-03-01 15:31:58,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:31:58,585 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:31:58,585 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:31:58,585 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165 [2022-03-01 15:31:58,585 INFO L402 AbstractCegarLoop]: === Iteration 167 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:31:58,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:31:58,585 INFO L85 PathProgramCache]: Analyzing trace with hash 1536416337, now seen corresponding path program 9 times [2022-03-01 15:31:58,586 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:31:58,586 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609041559] [2022-03-01 15:31:58,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:31:58,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:31:58,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:31:59,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:31:59,098 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:31:59,099 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609041559] [2022-03-01 15:31:59,099 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609041559] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:31:59,099 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:31:59,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:31:59,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240544907] [2022-03-01 15:31:59,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:31:59,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:31:59,099 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:31:59,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:31:59,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=671, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:31:59,100 INFO L87 Difference]: Start difference. First operand 5462 states and 14335 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:05,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:05,020 INFO L93 Difference]: Finished difference Result 5970 states and 15622 transitions. [2022-03-01 15:32:05,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:32:05,021 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:32:05,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:05,027 INFO L225 Difference]: With dead ends: 5970 [2022-03-01 15:32:05,027 INFO L226 Difference]: Without dead ends: 5630 [2022-03-01 15:32:05,028 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 672 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=975, Invalid=3315, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:32:05,028 INFO L933 BasicCegarLoop]: 545 mSDtfsCounter, 974 mSDsluCounter, 8444 mSDsCounter, 0 mSdLazyCounter, 1735 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 974 SdHoareTripleChecker+Valid, 8826 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1735 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:05,028 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [974 Valid, 8826 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1735 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:32:05,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5630 states. [2022-03-01 15:32:05,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5630 to 5382. [2022-03-01 15:32:05,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 2.6372421482995727) internal successors, (14191), 5381 states have internal predecessors, (14191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:05,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 14191 transitions. [2022-03-01 15:32:05,084 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 14191 transitions. Word has length 137 [2022-03-01 15:32:05,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:05,084 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 14191 transitions. [2022-03-01 15:32:05,084 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:05,084 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 14191 transitions. [2022-03-01 15:32:05,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:32:05,089 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:05,089 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:05,089 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable166 [2022-03-01 15:32:05,089 INFO L402 AbstractCegarLoop]: === Iteration 168 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:05,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:05,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1791231757, now seen corresponding path program 10 times [2022-03-01 15:32:05,090 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:05,090 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210997839] [2022-03-01 15:32:05,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:05,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:05,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:05,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:05,593 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:05,593 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210997839] [2022-03-01 15:32:05,593 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210997839] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:05,593 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:05,593 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:32:05,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75617933] [2022-03-01 15:32:05,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:05,593 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:32:05,593 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:05,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:32:05,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:32:05,594 INFO L87 Difference]: Start difference. First operand 5382 states and 14191 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:13,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:13,880 INFO L93 Difference]: Finished difference Result 6398 states and 16754 transitions. [2022-03-01 15:32:13,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-01 15:32:13,880 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:32:13,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:13,887 INFO L225 Difference]: With dead ends: 6398 [2022-03-01 15:32:13,887 INFO L226 Difference]: Without dead ends: 5476 [2022-03-01 15:32:13,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2331 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=2600, Invalid=7702, Unknown=0, NotChecked=0, Total=10302 [2022-03-01 15:32:13,888 INFO L933 BasicCegarLoop]: 607 mSDtfsCounter, 1482 mSDsluCounter, 10342 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1482 SdHoareTripleChecker+Valid, 10675 SdHoareTripleChecker+Invalid, 2016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:13,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1482 Valid, 10675 Invalid, 2016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:32:13,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5476 states. [2022-03-01 15:32:13,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5476 to 5340. [2022-03-01 15:32:13,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5340 states, 5339 states have (on average 2.640194793032403) internal successors, (14096), 5339 states have internal predecessors, (14096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:13,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5340 states to 5340 states and 14096 transitions. [2022-03-01 15:32:13,952 INFO L78 Accepts]: Start accepts. Automaton has 5340 states and 14096 transitions. Word has length 137 [2022-03-01 15:32:13,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:13,952 INFO L470 AbstractCegarLoop]: Abstraction has 5340 states and 14096 transitions. [2022-03-01 15:32:13,952 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:13,952 INFO L276 IsEmpty]: Start isEmpty. Operand 5340 states and 14096 transitions. [2022-03-01 15:32:13,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:32:13,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:13,957 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:13,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable167 [2022-03-01 15:32:13,958 INFO L402 AbstractCegarLoop]: === Iteration 169 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:13,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:13,958 INFO L85 PathProgramCache]: Analyzing trace with hash 66333161, now seen corresponding path program 11 times [2022-03-01 15:32:13,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:13,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171779299] [2022-03-01 15:32:13,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:13,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:13,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:14,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:14,464 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:14,464 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171779299] [2022-03-01 15:32:14,465 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171779299] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:14,465 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:14,465 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:32:14,465 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205459706] [2022-03-01 15:32:14,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:14,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:32:14,465 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:14,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:32:14,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:32:14,465 INFO L87 Difference]: Start difference. First operand 5340 states and 14096 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:23,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:23,832 INFO L93 Difference]: Finished difference Result 7586 states and 19772 transitions. [2022-03-01 15:32:23,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-01 15:32:23,833 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:32:23,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:23,840 INFO L225 Difference]: With dead ends: 7586 [2022-03-01 15:32:23,841 INFO L226 Difference]: Without dead ends: 6613 [2022-03-01 15:32:23,841 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 104 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2544 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=2923, Invalid=8207, Unknown=0, NotChecked=0, Total=11130 [2022-03-01 15:32:23,841 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 1899 mSDsluCounter, 11000 mSDsCounter, 0 mSdLazyCounter, 2110 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1899 SdHoareTripleChecker+Valid, 11317 SdHoareTripleChecker+Invalid, 2113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:23,841 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1899 Valid, 11317 Invalid, 2113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2110 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:32:23,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6613 states. [2022-03-01 15:32:23,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6613 to 5364. [2022-03-01 15:32:23,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5364 states, 5363 states have (on average 2.638448629498415) internal successors, (14150), 5363 states have internal predecessors, (14150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:23,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5364 states to 5364 states and 14150 transitions. [2022-03-01 15:32:23,901 INFO L78 Accepts]: Start accepts. Automaton has 5364 states and 14150 transitions. Word has length 137 [2022-03-01 15:32:23,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:23,901 INFO L470 AbstractCegarLoop]: Abstraction has 5364 states and 14150 transitions. [2022-03-01 15:32:23,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:23,901 INFO L276 IsEmpty]: Start isEmpty. Operand 5364 states and 14150 transitions. [2022-03-01 15:32:23,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:32:23,906 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:23,906 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:23,907 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable168 [2022-03-01 15:32:23,907 INFO L402 AbstractCegarLoop]: === Iteration 170 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:23,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:23,907 INFO L85 PathProgramCache]: Analyzing trace with hash -162448323, now seen corresponding path program 12 times [2022-03-01 15:32:23,907 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:23,907 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206744015] [2022-03-01 15:32:23,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:23,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:23,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:24,390 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:24,390 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206744015] [2022-03-01 15:32:24,391 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206744015] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:24,391 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:24,391 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:32:24,391 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661659012] [2022-03-01 15:32:24,391 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:24,391 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:32:24,391 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:24,391 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:32:24,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:32:24,392 INFO L87 Difference]: Start difference. First operand 5364 states and 14150 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:32,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:32,104 INFO L93 Difference]: Finished difference Result 7476 states and 19554 transitions. [2022-03-01 15:32:32,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-01 15:32:32,104 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:32:32,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:32,113 INFO L225 Difference]: With dead ends: 7476 [2022-03-01 15:32:32,113 INFO L226 Difference]: Without dead ends: 6627 [2022-03-01 15:32:32,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2081 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=2337, Invalid=7169, Unknown=0, NotChecked=0, Total=9506 [2022-03-01 15:32:32,114 INFO L933 BasicCegarLoop]: 587 mSDtfsCounter, 1634 mSDsluCounter, 10619 mSDsCounter, 0 mSdLazyCounter, 2149 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 10939 SdHoareTripleChecker+Invalid, 2152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:32,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1634 Valid, 10939 Invalid, 2152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2149 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:32:32,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6627 states. [2022-03-01 15:32:32,172 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6627 to 5420. [2022-03-01 15:32:32,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5420 states, 5419 states have (on average 2.630005536076767) internal successors, (14252), 5419 states have internal predecessors, (14252), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:32,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5420 states to 5420 states and 14252 transitions. [2022-03-01 15:32:32,187 INFO L78 Accepts]: Start accepts. Automaton has 5420 states and 14252 transitions. Word has length 137 [2022-03-01 15:32:32,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:32,187 INFO L470 AbstractCegarLoop]: Abstraction has 5420 states and 14252 transitions. [2022-03-01 15:32:32,188 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:32,188 INFO L276 IsEmpty]: Start isEmpty. Operand 5420 states and 14252 transitions. [2022-03-01 15:32:32,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:32:32,194 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:32,194 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:32,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable169 [2022-03-01 15:32:32,194 INFO L402 AbstractCegarLoop]: === Iteration 171 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:32,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:32,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1808877885, now seen corresponding path program 13 times [2022-03-01 15:32:32,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:32,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1616193771] [2022-03-01 15:32:32,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:32,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:32,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:32,697 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:32,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1616193771] [2022-03-01 15:32:32,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1616193771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:32,698 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:32,698 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:32:32,698 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586839131] [2022-03-01 15:32:32,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:32,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:32:32,698 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:32,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:32:32,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:32:32,699 INFO L87 Difference]: Start difference. First operand 5420 states and 14252 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:39,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:39,562 INFO L93 Difference]: Finished difference Result 7042 states and 18396 transitions. [2022-03-01 15:32:39,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-01 15:32:39,563 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:32:39,563 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:39,571 INFO L225 Difference]: With dead ends: 7042 [2022-03-01 15:32:39,571 INFO L226 Difference]: Without dead ends: 6596 [2022-03-01 15:32:39,571 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1894 ImplicationChecksByTransitivity, 6.2s TimeCoverageRelationStatistics Valid=2071, Invalid=6671, Unknown=0, NotChecked=0, Total=8742 [2022-03-01 15:32:39,572 INFO L933 BasicCegarLoop]: 569 mSDtfsCounter, 1426 mSDsluCounter, 9899 mSDsCounter, 0 mSdLazyCounter, 2011 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1426 SdHoareTripleChecker+Valid, 10230 SdHoareTripleChecker+Invalid, 2014 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2011 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:39,572 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1426 Valid, 10230 Invalid, 2014 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2011 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:32:39,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6596 states. [2022-03-01 15:32:39,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6596 to 5424. [2022-03-01 15:32:39,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 2.629356444772266) internal successors, (14259), 5423 states have internal predecessors, (14259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:39,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 14259 transitions. [2022-03-01 15:32:39,640 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 14259 transitions. Word has length 137 [2022-03-01 15:32:39,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:39,640 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 14259 transitions. [2022-03-01 15:32:39,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:39,641 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 14259 transitions. [2022-03-01 15:32:39,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:32:39,646 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:39,646 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:39,646 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable170 [2022-03-01 15:32:39,647 INFO L402 AbstractCegarLoop]: === Iteration 172 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:39,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:39,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1897228997, now seen corresponding path program 14 times [2022-03-01 15:32:39,647 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:39,647 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893678426] [2022-03-01 15:32:39,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:39,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:40,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:40,128 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:40,128 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893678426] [2022-03-01 15:32:40,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893678426] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:40,128 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:40,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:32:40,128 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756042939] [2022-03-01 15:32:40,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:40,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:32:40,128 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:40,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:32:40,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:32:40,129 INFO L87 Difference]: Start difference. First operand 5424 states and 14259 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:44,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:44,938 INFO L93 Difference]: Finished difference Result 6804 states and 17849 transitions. [2022-03-01 15:32:44,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-01 15:32:44,938 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:32:44,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:44,947 INFO L225 Difference]: With dead ends: 6804 [2022-03-01 15:32:44,947 INFO L226 Difference]: Without dead ends: 6389 [2022-03-01 15:32:44,948 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1754 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1824, Invalid=6186, Unknown=0, NotChecked=0, Total=8010 [2022-03-01 15:32:44,948 INFO L933 BasicCegarLoop]: 561 mSDtfsCounter, 1227 mSDsluCounter, 9685 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1227 SdHoareTripleChecker+Valid, 10027 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:44,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1227 Valid, 10027 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:32:44,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6389 states. [2022-03-01 15:32:44,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6389 to 5436. [2022-03-01 15:32:45,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6274149034038636) internal successors, (14280), 5435 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:45,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14280 transitions. [2022-03-01 15:32:45,009 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14280 transitions. Word has length 137 [2022-03-01 15:32:45,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:45,009 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14280 transitions. [2022-03-01 15:32:45,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:45,009 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14280 transitions. [2022-03-01 15:32:45,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:32:45,014 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:45,014 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:45,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable171 [2022-03-01 15:32:45,015 INFO L402 AbstractCegarLoop]: === Iteration 173 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:45,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:45,015 INFO L85 PathProgramCache]: Analyzing trace with hash -65903103, now seen corresponding path program 15 times [2022-03-01 15:32:45,015 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:45,015 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938962350] [2022-03-01 15:32:45,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:45,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:45,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:45,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:45,492 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:45,492 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938962350] [2022-03-01 15:32:45,492 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938962350] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:45,492 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:45,492 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:32:45,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980337131] [2022-03-01 15:32:45,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:45,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:32:45,493 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:45,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:32:45,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:32:45,493 INFO L87 Difference]: Start difference. First operand 5436 states and 14280 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:49,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:49,654 INFO L93 Difference]: Finished difference Result 6649 states and 17442 transitions. [2022-03-01 15:32:49,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-01 15:32:49,654 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:32:49,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:49,662 INFO L225 Difference]: With dead ends: 6649 [2022-03-01 15:32:49,662 INFO L226 Difference]: Without dead ends: 6327 [2022-03-01 15:32:49,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1343 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1492, Invalid=5150, Unknown=0, NotChecked=0, Total=6642 [2022-03-01 15:32:49,663 INFO L933 BasicCegarLoop]: 552 mSDtfsCounter, 1194 mSDsluCounter, 8575 mSDsCounter, 0 mSdLazyCounter, 1784 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1194 SdHoareTripleChecker+Valid, 8949 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:49,663 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1194 Valid, 8949 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1784 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:32:49,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2022-03-01 15:32:49,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 5440. [2022-03-01 15:32:49,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6267696267696268) internal successors, (14287), 5439 states have internal predecessors, (14287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:49,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14287 transitions. [2022-03-01 15:32:49,734 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14287 transitions. Word has length 137 [2022-03-01 15:32:49,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:49,734 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14287 transitions. [2022-03-01 15:32:49,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:49,734 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14287 transitions. [2022-03-01 15:32:49,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:32:49,740 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:49,740 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:49,740 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable172 [2022-03-01 15:32:49,741 INFO L402 AbstractCegarLoop]: === Iteration 174 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:49,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:49,741 INFO L85 PathProgramCache]: Analyzing trace with hash 229699733, now seen corresponding path program 16 times [2022-03-01 15:32:49,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:49,741 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806949087] [2022-03-01 15:32:49,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:49,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:49,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:50,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:50,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:50,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806949087] [2022-03-01 15:32:50,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806949087] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:50,254 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:50,254 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:32:50,254 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070588210] [2022-03-01 15:32:50,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:50,254 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:32:50,254 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:50,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:32:50,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:32:50,255 INFO L87 Difference]: Start difference. First operand 5440 states and 14287 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:53,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:53,849 INFO L93 Difference]: Finished difference Result 6556 states and 17201 transitions. [2022-03-01 15:32:53,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 15:32:53,849 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:32:53,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:53,857 INFO L225 Difference]: With dead ends: 6556 [2022-03-01 15:32:53,858 INFO L226 Difference]: Without dead ends: 6265 [2022-03-01 15:32:53,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 979 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1210, Invalid=4192, Unknown=0, NotChecked=0, Total=5402 [2022-03-01 15:32:53,859 INFO L933 BasicCegarLoop]: 544 mSDtfsCounter, 1121 mSDsluCounter, 8206 mSDsCounter, 0 mSdLazyCounter, 1709 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1121 SdHoareTripleChecker+Valid, 8593 SdHoareTripleChecker+Invalid, 1712 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1709 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:53,859 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1121 Valid, 8593 Invalid, 1712 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1709 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:32:53,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6265 states. [2022-03-01 15:32:53,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6265 to 5444. [2022-03-01 15:32:53,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 2.6261252985485943) internal successors, (14294), 5443 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:53,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 14294 transitions. [2022-03-01 15:32:53,922 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 14294 transitions. Word has length 137 [2022-03-01 15:32:53,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:53,922 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 14294 transitions. [2022-03-01 15:32:53,923 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:53,923 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 14294 transitions. [2022-03-01 15:32:53,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:32:53,928 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:53,928 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:53,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173 [2022-03-01 15:32:53,928 INFO L402 AbstractCegarLoop]: === Iteration 175 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:53,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:53,928 INFO L85 PathProgramCache]: Analyzing trace with hash -188481921, now seen corresponding path program 17 times [2022-03-01 15:32:53,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:53,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2088532992] [2022-03-01 15:32:53,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:53,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:53,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:54,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:54,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:54,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2088532992] [2022-03-01 15:32:54,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2088532992] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:54,420 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:54,420 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:32:54,420 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225765972] [2022-03-01 15:32:54,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:54,420 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:32:54,420 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:54,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:32:54,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:32:54,421 INFO L87 Difference]: Start difference. First operand 5444 states and 14294 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:58,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:32:58,513 INFO L93 Difference]: Finished difference Result 6401 states and 16802 transitions. [2022-03-01 15:32:58,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:32:58,513 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:32:58,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:32:58,521 INFO L225 Difference]: With dead ends: 6401 [2022-03-01 15:32:58,521 INFO L226 Difference]: Without dead ends: 6144 [2022-03-01 15:32:58,521 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 461 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=951, Invalid=2831, Unknown=0, NotChecked=0, Total=3782 [2022-03-01 15:32:58,521 INFO L933 BasicCegarLoop]: 529 mSDtfsCounter, 987 mSDsluCounter, 9316 mSDsCounter, 0 mSdLazyCounter, 1883 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 987 SdHoareTripleChecker+Valid, 9671 SdHoareTripleChecker+Invalid, 1886 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1883 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:32:58,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [987 Valid, 9671 Invalid, 1886 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1883 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:32:58,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6144 states. [2022-03-01 15:32:58,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6144 to 5448. [2022-03-01 15:32:58,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5447 states have (on average 2.625481916651368) internal successors, (14301), 5447 states have internal predecessors, (14301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:58,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 14301 transitions. [2022-03-01 15:32:58,588 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 14301 transitions. Word has length 137 [2022-03-01 15:32:58,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:32:58,588 INFO L470 AbstractCegarLoop]: Abstraction has 5448 states and 14301 transitions. [2022-03-01 15:32:58,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:32:58,588 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 14301 transitions. [2022-03-01 15:32:58,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:32:58,593 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:32:58,594 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:32:58,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable174 [2022-03-01 15:32:58,594 INFO L402 AbstractCegarLoop]: === Iteration 176 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:32:58,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:32:58,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1304339513, now seen corresponding path program 18 times [2022-03-01 15:32:58,594 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:32:58,594 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652677051] [2022-03-01 15:32:58,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:32:58,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:32:58,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:32:59,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:32:59,077 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:32:59,077 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652677051] [2022-03-01 15:32:59,077 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652677051] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:32:59,077 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:32:59,077 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:32:59,077 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314564504] [2022-03-01 15:32:59,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:32:59,077 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:32:59,077 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:32:59,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:32:59,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:32:59,078 INFO L87 Difference]: Start difference. First operand 5448 states and 14301 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:03,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:03,280 INFO L93 Difference]: Finished difference Result 6404 states and 16804 transitions. [2022-03-01 15:33:03,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:33:03,280 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:33:03,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:03,287 INFO L225 Difference]: With dead ends: 6404 [2022-03-01 15:33:03,287 INFO L226 Difference]: Without dead ends: 6064 [2022-03-01 15:33:03,288 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 663 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=978, Invalid=3312, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:33:03,288 INFO L933 BasicCegarLoop]: 537 mSDtfsCounter, 1022 mSDsluCounter, 8120 mSDsCounter, 0 mSdLazyCounter, 1683 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 8516 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:03,288 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 8516 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1683 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:33:03,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6064 states. [2022-03-01 15:33:03,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6064 to 5368. [2022-03-01 15:33:03,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5368 states, 5367 states have (on average 2.6377864728898825) internal successors, (14157), 5367 states have internal predecessors, (14157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:03,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5368 states to 5368 states and 14157 transitions. [2022-03-01 15:33:03,345 INFO L78 Accepts]: Start accepts. Automaton has 5368 states and 14157 transitions. Word has length 137 [2022-03-01 15:33:03,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:03,346 INFO L470 AbstractCegarLoop]: Abstraction has 5368 states and 14157 transitions. [2022-03-01 15:33:03,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:03,346 INFO L276 IsEmpty]: Start isEmpty. Operand 5368 states and 14157 transitions. [2022-03-01 15:33:03,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:33:03,351 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:03,351 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:03,351 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable175 [2022-03-01 15:33:03,351 INFO L402 AbstractCegarLoop]: === Iteration 177 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:03,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:03,351 INFO L85 PathProgramCache]: Analyzing trace with hash -2023308581, now seen corresponding path program 19 times [2022-03-01 15:33:03,351 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:03,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852777555] [2022-03-01 15:33:03,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:03,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:03,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:03,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:03,799 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:03,799 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852777555] [2022-03-01 15:33:03,799 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852777555] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:03,799 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:03,799 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:33:03,800 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837404928] [2022-03-01 15:33:03,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:03,800 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:33:03,800 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:03,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:33:03,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:33:03,800 INFO L87 Difference]: Start difference. First operand 5368 states and 14157 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:14,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:14,387 INFO L93 Difference]: Finished difference Result 6832 states and 17936 transitions. [2022-03-01 15:33:14,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-01 15:33:14,387 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:33:14,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:14,394 INFO L225 Difference]: With dead ends: 6832 [2022-03-01 15:33:14,394 INFO L226 Difference]: Without dead ends: 5936 [2022-03-01 15:33:14,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2313 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=2622, Invalid=7680, Unknown=0, NotChecked=0, Total=10302 [2022-03-01 15:33:14,395 INFO L933 BasicCegarLoop]: 597 mSDtfsCounter, 1533 mSDsluCounter, 9910 mSDsCounter, 0 mSdLazyCounter, 1963 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1533 SdHoareTripleChecker+Valid, 10255 SdHoareTripleChecker+Invalid, 1966 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:14,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1533 Valid, 10255 Invalid, 1966 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1963 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:33:14,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5936 states. [2022-03-01 15:33:14,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5936 to 5352. [2022-03-01 15:33:14,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5352 states, 5351 states have (on average 2.638198467576154) internal successors, (14117), 5351 states have internal predecessors, (14117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:14,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5352 states to 5352 states and 14117 transitions. [2022-03-01 15:33:14,449 INFO L78 Accepts]: Start accepts. Automaton has 5352 states and 14117 transitions. Word has length 137 [2022-03-01 15:33:14,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:14,449 INFO L470 AbstractCegarLoop]: Abstraction has 5352 states and 14117 transitions. [2022-03-01 15:33:14,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:14,449 INFO L276 IsEmpty]: Start isEmpty. Operand 5352 states and 14117 transitions. [2022-03-01 15:33:14,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:33:14,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:14,454 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:14,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176 [2022-03-01 15:33:14,454 INFO L402 AbstractCegarLoop]: === Iteration 178 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:14,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:14,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1583190413, now seen corresponding path program 20 times [2022-03-01 15:33:14,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:14,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926404715] [2022-03-01 15:33:14,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:14,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:14,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:14,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:14,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:14,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926404715] [2022-03-01 15:33:14,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926404715] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:14,939 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:14,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:33:14,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989164237] [2022-03-01 15:33:14,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:14,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:33:14,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:14,940 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:33:14,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:33:14,940 INFO L87 Difference]: Start difference. First operand 5352 states and 14117 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:22,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:22,872 INFO L93 Difference]: Finished difference Result 7348 states and 19206 transitions. [2022-03-01 15:33:22,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-01 15:33:22,873 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:33:22,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:22,881 INFO L225 Difference]: With dead ends: 7348 [2022-03-01 15:33:22,881 INFO L226 Difference]: Without dead ends: 6499 [2022-03-01 15:33:22,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2143 ImplicationChecksByTransitivity, 7.2s TimeCoverageRelationStatistics Valid=2384, Invalid=7122, Unknown=0, NotChecked=0, Total=9506 [2022-03-01 15:33:22,882 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 1627 mSDsluCounter, 9893 mSDsCounter, 0 mSdLazyCounter, 2101 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1627 SdHoareTripleChecker+Valid, 10232 SdHoareTripleChecker+Invalid, 2104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:22,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1627 Valid, 10232 Invalid, 2104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2101 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:33:22,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6499 states. [2022-03-01 15:33:22,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6499 to 5460. [2022-03-01 15:33:22,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5460 states, 5459 states have (on average 2.630884777431764) internal successors, (14362), 5459 states have internal predecessors, (14362), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:22,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5460 states to 5460 states and 14362 transitions. [2022-03-01 15:33:22,946 INFO L78 Accepts]: Start accepts. Automaton has 5460 states and 14362 transitions. Word has length 137 [2022-03-01 15:33:22,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:22,946 INFO L470 AbstractCegarLoop]: Abstraction has 5460 states and 14362 transitions. [2022-03-01 15:33:22,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:22,946 INFO L276 IsEmpty]: Start isEmpty. Operand 5460 states and 14362 transitions. [2022-03-01 15:33:22,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:33:22,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:22,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:22,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable177 [2022-03-01 15:33:22,952 INFO L402 AbstractCegarLoop]: === Iteration 179 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:22,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:22,952 INFO L85 PathProgramCache]: Analyzing trace with hash -311112695, now seen corresponding path program 21 times [2022-03-01 15:33:22,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:22,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1173924402] [2022-03-01 15:33:22,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:22,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:22,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:23,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:23,476 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:23,476 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1173924402] [2022-03-01 15:33:23,476 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1173924402] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:23,476 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:23,476 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:33:23,476 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799699969] [2022-03-01 15:33:23,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:23,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:33:23,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:23,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:33:23,477 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:33:23,477 INFO L87 Difference]: Start difference. First operand 5460 states and 14362 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:30,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:30,741 INFO L93 Difference]: Finished difference Result 7026 states and 18348 transitions. [2022-03-01 15:33:30,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-01 15:33:30,742 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:33:30,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:30,750 INFO L225 Difference]: With dead ends: 7026 [2022-03-01 15:33:30,750 INFO L226 Difference]: Without dead ends: 6580 [2022-03-01 15:33:30,750 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1950 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=2114, Invalid=6628, Unknown=0, NotChecked=0, Total=8742 [2022-03-01 15:33:30,751 INFO L933 BasicCegarLoop]: 567 mSDtfsCounter, 1478 mSDsluCounter, 9510 mSDsCounter, 0 mSdLazyCounter, 2012 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1478 SdHoareTripleChecker+Valid, 9848 SdHoareTripleChecker+Invalid, 2015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2012 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:30,751 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1478 Valid, 9848 Invalid, 2015 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2012 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:33:30,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6580 states. [2022-03-01 15:33:30,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6580 to 5464. [2022-03-01 15:33:30,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5464 states, 5463 states have (on average 2.630239794984441) internal successors, (14369), 5463 states have internal predecessors, (14369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:30,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5464 states to 5464 states and 14369 transitions. [2022-03-01 15:33:30,809 INFO L78 Accepts]: Start accepts. Automaton has 5464 states and 14369 transitions. Word has length 137 [2022-03-01 15:33:30,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:30,810 INFO L470 AbstractCegarLoop]: Abstraction has 5464 states and 14369 transitions. [2022-03-01 15:33:30,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:30,810 INFO L276 IsEmpty]: Start isEmpty. Operand 5464 states and 14369 transitions. [2022-03-01 15:33:30,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:33:30,815 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:30,815 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:30,815 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable178 [2022-03-01 15:33:30,815 INFO L402 AbstractCegarLoop]: === Iteration 180 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:30,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:30,815 INFO L85 PathProgramCache]: Analyzing trace with hash 277747719, now seen corresponding path program 22 times [2022-03-01 15:33:30,815 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:30,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041961489] [2022-03-01 15:33:30,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:30,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:30,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:31,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:31,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:31,299 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041961489] [2022-03-01 15:33:31,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041961489] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:31,299 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:31,299 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:33:31,299 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466709609] [2022-03-01 15:33:31,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:31,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:33:31,300 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:31,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:33:31,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:33:31,300 INFO L87 Difference]: Start difference. First operand 5464 states and 14369 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:37,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:37,929 INFO L93 Difference]: Finished difference Result 6800 states and 17830 transitions. [2022-03-01 15:33:37,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-01 15:33:37,929 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:33:37,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:37,937 INFO L225 Difference]: With dead ends: 6800 [2022-03-01 15:33:37,937 INFO L226 Difference]: Without dead ends: 6385 [2022-03-01 15:33:37,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1736 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=1860, Invalid=6150, Unknown=0, NotChecked=0, Total=8010 [2022-03-01 15:33:37,938 INFO L933 BasicCegarLoop]: 559 mSDtfsCounter, 1131 mSDsluCounter, 9086 mSDsCounter, 0 mSdLazyCounter, 1982 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1131 SdHoareTripleChecker+Valid, 9437 SdHoareTripleChecker+Invalid, 1985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1982 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:37,938 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1131 Valid, 9437 Invalid, 1985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1982 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:33:37,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6385 states. [2022-03-01 15:33:37,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6385 to 5476. [2022-03-01 15:33:37,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5476 states, 5475 states have (on average 2.628310502283105) internal successors, (14390), 5475 states have internal predecessors, (14390), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:38,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5476 states to 5476 states and 14390 transitions. [2022-03-01 15:33:38,001 INFO L78 Accepts]: Start accepts. Automaton has 5476 states and 14390 transitions. Word has length 137 [2022-03-01 15:33:38,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:38,001 INFO L470 AbstractCegarLoop]: Abstraction has 5476 states and 14390 transitions. [2022-03-01 15:33:38,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:38,001 INFO L276 IsEmpty]: Start isEmpty. Operand 5476 states and 14390 transitions. [2022-03-01 15:33:38,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:33:38,006 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:38,006 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:38,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable179 [2022-03-01 15:33:38,006 INFO L402 AbstractCegarLoop]: === Iteration 181 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:38,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:38,007 INFO L85 PathProgramCache]: Analyzing trace with hash 2109073613, now seen corresponding path program 23 times [2022-03-01 15:33:38,007 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:38,007 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879876481] [2022-03-01 15:33:38,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:38,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:38,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:38,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:38,490 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:38,490 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879876481] [2022-03-01 15:33:38,490 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879876481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:38,490 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:38,490 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:33:38,490 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260089165] [2022-03-01 15:33:38,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:38,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:33:38,490 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:38,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:33:38,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:33:38,491 INFO L87 Difference]: Start difference. First operand 5476 states and 14390 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:43,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:43,184 INFO L93 Difference]: Finished difference Result 6649 states and 17434 transitions. [2022-03-01 15:33:43,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-01 15:33:43,184 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:33:43,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:43,193 INFO L225 Difference]: With dead ends: 6649 [2022-03-01 15:33:43,193 INFO L226 Difference]: Without dead ends: 6327 [2022-03-01 15:33:43,194 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1329 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1520, Invalid=5122, Unknown=0, NotChecked=0, Total=6642 [2022-03-01 15:33:43,194 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1167 mSDsluCounter, 9361 mSDsCounter, 0 mSdLazyCounter, 2005 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 9705 SdHoareTripleChecker+Invalid, 2008 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2005 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:43,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1167 Valid, 9705 Invalid, 2008 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2005 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:33:43,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6327 states. [2022-03-01 15:33:43,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6327 to 5480. [2022-03-01 15:33:43,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5480 states, 5479 states have (on average 2.627669282715824) internal successors, (14397), 5479 states have internal predecessors, (14397), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:43,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5480 states to 5480 states and 14397 transitions. [2022-03-01 15:33:43,267 INFO L78 Accepts]: Start accepts. Automaton has 5480 states and 14397 transitions. Word has length 137 [2022-03-01 15:33:43,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:43,267 INFO L470 AbstractCegarLoop]: Abstraction has 5480 states and 14397 transitions. [2022-03-01 15:33:43,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:43,267 INFO L276 IsEmpty]: Start isEmpty. Operand 5480 states and 14397 transitions. [2022-03-01 15:33:43,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:33:43,273 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:43,273 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:43,273 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180 [2022-03-01 15:33:43,273 INFO L402 AbstractCegarLoop]: === Iteration 182 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:43,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:43,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1890290847, now seen corresponding path program 24 times [2022-03-01 15:33:43,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:43,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355390618] [2022-03-01 15:33:43,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:43,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:43,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:43,784 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:43,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:43,784 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355390618] [2022-03-01 15:33:43,784 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355390618] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:43,784 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:43,784 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:33:43,785 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311742188] [2022-03-01 15:33:43,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:43,785 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:33:43,785 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:43,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:33:43,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:33:43,785 INFO L87 Difference]: Start difference. First operand 5480 states and 14397 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:47,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:47,754 INFO L93 Difference]: Finished difference Result 6560 states and 17204 transitions. [2022-03-01 15:33:47,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 15:33:47,754 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:33:47,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:47,763 INFO L225 Difference]: With dead ends: 6560 [2022-03-01 15:33:47,763 INFO L226 Difference]: Without dead ends: 6269 [2022-03-01 15:33:47,764 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1228, Invalid=4174, Unknown=0, NotChecked=0, Total=5402 [2022-03-01 15:33:47,764 INFO L933 BasicCegarLoop]: 540 mSDtfsCounter, 1054 mSDsluCounter, 9323 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1054 SdHoareTripleChecker+Valid, 9669 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:47,764 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1054 Valid, 9669 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:33:47,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6269 states. [2022-03-01 15:33:47,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6269 to 5484. [2022-03-01 15:33:47,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5484 states, 5483 states have (on average 2.627028998723327) internal successors, (14404), 5483 states have internal predecessors, (14404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:47,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5484 states to 5484 states and 14404 transitions. [2022-03-01 15:33:47,828 INFO L78 Accepts]: Start accepts. Automaton has 5484 states and 14404 transitions. Word has length 137 [2022-03-01 15:33:47,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:47,829 INFO L470 AbstractCegarLoop]: Abstraction has 5484 states and 14404 transitions. [2022-03-01 15:33:47,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:47,829 INFO L276 IsEmpty]: Start isEmpty. Operand 5484 states and 14404 transitions. [2022-03-01 15:33:47,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:33:47,834 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:47,834 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:47,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable181 [2022-03-01 15:33:47,834 INFO L402 AbstractCegarLoop]: === Iteration 183 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:47,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:47,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1986494795, now seen corresponding path program 25 times [2022-03-01 15:33:47,834 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:47,834 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710553141] [2022-03-01 15:33:47,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:47,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:47,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:48,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:48,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:48,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710553141] [2022-03-01 15:33:48,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710553141] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:48,340 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:48,340 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:33:48,341 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781721322] [2022-03-01 15:33:48,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:48,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:33:48,341 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:48,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:33:48,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:33:48,341 INFO L87 Difference]: Start difference. First operand 5484 states and 14404 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:51,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:51,992 INFO L93 Difference]: Finished difference Result 6417 states and 16838 transitions. [2022-03-01 15:33:51,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:33:51,993 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:33:51,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:52,002 INFO L225 Difference]: With dead ends: 6417 [2022-03-01 15:33:52,003 INFO L226 Difference]: Without dead ends: 6160 [2022-03-01 15:33:52,003 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=958, Invalid=2824, Unknown=0, NotChecked=0, Total=3782 [2022-03-01 15:33:52,003 INFO L933 BasicCegarLoop]: 524 mSDtfsCounter, 1032 mSDsluCounter, 8471 mSDsCounter, 0 mSdLazyCounter, 1808 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1032 SdHoareTripleChecker+Valid, 8841 SdHoareTripleChecker+Invalid, 1811 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:52,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1032 Valid, 8841 Invalid, 1811 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1808 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:33:52,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6160 states. [2022-03-01 15:33:52,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6160 to 5488. [2022-03-01 15:33:52,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5488 states, 5487 states have (on average 2.6263896482595226) internal successors, (14411), 5487 states have internal predecessors, (14411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:52,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5488 states to 5488 states and 14411 transitions. [2022-03-01 15:33:52,087 INFO L78 Accepts]: Start accepts. Automaton has 5488 states and 14411 transitions. Word has length 137 [2022-03-01 15:33:52,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:52,088 INFO L470 AbstractCegarLoop]: Abstraction has 5488 states and 14411 transitions. [2022-03-01 15:33:52,088 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:52,088 INFO L276 IsEmpty]: Start isEmpty. Operand 5488 states and 14411 transitions. [2022-03-01 15:33:52,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:33:52,094 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:52,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:52,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable182 [2022-03-01 15:33:52,094 INFO L402 AbstractCegarLoop]: === Iteration 184 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:52,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:52,094 INFO L85 PathProgramCache]: Analyzing trace with hash -815651067, now seen corresponding path program 26 times [2022-03-01 15:33:52,094 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:52,094 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914565956] [2022-03-01 15:33:52,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:52,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:52,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:52,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:52,606 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:52,606 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914565956] [2022-03-01 15:33:52,606 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914565956] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:52,606 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:52,606 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:33:52,607 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887817820] [2022-03-01 15:33:52,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:52,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:33:52,607 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:52,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:33:52,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:33:52,607 INFO L87 Difference]: Start difference. First operand 5488 states and 14411 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:57,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:33:57,060 INFO L93 Difference]: Finished difference Result 6388 states and 16756 transitions. [2022-03-01 15:33:57,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:33:57,060 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:33:57,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:33:57,068 INFO L225 Difference]: With dead ends: 6388 [2022-03-01 15:33:57,068 INFO L226 Difference]: Without dead ends: 6048 [2022-03-01 15:33:57,068 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=990, Invalid=3300, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:33:57,069 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 917 mSDsluCounter, 9724 mSDsCounter, 0 mSdLazyCounter, 2037 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 917 SdHoareTripleChecker+Valid, 10065 SdHoareTripleChecker+Invalid, 2040 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:33:57,069 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [917 Valid, 10065 Invalid, 2040 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2037 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:33:57,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6048 states. [2022-03-01 15:33:57,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6048 to 5408. [2022-03-01 15:33:57,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5408 states, 5407 states have (on average 2.629739226928056) internal successors, (14219), 5407 states have internal predecessors, (14219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:57,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5408 states to 5408 states and 14219 transitions. [2022-03-01 15:33:57,129 INFO L78 Accepts]: Start accepts. Automaton has 5408 states and 14219 transitions. Word has length 137 [2022-03-01 15:33:57,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:33:57,129 INFO L470 AbstractCegarLoop]: Abstraction has 5408 states and 14219 transitions. [2022-03-01 15:33:57,129 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:33:57,130 INFO L276 IsEmpty]: Start isEmpty. Operand 5408 states and 14219 transitions. [2022-03-01 15:33:57,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:33:57,134 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:33:57,134 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:33:57,135 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable183 [2022-03-01 15:33:57,135 INFO L402 AbstractCegarLoop]: === Iteration 185 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:33:57,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:33:57,135 INFO L85 PathProgramCache]: Analyzing trace with hash 1177963679, now seen corresponding path program 27 times [2022-03-01 15:33:57,135 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:33:57,135 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165885679] [2022-03-01 15:33:57,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:33:57,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:33:57,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:33:57,633 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:33:57,634 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:33:57,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165885679] [2022-03-01 15:33:57,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165885679] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:33:57,634 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:33:57,634 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:33:57,634 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793670020] [2022-03-01 15:33:57,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:33:57,634 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:33:57,634 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:33:57,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:33:57,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:33:57,635 INFO L87 Difference]: Start difference. First operand 5408 states and 14219 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:02,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:02,202 INFO L93 Difference]: Finished difference Result 6437 states and 16883 transitions. [2022-03-01 15:34:02,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-01 15:34:02,202 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:34:02,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:02,210 INFO L225 Difference]: With dead ends: 6437 [2022-03-01 15:34:02,211 INFO L226 Difference]: Without dead ends: 6115 [2022-03-01 15:34:02,211 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1206 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1520, Invalid=4960, Unknown=0, NotChecked=0, Total=6480 [2022-03-01 15:34:02,212 INFO L933 BasicCegarLoop]: 536 mSDtfsCounter, 1114 mSDsluCounter, 9778 mSDsCounter, 0 mSdLazyCounter, 2073 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1114 SdHoareTripleChecker+Valid, 10091 SdHoareTripleChecker+Invalid, 2076 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2073 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:02,212 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1114 Valid, 10091 Invalid, 2076 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2073 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:34:02,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6115 states. [2022-03-01 15:34:02,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6115 to 5432. [2022-03-01 15:34:02,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6295341557724177) internal successors, (14281), 5431 states have internal predecessors, (14281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:02,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14281 transitions. [2022-03-01 15:34:02,276 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14281 transitions. Word has length 137 [2022-03-01 15:34:02,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:02,276 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14281 transitions. [2022-03-01 15:34:02,276 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:02,276 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14281 transitions. [2022-03-01 15:34:02,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:34:02,282 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:02,282 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:02,282 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184 [2022-03-01 15:34:02,282 INFO L402 AbstractCegarLoop]: === Iteration 186 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:02,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:02,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1473566515, now seen corresponding path program 28 times [2022-03-01 15:34:02,282 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:02,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916876403] [2022-03-01 15:34:02,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:02,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:02,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:02,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:02,785 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:02,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916876403] [2022-03-01 15:34:02,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1916876403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:02,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:02,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:34:02,786 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441572153] [2022-03-01 15:34:02,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:02,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:34:02,786 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:02,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:34:02,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:34:02,786 INFO L87 Difference]: Start difference. First operand 5432 states and 14281 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:07,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:07,168 INFO L93 Difference]: Finished difference Result 6380 states and 16741 transitions. [2022-03-01 15:34:07,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 15:34:07,169 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:34:07,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:07,177 INFO L225 Difference]: With dead ends: 6380 [2022-03-01 15:34:07,177 INFO L226 Difference]: Without dead ends: 6089 [2022-03-01 15:34:07,177 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 902 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1257, Invalid=4145, Unknown=0, NotChecked=0, Total=5402 [2022-03-01 15:34:07,178 INFO L933 BasicCegarLoop]: 530 mSDtfsCounter, 966 mSDsluCounter, 9545 mSDsCounter, 0 mSdLazyCounter, 2044 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 966 SdHoareTripleChecker+Valid, 9870 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:07,178 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [966 Valid, 9870 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2044 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:34:07,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6089 states. [2022-03-01 15:34:07,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6089 to 5436. [2022-03-01 15:34:07,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.628886844526219) internal successors, (14288), 5435 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:07,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14288 transitions. [2022-03-01 15:34:07,239 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14288 transitions. Word has length 137 [2022-03-01 15:34:07,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:07,239 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14288 transitions. [2022-03-01 15:34:07,239 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:07,239 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14288 transitions. [2022-03-01 15:34:07,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:34:07,244 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:07,244 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:07,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable185 [2022-03-01 15:34:07,244 INFO L402 AbstractCegarLoop]: === Iteration 187 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:07,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:07,244 INFO L85 PathProgramCache]: Analyzing trace with hash 1055384861, now seen corresponding path program 29 times [2022-03-01 15:34:07,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:07,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444325266] [2022-03-01 15:34:07,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:07,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:07,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:07,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:07,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:07,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444325266] [2022-03-01 15:34:07,737 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444325266] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:07,737 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:07,737 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:34:07,737 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142515272] [2022-03-01 15:34:07,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:07,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:34:07,737 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:07,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:34:07,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:34:07,738 INFO L87 Difference]: Start difference. First operand 5436 states and 14288 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:13,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:13,159 INFO L93 Difference]: Finished difference Result 6277 states and 16477 transitions. [2022-03-01 15:34:13,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:34:13,160 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:34:13,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:13,168 INFO L225 Difference]: With dead ends: 6277 [2022-03-01 15:34:13,168 INFO L226 Difference]: Without dead ends: 6020 [2022-03-01 15:34:13,168 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=1028, Invalid=3004, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:34:13,168 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 946 mSDsluCounter, 8705 mSDsCounter, 0 mSdLazyCounter, 1860 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 9060 SdHoareTripleChecker+Invalid, 1863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:13,168 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [946 Valid, 9060 Invalid, 1863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1860 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:34:13,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2022-03-01 15:34:13,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 5440. [2022-03-01 15:34:13,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6282404853833423) internal successors, (14295), 5439 states have internal predecessors, (14295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:13,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14295 transitions. [2022-03-01 15:34:13,245 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14295 transitions. Word has length 137 [2022-03-01 15:34:13,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:13,245 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14295 transitions. [2022-03-01 15:34:13,245 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:13,245 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14295 transitions. [2022-03-01 15:34:13,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:34:13,250 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:13,250 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:13,250 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable186 [2022-03-01 15:34:13,250 INFO L402 AbstractCegarLoop]: === Iteration 188 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:13,251 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:13,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1746761001, now seen corresponding path program 30 times [2022-03-01 15:34:13,251 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:13,251 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323972074] [2022-03-01 15:34:13,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:13,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:13,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:13,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:13,746 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:13,746 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323972074] [2022-03-01 15:34:13,746 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323972074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:13,746 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:13,746 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:34:13,747 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704170932] [2022-03-01 15:34:13,747 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:13,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:34:13,747 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:13,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:34:13,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:34:13,747 INFO L87 Difference]: Start difference. First operand 5440 states and 14295 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:17,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:17,178 INFO L93 Difference]: Finished difference Result 6248 states and 16395 transitions. [2022-03-01 15:34:17,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:34:17,178 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:34:17,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:17,186 INFO L225 Difference]: With dead ends: 6248 [2022-03-01 15:34:17,187 INFO L226 Difference]: Without dead ends: 5976 [2022-03-01 15:34:17,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 608 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=1004, Invalid=3286, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:34:17,188 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 944 mSDsluCounter, 8924 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 944 SdHoareTripleChecker+Valid, 9275 SdHoareTripleChecker+Invalid, 1940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:17,188 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [944 Valid, 9275 Invalid, 1940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:34:17,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5976 states. [2022-03-01 15:34:17,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5976 to 5428. [2022-03-01 15:34:17,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.6294453657637735) internal successors, (14270), 5427 states have internal predecessors, (14270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:17,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14270 transitions. [2022-03-01 15:34:17,256 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14270 transitions. Word has length 137 [2022-03-01 15:34:17,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:17,257 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14270 transitions. [2022-03-01 15:34:17,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:17,257 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14270 transitions. [2022-03-01 15:34:17,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:34:17,262 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:17,262 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:17,262 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable187 [2022-03-01 15:34:17,262 INFO L402 AbstractCegarLoop]: === Iteration 189 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:17,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:17,262 INFO L85 PathProgramCache]: Analyzing trace with hash 768052087, now seen corresponding path program 31 times [2022-03-01 15:34:17,263 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:17,263 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1695271586] [2022-03-01 15:34:17,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:17,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:17,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:17,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:17,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:17,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1695271586] [2022-03-01 15:34:17,743 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1695271586] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:17,743 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:17,743 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:34:17,743 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227561114] [2022-03-01 15:34:17,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:17,743 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:34:17,743 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:17,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:34:17,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:34:17,744 INFO L87 Difference]: Start difference. First operand 5428 states and 14270 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:22,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:22,879 INFO L93 Difference]: Finished difference Result 6193 states and 16254 transitions. [2022-03-01 15:34:22,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-01 15:34:22,880 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:34:22,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:22,888 INFO L225 Difference]: With dead ends: 6193 [2022-03-01 15:34:22,888 INFO L226 Difference]: Without dead ends: 5908 [2022-03-01 15:34:22,888 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1287, Invalid=3543, Unknown=0, NotChecked=0, Total=4830 [2022-03-01 15:34:22,888 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 1041 mSDsluCounter, 8697 mSDsCounter, 0 mSdLazyCounter, 1829 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1041 SdHoareTripleChecker+Valid, 9047 SdHoareTripleChecker+Invalid, 1832 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:22,889 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1041 Valid, 9047 Invalid, 1832 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1829 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:34:22,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5908 states. [2022-03-01 15:34:22,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5908 to 5436. [2022-03-01 15:34:22,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.628886844526219) internal successors, (14288), 5435 states have internal predecessors, (14288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:22,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14288 transitions. [2022-03-01 15:34:22,964 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14288 transitions. Word has length 137 [2022-03-01 15:34:22,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:22,964 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14288 transitions. [2022-03-01 15:34:22,965 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:22,965 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14288 transitions. [2022-03-01 15:34:22,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:34:22,970 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:22,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:22,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable188 [2022-03-01 15:34:22,970 INFO L402 AbstractCegarLoop]: === Iteration 190 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:22,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:22,971 INFO L85 PathProgramCache]: Analyzing trace with hash 2012014181, now seen corresponding path program 32 times [2022-03-01 15:34:22,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:22,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909356961] [2022-03-01 15:34:22,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:22,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:23,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:23,466 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:23,466 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909356961] [2022-03-01 15:34:23,466 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909356961] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:23,466 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:23,466 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:34:23,466 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448768399] [2022-03-01 15:34:23,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:23,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:34:23,466 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:23,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:34:23,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:34:23,467 INFO L87 Difference]: Start difference. First operand 5436 states and 14288 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:27,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:27,021 INFO L93 Difference]: Finished difference Result 6201 states and 16272 transitions. [2022-03-01 15:34:27,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:34:27,022 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:34:27,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:27,030 INFO L225 Difference]: With dead ends: 6201 [2022-03-01 15:34:27,030 INFO L226 Difference]: Without dead ends: 5944 [2022-03-01 15:34:27,031 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 604 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=1104, Invalid=3186, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:34:27,031 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 980 mSDsluCounter, 8822 mSDsCounter, 0 mSdLazyCounter, 1882 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 980 SdHoareTripleChecker+Valid, 9179 SdHoareTripleChecker+Invalid, 1885 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1882 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:27,031 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [980 Valid, 9179 Invalid, 1885 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1882 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:34:27,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-03-01 15:34:27,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-03-01 15:34:27,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6282404853833423) internal successors, (14295), 5439 states have internal predecessors, (14295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:27,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14295 transitions. [2022-03-01 15:34:27,103 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14295 transitions. Word has length 137 [2022-03-01 15:34:27,103 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:27,103 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14295 transitions. [2022-03-01 15:34:27,103 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:27,103 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14295 transitions. [2022-03-01 15:34:27,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:34:27,109 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:27,109 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:27,109 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable189 [2022-03-01 15:34:27,109 INFO L402 AbstractCegarLoop]: === Iteration 191 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:27,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:27,109 INFO L85 PathProgramCache]: Analyzing trace with hash -790131681, now seen corresponding path program 33 times [2022-03-01 15:34:27,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:27,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204400904] [2022-03-01 15:34:27,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:27,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:27,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:27,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:27,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:27,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204400904] [2022-03-01 15:34:27,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204400904] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:27,601 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:27,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:34:27,601 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994454797] [2022-03-01 15:34:27,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:27,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:34:27,601 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:27,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:34:27,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:34:27,602 INFO L87 Difference]: Start difference. First operand 5440 states and 14295 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:30,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:30,922 INFO L93 Difference]: Finished difference Result 6172 states and 16190 transitions. [2022-03-01 15:34:30,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:34:30,923 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:34:30,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:30,932 INFO L225 Difference]: With dead ends: 6172 [2022-03-01 15:34:30,932 INFO L226 Difference]: Without dead ends: 5904 [2022-03-01 15:34:30,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=970, Invalid=3190, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:34:30,933 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 896 mSDsluCounter, 9172 mSDsCounter, 0 mSdLazyCounter, 1973 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 896 SdHoareTripleChecker+Valid, 9518 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1973 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:30,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [896 Valid, 9518 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1973 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:34:30,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5904 states. [2022-03-01 15:34:30,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5904 to 5432. [2022-03-01 15:34:30,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.628797643159639) internal successors, (14277), 5431 states have internal predecessors, (14277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:31,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14277 transitions. [2022-03-01 15:34:31,006 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14277 transitions. Word has length 137 [2022-03-01 15:34:31,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:31,006 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14277 transitions. [2022-03-01 15:34:31,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:31,006 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14277 transitions. [2022-03-01 15:34:31,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:34:31,011 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:31,012 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:31,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable190 [2022-03-01 15:34:31,012 INFO L402 AbstractCegarLoop]: === Iteration 192 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:31,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:31,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1782450251, now seen corresponding path program 34 times [2022-03-01 15:34:31,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:31,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147333316] [2022-03-01 15:34:31,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:31,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:31,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:31,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:31,459 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:31,459 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147333316] [2022-03-01 15:34:31,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147333316] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:31,459 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:31,460 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:34:31,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985402244] [2022-03-01 15:34:31,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:31,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:34:31,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:31,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:34:31,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:34:31,460 INFO L87 Difference]: Start difference. First operand 5432 states and 14277 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:37,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:37,499 INFO L93 Difference]: Finished difference Result 6304 states and 16532 transitions. [2022-03-01 15:34:37,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-01 15:34:37,499 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:34:37,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:37,507 INFO L225 Difference]: With dead ends: 6304 [2022-03-01 15:34:37,507 INFO L226 Difference]: Without dead ends: 6013 [2022-03-01 15:34:37,507 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 917 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1227, Invalid=4029, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:34:37,508 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 977 mSDsluCounter, 9487 mSDsCounter, 0 mSdLazyCounter, 2032 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 9817 SdHoareTripleChecker+Invalid, 2035 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:37,508 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [977 Valid, 9817 Invalid, 2035 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2032 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:34:37,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6013 states. [2022-03-01 15:34:37,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6013 to 5436. [2022-03-01 15:34:37,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6281508739650414) internal successors, (14284), 5435 states have internal predecessors, (14284), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:37,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14284 transitions. [2022-03-01 15:34:37,568 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14284 transitions. Word has length 137 [2022-03-01 15:34:37,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:37,568 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14284 transitions. [2022-03-01 15:34:37,568 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:37,568 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14284 transitions. [2022-03-01 15:34:37,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:34:37,589 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:37,589 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:37,589 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191 [2022-03-01 15:34:37,590 INFO L402 AbstractCegarLoop]: === Iteration 193 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:37,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:37,590 INFO L85 PathProgramCache]: Analyzing trace with hash 2094335391, now seen corresponding path program 35 times [2022-03-01 15:34:37,590 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:37,590 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163289347] [2022-03-01 15:34:37,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:37,590 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:37,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:38,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:38,046 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:38,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163289347] [2022-03-01 15:34:38,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163289347] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:38,046 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:38,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:34:38,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445597788] [2022-03-01 15:34:38,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:38,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:34:38,047 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:38,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:34:38,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:34:38,047 INFO L87 Difference]: Start difference. First operand 5436 states and 14284 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:42,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:42,167 INFO L93 Difference]: Finished difference Result 6201 states and 16268 transitions. [2022-03-01 15:34:42,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:34:42,168 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:34:42,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:42,176 INFO L225 Difference]: With dead ends: 6201 [2022-03-01 15:34:42,176 INFO L226 Difference]: Without dead ends: 5944 [2022-03-01 15:34:42,176 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 534 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1062, Invalid=3098, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:34:42,177 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 1031 mSDsluCounter, 8867 mSDsCounter, 0 mSdLazyCounter, 1900 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1031 SdHoareTripleChecker+Valid, 9220 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:42,177 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1031 Valid, 9220 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1900 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:34:42,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-03-01 15:34:42,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-03-01 15:34:42,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6275050560764845) internal successors, (14291), 5439 states have internal predecessors, (14291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:42,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14291 transitions. [2022-03-01 15:34:42,242 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14291 transitions. Word has length 137 [2022-03-01 15:34:42,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:42,242 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14291 transitions. [2022-03-01 15:34:42,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:42,242 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14291 transitions. [2022-03-01 15:34:42,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:34:42,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:42,247 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:42,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable192 [2022-03-01 15:34:42,248 INFO L402 AbstractCegarLoop]: === Iteration 194 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:42,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:42,248 INFO L85 PathProgramCache]: Analyzing trace with hash -707810471, now seen corresponding path program 36 times [2022-03-01 15:34:42,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:42,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323900781] [2022-03-01 15:34:42,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:42,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:42,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:42,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:42,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:42,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323900781] [2022-03-01 15:34:42,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323900781] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:42,702 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:42,702 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:34:42,702 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295989105] [2022-03-01 15:34:42,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:42,702 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:34:42,702 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:42,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:34:42,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:34:42,703 INFO L87 Difference]: Start difference. First operand 5440 states and 14291 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:47,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:34:47,896 INFO L93 Difference]: Finished difference Result 6172 states and 16186 transitions. [2022-03-01 15:34:47,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:34:47,897 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:34:47,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:34:47,904 INFO L225 Difference]: With dead ends: 6172 [2022-03-01 15:34:47,905 INFO L226 Difference]: Without dead ends: 5896 [2022-03-01 15:34:47,905 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1009, Invalid=3281, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:34:47,905 INFO L933 BasicCegarLoop]: 528 mSDtfsCounter, 946 mSDsluCounter, 8931 mSDsCounter, 0 mSdLazyCounter, 1924 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 946 SdHoareTripleChecker+Valid, 9288 SdHoareTripleChecker+Invalid, 1927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:34:47,905 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [946 Valid, 9288 Invalid, 1927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1924 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:34:47,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5896 states. [2022-03-01 15:34:47,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5896 to 5424. [2022-03-01 15:34:47,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5424 states, 5423 states have (on average 2.629356444772266) internal successors, (14259), 5423 states have internal predecessors, (14259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:47,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5424 states to 5424 states and 14259 transitions. [2022-03-01 15:34:47,979 INFO L78 Accepts]: Start accepts. Automaton has 5424 states and 14259 transitions. Word has length 137 [2022-03-01 15:34:47,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:34:47,979 INFO L470 AbstractCegarLoop]: Abstraction has 5424 states and 14259 transitions. [2022-03-01 15:34:47,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:34:47,979 INFO L276 IsEmpty]: Start isEmpty. Operand 5424 states and 14259 transitions. [2022-03-01 15:34:47,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:34:47,984 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:34:47,984 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:34:47,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable193 [2022-03-01 15:34:47,984 INFO L402 AbstractCegarLoop]: === Iteration 195 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:34:47,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:34:47,985 INFO L85 PathProgramCache]: Analyzing trace with hash -726853067, now seen corresponding path program 37 times [2022-03-01 15:34:47,985 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:34:47,985 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250563536] [2022-03-01 15:34:47,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:34:47,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:34:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:34:48,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:34:48,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:34:48,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250563536] [2022-03-01 15:34:48,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250563536] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:34:48,512 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:34:48,512 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:34:48,512 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010953765] [2022-03-01 15:34:48,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:34:48,512 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:34:48,512 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:34:48,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:34:48,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:34:48,512 INFO L87 Difference]: Start difference. First operand 5424 states and 14259 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:03,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:03,266 INFO L93 Difference]: Finished difference Result 6568 states and 17212 transitions. [2022-03-01 15:35:03,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-01 15:35:03,266 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:35:03,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:03,274 INFO L225 Difference]: With dead ends: 6568 [2022-03-01 15:35:03,274 INFO L226 Difference]: Without dead ends: 6153 [2022-03-01 15:35:03,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1668 ImplicationChecksByTransitivity, 14.1s TimeCoverageRelationStatistics Valid=1857, Invalid=5975, Unknown=0, NotChecked=0, Total=7832 [2022-03-01 15:35:03,275 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1302 mSDsluCounter, 9380 mSDsCounter, 0 mSdLazyCounter, 2013 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1302 SdHoareTripleChecker+Valid, 9711 SdHoareTripleChecker+Invalid, 2016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:03,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1302 Valid, 9711 Invalid, 2016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2013 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:35:03,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6153 states. [2022-03-01 15:35:03,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6153 to 5436. [2022-03-01 15:35:03,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.6274149034038636) internal successors, (14280), 5435 states have internal predecessors, (14280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:03,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14280 transitions. [2022-03-01 15:35:03,337 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14280 transitions. Word has length 137 [2022-03-01 15:35:03,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:03,337 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14280 transitions. [2022-03-01 15:35:03,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:03,337 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14280 transitions. [2022-03-01 15:35:03,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:35:03,342 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:03,342 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:03,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable194 [2022-03-01 15:35:03,342 INFO L402 AbstractCegarLoop]: === Iteration 196 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:03,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:03,343 INFO L85 PathProgramCache]: Analyzing trace with hash 1667771741, now seen corresponding path program 38 times [2022-03-01 15:35:03,343 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:03,343 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902266327] [2022-03-01 15:35:03,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:03,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:03,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:03,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:03,803 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:03,803 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902266327] [2022-03-01 15:35:03,803 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902266327] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:03,803 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:03,803 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:35:03,803 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [261333407] [2022-03-01 15:35:03,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:03,803 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:35:03,803 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:03,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:35:03,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:35:03,804 INFO L87 Difference]: Start difference. First operand 5436 states and 14280 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:09,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:09,468 INFO L93 Difference]: Finished difference Result 6417 states and 16816 transitions. [2022-03-01 15:35:09,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-01 15:35:09,469 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:35:09,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:09,475 INFO L225 Difference]: With dead ends: 6417 [2022-03-01 15:35:09,475 INFO L226 Difference]: Without dead ends: 6095 [2022-03-01 15:35:09,476 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1254 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1546, Invalid=5096, Unknown=0, NotChecked=0, Total=6642 [2022-03-01 15:35:09,476 INFO L933 BasicCegarLoop]: 542 mSDtfsCounter, 1124 mSDsluCounter, 9817 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 10137 SdHoareTripleChecker+Invalid, 2078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:09,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 10137 Invalid, 2078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:35:09,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6095 states. [2022-03-01 15:35:09,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6095 to 5440. [2022-03-01 15:35:09,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.6267696267696268) internal successors, (14287), 5439 states have internal predecessors, (14287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:09,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14287 transitions. [2022-03-01 15:35:09,537 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14287 transitions. Word has length 137 [2022-03-01 15:35:09,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:09,537 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14287 transitions. [2022-03-01 15:35:09,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:09,538 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14287 transitions. [2022-03-01 15:35:09,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:35:09,543 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:09,543 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:09,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable195 [2022-03-01 15:35:09,543 INFO L402 AbstractCegarLoop]: === Iteration 197 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:09,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:09,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1963374577, now seen corresponding path program 39 times [2022-03-01 15:35:09,543 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:09,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295640609] [2022-03-01 15:35:09,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:09,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:09,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:10,029 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:10,030 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:10,030 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295640609] [2022-03-01 15:35:10,030 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295640609] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:10,030 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:10,030 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:35:10,030 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389688171] [2022-03-01 15:35:10,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:10,030 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:35:10,030 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:10,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:35:10,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:35:10,031 INFO L87 Difference]: Start difference. First operand 5440 states and 14287 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:15,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:15,236 INFO L93 Difference]: Finished difference Result 6328 states and 16586 transitions. [2022-03-01 15:35:15,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 15:35:15,236 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:35:15,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:15,243 INFO L225 Difference]: With dead ends: 6328 [2022-03-01 15:35:15,244 INFO L226 Difference]: Without dead ends: 6037 [2022-03-01 15:35:15,244 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 961 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1250, Invalid=4152, Unknown=0, NotChecked=0, Total=5402 [2022-03-01 15:35:15,244 INFO L933 BasicCegarLoop]: 533 mSDtfsCounter, 990 mSDsluCounter, 9487 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 990 SdHoareTripleChecker+Valid, 9817 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:15,244 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [990 Valid, 9817 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:35:15,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6037 states. [2022-03-01 15:35:15,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6037 to 5444. [2022-03-01 15:35:15,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5444 states, 5443 states have (on average 2.6261252985485943) internal successors, (14294), 5443 states have internal predecessors, (14294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:15,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5444 states to 5444 states and 14294 transitions. [2022-03-01 15:35:15,307 INFO L78 Accepts]: Start accepts. Automaton has 5444 states and 14294 transitions. Word has length 137 [2022-03-01 15:35:15,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:15,308 INFO L470 AbstractCegarLoop]: Abstraction has 5444 states and 14294 transitions. [2022-03-01 15:35:15,308 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:15,308 INFO L276 IsEmpty]: Start isEmpty. Operand 5444 states and 14294 transitions. [2022-03-01 15:35:15,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:35:15,313 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:15,313 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:15,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable196 [2022-03-01 15:35:15,313 INFO L402 AbstractCegarLoop]: === Iteration 198 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:15,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:15,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1545192923, now seen corresponding path program 40 times [2022-03-01 15:35:15,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:15,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389677756] [2022-03-01 15:35:15,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:15,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:15,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:15,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:15,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389677756] [2022-03-01 15:35:15,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389677756] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:15,780 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:15,781 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:35:15,781 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832031641] [2022-03-01 15:35:15,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:15,781 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:35:15,781 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:15,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:35:15,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:35:15,781 INFO L87 Difference]: Start difference. First operand 5444 states and 14294 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:19,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:19,108 INFO L93 Difference]: Finished difference Result 6209 states and 16278 transitions. [2022-03-01 15:35:19,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:35:19,108 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:35:19,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:19,116 INFO L225 Difference]: With dead ends: 6209 [2022-03-01 15:35:19,116 INFO L226 Difference]: Without dead ends: 5952 [2022-03-01 15:35:19,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 529 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=993, Invalid=2913, Unknown=0, NotChecked=0, Total=3906 [2022-03-01 15:35:19,116 INFO L933 BasicCegarLoop]: 517 mSDtfsCounter, 932 mSDsluCounter, 9060 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 932 SdHoareTripleChecker+Valid, 9406 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:19,116 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [932 Valid, 9406 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:35:19,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5952 states. [2022-03-01 15:35:19,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5952 to 5448. [2022-03-01 15:35:19,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5448 states, 5447 states have (on average 2.625481916651368) internal successors, (14301), 5447 states have internal predecessors, (14301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:19,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5448 states to 5448 states and 14301 transitions. [2022-03-01 15:35:19,176 INFO L78 Accepts]: Start accepts. Automaton has 5448 states and 14301 transitions. Word has length 137 [2022-03-01 15:35:19,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:19,177 INFO L470 AbstractCegarLoop]: Abstraction has 5448 states and 14301 transitions. [2022-03-01 15:35:19,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:19,177 INFO L276 IsEmpty]: Start isEmpty. Operand 5448 states and 14301 transitions. [2022-03-01 15:35:19,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:35:19,182 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:19,182 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:19,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable197 [2022-03-01 15:35:19,182 INFO L402 AbstractCegarLoop]: === Iteration 199 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:19,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:19,182 INFO L85 PathProgramCache]: Analyzing trace with hash -1256952939, now seen corresponding path program 41 times [2022-03-01 15:35:19,182 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:19,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19337377] [2022-03-01 15:35:19,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:19,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:19,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:19,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:19,666 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:19,666 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19337377] [2022-03-01 15:35:19,666 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19337377] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:19,666 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:19,666 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:35:19,666 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505096480] [2022-03-01 15:35:19,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:19,666 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:35:19,666 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:19,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:35:19,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:35:19,667 INFO L87 Difference]: Start difference. First operand 5448 states and 14301 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:24,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:24,082 INFO L93 Difference]: Finished difference Result 6180 states and 16196 transitions. [2022-03-01 15:35:24,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:35:24,083 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:35:24,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:24,089 INFO L225 Difference]: With dead ends: 6180 [2022-03-01 15:35:24,089 INFO L226 Difference]: Without dead ends: 5884 [2022-03-01 15:35:24,089 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1001, Invalid=3289, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:35:24,090 INFO L933 BasicCegarLoop]: 525 mSDtfsCounter, 934 mSDsluCounter, 8432 mSDsCounter, 0 mSdLazyCounter, 1816 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 8800 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1816 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:24,090 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [934 Valid, 8800 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1816 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:35:24,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2022-03-01 15:35:24,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 5412. [2022-03-01 15:35:24,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 2.629088892995749) internal successors, (14226), 5411 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:24,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 14226 transitions. [2022-03-01 15:35:24,148 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 14226 transitions. Word has length 137 [2022-03-01 15:35:24,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:24,148 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 14226 transitions. [2022-03-01 15:35:24,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:24,148 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 14226 transitions. [2022-03-01 15:35:24,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:35:24,153 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:24,153 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:24,153 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198 [2022-03-01 15:35:24,153 INFO L402 AbstractCegarLoop]: === Iteration 200 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:24,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:24,153 INFO L85 PathProgramCache]: Analyzing trace with hash -2078955105, now seen corresponding path program 42 times [2022-03-01 15:35:24,153 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:24,154 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984296101] [2022-03-01 15:35:24,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:24,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:24,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:24,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:24,610 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:24,610 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984296101] [2022-03-01 15:35:24,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984296101] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:24,610 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:24,611 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:35:24,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [344087696] [2022-03-01 15:35:24,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:24,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:35:24,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:24,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:35:24,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:35:24,611 INFO L87 Difference]: Start difference. First operand 5412 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:30,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:30,335 INFO L93 Difference]: Finished difference Result 6810 states and 17762 transitions. [2022-03-01 15:35:30,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-01 15:35:30,335 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:35:30,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:30,343 INFO L225 Difference]: With dead ends: 6810 [2022-03-01 15:35:30,343 INFO L226 Difference]: Without dead ends: 6364 [2022-03-01 15:35:30,344 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1864 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=2132, Invalid=6610, Unknown=0, NotChecked=0, Total=8742 [2022-03-01 15:35:30,344 INFO L933 BasicCegarLoop]: 557 mSDtfsCounter, 1376 mSDsluCounter, 9566 mSDsCounter, 0 mSdLazyCounter, 1990 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1376 SdHoareTripleChecker+Valid, 9888 SdHoareTripleChecker+Invalid, 1993 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1990 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:30,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1376 Valid, 9888 Invalid, 1993 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1990 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:35:30,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6364 states. [2022-03-01 15:35:30,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6364 to 5416. [2022-03-01 15:35:30,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5415 states have (on average 2.6284395198522623) internal successors, (14233), 5415 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:30,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14233 transitions. [2022-03-01 15:35:30,410 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14233 transitions. Word has length 137 [2022-03-01 15:35:30,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:30,410 INFO L470 AbstractCegarLoop]: Abstraction has 5416 states and 14233 transitions. [2022-03-01 15:35:30,410 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:30,410 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14233 transitions. [2022-03-01 15:35:30,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:35:30,416 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:30,416 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:30,416 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable199 [2022-03-01 15:35:30,416 INFO L402 AbstractCegarLoop]: === Iteration 201 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:30,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:30,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1490094691, now seen corresponding path program 43 times [2022-03-01 15:35:30,416 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:30,416 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795930511] [2022-03-01 15:35:30,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:30,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:30,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:30,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:30,906 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:30,906 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795930511] [2022-03-01 15:35:30,906 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795930511] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:30,906 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:30,906 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:35:30,907 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143208160] [2022-03-01 15:35:30,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:30,907 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:35:30,907 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:30,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:35:30,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:35:30,907 INFO L87 Difference]: Start difference. First operand 5416 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:36,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:36,164 INFO L93 Difference]: Finished difference Result 6584 states and 17244 transitions. [2022-03-01 15:35:36,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-01 15:35:36,165 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:35:36,165 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:36,172 INFO L225 Difference]: With dead ends: 6584 [2022-03-01 15:35:36,172 INFO L226 Difference]: Without dead ends: 6169 [2022-03-01 15:35:36,172 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1659 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=1876, Invalid=6134, Unknown=0, NotChecked=0, Total=8010 [2022-03-01 15:35:36,172 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 1258 mSDsluCounter, 9367 mSDsCounter, 0 mSdLazyCounter, 1976 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1258 SdHoareTripleChecker+Valid, 9702 SdHoareTripleChecker+Invalid, 1979 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:36,173 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1258 Valid, 9702 Invalid, 1979 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1976 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:35:36,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6169 states. [2022-03-01 15:35:36,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6169 to 5428. [2022-03-01 15:35:36,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.626497143910079) internal successors, (14254), 5427 states have internal predecessors, (14254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:36,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14254 transitions. [2022-03-01 15:35:36,230 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14254 transitions. Word has length 137 [2022-03-01 15:35:36,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:36,230 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14254 transitions. [2022-03-01 15:35:36,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:36,230 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14254 transitions. [2022-03-01 15:35:36,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:35:36,235 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:36,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:36,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable200 [2022-03-01 15:35:36,235 INFO L402 AbstractCegarLoop]: === Iteration 202 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:36,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:36,235 INFO L85 PathProgramCache]: Analyzing trace with hash 341231203, now seen corresponding path program 44 times [2022-03-01 15:35:36,235 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:36,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459208369] [2022-03-01 15:35:36,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:36,236 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:36,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:36,692 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:36,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459208369] [2022-03-01 15:35:36,692 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459208369] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:36,692 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:36,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:35:36,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989462941] [2022-03-01 15:35:36,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:36,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:35:36,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:36,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:35:36,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:35:36,693 INFO L87 Difference]: Start difference. First operand 5428 states and 14254 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:41,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:41,226 INFO L93 Difference]: Finished difference Result 6433 states and 16848 transitions. [2022-03-01 15:35:41,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-01 15:35:41,226 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:35:41,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:41,233 INFO L225 Difference]: With dead ends: 6433 [2022-03-01 15:35:41,233 INFO L226 Difference]: Without dead ends: 6111 [2022-03-01 15:35:41,233 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1262 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1532, Invalid=5110, Unknown=0, NotChecked=0, Total=6642 [2022-03-01 15:35:41,233 INFO L933 BasicCegarLoop]: 541 mSDtfsCounter, 1176 mSDsluCounter, 9187 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1176 SdHoareTripleChecker+Valid, 9526 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:41,233 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1176 Valid, 9526 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:35:41,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6111 states. [2022-03-01 15:35:41,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6111 to 5432. [2022-03-01 15:35:41,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6258515927085253) internal successors, (14261), 5431 states have internal predecessors, (14261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:41,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14261 transitions. [2022-03-01 15:35:41,289 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14261 transitions. Word has length 137 [2022-03-01 15:35:41,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:41,289 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14261 transitions. [2022-03-01 15:35:41,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:41,290 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14261 transitions. [2022-03-01 15:35:41,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:35:41,295 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:41,295 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:41,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable201 [2022-03-01 15:35:41,295 INFO L402 AbstractCegarLoop]: === Iteration 203 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:41,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:41,295 INFO L85 PathProgramCache]: Analyzing trace with hash 636834039, now seen corresponding path program 45 times [2022-03-01 15:35:41,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:41,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056728085] [2022-03-01 15:35:41,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:41,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:41,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:41,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:41,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:41,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056728085] [2022-03-01 15:35:41,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056728085] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:41,765 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:41,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:35:41,765 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530424756] [2022-03-01 15:35:41,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:41,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:35:41,765 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:41,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:35:41,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:35:41,765 INFO L87 Difference]: Start difference. First operand 5432 states and 14261 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:45,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:45,738 INFO L93 Difference]: Finished difference Result 6344 states and 16618 transitions. [2022-03-01 15:35:45,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 15:35:45,738 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:35:45,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:45,744 INFO L225 Difference]: With dead ends: 6344 [2022-03-01 15:35:45,744 INFO L226 Difference]: Without dead ends: 6053 [2022-03-01 15:35:45,745 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 912 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1238, Invalid=4164, Unknown=0, NotChecked=0, Total=5402 [2022-03-01 15:35:45,745 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 1017 mSDsluCounter, 9607 mSDsCounter, 0 mSdLazyCounter, 1988 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1017 SdHoareTripleChecker+Valid, 9934 SdHoareTripleChecker+Invalid, 1991 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1988 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:45,745 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1017 Valid, 9934 Invalid, 1991 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1988 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:35:45,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6053 states. [2022-03-01 15:35:45,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6053 to 5436. [2022-03-01 15:35:45,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.625206991720331) internal successors, (14268), 5435 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:45,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14268 transitions. [2022-03-01 15:35:45,803 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14268 transitions. Word has length 137 [2022-03-01 15:35:45,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:45,803 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14268 transitions. [2022-03-01 15:35:45,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:45,803 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14268 transitions. [2022-03-01 15:35:45,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:35:45,808 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:45,808 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:45,808 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202 [2022-03-01 15:35:45,808 INFO L402 AbstractCegarLoop]: === Iteration 204 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:45,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:45,809 INFO L85 PathProgramCache]: Analyzing trace with hash 218652385, now seen corresponding path program 46 times [2022-03-01 15:35:45,809 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:45,809 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367262952] [2022-03-01 15:35:45,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:45,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:45,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:46,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:46,269 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:46,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367262952] [2022-03-01 15:35:46,269 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367262952] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:46,269 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:46,269 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:35:46,269 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072810266] [2022-03-01 15:35:46,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:46,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:35:46,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:46,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:35:46,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:35:46,270 INFO L87 Difference]: Start difference. First operand 5436 states and 14268 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:50,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:50,018 INFO L93 Difference]: Finished difference Result 6201 states and 16252 transitions. [2022-03-01 15:35:50,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:35:50,018 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:35:50,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:50,025 INFO L225 Difference]: With dead ends: 6201 [2022-03-01 15:35:50,025 INFO L226 Difference]: Without dead ends: 5944 [2022-03-01 15:35:50,025 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 458 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=957, Invalid=2825, Unknown=0, NotChecked=0, Total=3782 [2022-03-01 15:35:50,025 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 991 mSDsluCounter, 8841 mSDsCounter, 0 mSdLazyCounter, 1817 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 991 SdHoareTripleChecker+Valid, 9192 SdHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:50,025 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [991 Valid, 9192 Invalid, 1820 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1817 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:35:50,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5944 states. [2022-03-01 15:35:50,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5944 to 5440. [2022-03-01 15:35:50,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.624563338849053) internal successors, (14275), 5439 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:50,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14275 transitions. [2022-03-01 15:35:50,080 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14275 transitions. Word has length 137 [2022-03-01 15:35:50,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:50,081 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14275 transitions. [2022-03-01 15:35:50,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:50,081 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14275 transitions. [2022-03-01 15:35:50,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:35:50,086 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:50,086 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:50,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable203 [2022-03-01 15:35:50,086 INFO L402 AbstractCegarLoop]: === Iteration 205 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:50,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:50,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1711473819, now seen corresponding path program 47 times [2022-03-01 15:35:50,086 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:50,086 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013143552] [2022-03-01 15:35:50,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:50,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:50,563 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:50,563 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:50,563 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013143552] [2022-03-01 15:35:50,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013143552] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:50,563 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:50,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:35:50,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468993140] [2022-03-01 15:35:50,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:50,564 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:35:50,564 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:50,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:35:50,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:35:50,564 INFO L87 Difference]: Start difference. First operand 5440 states and 14275 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:54,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:35:54,986 INFO L93 Difference]: Finished difference Result 6172 states and 16170 transitions. [2022-03-01 15:35:54,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:35:54,986 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:35:54,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:35:54,993 INFO L225 Difference]: With dead ends: 6172 [2022-03-01 15:35:54,993 INFO L226 Difference]: Without dead ends: 5828 [2022-03-01 15:35:54,993 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 654 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=996, Invalid=3294, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:35:54,993 INFO L933 BasicCegarLoop]: 524 mSDtfsCounter, 911 mSDsluCounter, 8791 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 911 SdHoareTripleChecker+Valid, 9144 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:35:54,993 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [911 Valid, 9144 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:35:55,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5828 states. [2022-03-01 15:35:55,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5828 to 5356. [2022-03-01 15:35:55,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5356 states, 5355 states have (on average 2.637535014005602) internal successors, (14124), 5355 states have internal predecessors, (14124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:55,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5356 states to 5356 states and 14124 transitions. [2022-03-01 15:35:55,053 INFO L78 Accepts]: Start accepts. Automaton has 5356 states and 14124 transitions. Word has length 137 [2022-03-01 15:35:55,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:35:55,054 INFO L470 AbstractCegarLoop]: Abstraction has 5356 states and 14124 transitions. [2022-03-01 15:35:55,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:35:55,054 INFO L276 IsEmpty]: Start isEmpty. Operand 5356 states and 14124 transitions. [2022-03-01 15:35:55,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:35:55,059 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:35:55,059 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:35:55,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable204 [2022-03-01 15:35:55,059 INFO L402 AbstractCegarLoop]: === Iteration 206 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:35:55,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:35:55,060 INFO L85 PathProgramCache]: Analyzing trace with hash -332532207, now seen corresponding path program 48 times [2022-03-01 15:35:55,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:35:55,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076297676] [2022-03-01 15:35:55,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:35:55,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:35:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:35:55,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:35:55,518 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:35:55,518 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076297676] [2022-03-01 15:35:55,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076297676] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:35:55,518 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:35:55,518 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:35:55,518 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431866676] [2022-03-01 15:35:55,518 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:35:55,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:35:55,518 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:35:55,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:35:55,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=676, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:35:55,519 INFO L87 Difference]: Start difference. First operand 5356 states and 14124 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:05,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:05,371 INFO L93 Difference]: Finished difference Result 7132 states and 18616 transitions. [2022-03-01 15:36:05,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-01 15:36:05,371 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:36:05,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:05,379 INFO L225 Difference]: With dead ends: 7132 [2022-03-01 15:36:05,379 INFO L226 Difference]: Without dead ends: 6283 [2022-03-01 15:36:05,380 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2070 ImplicationChecksByTransitivity, 9.1s TimeCoverageRelationStatistics Valid=2360, Invalid=7146, Unknown=0, NotChecked=0, Total=9506 [2022-03-01 15:36:05,380 INFO L933 BasicCegarLoop]: 586 mSDtfsCounter, 1604 mSDsluCounter, 10123 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1604 SdHoareTripleChecker+Valid, 10456 SdHoareTripleChecker+Invalid, 2105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:05,380 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1604 Valid, 10456 Invalid, 2105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:36:05,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6283 states. [2022-03-01 15:36:05,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6283 to 5412. [2022-03-01 15:36:05,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5412 states, 5411 states have (on average 2.629088892995749) internal successors, (14226), 5411 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:05,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5412 states to 5412 states and 14226 transitions. [2022-03-01 15:36:05,464 INFO L78 Accepts]: Start accepts. Automaton has 5412 states and 14226 transitions. Word has length 137 [2022-03-01 15:36:05,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:05,464 INFO L470 AbstractCegarLoop]: Abstraction has 5412 states and 14226 transitions. [2022-03-01 15:36:05,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:05,465 INFO L276 IsEmpty]: Start isEmpty. Operand 5412 states and 14226 transitions. [2022-03-01 15:36:05,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:36:05,470 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:05,470 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:05,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable205 [2022-03-01 15:36:05,470 INFO L402 AbstractCegarLoop]: === Iteration 207 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:05,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:05,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1638794001, now seen corresponding path program 49 times [2022-03-01 15:36:05,470 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:05,470 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848007646] [2022-03-01 15:36:05,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:05,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:05,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:05,970 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:05,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:05,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848007646] [2022-03-01 15:36:05,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848007646] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:05,971 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:05,971 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:36:05,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227350140] [2022-03-01 15:36:05,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:05,971 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:36:05,971 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:05,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:36:05,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:36:05,972 INFO L87 Difference]: Start difference. First operand 5412 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:12,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:12,989 INFO L93 Difference]: Finished difference Result 6698 states and 17458 transitions. [2022-03-01 15:36:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-01 15:36:12,990 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:36:12,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:12,997 INFO L225 Difference]: With dead ends: 6698 [2022-03-01 15:36:12,997 INFO L226 Difference]: Without dead ends: 6252 [2022-03-01 15:36:12,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1960 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=2094, Invalid=6648, Unknown=0, NotChecked=0, Total=8742 [2022-03-01 15:36:12,998 INFO L933 BasicCegarLoop]: 568 mSDtfsCounter, 1536 mSDsluCounter, 8963 mSDsCounter, 0 mSdLazyCounter, 1857 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1536 SdHoareTripleChecker+Valid, 9320 SdHoareTripleChecker+Invalid, 1860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1857 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:12,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1536 Valid, 9320 Invalid, 1860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1857 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:36:13,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6252 states. [2022-03-01 15:36:13,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6252 to 5416. [2022-03-01 15:36:13,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5416 states, 5415 states have (on average 2.6284395198522623) internal successors, (14233), 5415 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:13,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5416 states to 5416 states and 14233 transitions. [2022-03-01 15:36:13,056 INFO L78 Accepts]: Start accepts. Automaton has 5416 states and 14233 transitions. Word has length 137 [2022-03-01 15:36:13,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:13,056 INFO L470 AbstractCegarLoop]: Abstraction has 5416 states and 14233 transitions. [2022-03-01 15:36:13,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:13,056 INFO L276 IsEmpty]: Start isEmpty. Operand 5416 states and 14233 transitions. [2022-03-01 15:36:13,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:36:13,061 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:13,061 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:13,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable206 [2022-03-01 15:36:13,062 INFO L402 AbstractCegarLoop]: === Iteration 208 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:13,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:13,062 INFO L85 PathProgramCache]: Analyzing trace with hash -2067312881, now seen corresponding path program 50 times [2022-03-01 15:36:13,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:13,062 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1792667199] [2022-03-01 15:36:13,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:13,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:13,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:13,530 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:13,530 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:13,530 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1792667199] [2022-03-01 15:36:13,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1792667199] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:13,530 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:13,530 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:36:13,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645579468] [2022-03-01 15:36:13,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:13,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:36:13,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:13,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:36:13,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:36:13,531 INFO L87 Difference]: Start difference. First operand 5416 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:18,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:18,371 INFO L93 Difference]: Finished difference Result 6460 states and 16911 transitions. [2022-03-01 15:36:18,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-01 15:36:18,371 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:36:18,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:18,378 INFO L225 Difference]: With dead ends: 6460 [2022-03-01 15:36:18,378 INFO L226 Difference]: Without dead ends: 6045 [2022-03-01 15:36:18,379 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1745 ImplicationChecksByTransitivity, 4.2s TimeCoverageRelationStatistics Valid=1842, Invalid=6168, Unknown=0, NotChecked=0, Total=8010 [2022-03-01 15:36:18,379 INFO L933 BasicCegarLoop]: 560 mSDtfsCounter, 1184 mSDsluCounter, 9027 mSDsCounter, 0 mSdLazyCounter, 1907 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 9382 SdHoareTripleChecker+Invalid, 1910 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1907 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:18,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1184 Valid, 9382 Invalid, 1910 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1907 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:36:18,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6045 states. [2022-03-01 15:36:18,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6045 to 5428. [2022-03-01 15:36:18,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5428 states, 5427 states have (on average 2.626497143910079) internal successors, (14254), 5427 states have internal predecessors, (14254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:18,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5428 states to 5428 states and 14254 transitions. [2022-03-01 15:36:18,439 INFO L78 Accepts]: Start accepts. Automaton has 5428 states and 14254 transitions. Word has length 137 [2022-03-01 15:36:18,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:18,439 INFO L470 AbstractCegarLoop]: Abstraction has 5428 states and 14254 transitions. [2022-03-01 15:36:18,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:18,439 INFO L276 IsEmpty]: Start isEmpty. Operand 5428 states and 14254 transitions. [2022-03-01 15:36:18,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:36:18,444 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:18,445 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:18,445 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable207 [2022-03-01 15:36:18,445 INFO L402 AbstractCegarLoop]: === Iteration 209 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:18,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:18,445 INFO L85 PathProgramCache]: Analyzing trace with hash -235986987, now seen corresponding path program 51 times [2022-03-01 15:36:18,445 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:18,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848709323] [2022-03-01 15:36:18,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:18,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:18,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:18,932 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:18,932 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:18,932 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848709323] [2022-03-01 15:36:18,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848709323] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:18,933 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:18,933 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:36:18,933 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1948800630] [2022-03-01 15:36:18,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:18,933 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:36:18,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:18,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:36:18,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:36:18,933 INFO L87 Difference]: Start difference. First operand 5428 states and 14254 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:24,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:24,598 INFO L93 Difference]: Finished difference Result 6305 states and 16504 transitions. [2022-03-01 15:36:24,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-01 15:36:24,599 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:36:24,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:24,606 INFO L225 Difference]: With dead ends: 6305 [2022-03-01 15:36:24,606 INFO L226 Difference]: Without dead ends: 5983 [2022-03-01 15:36:24,606 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1336 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=1506, Invalid=5136, Unknown=0, NotChecked=0, Total=6642 [2022-03-01 15:36:24,607 INFO L933 BasicCegarLoop]: 551 mSDtfsCounter, 1169 mSDsluCounter, 9495 mSDsCounter, 0 mSdLazyCounter, 1948 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1169 SdHoareTripleChecker+Valid, 9841 SdHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:24,607 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1169 Valid, 9841 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1948 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:36:24,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5983 states. [2022-03-01 15:36:24,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5983 to 5432. [2022-03-01 15:36:24,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5432 states, 5431 states have (on average 2.6258515927085253) internal successors, (14261), 5431 states have internal predecessors, (14261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:24,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5432 states to 5432 states and 14261 transitions. [2022-03-01 15:36:24,664 INFO L78 Accepts]: Start accepts. Automaton has 5432 states and 14261 transitions. Word has length 137 [2022-03-01 15:36:24,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:24,664 INFO L470 AbstractCegarLoop]: Abstraction has 5432 states and 14261 transitions. [2022-03-01 15:36:24,664 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:24,664 INFO L276 IsEmpty]: Start isEmpty. Operand 5432 states and 14261 transitions. [2022-03-01 15:36:24,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:36:24,669 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:24,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:24,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable208 [2022-03-01 15:36:24,669 INFO L402 AbstractCegarLoop]: === Iteration 210 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:24,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:24,670 INFO L85 PathProgramCache]: Analyzing trace with hash 59615849, now seen corresponding path program 52 times [2022-03-01 15:36:24,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:24,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219044264] [2022-03-01 15:36:24,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:24,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:24,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:25,184 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:25,185 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:25,185 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219044264] [2022-03-01 15:36:25,185 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219044264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:25,185 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:25,185 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:36:25,185 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412813908] [2022-03-01 15:36:25,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:25,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:36:25,185 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:25,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:36:25,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:36:25,186 INFO L87 Difference]: Start difference. First operand 5432 states and 14261 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:30,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:30,121 INFO L93 Difference]: Finished difference Result 6212 states and 16263 transitions. [2022-03-01 15:36:30,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 15:36:30,122 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:36:30,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:30,130 INFO L225 Difference]: With dead ends: 6212 [2022-03-01 15:36:30,130 INFO L226 Difference]: Without dead ends: 5921 [2022-03-01 15:36:30,130 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 974 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=1220, Invalid=4182, Unknown=0, NotChecked=0, Total=5402 [2022-03-01 15:36:30,131 INFO L933 BasicCegarLoop]: 543 mSDtfsCounter, 1157 mSDsluCounter, 9072 mSDsCounter, 0 mSdLazyCounter, 1875 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1157 SdHoareTripleChecker+Valid, 9433 SdHoareTripleChecker+Invalid, 1878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1875 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:30,131 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1157 Valid, 9433 Invalid, 1878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1875 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:36:30,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5921 states. [2022-03-01 15:36:30,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5921 to 5436. [2022-03-01 15:36:30,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5436 states, 5435 states have (on average 2.625206991720331) internal successors, (14268), 5435 states have internal predecessors, (14268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:30,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5436 states to 5436 states and 14268 transitions. [2022-03-01 15:36:30,195 INFO L78 Accepts]: Start accepts. Automaton has 5436 states and 14268 transitions. Word has length 137 [2022-03-01 15:36:30,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:30,195 INFO L470 AbstractCegarLoop]: Abstraction has 5436 states and 14268 transitions. [2022-03-01 15:36:30,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:30,195 INFO L276 IsEmpty]: Start isEmpty. Operand 5436 states and 14268 transitions. [2022-03-01 15:36:30,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:36:30,201 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:30,201 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:30,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable209 [2022-03-01 15:36:30,201 INFO L402 AbstractCegarLoop]: === Iteration 211 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:30,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:30,201 INFO L85 PathProgramCache]: Analyzing trace with hash -358565805, now seen corresponding path program 53 times [2022-03-01 15:36:30,201 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:30,201 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018295166] [2022-03-01 15:36:30,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:30,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:30,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:30,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:30,680 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:30,680 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018295166] [2022-03-01 15:36:30,680 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018295166] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:30,680 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:30,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:36:30,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119849265] [2022-03-01 15:36:30,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:30,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:36:30,681 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:30,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:36:30,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:36:30,681 INFO L87 Difference]: Start difference. First operand 5436 states and 14268 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:34,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:34,652 INFO L93 Difference]: Finished difference Result 6057 states and 15864 transitions. [2022-03-01 15:36:34,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:36:34,652 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:36:34,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:34,660 INFO L225 Difference]: With dead ends: 6057 [2022-03-01 15:36:34,660 INFO L226 Difference]: Without dead ends: 5800 [2022-03-01 15:36:34,660 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 460 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=953, Invalid=2829, Unknown=0, NotChecked=0, Total=3782 [2022-03-01 15:36:34,660 INFO L933 BasicCegarLoop]: 528 mSDtfsCounter, 994 mSDsluCounter, 9198 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 9554 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:34,661 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 9554 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:36:34,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5800 states. [2022-03-01 15:36:34,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5800 to 5440. [2022-03-01 15:36:34,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5440 states, 5439 states have (on average 2.624563338849053) internal successors, (14275), 5439 states have internal predecessors, (14275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:34,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5440 states to 5440 states and 14275 transitions. [2022-03-01 15:36:34,723 INFO L78 Accepts]: Start accepts. Automaton has 5440 states and 14275 transitions. Word has length 137 [2022-03-01 15:36:34,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:34,723 INFO L470 AbstractCegarLoop]: Abstraction has 5440 states and 14275 transitions. [2022-03-01 15:36:34,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:34,723 INFO L276 IsEmpty]: Start isEmpty. Operand 5440 states and 14275 transitions. [2022-03-01 15:36:34,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:36:34,728 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:34,728 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:34,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210 [2022-03-01 15:36:34,728 INFO L402 AbstractCegarLoop]: === Iteration 212 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:34,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:34,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1134255629, now seen corresponding path program 54 times [2022-03-01 15:36:34,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:34,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445995672] [2022-03-01 15:36:34,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:34,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:34,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:35,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:35,234 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:35,234 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445995672] [2022-03-01 15:36:35,234 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445995672] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:35,234 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:35,234 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:36:35,234 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199596192] [2022-03-01 15:36:35,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:35,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:36:35,234 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:35,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:36:35,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:36:35,235 INFO L87 Difference]: Start difference. First operand 5440 states and 14275 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:39,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:39,596 INFO L93 Difference]: Finished difference Result 6060 states and 15866 transitions. [2022-03-01 15:36:39,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:36:39,597 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:36:39,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:39,604 INFO L225 Difference]: With dead ends: 6060 [2022-03-01 15:36:39,604 INFO L226 Difference]: Without dead ends: 5720 [2022-03-01 15:36:39,605 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 660 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=984, Invalid=3306, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:36:39,605 INFO L933 BasicCegarLoop]: 529 mSDtfsCounter, 1003 mSDsluCounter, 9220 mSDsCounter, 0 mSdLazyCounter, 1900 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1003 SdHoareTripleChecker+Valid, 9573 SdHoareTripleChecker+Invalid, 1903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:39,605 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1003 Valid, 9573 Invalid, 1903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1900 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:36:39,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5720 states. [2022-03-01 15:36:39,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5720 to 5360. [2022-03-01 15:36:39,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5360 states, 5359 states have (on average 2.636872550849039) internal successors, (14131), 5359 states have internal predecessors, (14131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:39,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5360 states to 5360 states and 14131 transitions. [2022-03-01 15:36:39,662 INFO L78 Accepts]: Start accepts. Automaton has 5360 states and 14131 transitions. Word has length 137 [2022-03-01 15:36:39,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:39,662 INFO L470 AbstractCegarLoop]: Abstraction has 5360 states and 14131 transitions. [2022-03-01 15:36:39,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:39,662 INFO L276 IsEmpty]: Start isEmpty. Operand 5360 states and 14131 transitions. [2022-03-01 15:36:39,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:36:39,667 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:39,667 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:39,667 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable211 [2022-03-01 15:36:39,667 INFO L402 AbstractCegarLoop]: === Iteration 213 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:39,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:39,667 INFO L85 PathProgramCache]: Analyzing trace with hash 2101574831, now seen corresponding path program 55 times [2022-03-01 15:36:39,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:39,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180918334] [2022-03-01 15:36:39,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:39,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:40,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:40,149 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:40,150 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180918334] [2022-03-01 15:36:40,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180918334] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:40,150 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:40,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:36:40,150 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81496853] [2022-03-01 15:36:40,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:40,150 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:36:40,150 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:40,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:36:40,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:36:40,150 INFO L87 Difference]: Start difference. First operand 5360 states and 14131 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:48,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:48,693 INFO L93 Difference]: Finished difference Result 6376 states and 16694 transitions. [2022-03-01 15:36:48,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-01 15:36:48,693 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:36:48,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:48,699 INFO L225 Difference]: With dead ends: 6376 [2022-03-01 15:36:48,699 INFO L226 Difference]: Without dead ends: 5450 [2022-03-01 15:36:48,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2301 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=2645, Invalid=7657, Unknown=0, NotChecked=0, Total=10302 [2022-03-01 15:36:48,700 INFO L933 BasicCegarLoop]: 570 mSDtfsCounter, 1513 mSDsluCounter, 10438 mSDsCounter, 0 mSdLazyCounter, 2092 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1513 SdHoareTripleChecker+Valid, 10724 SdHoareTripleChecker+Invalid, 2095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2092 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:48,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1513 Valid, 10724 Invalid, 2095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2092 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:36:48,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5450 states. [2022-03-01 15:36:48,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5450 to 5314. [2022-03-01 15:36:48,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5314 states, 5313 states have (on average 2.6405044231131187) internal successors, (14029), 5313 states have internal predecessors, (14029), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:48,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5314 states to 5314 states and 14029 transitions. [2022-03-01 15:36:48,756 INFO L78 Accepts]: Start accepts. Automaton has 5314 states and 14029 transitions. Word has length 137 [2022-03-01 15:36:48,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:48,756 INFO L470 AbstractCegarLoop]: Abstraction has 5314 states and 14029 transitions. [2022-03-01 15:36:48,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:48,756 INFO L276 IsEmpty]: Start isEmpty. Operand 5314 states and 14029 transitions. [2022-03-01 15:36:48,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:36:48,761 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:48,761 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:48,761 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable212 [2022-03-01 15:36:48,761 INFO L402 AbstractCegarLoop]: === Iteration 214 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:48,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:48,762 INFO L85 PathProgramCache]: Analyzing trace with hash -1776317311, now seen corresponding path program 56 times [2022-03-01 15:36:48,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:48,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28557612] [2022-03-01 15:36:48,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:48,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:49,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:49,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:49,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28557612] [2022-03-01 15:36:49,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28557612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:49,232 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:49,232 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:36:49,232 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162760141] [2022-03-01 15:36:49,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:49,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:36:49,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:49,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:36:49,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:36:49,233 INFO L87 Difference]: Start difference. First operand 5314 states and 14029 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:55,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:36:55,462 INFO L93 Difference]: Finished difference Result 7714 states and 20217 transitions. [2022-03-01 15:36:55,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2022-03-01 15:36:55,462 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:36:55,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:36:55,470 INFO L225 Difference]: With dead ends: 7714 [2022-03-01 15:36:55,470 INFO L226 Difference]: Without dead ends: 6865 [2022-03-01 15:36:55,471 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2102 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2447, Invalid=7059, Unknown=0, NotChecked=0, Total=9506 [2022-03-01 15:36:55,471 INFO L933 BasicCegarLoop]: 571 mSDtfsCounter, 1549 mSDsluCounter, 8489 mSDsCounter, 0 mSdLazyCounter, 1922 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1549 SdHoareTripleChecker+Valid, 8864 SdHoareTripleChecker+Invalid, 1925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1922 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:36:55,471 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1549 Valid, 8864 Invalid, 1925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1922 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:36:55,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6865 states. [2022-03-01 15:36:55,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6865 to 5486. [2022-03-01 15:36:55,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5486 states, 5485 states have (on average 2.634457611668186) internal successors, (14450), 5485 states have internal predecessors, (14450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:55,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5486 states to 5486 states and 14450 transitions. [2022-03-01 15:36:55,533 INFO L78 Accepts]: Start accepts. Automaton has 5486 states and 14450 transitions. Word has length 137 [2022-03-01 15:36:55,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:36:55,533 INFO L470 AbstractCegarLoop]: Abstraction has 5486 states and 14450 transitions. [2022-03-01 15:36:55,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:36:55,533 INFO L276 IsEmpty]: Start isEmpty. Operand 5486 states and 14450 transitions. [2022-03-01 15:36:55,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:36:55,538 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:36:55,538 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:36:55,538 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable213 [2022-03-01 15:36:55,538 INFO L402 AbstractCegarLoop]: === Iteration 215 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:36:55,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:36:55,539 INFO L85 PathProgramCache]: Analyzing trace with hash 1636779669, now seen corresponding path program 57 times [2022-03-01 15:36:55,539 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:36:55,539 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240226980] [2022-03-01 15:36:55,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:36:55,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:36:55,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:36:56,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:36:56,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:36:56,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240226980] [2022-03-01 15:36:56,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240226980] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:36:56,004 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:36:56,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:36:56,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526550260] [2022-03-01 15:36:56,004 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:36:56,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:36:56,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:36:56,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:36:56,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:36:56,005 INFO L87 Difference]: Start difference. First operand 5486 states and 14450 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:02,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:02,689 INFO L93 Difference]: Finished difference Result 7448 states and 19509 transitions. [2022-03-01 15:37:02,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-01 15:37:02,689 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:37:02,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:02,698 INFO L225 Difference]: With dead ends: 7448 [2022-03-01 15:37:02,698 INFO L226 Difference]: Without dead ends: 7002 [2022-03-01 15:37:02,699 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1836 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=2168, Invalid=6574, Unknown=0, NotChecked=0, Total=8742 [2022-03-01 15:37:02,699 INFO L933 BasicCegarLoop]: 556 mSDtfsCounter, 1390 mSDsluCounter, 10176 mSDsCounter, 0 mSdLazyCounter, 2211 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1390 SdHoareTripleChecker+Valid, 10487 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:02,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1390 Valid, 10487 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2211 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:37:02,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7002 states. [2022-03-01 15:37:02,762 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7002 to 5490. [2022-03-01 15:37:02,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5490 states, 5489 states have (on average 2.6338130807068683) internal successors, (14457), 5489 states have internal predecessors, (14457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:02,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5490 states to 5490 states and 14457 transitions. [2022-03-01 15:37:02,776 INFO L78 Accepts]: Start accepts. Automaton has 5490 states and 14457 transitions. Word has length 137 [2022-03-01 15:37:02,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:02,777 INFO L470 AbstractCegarLoop]: Abstraction has 5490 states and 14457 transitions. [2022-03-01 15:37:02,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:02,777 INFO L276 IsEmpty]: Start isEmpty. Operand 5490 states and 14457 transitions. [2022-03-01 15:37:02,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:37:02,783 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:02,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:02,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable214 [2022-03-01 15:37:02,783 INFO L402 AbstractCegarLoop]: === Iteration 216 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:02,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:02,783 INFO L85 PathProgramCache]: Analyzing trace with hash -2069327213, now seen corresponding path program 58 times [2022-03-01 15:37:02,783 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:02,783 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239894935] [2022-03-01 15:37:02,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:02,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:03,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:03,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:03,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239894935] [2022-03-01 15:37:03,284 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239894935] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:03,284 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:03,284 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:37:03,284 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910170309] [2022-03-01 15:37:03,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:03,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:37:03,284 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:03,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:37:03,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:37:03,284 INFO L87 Difference]: Start difference. First operand 5490 states and 14457 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:08,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:08,405 INFO L93 Difference]: Finished difference Result 7222 states and 18991 transitions. [2022-03-01 15:37:08,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-01 15:37:08,405 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:37:08,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:08,414 INFO L225 Difference]: With dead ends: 7222 [2022-03-01 15:37:08,414 INFO L226 Difference]: Without dead ends: 6807 [2022-03-01 15:37:08,415 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1701 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1911, Invalid=6099, Unknown=0, NotChecked=0, Total=8010 [2022-03-01 15:37:08,415 INFO L933 BasicCegarLoop]: 549 mSDtfsCounter, 1182 mSDsluCounter, 8355 mSDsCounter, 0 mSdLazyCounter, 1914 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 8727 SdHoareTripleChecker+Invalid, 1917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1914 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:08,415 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1182 Valid, 8727 Invalid, 1917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1914 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:37:08,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6807 states. [2022-03-01 15:37:08,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6807 to 5502. [2022-03-01 15:37:08,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5502 states, 5501 states have (on average 2.631885111797855) internal successors, (14478), 5501 states have internal predecessors, (14478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:08,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5502 states to 5502 states and 14478 transitions. [2022-03-01 15:37:08,488 INFO L78 Accepts]: Start accepts. Automaton has 5502 states and 14478 transitions. Word has length 137 [2022-03-01 15:37:08,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:08,488 INFO L470 AbstractCegarLoop]: Abstraction has 5502 states and 14478 transitions. [2022-03-01 15:37:08,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:08,488 INFO L276 IsEmpty]: Start isEmpty. Operand 5502 states and 14478 transitions. [2022-03-01 15:37:08,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:37:08,493 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:08,494 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:08,494 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable215 [2022-03-01 15:37:08,494 INFO L402 AbstractCegarLoop]: === Iteration 217 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:08,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:08,494 INFO L85 PathProgramCache]: Analyzing trace with hash -238001319, now seen corresponding path program 59 times [2022-03-01 15:37:08,494 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:08,494 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992669324] [2022-03-01 15:37:08,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:08,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:08,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:08,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:08,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:08,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992669324] [2022-03-01 15:37:08,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992669324] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:08,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:08,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:37:08,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230613668] [2022-03-01 15:37:08,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:08,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:37:08,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:08,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:37:08,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:37:08,970 INFO L87 Difference]: Start difference. First operand 5502 states and 14478 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:14,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:14,767 INFO L93 Difference]: Finished difference Result 7071 states and 18595 transitions. [2022-03-01 15:37:14,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-01 15:37:14,767 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:37:14,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:14,775 INFO L225 Difference]: With dead ends: 7071 [2022-03-01 15:37:14,775 INFO L226 Difference]: Without dead ends: 6749 [2022-03-01 15:37:14,775 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1240 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=1556, Invalid=5086, Unknown=0, NotChecked=0, Total=6642 [2022-03-01 15:37:14,776 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 1130 mSDsluCounter, 9123 mSDsCounter, 0 mSdLazyCounter, 2036 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1130 SdHoareTripleChecker+Valid, 9471 SdHoareTripleChecker+Invalid, 2039 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2036 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:14,776 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1130 Valid, 9471 Invalid, 2039 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2036 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:37:14,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6749 states. [2022-03-01 15:37:14,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6749 to 5506. [2022-03-01 15:37:14,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5506 states, 5505 states have (on average 2.631244323342416) internal successors, (14485), 5505 states have internal predecessors, (14485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:14,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5506 states to 5506 states and 14485 transitions. [2022-03-01 15:37:14,833 INFO L78 Accepts]: Start accepts. Automaton has 5506 states and 14485 transitions. Word has length 137 [2022-03-01 15:37:14,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:14,834 INFO L470 AbstractCegarLoop]: Abstraction has 5506 states and 14485 transitions. [2022-03-01 15:37:14,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:14,834 INFO L276 IsEmpty]: Start isEmpty. Operand 5506 states and 14485 transitions. [2022-03-01 15:37:14,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:37:14,839 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:14,839 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:14,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable216 [2022-03-01 15:37:14,839 INFO L402 AbstractCegarLoop]: === Iteration 218 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:14,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:14,839 INFO L85 PathProgramCache]: Analyzing trace with hash 57601517, now seen corresponding path program 60 times [2022-03-01 15:37:14,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:14,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741563561] [2022-03-01 15:37:14,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:14,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:14,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:15,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:15,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:15,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741563561] [2022-03-01 15:37:15,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741563561] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:15,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:15,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:37:15,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881368797] [2022-03-01 15:37:15,301 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:15,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:37:15,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:15,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:37:15,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:37:15,302 INFO L87 Difference]: Start difference. First operand 5506 states and 14485 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:19,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:19,874 INFO L93 Difference]: Finished difference Result 6982 states and 18365 transitions. [2022-03-01 15:37:19,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 15:37:19,874 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:37:19,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:19,882 INFO L225 Difference]: With dead ends: 6982 [2022-03-01 15:37:19,882 INFO L226 Difference]: Without dead ends: 6691 [2022-03-01 15:37:19,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1254, Invalid=4148, Unknown=0, NotChecked=0, Total=5402 [2022-03-01 15:37:19,882 INFO L933 BasicCegarLoop]: 530 mSDtfsCounter, 1040 mSDsluCounter, 9081 mSDsCounter, 0 mSdLazyCounter, 2026 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1040 SdHoareTripleChecker+Valid, 9433 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2026 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:19,882 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1040 Valid, 9433 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2026 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:37:19,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6691 states. [2022-03-01 15:37:19,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6691 to 5510. [2022-03-01 15:37:19,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5510 states, 5509 states have (on average 2.6306044654202214) internal successors, (14492), 5509 states have internal predecessors, (14492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:19,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5510 states to 5510 states and 14492 transitions. [2022-03-01 15:37:19,942 INFO L78 Accepts]: Start accepts. Automaton has 5510 states and 14492 transitions. Word has length 137 [2022-03-01 15:37:19,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:19,943 INFO L470 AbstractCegarLoop]: Abstraction has 5510 states and 14492 transitions. [2022-03-01 15:37:19,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:19,943 INFO L276 IsEmpty]: Start isEmpty. Operand 5510 states and 14492 transitions. [2022-03-01 15:37:19,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:37:19,948 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:19,948 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:19,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable217 [2022-03-01 15:37:19,948 INFO L402 AbstractCegarLoop]: === Iteration 219 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:19,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:19,948 INFO L85 PathProgramCache]: Analyzing trace with hash -360580137, now seen corresponding path program 61 times [2022-03-01 15:37:19,948 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:19,948 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798268929] [2022-03-01 15:37:19,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:19,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:20,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:20,436 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:20,436 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798268929] [2022-03-01 15:37:20,436 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798268929] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:20,436 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:20,436 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:37:20,436 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642179174] [2022-03-01 15:37:20,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:20,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:37:20,436 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:20,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:37:20,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:37:20,437 INFO L87 Difference]: Start difference. First operand 5510 states and 14492 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:25,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:25,050 INFO L93 Difference]: Finished difference Result 6839 states and 17999 transitions. [2022-03-01 15:37:25,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:37:25,050 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:37:25,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:25,059 INFO L225 Difference]: With dead ends: 6839 [2022-03-01 15:37:25,059 INFO L226 Difference]: Without dead ends: 6582 [2022-03-01 15:37:25,060 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 492 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=961, Invalid=2821, Unknown=0, NotChecked=0, Total=3782 [2022-03-01 15:37:25,060 INFO L933 BasicCegarLoop]: 514 mSDtfsCounter, 960 mSDsluCounter, 7911 mSDsCounter, 0 mSdLazyCounter, 1781 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 960 SdHoareTripleChecker+Valid, 8292 SdHoareTripleChecker+Invalid, 1784 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1781 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:25,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [960 Valid, 8292 Invalid, 1784 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1781 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:37:25,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6582 states. [2022-03-01 15:37:25,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6582 to 5514. [2022-03-01 15:37:25,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5514 states, 5513 states have (on average 2.6299655360058045) internal successors, (14499), 5513 states have internal predecessors, (14499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:25,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5514 states to 5514 states and 14499 transitions. [2022-03-01 15:37:25,135 INFO L78 Accepts]: Start accepts. Automaton has 5514 states and 14499 transitions. Word has length 137 [2022-03-01 15:37:25,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:25,135 INFO L470 AbstractCegarLoop]: Abstraction has 5514 states and 14499 transitions. [2022-03-01 15:37:25,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:25,135 INFO L276 IsEmpty]: Start isEmpty. Operand 5514 states and 14499 transitions. [2022-03-01 15:37:25,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:37:25,141 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:25,141 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:25,141 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable218 [2022-03-01 15:37:25,141 INFO L402 AbstractCegarLoop]: === Iteration 220 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:25,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:25,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1132241297, now seen corresponding path program 62 times [2022-03-01 15:37:25,142 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:25,142 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058099175] [2022-03-01 15:37:25,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:25,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:25,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:25,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:25,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058099175] [2022-03-01 15:37:25,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058099175] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:25,605 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:25,605 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:37:25,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777298164] [2022-03-01 15:37:25,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:25,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:37:25,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:25,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:37:25,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:37:25,606 INFO L87 Difference]: Start difference. First operand 5514 states and 14499 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:29,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:29,541 INFO L93 Difference]: Finished difference Result 6810 states and 17917 transitions. [2022-03-01 15:37:29,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:37:29,541 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:37:29,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:29,548 INFO L225 Difference]: With dead ends: 6810 [2022-03-01 15:37:29,549 INFO L226 Difference]: Without dead ends: 6470 [2022-03-01 15:37:29,549 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 596 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1002, Invalid=3288, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:37:29,549 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 994 mSDsluCounter, 9156 mSDsCounter, 0 mSdLazyCounter, 2033 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 994 SdHoareTripleChecker+Valid, 9509 SdHoareTripleChecker+Invalid, 2036 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:29,549 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [994 Valid, 9509 Invalid, 2036 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2033 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:37:29,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6470 states. [2022-03-01 15:37:29,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6470 to 5434. [2022-03-01 15:37:29,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5434 states, 5433 states have (on average 2.6333517393705135) internal successors, (14307), 5433 states have internal predecessors, (14307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:29,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5434 states to 5434 states and 14307 transitions. [2022-03-01 15:37:29,607 INFO L78 Accepts]: Start accepts. Automaton has 5434 states and 14307 transitions. Word has length 137 [2022-03-01 15:37:29,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:29,608 INFO L470 AbstractCegarLoop]: Abstraction has 5434 states and 14307 transitions. [2022-03-01 15:37:29,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:29,608 INFO L276 IsEmpty]: Start isEmpty. Operand 5434 states and 14307 transitions. [2022-03-01 15:37:29,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:37:29,613 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:29,613 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:29,613 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable219 [2022-03-01 15:37:29,613 INFO L402 AbstractCegarLoop]: === Iteration 221 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:29,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:29,613 INFO L85 PathProgramCache]: Analyzing trace with hash 282815493, now seen corresponding path program 63 times [2022-03-01 15:37:29,613 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:29,613 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356517846] [2022-03-01 15:37:29,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:29,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:29,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:30,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:30,105 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:30,105 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356517846] [2022-03-01 15:37:30,105 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [356517846] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:30,105 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:30,105 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:37:30,106 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734034216] [2022-03-01 15:37:30,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:30,106 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:37:30,106 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:30,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:37:30,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:37:30,106 INFO L87 Difference]: Start difference. First operand 5434 states and 14307 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:36,504 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:36,504 INFO L93 Difference]: Finished difference Result 7195 states and 18944 transitions. [2022-03-01 15:37:36,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-01 15:37:36,505 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:37:36,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:36,513 INFO L225 Difference]: With dead ends: 7195 [2022-03-01 15:37:36,513 INFO L226 Difference]: Without dead ends: 6873 [2022-03-01 15:37:36,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1237 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=1561, Invalid=4919, Unknown=0, NotChecked=0, Total=6480 [2022-03-01 15:37:36,513 INFO L933 BasicCegarLoop]: 526 mSDtfsCounter, 1110 mSDsluCounter, 8069 mSDsCounter, 0 mSdLazyCounter, 1838 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1110 SdHoareTripleChecker+Valid, 8431 SdHoareTripleChecker+Invalid, 1841 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:36,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1110 Valid, 8431 Invalid, 1841 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1838 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:37:36,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6873 states. [2022-03-01 15:37:36,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6873 to 5458. [2022-03-01 15:37:36,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6331317573758475) internal successors, (14369), 5457 states have internal predecessors, (14369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:36,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14369 transitions. [2022-03-01 15:37:36,572 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14369 transitions. Word has length 137 [2022-03-01 15:37:36,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:36,572 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14369 transitions. [2022-03-01 15:37:36,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:36,572 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14369 transitions. [2022-03-01 15:37:36,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:37:36,577 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:36,577 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:36,577 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable220 [2022-03-01 15:37:36,577 INFO L402 AbstractCegarLoop]: === Iteration 222 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:36,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:36,577 INFO L85 PathProgramCache]: Analyzing trace with hash 578418329, now seen corresponding path program 64 times [2022-03-01 15:37:36,577 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:36,577 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598285778] [2022-03-01 15:37:36,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:36,577 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:36,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:37,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:37,044 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:37,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598285778] [2022-03-01 15:37:37,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598285778] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:37,044 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:37,044 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:37:37,044 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270366871] [2022-03-01 15:37:37,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:37,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:37:37,045 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:37,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:37:37,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:37:37,045 INFO L87 Difference]: Start difference. First operand 5458 states and 14369 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:41,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:41,716 INFO L93 Difference]: Finished difference Result 7138 states and 18802 transitions. [2022-03-01 15:37:41,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 15:37:41,716 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:37:41,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:41,724 INFO L225 Difference]: With dead ends: 7138 [2022-03-01 15:37:41,724 INFO L226 Difference]: Without dead ends: 6847 [2022-03-01 15:37:41,725 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 879 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=1284, Invalid=4118, Unknown=0, NotChecked=0, Total=5402 [2022-03-01 15:37:41,725 INFO L933 BasicCegarLoop]: 520 mSDtfsCounter, 1014 mSDsluCounter, 8818 mSDsCounter, 0 mSdLazyCounter, 1996 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1014 SdHoareTripleChecker+Valid, 9162 SdHoareTripleChecker+Invalid, 1999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1996 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:41,725 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1014 Valid, 9162 Invalid, 1999 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1996 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:37:41,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6847 states. [2022-03-01 15:37:41,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6847 to 5462. [2022-03-01 15:37:41,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6324848928767626) internal successors, (14376), 5461 states have internal predecessors, (14376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:41,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14376 transitions. [2022-03-01 15:37:41,787 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14376 transitions. Word has length 137 [2022-03-01 15:37:41,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:41,787 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14376 transitions. [2022-03-01 15:37:41,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:41,787 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14376 transitions. [2022-03-01 15:37:41,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:37:41,792 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:41,792 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:41,792 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable221 [2022-03-01 15:37:41,793 INFO L402 AbstractCegarLoop]: === Iteration 223 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:41,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:41,793 INFO L85 PathProgramCache]: Analyzing trace with hash 160236675, now seen corresponding path program 65 times [2022-03-01 15:37:41,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:41,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366176419] [2022-03-01 15:37:41,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:41,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:41,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:42,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:42,287 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:42,287 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366176419] [2022-03-01 15:37:42,287 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366176419] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:42,287 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:42,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:37:42,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339894833] [2022-03-01 15:37:42,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:42,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:37:42,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:42,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:37:42,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:37:42,288 INFO L87 Difference]: Start difference. First operand 5462 states and 14376 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:47,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:47,253 INFO L93 Difference]: Finished difference Result 7035 states and 18538 transitions. [2022-03-01 15:37:47,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:37:47,253 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:37:47,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:47,261 INFO L225 Difference]: With dead ends: 7035 [2022-03-01 15:37:47,261 INFO L226 Difference]: Without dead ends: 6778 [2022-03-01 15:37:47,261 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 544 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1031, Invalid=3001, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:37:47,262 INFO L933 BasicCegarLoop]: 508 mSDtfsCounter, 934 mSDsluCounter, 7672 mSDsCounter, 0 mSdLazyCounter, 1754 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 934 SdHoareTripleChecker+Valid, 8051 SdHoareTripleChecker+Invalid, 1757 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:47,262 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [934 Valid, 8051 Invalid, 1757 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1754 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:37:47,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6778 states. [2022-03-01 15:37:47,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6778 to 5466. [2022-03-01 15:37:47,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6318389752973466) internal successors, (14383), 5465 states have internal predecessors, (14383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:47,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14383 transitions. [2022-03-01 15:37:47,324 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14383 transitions. Word has length 137 [2022-03-01 15:37:47,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:47,324 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14383 transitions. [2022-03-01 15:37:47,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:47,324 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14383 transitions. [2022-03-01 15:37:47,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:37:47,329 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:47,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:47,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable222 [2022-03-01 15:37:47,330 INFO L402 AbstractCegarLoop]: === Iteration 224 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:47,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:47,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1653058109, now seen corresponding path program 66 times [2022-03-01 15:37:47,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:47,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296762525] [2022-03-01 15:37:47,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:47,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:47,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:47,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:47,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:47,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296762525] [2022-03-01 15:37:47,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296762525] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:47,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:47,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:37:47,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410541260] [2022-03-01 15:37:47,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:47,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:37:47,793 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:47,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:37:47,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:37:47,793 INFO L87 Difference]: Start difference. First operand 5466 states and 14383 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:51,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:51,803 INFO L93 Difference]: Finished difference Result 7006 states and 18456 transitions. [2022-03-01 15:37:51,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:37:51,803 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:37:51,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:51,812 INFO L225 Difference]: With dead ends: 7006 [2022-03-01 15:37:51,812 INFO L226 Difference]: Without dead ends: 6734 [2022-03-01 15:37:51,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 591 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1018, Invalid=3272, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:37:51,813 INFO L933 BasicCegarLoop]: 513 mSDtfsCounter, 962 mSDsluCounter, 8871 mSDsCounter, 0 mSdLazyCounter, 2010 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 962 SdHoareTripleChecker+Valid, 9220 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2010 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:51,813 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [962 Valid, 9220 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2010 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:37:51,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6734 states. [2022-03-01 15:37:51,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6734 to 5454. [2022-03-01 15:37:51,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6330460297084173) internal successors, (14358), 5453 states have internal predecessors, (14358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:51,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14358 transitions. [2022-03-01 15:37:51,888 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14358 transitions. Word has length 137 [2022-03-01 15:37:51,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:51,888 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14358 transitions. [2022-03-01 15:37:51,889 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:51,889 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14358 transitions. [2022-03-01 15:37:51,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:37:51,894 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:51,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:51,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable223 [2022-03-01 15:37:51,894 INFO L402 AbstractCegarLoop]: === Iteration 225 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:51,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:51,895 INFO L85 PathProgramCache]: Analyzing trace with hash -127096099, now seen corresponding path program 67 times [2022-03-01 15:37:51,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:51,895 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033452883] [2022-03-01 15:37:51,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:51,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:51,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:52,387 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:52,387 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033452883] [2022-03-01 15:37:52,387 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2033452883] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:52,387 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:52,387 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:37:52,388 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423873387] [2022-03-01 15:37:52,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:52,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:37:52,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:52,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:37:52,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:37:52,388 INFO L87 Difference]: Start difference. First operand 5454 states and 14358 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:58,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:37:58,479 INFO L93 Difference]: Finished difference Result 6951 states and 18315 transitions. [2022-03-01 15:37:58,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-01 15:37:58,479 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:37:58,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:37:58,487 INFO L225 Difference]: With dead ends: 6951 [2022-03-01 15:37:58,487 INFO L226 Difference]: Without dead ends: 6666 [2022-03-01 15:37:58,488 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 715 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1293, Invalid=3537, Unknown=0, NotChecked=0, Total=4830 [2022-03-01 15:37:58,488 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 1009 mSDsluCounter, 8701 mSDsCounter, 0 mSdLazyCounter, 1909 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1009 SdHoareTripleChecker+Valid, 9047 SdHoareTripleChecker+Invalid, 1912 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1909 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:37:58,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1009 Valid, 9047 Invalid, 1912 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1909 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:37:58,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6666 states. [2022-03-01 15:37:58,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6666 to 5462. [2022-03-01 15:37:58,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6324848928767626) internal successors, (14376), 5461 states have internal predecessors, (14376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:58,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14376 transitions. [2022-03-01 15:37:58,550 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14376 transitions. Word has length 137 [2022-03-01 15:37:58,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:37:58,550 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14376 transitions. [2022-03-01 15:37:58,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:37:58,550 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14376 transitions. [2022-03-01 15:37:58,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:37:58,568 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:37:58,568 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:37:58,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable224 [2022-03-01 15:37:58,569 INFO L402 AbstractCegarLoop]: === Iteration 226 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:37:58,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:37:58,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1116865995, now seen corresponding path program 68 times [2022-03-01 15:37:58,569 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:37:58,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799736967] [2022-03-01 15:37:58,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:37:58,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:37:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:37:59,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:37:59,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:37:59,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799736967] [2022-03-01 15:37:59,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799736967] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:37:59,032 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:37:59,032 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:37:59,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835518818] [2022-03-01 15:37:59,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:37:59,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:37:59,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:37:59,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:37:59,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:37:59,033 INFO L87 Difference]: Start difference. First operand 5462 states and 14376 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:03,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:03,452 INFO L93 Difference]: Finished difference Result 6959 states and 18333 transitions. [2022-03-01 15:38:03,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:38:03,453 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:38:03,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:03,462 INFO L225 Difference]: With dead ends: 6959 [2022-03-01 15:38:03,462 INFO L226 Difference]: Without dead ends: 6702 [2022-03-01 15:38:03,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1104, Invalid=3186, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:38:03,463 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 953 mSDsluCounter, 8710 mSDsCounter, 0 mSdLazyCounter, 1946 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 953 SdHoareTripleChecker+Valid, 9067 SdHoareTripleChecker+Invalid, 1949 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:03,463 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [953 Valid, 9067 Invalid, 1949 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1946 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:38:03,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2022-03-01 15:38:03,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 5466. [2022-03-01 15:38:03,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6318389752973466) internal successors, (14383), 5465 states have internal predecessors, (14383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:03,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14383 transitions. [2022-03-01 15:38:03,542 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14383 transitions. Word has length 137 [2022-03-01 15:38:03,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:03,542 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14383 transitions. [2022-03-01 15:38:03,542 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:03,542 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14383 transitions. [2022-03-01 15:38:03,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:38:03,547 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:03,547 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:03,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225 [2022-03-01 15:38:03,547 INFO L402 AbstractCegarLoop]: === Iteration 227 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:03,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:03,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1685279867, now seen corresponding path program 69 times [2022-03-01 15:38:03,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:03,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1702359692] [2022-03-01 15:38:03,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:03,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:03,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:04,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:04,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:04,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1702359692] [2022-03-01 15:38:04,023 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1702359692] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:04,023 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:04,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:38:04,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418267020] [2022-03-01 15:38:04,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:04,024 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:38:04,024 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:04,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:38:04,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:38:04,024 INFO L87 Difference]: Start difference. First operand 5466 states and 14383 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:07,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:07,856 INFO L93 Difference]: Finished difference Result 6930 states and 18251 transitions. [2022-03-01 15:38:07,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:38:07,856 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:38:07,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:07,866 INFO L225 Difference]: With dead ends: 6930 [2022-03-01 15:38:07,866 INFO L226 Difference]: Without dead ends: 6662 [2022-03-01 15:38:07,867 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 564 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=984, Invalid=3176, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:38:07,867 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 992 mSDsluCounter, 8714 mSDsCounter, 0 mSdLazyCounter, 1962 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 992 SdHoareTripleChecker+Valid, 9071 SdHoareTripleChecker+Invalid, 1965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:07,867 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [992 Valid, 9071 Invalid, 1965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1962 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:38:07,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6662 states. [2022-03-01 15:38:07,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6662 to 5458. [2022-03-01 15:38:07,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.632398753894081) internal successors, (14365), 5457 states have internal predecessors, (14365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:07,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14365 transitions. [2022-03-01 15:38:07,945 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14365 transitions. Word has length 137 [2022-03-01 15:38:07,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:07,945 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14365 transitions. [2022-03-01 15:38:07,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:07,945 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14365 transitions. [2022-03-01 15:38:07,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:38:07,951 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:07,951 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:07,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable226 [2022-03-01 15:38:07,951 INFO L402 AbstractCegarLoop]: === Iteration 228 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:07,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:07,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1617368859, now seen corresponding path program 70 times [2022-03-01 15:38:07,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:07,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588504595] [2022-03-01 15:38:07,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:07,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:07,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:08,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:08,447 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:08,447 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588504595] [2022-03-01 15:38:08,447 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588504595] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:08,447 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:08,447 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:38:08,447 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263817437] [2022-03-01 15:38:08,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:08,448 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:38:08,448 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:08,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:38:08,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:38:08,448 INFO L87 Difference]: Start difference. First operand 5458 states and 14365 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:12,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:12,987 INFO L93 Difference]: Finished difference Result 7062 states and 18593 transitions. [2022-03-01 15:38:12,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-01 15:38:12,988 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:38:12,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:12,997 INFO L225 Difference]: With dead ends: 7062 [2022-03-01 15:38:12,997 INFO L226 Difference]: Without dead ends: 6771 [2022-03-01 15:38:12,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 842 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1251, Invalid=4005, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:38:12,998 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1099 mSDsluCounter, 8760 mSDsCounter, 0 mSdLazyCounter, 1959 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1099 SdHoareTripleChecker+Valid, 9112 SdHoareTripleChecker+Invalid, 1962 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1959 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:12,998 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1099 Valid, 9112 Invalid, 1962 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1959 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:38:13,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2022-03-01 15:38:13,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 5462. [2022-03-01 15:38:13,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.63175242629555) internal successors, (14372), 5461 states have internal predecessors, (14372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:13,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14372 transitions. [2022-03-01 15:38:13,081 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14372 transitions. Word has length 137 [2022-03-01 15:38:13,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:13,081 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14372 transitions. [2022-03-01 15:38:13,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:13,082 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14372 transitions. [2022-03-01 15:38:13,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:38:13,086 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:13,087 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:13,087 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable227 [2022-03-01 15:38:13,087 INFO L402 AbstractCegarLoop]: === Iteration 229 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:13,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:13,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1199187205, now seen corresponding path program 71 times [2022-03-01 15:38:13,087 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:13,087 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982870573] [2022-03-01 15:38:13,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:13,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:13,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:13,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:13,544 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:13,544 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982870573] [2022-03-01 15:38:13,544 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982870573] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:13,544 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:13,544 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:38:13,544 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209730095] [2022-03-01 15:38:13,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:13,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:38:13,545 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:13,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:38:13,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:38:13,545 INFO L87 Difference]: Start difference. First operand 5462 states and 14372 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:17,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:17,825 INFO L93 Difference]: Finished difference Result 6959 states and 18329 transitions. [2022-03-01 15:38:17,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:38:17,825 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:38:17,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:17,835 INFO L225 Difference]: With dead ends: 6959 [2022-03-01 15:38:17,835 INFO L226 Difference]: Without dead ends: 6702 [2022-03-01 15:38:17,835 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=1065, Invalid=3095, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:38:17,836 INFO L933 BasicCegarLoop]: 510 mSDtfsCounter, 1011 mSDsluCounter, 9005 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1011 SdHoareTripleChecker+Valid, 9353 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:17,836 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1011 Valid, 9353 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1991 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:38:17,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6702 states. [2022-03-01 15:38:17,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6702 to 5466. [2022-03-01 15:38:17,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.631107044830741) internal successors, (14379), 5465 states have internal predecessors, (14379), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:17,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14379 transitions. [2022-03-01 15:38:17,916 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14379 transitions. Word has length 137 [2022-03-01 15:38:17,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:17,916 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14379 transitions. [2022-03-01 15:38:17,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:17,917 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14379 transitions. [2022-03-01 15:38:17,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:38:17,922 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:17,922 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:17,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable228 [2022-03-01 15:38:17,922 INFO L402 AbstractCegarLoop]: === Iteration 230 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:17,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:17,923 INFO L85 PathProgramCache]: Analyzing trace with hash -1602958657, now seen corresponding path program 72 times [2022-03-01 15:38:17,923 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:17,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835718737] [2022-03-01 15:38:17,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:17,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:17,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:18,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:18,380 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:18,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835718737] [2022-03-01 15:38:18,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835718737] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:18,380 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:18,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:38:18,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874993378] [2022-03-01 15:38:18,381 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:18,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:38:18,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:18,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:38:18,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:38:18,381 INFO L87 Difference]: Start difference. First operand 5466 states and 14379 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:22,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:22,352 INFO L93 Difference]: Finished difference Result 6930 states and 18247 transitions. [2022-03-01 15:38:22,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:38:22,352 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:38:22,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:22,361 INFO L225 Difference]: With dead ends: 6930 [2022-03-01 15:38:22,361 INFO L226 Difference]: Without dead ends: 6654 [2022-03-01 15:38:22,362 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 585 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1023, Invalid=3267, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:38:22,362 INFO L933 BasicCegarLoop]: 518 mSDtfsCounter, 1123 mSDsluCounter, 8549 mSDsCounter, 0 mSdLazyCounter, 1925 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1123 SdHoareTripleChecker+Valid, 8915 SdHoareTripleChecker+Invalid, 1928 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1925 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:22,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1123 Valid, 8915 Invalid, 1928 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1925 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:38:22,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6654 states. [2022-03-01 15:38:22,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6654 to 5450. [2022-03-01 15:38:22,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5450 states, 5449 states have (on average 2.6329601761791155) internal successors, (14347), 5449 states have internal predecessors, (14347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:22,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5450 states to 5450 states and 14347 transitions. [2022-03-01 15:38:22,451 INFO L78 Accepts]: Start accepts. Automaton has 5450 states and 14347 transitions. Word has length 137 [2022-03-01 15:38:22,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:22,451 INFO L470 AbstractCegarLoop]: Abstraction has 5450 states and 14347 transitions. [2022-03-01 15:38:22,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:22,451 INFO L276 IsEmpty]: Start isEmpty. Operand 5450 states and 14347 transitions. [2022-03-01 15:38:22,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:38:22,456 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:22,456 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:22,456 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable229 [2022-03-01 15:38:22,456 INFO L402 AbstractCegarLoop]: === Iteration 231 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:22,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:22,457 INFO L85 PathProgramCache]: Analyzing trace with hash -1622001253, now seen corresponding path program 73 times [2022-03-01 15:38:22,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:22,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78101796] [2022-03-01 15:38:22,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:22,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:22,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:22,936 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:22,936 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78101796] [2022-03-01 15:38:22,936 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [78101796] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:22,936 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:22,936 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:38:22,937 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161145519] [2022-03-01 15:38:22,937 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:22,937 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:38:22,937 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:22,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:38:22,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:38:22,937 INFO L87 Difference]: Start difference. First operand 5450 states and 14347 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:28,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:28,981 INFO L93 Difference]: Finished difference Result 7326 states and 19273 transitions. [2022-03-01 15:38:28,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-01 15:38:28,981 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:38:28,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:28,989 INFO L225 Difference]: With dead ends: 7326 [2022-03-01 15:38:28,989 INFO L226 Difference]: Without dead ends: 6911 [2022-03-01 15:38:28,990 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1565 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=1905, Invalid=5927, Unknown=0, NotChecked=0, Total=7832 [2022-03-01 15:38:28,990 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 1203 mSDsluCounter, 9692 mSDsCounter, 0 mSdLazyCounter, 2151 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1203 SdHoareTripleChecker+Valid, 10007 SdHoareTripleChecker+Invalid, 2154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2151 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:28,990 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1203 Valid, 10007 Invalid, 2154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2151 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:38:28,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6911 states. [2022-03-01 15:38:29,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6911 to 5462. [2022-03-01 15:38:29,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.631019959714338) internal successors, (14368), 5461 states have internal predecessors, (14368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:29,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14368 transitions. [2022-03-01 15:38:29,053 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14368 transitions. Word has length 137 [2022-03-01 15:38:29,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:29,053 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14368 transitions. [2022-03-01 15:38:29,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:29,053 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14368 transitions. [2022-03-01 15:38:29,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:38:29,058 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:29,058 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:29,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable230 [2022-03-01 15:38:29,058 INFO L402 AbstractCegarLoop]: === Iteration 232 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:29,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:29,059 INFO L85 PathProgramCache]: Analyzing trace with hash 772623555, now seen corresponding path program 74 times [2022-03-01 15:38:29,059 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:29,059 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961860738] [2022-03-01 15:38:29,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:29,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:29,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:29,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:29,514 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:29,514 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961860738] [2022-03-01 15:38:29,514 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961860738] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:29,514 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:29,515 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:38:29,515 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [689925326] [2022-03-01 15:38:29,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:29,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:38:29,515 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:29,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:38:29,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:38:29,515 INFO L87 Difference]: Start difference. First operand 5462 states and 14368 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:34,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:34,921 INFO L93 Difference]: Finished difference Result 7175 states and 18877 transitions. [2022-03-01 15:38:34,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-01 15:38:34,922 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:38:34,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:34,930 INFO L225 Difference]: With dead ends: 7175 [2022-03-01 15:38:34,930 INFO L226 Difference]: Without dead ends: 6853 [2022-03-01 15:38:34,930 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1225 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1585, Invalid=5057, Unknown=0, NotChecked=0, Total=6642 [2022-03-01 15:38:34,930 INFO L933 BasicCegarLoop]: 532 mSDtfsCounter, 1085 mSDsluCounter, 9656 mSDsCounter, 0 mSdLazyCounter, 2133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 9977 SdHoareTripleChecker+Invalid, 2136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:34,930 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1085 Valid, 9977 Invalid, 2136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2133 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:38:34,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6853 states. [2022-03-01 15:38:34,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6853 to 5466. [2022-03-01 15:38:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.6303751143641354) internal successors, (14375), 5465 states have internal predecessors, (14375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:34,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14375 transitions. [2022-03-01 15:38:34,991 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14375 transitions. Word has length 137 [2022-03-01 15:38:34,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:34,991 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14375 transitions. [2022-03-01 15:38:34,991 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:34,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14375 transitions. [2022-03-01 15:38:34,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:38:34,997 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:34,997 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:34,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable231 [2022-03-01 15:38:34,997 INFO L402 AbstractCegarLoop]: === Iteration 233 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:34,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:34,997 INFO L85 PathProgramCache]: Analyzing trace with hash 1068226391, now seen corresponding path program 75 times [2022-03-01 15:38:34,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:34,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351338392] [2022-03-01 15:38:34,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:34,997 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:35,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:35,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:35,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351338392] [2022-03-01 15:38:35,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351338392] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:35,475 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:35,475 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:38:35,475 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161390200] [2022-03-01 15:38:35,476 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:35,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:38:35,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:35,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:38:35,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:38:35,476 INFO L87 Difference]: Start difference. First operand 5466 states and 14375 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:40,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:40,373 INFO L93 Difference]: Finished difference Result 7086 states and 18647 transitions. [2022-03-01 15:38:40,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 15:38:40,373 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:38:40,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:40,382 INFO L225 Difference]: With dead ends: 7086 [2022-03-01 15:38:40,382 INFO L226 Difference]: Without dead ends: 6795 [2022-03-01 15:38:40,382 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 886 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1274, Invalid=4128, Unknown=0, NotChecked=0, Total=5402 [2022-03-01 15:38:40,383 INFO L933 BasicCegarLoop]: 523 mSDtfsCounter, 1118 mSDsluCounter, 9315 mSDsCounter, 0 mSdLazyCounter, 2075 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1118 SdHoareTripleChecker+Valid, 9649 SdHoareTripleChecker+Invalid, 2078 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:40,383 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1118 Valid, 9649 Invalid, 2078 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2075 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:38:40,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6795 states. [2022-03-01 15:38:40,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6795 to 5470. [2022-03-01 15:38:40,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5470 states, 5469 states have (on average 2.6297312122874383) internal successors, (14382), 5469 states have internal predecessors, (14382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:40,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5470 states to 5470 states and 14382 transitions. [2022-03-01 15:38:40,452 INFO L78 Accepts]: Start accepts. Automaton has 5470 states and 14382 transitions. Word has length 137 [2022-03-01 15:38:40,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:40,452 INFO L470 AbstractCegarLoop]: Abstraction has 5470 states and 14382 transitions. [2022-03-01 15:38:40,452 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:40,452 INFO L276 IsEmpty]: Start isEmpty. Operand 5470 states and 14382 transitions. [2022-03-01 15:38:40,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:38:40,458 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:40,458 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:40,458 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable232 [2022-03-01 15:38:40,458 INFO L402 AbstractCegarLoop]: === Iteration 234 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:40,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:40,458 INFO L85 PathProgramCache]: Analyzing trace with hash 650044737, now seen corresponding path program 76 times [2022-03-01 15:38:40,458 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:40,458 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740172088] [2022-03-01 15:38:40,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:40,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:40,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:40,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:40,949 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:40,949 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740172088] [2022-03-01 15:38:40,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740172088] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:40,949 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:40,949 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:38:40,950 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [127853489] [2022-03-01 15:38:40,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:40,950 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:38:40,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:40,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:38:40,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:38:40,950 INFO L87 Difference]: Start difference. First operand 5470 states and 14382 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:45,305 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:45,305 INFO L93 Difference]: Finished difference Result 6967 states and 18339 transitions. [2022-03-01 15:38:45,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-01 15:38:45,305 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:38:45,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:45,315 INFO L225 Difference]: With dead ends: 6967 [2022-03-01 15:38:45,315 INFO L226 Difference]: Without dead ends: 6710 [2022-03-01 15:38:45,315 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 474 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=993, Invalid=2913, Unknown=0, NotChecked=0, Total=3906 [2022-03-01 15:38:45,316 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 993 mSDsluCounter, 8629 mSDsCounter, 0 mSdLazyCounter, 1920 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 993 SdHoareTripleChecker+Valid, 8984 SdHoareTripleChecker+Invalid, 1923 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1920 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:45,316 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [993 Valid, 8984 Invalid, 1923 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1920 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:38:45,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6710 states. [2022-03-01 15:38:45,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6710 to 5474. [2022-03-01 15:38:45,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5474 states, 5473 states have (on average 2.6290882514160425) internal successors, (14389), 5473 states have internal predecessors, (14389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:45,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5474 states to 5474 states and 14389 transitions. [2022-03-01 15:38:45,389 INFO L78 Accepts]: Start accepts. Automaton has 5474 states and 14389 transitions. Word has length 137 [2022-03-01 15:38:45,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:45,389 INFO L470 AbstractCegarLoop]: Abstraction has 5474 states and 14389 transitions. [2022-03-01 15:38:45,389 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:45,390 INFO L276 IsEmpty]: Start isEmpty. Operand 5474 states and 14389 transitions. [2022-03-01 15:38:45,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:38:45,395 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:45,395 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:45,395 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable233 [2022-03-01 15:38:45,395 INFO L402 AbstractCegarLoop]: === Iteration 235 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:45,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:45,396 INFO L85 PathProgramCache]: Analyzing trace with hash 2142866171, now seen corresponding path program 77 times [2022-03-01 15:38:45,396 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:45,396 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524676868] [2022-03-01 15:38:45,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:45,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:45,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:45,859 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:45,859 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524676868] [2022-03-01 15:38:45,859 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524676868] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:45,859 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:45,859 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:38:45,859 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294771585] [2022-03-01 15:38:45,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:45,859 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:38:45,859 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:45,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:38:45,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:38:45,860 INFO L87 Difference]: Start difference. First operand 5474 states and 14389 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:49,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:38:49,843 INFO L93 Difference]: Finished difference Result 6938 states and 18257 transitions. [2022-03-01 15:38:49,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:38:49,843 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:38:49,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:38:49,852 INFO L225 Difference]: With dead ends: 6938 [2022-03-01 15:38:49,852 INFO L226 Difference]: Without dead ends: 6642 [2022-03-01 15:38:49,853 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1013, Invalid=3277, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:38:49,853 INFO L933 BasicCegarLoop]: 515 mSDtfsCounter, 976 mSDsluCounter, 8751 mSDsCounter, 0 mSdLazyCounter, 1961 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 976 SdHoareTripleChecker+Valid, 9106 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:38:49,853 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [976 Valid, 9106 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1961 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:38:49,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6642 states. [2022-03-01 15:38:49,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6642 to 5438. [2022-03-01 15:38:49,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5438 states, 5437 states have (on average 2.632701857642082) internal successors, (14314), 5437 states have internal predecessors, (14314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:49,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5438 states to 5438 states and 14314 transitions. [2022-03-01 15:38:49,933 INFO L78 Accepts]: Start accepts. Automaton has 5438 states and 14314 transitions. Word has length 137 [2022-03-01 15:38:49,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:38:49,933 INFO L470 AbstractCegarLoop]: Abstraction has 5438 states and 14314 transitions. [2022-03-01 15:38:49,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:38:49,933 INFO L276 IsEmpty]: Start isEmpty. Operand 5438 states and 14314 transitions. [2022-03-01 15:38:49,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:38:49,939 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:38:49,940 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:38:49,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable234 [2022-03-01 15:38:49,940 INFO L402 AbstractCegarLoop]: === Iteration 236 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:38:49,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:38:49,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1320864005, now seen corresponding path program 78 times [2022-03-01 15:38:49,940 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:38:49,940 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15386775] [2022-03-01 15:38:49,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:38:49,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:38:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:38:50,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:38:50,461 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:38:50,461 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15386775] [2022-03-01 15:38:50,461 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [15386775] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:38:50,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:38:50,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:38:50,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665578781] [2022-03-01 15:38:50,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:38:50,462 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:38:50,462 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:38:50,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:38:50,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:38:50,462 INFO L87 Difference]: Start difference. First operand 5438 states and 14314 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:07,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:07,946 INFO L93 Difference]: Finished difference Result 7400 states and 19373 transitions. [2022-03-01 15:39:07,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-01 15:39:07,947 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:39:07,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:07,955 INFO L225 Difference]: With dead ends: 7400 [2022-03-01 15:39:07,955 INFO L226 Difference]: Without dead ends: 6954 [2022-03-01 15:39:07,956 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1902 ImplicationChecksByTransitivity, 16.8s TimeCoverageRelationStatistics Valid=2191, Invalid=6551, Unknown=0, NotChecked=0, Total=8742 [2022-03-01 15:39:07,956 INFO L933 BasicCegarLoop]: 547 mSDtfsCounter, 1508 mSDsluCounter, 8629 mSDsCounter, 0 mSdLazyCounter, 1890 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1508 SdHoareTripleChecker+Valid, 8978 SdHoareTripleChecker+Invalid, 1893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1890 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:07,956 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1508 Valid, 8978 Invalid, 1893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1890 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:39:07,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6954 states. [2022-03-01 15:39:08,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6954 to 5442. [2022-03-01 15:39:08,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5442 states, 5441 states have (on average 2.632052931446425) internal successors, (14321), 5441 states have internal predecessors, (14321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:08,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5442 states to 5442 states and 14321 transitions. [2022-03-01 15:39:08,023 INFO L78 Accepts]: Start accepts. Automaton has 5442 states and 14321 transitions. Word has length 137 [2022-03-01 15:39:08,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:08,024 INFO L470 AbstractCegarLoop]: Abstraction has 5442 states and 14321 transitions. [2022-03-01 15:39:08,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:08,024 INFO L276 IsEmpty]: Start isEmpty. Operand 5442 states and 14321 transitions. [2022-03-01 15:39:08,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:39:08,029 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:08,029 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:08,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable235 [2022-03-01 15:39:08,030 INFO L402 AbstractCegarLoop]: === Iteration 237 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:08,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:08,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1909724419, now seen corresponding path program 79 times [2022-03-01 15:39:08,030 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:08,030 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612105040] [2022-03-01 15:39:08,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:08,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:08,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:08,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:08,503 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:08,503 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612105040] [2022-03-01 15:39:08,503 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612105040] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:08,503 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:08,504 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:39:08,504 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432535632] [2022-03-01 15:39:08,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:08,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:39:08,504 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:08,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:39:08,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:39:08,504 INFO L87 Difference]: Start difference. First operand 5442 states and 14321 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:14,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:14,717 INFO L93 Difference]: Finished difference Result 7186 states and 18884 transitions. [2022-03-01 15:39:14,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-03-01 15:39:14,717 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:39:14,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:14,726 INFO L225 Difference]: With dead ends: 7186 [2022-03-01 15:39:14,726 INFO L226 Difference]: Without dead ends: 6771 [2022-03-01 15:39:14,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 88 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1624 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=1926, Invalid=6084, Unknown=0, NotChecked=0, Total=8010 [2022-03-01 15:39:14,727 INFO L933 BasicCegarLoop]: 541 mSDtfsCounter, 1195 mSDsluCounter, 9650 mSDsCounter, 0 mSdLazyCounter, 2104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1195 SdHoareTripleChecker+Valid, 9969 SdHoareTripleChecker+Invalid, 2107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:14,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1195 Valid, 9969 Invalid, 2107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2104 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:39:14,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6771 states. [2022-03-01 15:39:14,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6771 to 5454. [2022-03-01 15:39:14,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5454 states, 5453 states have (on average 2.6301118650284248) internal successors, (14342), 5453 states have internal predecessors, (14342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:14,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5454 states to 5454 states and 14342 transitions. [2022-03-01 15:39:14,797 INFO L78 Accepts]: Start accepts. Automaton has 5454 states and 14342 transitions. Word has length 137 [2022-03-01 15:39:14,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:14,797 INFO L470 AbstractCegarLoop]: Abstraction has 5454 states and 14342 transitions. [2022-03-01 15:39:14,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:14,797 INFO L276 IsEmpty]: Start isEmpty. Operand 5454 states and 14342 transitions. [2022-03-01 15:39:14,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:39:14,803 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:14,803 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:14,803 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable236 [2022-03-01 15:39:14,803 INFO L402 AbstractCegarLoop]: === Iteration 238 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:14,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:14,803 INFO L85 PathProgramCache]: Analyzing trace with hash -553916983, now seen corresponding path program 80 times [2022-03-01 15:39:14,803 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:14,803 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1194447448] [2022-03-01 15:39:14,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:14,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:14,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:15,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:15,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:15,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1194447448] [2022-03-01 15:39:15,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1194447448] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:15,288 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:15,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:39:15,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113614416] [2022-03-01 15:39:15,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:15,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:39:15,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:15,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:39:15,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:39:15,289 INFO L87 Difference]: Start difference. First operand 5454 states and 14342 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:21,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:21,843 INFO L93 Difference]: Finished difference Result 7039 states and 18499 transitions. [2022-03-01 15:39:21,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-01 15:39:21,843 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:39:21,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:21,851 INFO L225 Difference]: With dead ends: 7039 [2022-03-01 15:39:21,851 INFO L226 Difference]: Without dead ends: 6717 [2022-03-01 15:39:21,852 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1293 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=1573, Invalid=5069, Unknown=0, NotChecked=0, Total=6642 [2022-03-01 15:39:21,852 INFO L933 BasicCegarLoop]: 531 mSDtfsCounter, 1089 mSDsluCounter, 9083 mSDsCounter, 0 mSdLazyCounter, 1986 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1089 SdHoareTripleChecker+Valid, 9421 SdHoareTripleChecker+Invalid, 1989 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1986 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:21,852 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1089 Valid, 9421 Invalid, 1989 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1986 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:39:21,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6717 states. [2022-03-01 15:39:21,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6717 to 5458. [2022-03-01 15:39:21,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 2.6294667399670146) internal successors, (14349), 5457 states have internal predecessors, (14349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:21,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 14349 transitions. [2022-03-01 15:39:21,918 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 14349 transitions. Word has length 137 [2022-03-01 15:39:21,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:21,918 INFO L470 AbstractCegarLoop]: Abstraction has 5458 states and 14349 transitions. [2022-03-01 15:39:21,918 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:21,919 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 14349 transitions. [2022-03-01 15:39:21,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:39:21,924 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:21,924 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:21,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable237 [2022-03-01 15:39:21,924 INFO L402 AbstractCegarLoop]: === Iteration 239 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:21,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:21,924 INFO L85 PathProgramCache]: Analyzing trace with hash -258314147, now seen corresponding path program 81 times [2022-03-01 15:39:21,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:21,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570244042] [2022-03-01 15:39:21,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:21,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:21,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:22,410 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:22,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:22,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570244042] [2022-03-01 15:39:22,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570244042] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:22,411 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:22,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:39:22,411 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336521007] [2022-03-01 15:39:22,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:22,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:39:22,411 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:22,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:39:22,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:39:22,412 INFO L87 Difference]: Start difference. First operand 5458 states and 14349 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:27,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:27,065 INFO L93 Difference]: Finished difference Result 6954 states and 18280 transitions. [2022-03-01 15:39:27,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 15:39:27,066 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:39:27,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:27,074 INFO L225 Difference]: With dead ends: 6954 [2022-03-01 15:39:27,074 INFO L226 Difference]: Without dead ends: 6663 [2022-03-01 15:39:27,075 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 889 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1264, Invalid=4138, Unknown=0, NotChecked=0, Total=5402 [2022-03-01 15:39:27,075 INFO L933 BasicCegarLoop]: 522 mSDtfsCounter, 1022 mSDsluCounter, 9415 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1022 SdHoareTripleChecker+Valid, 9745 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:27,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1022 Valid, 9745 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:39:27,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6663 states. [2022-03-01 15:39:27,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6663 to 5462. [2022-03-01 15:39:27,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5462 states, 5461 states have (on average 2.6288225599707014) internal successors, (14356), 5461 states have internal predecessors, (14356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:27,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5462 states to 5462 states and 14356 transitions. [2022-03-01 15:39:27,148 INFO L78 Accepts]: Start accepts. Automaton has 5462 states and 14356 transitions. Word has length 137 [2022-03-01 15:39:27,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:27,148 INFO L470 AbstractCegarLoop]: Abstraction has 5462 states and 14356 transitions. [2022-03-01 15:39:27,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:27,149 INFO L276 IsEmpty]: Start isEmpty. Operand 5462 states and 14356 transitions. [2022-03-01 15:39:27,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:39:27,154 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:27,154 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:27,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable238 [2022-03-01 15:39:27,155 INFO L402 AbstractCegarLoop]: === Iteration 240 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:27,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:27,155 INFO L85 PathProgramCache]: Analyzing trace with hash -676495801, now seen corresponding path program 82 times [2022-03-01 15:39:27,155 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:27,155 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722795930] [2022-03-01 15:39:27,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:27,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:27,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:27,642 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:27,642 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722795930] [2022-03-01 15:39:27,642 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722795930] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:27,642 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:27,642 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:39:27,642 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462308048] [2022-03-01 15:39:27,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:27,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:39:27,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:27,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:39:27,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:39:27,643 INFO L87 Difference]: Start difference. First operand 5462 states and 14356 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:30,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:30,995 INFO L93 Difference]: Finished difference Result 6823 states and 17947 transitions. [2022-03-01 15:39:30,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-01 15:39:30,995 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:39:30,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:31,003 INFO L225 Difference]: With dead ends: 6823 [2022-03-01 15:39:31,003 INFO L226 Difference]: Without dead ends: 6566 [2022-03-01 15:39:31,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 491 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=963, Invalid=2819, Unknown=0, NotChecked=0, Total=3782 [2022-03-01 15:39:31,004 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 951 mSDsluCounter, 8368 mSDsCounter, 0 mSdLazyCounter, 1815 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 951 SdHoareTripleChecker+Valid, 8728 SdHoareTripleChecker+Invalid, 1818 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1815 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:31,004 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [951 Valid, 8728 Invalid, 1818 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1815 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:39:31,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6566 states. [2022-03-01 15:39:31,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6566 to 5466. [2022-03-01 15:39:31,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5466 states, 5465 states have (on average 2.628179322964318) internal successors, (14363), 5465 states have internal predecessors, (14363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:31,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5466 states to 5466 states and 14363 transitions. [2022-03-01 15:39:31,075 INFO L78 Accepts]: Start accepts. Automaton has 5466 states and 14363 transitions. Word has length 137 [2022-03-01 15:39:31,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:31,075 INFO L470 AbstractCegarLoop]: Abstraction has 5466 states and 14363 transitions. [2022-03-01 15:39:31,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:31,075 INFO L276 IsEmpty]: Start isEmpty. Operand 5466 states and 14363 transitions. [2022-03-01 15:39:31,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:39:31,081 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:31,081 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:31,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable239 [2022-03-01 15:39:31,081 INFO L402 AbstractCegarLoop]: === Iteration 241 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:31,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:31,081 INFO L85 PathProgramCache]: Analyzing trace with hash 816325633, now seen corresponding path program 83 times [2022-03-01 15:39:31,081 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:31,081 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106477495] [2022-03-01 15:39:31,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:31,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:31,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:31,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:31,549 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:31,549 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106477495] [2022-03-01 15:39:31,549 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106477495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:31,549 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:31,549 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:39:31,549 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78472771] [2022-03-01 15:39:31,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:31,549 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:39:31,549 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:31,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:39:31,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:39:31,550 INFO L87 Difference]: Start difference. First operand 5466 states and 14363 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:35,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:35,474 INFO L93 Difference]: Finished difference Result 6762 states and 17781 transitions. [2022-03-01 15:39:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:39:35,475 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:39:35,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:35,484 INFO L225 Difference]: With dead ends: 6762 [2022-03-01 15:39:35,484 INFO L226 Difference]: Without dead ends: 6418 [2022-03-01 15:39:35,485 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 593 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1008, Invalid=3282, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:39:35,485 INFO L933 BasicCegarLoop]: 507 mSDtfsCounter, 1124 mSDsluCounter, 8486 mSDsCounter, 0 mSdLazyCounter, 1851 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1124 SdHoareTripleChecker+Valid, 8841 SdHoareTripleChecker+Invalid, 1854 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1851 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:35,485 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1124 Valid, 8841 Invalid, 1854 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1851 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:39:35,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6418 states. [2022-03-01 15:39:35,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6418 to 5382. [2022-03-01 15:39:35,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5382 states, 5381 states have (on average 2.632224493588552) internal successors, (14164), 5381 states have internal predecessors, (14164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:35,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5382 states to 5382 states and 14164 transitions. [2022-03-01 15:39:35,576 INFO L78 Accepts]: Start accepts. Automaton has 5382 states and 14164 transitions. Word has length 137 [2022-03-01 15:39:35,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:35,576 INFO L470 AbstractCegarLoop]: Abstraction has 5382 states and 14164 transitions. [2022-03-01 15:39:35,576 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:35,576 INFO L276 IsEmpty]: Start isEmpty. Operand 5382 states and 14164 transitions. [2022-03-01 15:39:35,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:39:35,581 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:35,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:35,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable240 [2022-03-01 15:39:35,582 INFO L402 AbstractCegarLoop]: === Iteration 242 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:35,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:35,582 INFO L85 PathProgramCache]: Analyzing trace with hash 1678521553, now seen corresponding path program 84 times [2022-03-01 15:39:35,582 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:35,582 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011393184] [2022-03-01 15:39:35,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:35,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:36,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:36,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:36,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011393184] [2022-03-01 15:39:36,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011393184] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:36,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:36,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:39:36,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679572060] [2022-03-01 15:39:36,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:36,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:39:36,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:36,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:39:36,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:39:36,076 INFO L87 Difference]: Start difference. First operand 5382 states and 14164 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:40,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:40,863 INFO L93 Difference]: Finished difference Result 6479 states and 17049 transitions. [2022-03-01 15:39:40,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-03-01 15:39:40,863 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:39:40,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:40,871 INFO L225 Difference]: With dead ends: 6479 [2022-03-01 15:39:40,871 INFO L226 Difference]: Without dead ends: 6166 [2022-03-01 15:39:40,871 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1005 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=1635, Invalid=4371, Unknown=0, NotChecked=0, Total=6006 [2022-03-01 15:39:40,871 INFO L933 BasicCegarLoop]: 503 mSDtfsCounter, 1015 mSDsluCounter, 7803 mSDsCounter, 0 mSdLazyCounter, 1692 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1015 SdHoareTripleChecker+Valid, 8155 SdHoareTripleChecker+Invalid, 1695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1692 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:40,871 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1015 Valid, 8155 Invalid, 1695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1692 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-03-01 15:39:40,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6166 states. [2022-03-01 15:39:40,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6166 to 5410. [2022-03-01 15:39:40,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.63209465705306) internal successors, (14237), 5409 states have internal predecessors, (14237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:40,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14237 transitions. [2022-03-01 15:39:40,935 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14237 transitions. Word has length 137 [2022-03-01 15:39:40,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:40,935 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14237 transitions. [2022-03-01 15:39:40,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:40,935 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14237 transitions. [2022-03-01 15:39:40,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:39:40,941 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:40,941 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:40,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable241 [2022-03-01 15:39:40,941 INFO L402 AbstractCegarLoop]: === Iteration 243 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:40,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:40,941 INFO L85 PathProgramCache]: Analyzing trace with hash -257348639, now seen corresponding path program 85 times [2022-03-01 15:39:40,941 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:40,941 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900568750] [2022-03-01 15:39:40,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:40,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:40,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:41,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:41,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:41,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900568750] [2022-03-01 15:39:41,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900568750] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:41,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:41,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:39:41,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108172622] [2022-03-01 15:39:41,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:41,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:39:41,408 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:41,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:39:41,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:39:41,409 INFO L87 Difference]: Start difference. First operand 5410 states and 14237 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:46,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:46,846 INFO L93 Difference]: Finished difference Result 6551 states and 17235 transitions. [2022-03-01 15:39:46,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-03-01 15:39:46,846 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:39:46,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:46,854 INFO L225 Difference]: With dead ends: 6551 [2022-03-01 15:39:46,854 INFO L226 Difference]: Without dead ends: 6266 [2022-03-01 15:39:46,854 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 806 ImplicationChecksByTransitivity, 4.8s TimeCoverageRelationStatistics Valid=1418, Invalid=3984, Unknown=0, NotChecked=0, Total=5402 [2022-03-01 15:39:46,855 INFO L933 BasicCegarLoop]: 503 mSDtfsCounter, 1037 mSDsluCounter, 9236 mSDsCounter, 0 mSdLazyCounter, 2000 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 9560 SdHoareTripleChecker+Invalid, 2003 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2000 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:46,855 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1037 Valid, 9560 Invalid, 2003 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2000 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:39:46,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6266 states. [2022-03-01 15:39:46,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6266 to 5414. [2022-03-01 15:39:46,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.631442822833918) internal successors, (14244), 5413 states have internal predecessors, (14244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:46,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14244 transitions. [2022-03-01 15:39:46,921 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14244 transitions. Word has length 137 [2022-03-01 15:39:46,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:46,921 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14244 transitions. [2022-03-01 15:39:46,921 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:46,921 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14244 transitions. [2022-03-01 15:39:46,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:39:46,927 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:46,927 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:46,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable242 [2022-03-01 15:39:46,927 INFO L402 AbstractCegarLoop]: === Iteration 244 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:46,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:46,927 INFO L85 PathProgramCache]: Analyzing trace with hash 986613455, now seen corresponding path program 86 times [2022-03-01 15:39:46,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:46,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185738385] [2022-03-01 15:39:46,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:46,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:46,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:47,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:47,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:47,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185738385] [2022-03-01 15:39:47,401 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185738385] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:47,401 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:47,401 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:39:47,401 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084598692] [2022-03-01 15:39:47,401 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:47,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:39:47,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:47,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:39:47,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:39:47,402 INFO L87 Difference]: Start difference. First operand 5414 states and 14244 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:51,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:51,739 INFO L93 Difference]: Finished difference Result 6471 states and 17023 transitions. [2022-03-01 15:39:51,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:39:51,739 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:39:51,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:51,746 INFO L225 Difference]: With dead ends: 6471 [2022-03-01 15:39:51,747 INFO L226 Difference]: Without dead ends: 6214 [2022-03-01 15:39:51,747 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 558 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1086, Invalid=3204, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:39:51,747 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1029 mSDsluCounter, 8454 mSDsCounter, 0 mSdLazyCounter, 1885 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 8808 SdHoareTripleChecker+Invalid, 1888 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1885 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:51,747 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1029 Valid, 8808 Invalid, 1888 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1885 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:39:51,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6214 states. [2022-03-01 15:39:51,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6214 to 5418. [2022-03-01 15:39:51,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6307919512645377) internal successors, (14251), 5417 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:51,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14251 transitions. [2022-03-01 15:39:51,816 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14251 transitions. Word has length 137 [2022-03-01 15:39:51,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:51,817 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14251 transitions. [2022-03-01 15:39:51,817 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:51,817 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14251 transitions. [2022-03-01 15:39:51,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:39:51,822 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:51,822 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:51,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable243 [2022-03-01 15:39:51,823 INFO L402 AbstractCegarLoop]: === Iteration 245 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:51,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:51,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1815532407, now seen corresponding path program 87 times [2022-03-01 15:39:51,823 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:51,823 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914248845] [2022-03-01 15:39:51,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:51,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:51,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:52,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:52,301 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:52,301 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914248845] [2022-03-01 15:39:52,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914248845] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:52,301 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:52,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:39:52,302 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215329207] [2022-03-01 15:39:52,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:52,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:39:52,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:52,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:39:52,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:39:52,302 INFO L87 Difference]: Start difference. First operand 5418 states and 14251 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:56,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:39:56,427 INFO L93 Difference]: Finished difference Result 6434 states and 16919 transitions. [2022-03-01 15:39:56,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-01 15:39:56,428 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:39:56,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:39:56,436 INFO L225 Difference]: With dead ends: 6434 [2022-03-01 15:39:56,436 INFO L226 Difference]: Without dead ends: 6162 [2022-03-01 15:39:56,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=968, Invalid=3064, Unknown=0, NotChecked=0, Total=4032 [2022-03-01 15:39:56,436 INFO L933 BasicCegarLoop]: 501 mSDtfsCounter, 978 mSDsluCounter, 8646 mSDsCounter, 0 mSdLazyCounter, 1911 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 978 SdHoareTripleChecker+Valid, 8989 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1911 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:39:56,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [978 Valid, 8989 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1911 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:39:56,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6162 states. [2022-03-01 15:39:56,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6162 to 5406. [2022-03-01 15:39:56,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5406 states, 5405 states have (on average 2.632007400555042) internal successors, (14226), 5405 states have internal predecessors, (14226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:56,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5406 states to 5406 states and 14226 transitions. [2022-03-01 15:39:56,505 INFO L78 Accepts]: Start accepts. Automaton has 5406 states and 14226 transitions. Word has length 137 [2022-03-01 15:39:56,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:39:56,506 INFO L470 AbstractCegarLoop]: Abstraction has 5406 states and 14226 transitions. [2022-03-01 15:39:56,506 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:39:56,506 INFO L276 IsEmpty]: Start isEmpty. Operand 5406 states and 14226 transitions. [2022-03-01 15:39:56,511 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:39:56,512 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:39:56,512 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:39:56,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable244 [2022-03-01 15:39:56,512 INFO L402 AbstractCegarLoop]: === Iteration 246 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:39:56,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:39:56,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1590549615, now seen corresponding path program 88 times [2022-03-01 15:39:56,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:39:56,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538314553] [2022-03-01 15:39:56,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:39:56,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:39:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:39:56,982 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:39:56,982 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:39:56,982 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538314553] [2022-03-01 15:39:56,983 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538314553] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:39:56,983 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:39:56,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:39:56,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753315061] [2022-03-01 15:39:56,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:39:56,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:39:56,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:39:56,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:39:56,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:39:56,984 INFO L87 Difference]: Start difference. First operand 5406 states and 14226 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:02,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:02,286 INFO L93 Difference]: Finished difference Result 6563 states and 17268 transitions. [2022-03-01 15:40:02,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-01 15:40:02,287 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:40:02,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:02,294 INFO L225 Difference]: With dead ends: 6563 [2022-03-01 15:40:02,295 INFO L226 Difference]: Without dead ends: 6278 [2022-03-01 15:40:02,295 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 769 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=1385, Invalid=3871, Unknown=0, NotChecked=0, Total=5256 [2022-03-01 15:40:02,295 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1103 mSDsluCounter, 8418 mSDsCounter, 0 mSdLazyCounter, 1840 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1103 SdHoareTripleChecker+Valid, 8764 SdHoareTripleChecker+Invalid, 1843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1840 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:02,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1103 Valid, 8764 Invalid, 1843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1840 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:40:02,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6278 states. [2022-03-01 15:40:02,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6278 to 5414. [2022-03-01 15:40:02,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.631442822833918) internal successors, (14244), 5413 states have internal predecessors, (14244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:02,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14244 transitions. [2022-03-01 15:40:02,358 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14244 transitions. Word has length 137 [2022-03-01 15:40:02,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:02,358 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14244 transitions. [2022-03-01 15:40:02,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:02,358 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14244 transitions. [2022-03-01 15:40:02,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:40:02,364 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:02,364 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:02,364 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable245 [2022-03-01 15:40:02,364 INFO L402 AbstractCegarLoop]: === Iteration 247 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:02,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:02,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1460455587, now seen corresponding path program 89 times [2022-03-01 15:40:02,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:02,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123600217] [2022-03-01 15:40:02,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:02,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:02,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:02,833 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:02,833 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123600217] [2022-03-01 15:40:02,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123600217] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:02,833 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:02,833 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:40:02,833 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624007163] [2022-03-01 15:40:02,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:02,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:40:02,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:02,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:40:02,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:40:02,834 INFO L87 Difference]: Start difference. First operand 5414 states and 14244 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:07,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:07,215 INFO L93 Difference]: Finished difference Result 6511 states and 17133 transitions. [2022-03-01 15:40:07,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:40:07,215 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:40:07,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:07,223 INFO L225 Difference]: With dead ends: 6511 [2022-03-01 15:40:07,223 INFO L226 Difference]: Without dead ends: 6254 [2022-03-01 15:40:07,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 552 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1091, Invalid=3199, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:40:07,224 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 926 mSDsluCounter, 8536 mSDsCounter, 0 mSdLazyCounter, 1891 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 926 SdHoareTripleChecker+Valid, 8888 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:07,224 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [926 Valid, 8888 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1891 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:40:07,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6254 states. [2022-03-01 15:40:07,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6254 to 5418. [2022-03-01 15:40:07,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.6307919512645377) internal successors, (14251), 5417 states have internal predecessors, (14251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:07,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14251 transitions. [2022-03-01 15:40:07,288 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14251 transitions. Word has length 137 [2022-03-01 15:40:07,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:07,288 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14251 transitions. [2022-03-01 15:40:07,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:07,289 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14251 transitions. [2022-03-01 15:40:07,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:40:07,294 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:07,294 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:07,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable246 [2022-03-01 15:40:07,294 INFO L402 AbstractCegarLoop]: === Iteration 248 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:07,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:07,294 INFO L85 PathProgramCache]: Analyzing trace with hash 32365847, now seen corresponding path program 90 times [2022-03-01 15:40:07,295 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:07,295 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134394937] [2022-03-01 15:40:07,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:07,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:07,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:07,762 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:07,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134394937] [2022-03-01 15:40:07,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134394937] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:07,762 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:07,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:40:07,762 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393225691] [2022-03-01 15:40:07,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:07,763 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:40:07,763 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:07,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:40:07,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:40:07,763 INFO L87 Difference]: Start difference. First operand 5418 states and 14251 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:11,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:11,697 INFO L93 Difference]: Finished difference Result 6482 states and 17051 transitions. [2022-03-01 15:40:11,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:40:11,698 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:40:11,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:11,705 INFO L225 Difference]: With dead ends: 6482 [2022-03-01 15:40:11,705 INFO L226 Difference]: Without dead ends: 6214 [2022-03-01 15:40:11,705 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 560 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1005, Invalid=3155, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:40:11,705 INFO L933 BasicCegarLoop]: 504 mSDtfsCounter, 949 mSDsluCounter, 8724 mSDsCounter, 0 mSdLazyCounter, 1952 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 949 SdHoareTripleChecker+Valid, 9065 SdHoareTripleChecker+Invalid, 1955 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:11,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [949 Valid, 9065 Invalid, 1955 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1952 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:40:11,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6214 states. [2022-03-01 15:40:11,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6214 to 5410. [2022-03-01 15:40:11,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6313551488260307) internal successors, (14233), 5409 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:11,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14233 transitions. [2022-03-01 15:40:11,768 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14233 transitions. Word has length 137 [2022-03-01 15:40:11,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:11,768 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14233 transitions. [2022-03-01 15:40:11,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:11,768 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14233 transitions. [2022-03-01 15:40:11,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:40:11,773 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:11,773 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:11,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable247 [2022-03-01 15:40:11,774 INFO L402 AbstractCegarLoop]: === Iteration 249 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:11,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:11,774 INFO L85 PathProgramCache]: Analyzing trace with hash -959952723, now seen corresponding path program 91 times [2022-03-01 15:40:11,774 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:11,774 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258201495] [2022-03-01 15:40:11,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:11,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:12,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:12,243 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:12,244 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258201495] [2022-03-01 15:40:12,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258201495] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:12,244 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:12,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:40:12,244 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463647257] [2022-03-01 15:40:12,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:12,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:40:12,244 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:12,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:40:12,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:40:12,245 INFO L87 Difference]: Start difference. First operand 5410 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:16,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:16,890 INFO L93 Difference]: Finished difference Result 6566 states and 17261 transitions. [2022-03-01 15:40:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-03-01 15:40:16,890 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:40:16,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:16,898 INFO L225 Difference]: With dead ends: 6566 [2022-03-01 15:40:16,898 INFO L226 Difference]: Without dead ends: 6275 [2022-03-01 15:40:16,899 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 797 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1249, Invalid=3863, Unknown=0, NotChecked=0, Total=5112 [2022-03-01 15:40:16,899 INFO L933 BasicCegarLoop]: 509 mSDtfsCounter, 1037 mSDsluCounter, 9285 mSDsCounter, 0 mSdLazyCounter, 2038 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1037 SdHoareTripleChecker+Valid, 9603 SdHoareTripleChecker+Invalid, 2041 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:16,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1037 Valid, 9603 Invalid, 2041 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2038 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-03-01 15:40:16,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6275 states. [2022-03-01 15:40:16,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6275 to 5414. [2022-03-01 15:40:16,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5414 states, 5413 states have (on average 2.6307038610751894) internal successors, (14240), 5413 states have internal predecessors, (14240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:16,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5414 states to 5414 states and 14240 transitions. [2022-03-01 15:40:16,964 INFO L78 Accepts]: Start accepts. Automaton has 5414 states and 14240 transitions. Word has length 137 [2022-03-01 15:40:16,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:16,964 INFO L470 AbstractCegarLoop]: Abstraction has 5414 states and 14240 transitions. [2022-03-01 15:40:16,964 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:16,964 INFO L276 IsEmpty]: Start isEmpty. Operand 5414 states and 14240 transitions. [2022-03-01 15:40:16,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:40:16,969 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:16,970 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:16,970 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable248 [2022-03-01 15:40:16,970 INFO L402 AbstractCegarLoop]: === Iteration 250 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:16,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:16,970 INFO L85 PathProgramCache]: Analyzing trace with hash -1378134377, now seen corresponding path program 92 times [2022-03-01 15:40:16,970 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:16,970 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571589016] [2022-03-01 15:40:16,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:16,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:16,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:17,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:17,443 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:17,443 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571589016] [2022-03-01 15:40:17,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571589016] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:17,443 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:17,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:40:17,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287185130] [2022-03-01 15:40:17,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:17,444 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:40:17,444 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:17,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:40:17,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:40:17,444 INFO L87 Difference]: Start difference. First operand 5414 states and 14240 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:21,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:21,660 INFO L93 Difference]: Finished difference Result 6475 states and 17030 transitions. [2022-03-01 15:40:21,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-01 15:40:21,660 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:40:21,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:21,667 INFO L225 Difference]: With dead ends: 6475 [2022-03-01 15:40:21,667 INFO L226 Difference]: Without dead ends: 6218 [2022-03-01 15:40:21,667 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 526 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1052, Invalid=3108, Unknown=0, NotChecked=0, Total=4160 [2022-03-01 15:40:21,668 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 967 mSDsluCounter, 8600 mSDsCounter, 0 mSdLazyCounter, 1916 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 967 SdHoareTripleChecker+Valid, 8949 SdHoareTripleChecker+Invalid, 1919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1916 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:21,668 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [967 Valid, 8949 Invalid, 1919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1916 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:40:21,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6218 states. [2022-03-01 15:40:21,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6218 to 5418. [2022-03-01 15:40:21,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5418 states, 5417 states have (on average 2.630053535167067) internal successors, (14247), 5417 states have internal predecessors, (14247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:21,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5418 states to 5418 states and 14247 transitions. [2022-03-01 15:40:21,727 INFO L78 Accepts]: Start accepts. Automaton has 5418 states and 14247 transitions. Word has length 137 [2022-03-01 15:40:21,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:21,728 INFO L470 AbstractCegarLoop]: Abstraction has 5418 states and 14247 transitions. [2022-03-01 15:40:21,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:21,728 INFO L276 IsEmpty]: Start isEmpty. Operand 5418 states and 14247 transitions. [2022-03-01 15:40:21,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:40:21,733 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:21,733 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:21,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable249 [2022-03-01 15:40:21,733 INFO L402 AbstractCegarLoop]: === Iteration 251 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:21,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:21,733 INFO L85 PathProgramCache]: Analyzing trace with hash 114687057, now seen corresponding path program 93 times [2022-03-01 15:40:21,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:21,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942309403] [2022-03-01 15:40:21,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:21,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:21,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:22,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:22,203 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:22,203 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942309403] [2022-03-01 15:40:22,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1942309403] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:22,203 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:22,203 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:40:22,203 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578464090] [2022-03-01 15:40:22,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:22,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:40:22,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:22,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:40:22,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:40:22,204 INFO L87 Difference]: Start difference. First operand 5418 states and 14247 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:26,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:26,622 INFO L93 Difference]: Finished difference Result 6434 states and 16915 transitions. [2022-03-01 15:40:26,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-03-01 15:40:26,622 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:40:26,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:26,629 INFO L225 Difference]: With dead ends: 6434 [2022-03-01 15:40:26,629 INFO L226 Difference]: Without dead ends: 6158 [2022-03-01 15:40:26,630 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 581 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1044, Invalid=3246, Unknown=0, NotChecked=0, Total=4290 [2022-03-01 15:40:26,630 INFO L933 BasicCegarLoop]: 502 mSDtfsCounter, 1029 mSDsluCounter, 9015 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1029 SdHoareTripleChecker+Valid, 9346 SdHoareTripleChecker+Invalid, 1995 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:26,630 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1029 Valid, 9346 Invalid, 1995 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:40:26,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6158 states. [2022-03-01 15:40:26,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6158 to 5402. [2022-03-01 15:40:26,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5402 states, 5401 states have (on average 2.631920014812072) internal successors, (14215), 5401 states have internal predecessors, (14215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:26,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5402 states to 5402 states and 14215 transitions. [2022-03-01 15:40:26,693 INFO L78 Accepts]: Start accepts. Automaton has 5402 states and 14215 transitions. Word has length 137 [2022-03-01 15:40:26,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:26,693 INFO L470 AbstractCegarLoop]: Abstraction has 5402 states and 14215 transitions. [2022-03-01 15:40:26,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:26,693 INFO L276 IsEmpty]: Start isEmpty. Operand 5402 states and 14215 transitions. [2022-03-01 15:40:26,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:40:26,698 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:26,699 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:26,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable250 [2022-03-01 15:40:26,699 INFO L402 AbstractCegarLoop]: === Iteration 252 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:26,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:26,699 INFO L85 PathProgramCache]: Analyzing trace with hash -493234607, now seen corresponding path program 94 times [2022-03-01 15:40:26,699 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:26,699 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977640355] [2022-03-01 15:40:26,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:26,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:26,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:27,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:27,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:27,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977640355] [2022-03-01 15:40:27,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977640355] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:27,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:27,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:40:27,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784694675] [2022-03-01 15:40:27,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:27,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:40:27,171 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:27,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:40:27,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:40:27,171 INFO L87 Difference]: Start difference. First operand 5402 states and 14215 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:31,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-01 15:40:31,751 INFO L93 Difference]: Finished difference Result 6683 states and 17568 transitions. [2022-03-01 15:40:31,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-01 15:40:31,752 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 137 [2022-03-01 15:40:31,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-01 15:40:31,760 INFO L225 Difference]: With dead ends: 6683 [2022-03-01 15:40:31,760 INFO L226 Difference]: Without dead ends: 6361 [2022-03-01 15:40:31,761 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1178 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=1563, Invalid=4757, Unknown=0, NotChecked=0, Total=6320 [2022-03-01 15:40:31,761 INFO L933 BasicCegarLoop]: 516 mSDtfsCounter, 1060 mSDsluCounter, 9525 mSDsCounter, 0 mSdLazyCounter, 2077 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1060 SdHoareTripleChecker+Valid, 9828 SdHoareTripleChecker+Invalid, 2080 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2077 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:31,761 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1060 Valid, 9828 Invalid, 2080 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2077 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2022-03-01 15:40:31,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6361 states. [2022-03-01 15:40:31,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6361 to 5410. [2022-03-01 15:40:31,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5410 states, 5409 states have (on average 2.6313551488260307) internal successors, (14233), 5409 states have internal predecessors, (14233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:31,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5410 states to 5410 states and 14233 transitions. [2022-03-01 15:40:31,826 INFO L78 Accepts]: Start accepts. Automaton has 5410 states and 14233 transitions. Word has length 137 [2022-03-01 15:40:31,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-01 15:40:31,826 INFO L470 AbstractCegarLoop]: Abstraction has 5410 states and 14233 transitions. [2022-03-01 15:40:31,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 15:40:31,826 INFO L276 IsEmpty]: Start isEmpty. Operand 5410 states and 14233 transitions. [2022-03-01 15:40:31,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2022-03-01 15:40:31,831 INFO L506 BasicCegarLoop]: Found error trace [2022-03-01 15:40:31,831 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-01 15:40:31,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable251 [2022-03-01 15:40:31,832 INFO L402 AbstractCegarLoop]: === Iteration 253 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 15:40:31,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 15:40:31,832 INFO L85 PathProgramCache]: Analyzing trace with hash -197631771, now seen corresponding path program 95 times [2022-03-01 15:40:31,832 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 15:40:31,832 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285801977] [2022-03-01 15:40:31,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 15:40:31,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 15:40:31,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 15:40:32,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 15:40:32,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 15:40:32,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285801977] [2022-03-01 15:40:32,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285801977] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 15:40:32,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 15:40:32,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-03-01 15:40:32,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486040075] [2022-03-01 15:40:32,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 15:40:32,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-03-01 15:40:32,316 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 15:40:32,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-03-01 15:40:32,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=677, Unknown=0, NotChecked=0, Total=756 [2022-03-01 15:40:32,317 INFO L87 Difference]: Start difference. First operand 5410 states and 14233 transitions. Second operand has 28 states, 28 states have (on average 4.892857142857143) internal successors, (137), 28 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Received shutdown request... [2022-03-01 15:40:32,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-03-01 15:40:32,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=95, Invalid=775, Unknown=0, NotChecked=0, Total=870 [2022-03-01 15:40:32,601 INFO L933 BasicCegarLoop]: 109 mSDtfsCounter, 98 mSDsluCounter, 2130 mSDsCounter, 0 mSdLazyCounter, 618 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 2170 SdHoareTripleChecker+Invalid, 621 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 618 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-01 15:40:32,601 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [98 Valid, 2170 Invalid, 621 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 618 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-01 15:40:32,602 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-03-01 15:40:32,602 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable252 [2022-03-01 15:40:32,602 WARN L594 AbstractCegarLoop]: Verification canceled: while BasicCegarLoop was constructing difference of abstraction (5410states) and FLOYD_HOARE automaton (currently 8 states, 28 states before enhancement),while ReachableStatesComputation was computing reachable states (302 states constructed, input type IntersectNwa). [2022-03-01 15:40:32,603 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-01 15:40:32,604 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-01 15:40:32,607 INFO L732 BasicCegarLoop]: Path program histogram: [95, 78, 35, 35, 3, 3, 2, 1, 1] [2022-03-01 15:40:32,613 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 15:40:32,613 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 15:40:32,614 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 03:40:32 BasicIcfg [2022-03-01 15:40:32,614 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 15:40:32,614 INFO L158 Benchmark]: Toolchain (without parser) took 717093.49ms. Allocated memory was 207.6MB in the beginning and 1.2GB in the end (delta: 996.1MB). Free memory was 156.3MB in the beginning and 519.0MB in the end (delta: -362.7MB). Peak memory consumption was 634.1MB. Max. memory is 8.0GB. [2022-03-01 15:40:32,615 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 207.6MB. Free memory was 173.3MB in the beginning and 173.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 15:40:32,615 INFO L158 Benchmark]: CACSL2BoogieTranslator took 249.27ms. Allocated memory was 207.6MB in the beginning and 251.7MB in the end (delta: 44.0MB). Free memory was 156.1MB in the beginning and 226.5MB in the end (delta: -70.4MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. [2022-03-01 15:40:32,615 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.47ms. Allocated memory is still 251.7MB. Free memory was 226.5MB in the beginning and 224.8MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 15:40:32,615 INFO L158 Benchmark]: Boogie Preprocessor took 25.12ms. Allocated memory is still 251.7MB. Free memory was 224.4MB in the beginning and 223.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 15:40:32,615 INFO L158 Benchmark]: RCFGBuilder took 328.55ms. Allocated memory is still 251.7MB. Free memory was 223.4MB in the beginning and 208.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-03-01 15:40:32,615 INFO L158 Benchmark]: TraceAbstraction took 716444.88ms. Allocated memory was 251.7MB in the beginning and 1.2GB in the end (delta: 952.1MB). Free memory was 207.6MB in the beginning and 519.0MB in the end (delta: -311.4MB). Peak memory consumption was 641.6MB. Max. memory is 8.0GB. [2022-03-01 15:40:32,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 207.6MB. Free memory was 173.3MB in the beginning and 173.2MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 249.27ms. Allocated memory was 207.6MB in the beginning and 251.7MB in the end (delta: 44.0MB). Free memory was 156.1MB in the beginning and 226.5MB in the end (delta: -70.4MB). Peak memory consumption was 14.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 40.47ms. Allocated memory is still 251.7MB. Free memory was 226.5MB in the beginning and 224.8MB in the end (delta: 1.7MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 25.12ms. Allocated memory is still 251.7MB. Free memory was 224.4MB in the beginning and 223.4MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 328.55ms. Allocated memory is still 251.7MB. Free memory was 223.4MB in the beginning and 208.3MB in the end (delta: 15.0MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * TraceAbstraction took 716444.88ms. Allocated memory was 251.7MB in the beginning and 1.2GB in the end (delta: 952.1MB). Free memory was 207.6MB in the beginning and 519.0MB in the end (delta: -311.4MB). Peak memory consumption was 641.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (5410states) and FLOYD_HOARE automaton (currently 8 states, 28 states before enhancement),while ReachableStatesComputation was computing reachable states (302 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5410states) and FLOYD_HOARE automaton (currently 8 states, 28 states before enhancement),while ReachableStatesComputation was computing reachable states (302 states constructed, input type IntersectNwa). - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (5410states) and FLOYD_HOARE automaton (currently 8 states, 28 states before enhancement),while ReachableStatesComputation was computing reachable states (302 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 246 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 716.3s, OverallIterations: 253, TraceHistogramMax: 1, PathProgramHistogramMax: 95, EmptinessCheckTime: 1.8s, AutomataDifference: 624.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 184570 SdHoareTripleChecker+Valid, 105.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 184570 mSDsluCounter, 1363541 SdHoareTripleChecker+Invalid, 88.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1298187 mSDsCounter, 853 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 258389 IncrementalHoareTripleChecker+Invalid, 259242 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 853 mSolverCounterUnsat, 96930 mSDtfsCounter, 258389 mSolverCounterSat, 1.8s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 15070 GetRequests, 2768 SyntacticMatches, 0 SemanticMatches, 12302 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134503 ImplicationChecksByTransitivity, 540.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7151occurred in iteration=0, InterpolantAutomatonStates: 9284, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 21.6s AutomataMinimizationTime, 252 MinimizatonAttempts, 345811 StatesRemovedByMinimization, 251 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 64.9s InterpolantComputationTime, 29009 NumberOfCodeBlocks, 29009 NumberOfCodeBlocksAsserted, 253 NumberOfCheckSat, 28756 ConstructedInterpolants, 0 QuantifiedInterpolants, 271308 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 253 InterpolantComputations, 253 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown