/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/popl20-counter-determinism.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 14:08:03,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 14:08:03,782 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 14:08:03,830 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-15 14:08:03,851 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 14:08:03,851 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 14:08:03,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 14:08:03,852 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 [2022-03-15 14:08:03,865 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 14:08:03,865 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 14:08:03,866 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-15 14:08:03,866 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-15 14:08:03,866 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 14:08:03,866 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 14:08:03,867 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 14:08:03,867 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 14:08:03,867 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 14:08:03,867 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 14:08:03,867 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 14:08:03,868 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 14:08:03,868 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 14:08:03,868 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 14:08:03,868 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 14:08:03,868 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 14:08:03,868 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 14:08:03,868 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 14:08:03,869 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 14:08:03,869 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 14:08:03,869 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 14:08:03,869 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 14:08:03,869 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 14:08:03,869 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 14:08:03,869 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 14:08:03,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:08:03,870 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 14:08:03,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-15 14:08:03,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 14:08:03,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 14:08:03,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 14:08:03,870 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-15 14:08:03,870 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 14:08:03,870 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 14:08:04,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 14:08:04,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 14:08:04,080 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 14:08:04,081 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-15 14:08:04,083 INFO L275 PluginConnector]: CDTParser initialized [2022-03-15 14:08:04,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-counter-determinism.wvr.c [2022-03-15 14:08:04,133 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc3234934/2a50721c9cb24a63a99c78a9055910c1/FLAGdecbd2589 [2022-03-15 14:08:04,450 INFO L306 CDTParser]: Found 1 translation units. [2022-03-15 14:08:04,450 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-determinism.wvr.c [2022-03-15 14:08:04,454 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc3234934/2a50721c9cb24a63a99c78a9055910c1/FLAGdecbd2589 [2022-03-15 14:08:04,882 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc3234934/2a50721c9cb24a63a99c78a9055910c1 [2022-03-15 14:08:04,884 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 14:08:04,885 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-15 14:08:04,886 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-15 14:08:04,886 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-15 14:08:04,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-15 14:08:04,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:08:04" (1/1) ... [2022-03-15 14:08:04,891 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b9a5f03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:08:04, skipping insertion in model container [2022-03-15 14:08:04,891 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.03 02:08:04" (1/1) ... [2022-03-15 14:08:04,897 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-15 14:08:04,911 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-15 14:08:05,063 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/popl20-counter-determinism.wvr.c[2476,2489] [2022-03-15 14:08:05,069 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:08:05,076 INFO L203 MainTranslator]: Completed pre-run [2022-03-15 14:08:05,106 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/popl20-counter-determinism.wvr.c[2476,2489] [2022-03-15 14:08:05,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-15 14:08:05,117 INFO L208 MainTranslator]: Completed translation [2022-03-15 14:08:05,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:08:05 WrapperNode [2022-03-15 14:08:05,118 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-15 14:08:05,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 14:08:05,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 14:08:05,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 14:08:05,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:08:05" (1/1) ... [2022-03-15 14:08:05,135 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:08:05" (1/1) ... [2022-03-15 14:08:05,158 INFO L137 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 116 [2022-03-15 14:08:05,158 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 14:08:05,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 14:08:05,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 14:08:05,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 14:08:05,164 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:08:05" (1/1) ... [2022-03-15 14:08:05,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:08:05" (1/1) ... [2022-03-15 14:08:05,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:08:05" (1/1) ... [2022-03-15 14:08:05,173 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:08:05" (1/1) ... [2022-03-15 14:08:05,184 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:08:05" (1/1) ... [2022-03-15 14:08:05,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:08:05" (1/1) ... [2022-03-15 14:08:05,190 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:08:05" (1/1) ... [2022-03-15 14:08:05,191 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 14:08:05,191 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 14:08:05,192 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 14:08:05,192 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 14:08:05,193 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:08:05" (1/1) ... [2022-03-15 14:08:05,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 14:08:05,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:08:05,216 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) [2022-03-15 14:08:05,256 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 [2022-03-15 14:08:05,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-15 14:08:05,268 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 14:08:05,268 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 14:08:05,268 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 14:08:05,269 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 14:08:05,269 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 14:08:05,269 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 14:08:05,269 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-15 14:08:05,269 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-15 14:08:05,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-15 14:08:05,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-15 14:08:05,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-15 14:08:05,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-15 14:08:05,270 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-15 14:08:05,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 14:08:05,270 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 14:08:05,270 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-15 14:08:05,270 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-15 14:08:05,271 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 14:08:05,348 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 14:08:05,349 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 14:08:05,524 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 14:08:05,562 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 14:08:05,562 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-15 14:08:05,566 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:08:05 BoogieIcfgContainer [2022-03-15 14:08:05,566 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 14:08:05,567 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 14:08:05,567 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 14:08:05,569 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 14:08:05,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.03 02:08:04" (1/3) ... [2022-03-15 14:08:05,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ad0551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:08:05, skipping insertion in model container [2022-03-15 14:08:05,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.03 02:08:05" (2/3) ... [2022-03-15 14:08:05,570 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22ad0551 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 02:08:05, skipping insertion in model container [2022-03-15 14:08:05,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 02:08:05" (3/3) ... [2022-03-15 14:08:05,571 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-counter-determinism.wvr.c [2022-03-15 14:08:05,575 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 14:08:05,575 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-15 14:08:05,575 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 14:08:05,575 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 14:08:05,623 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,623 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,623 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,624 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,625 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,625 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,625 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,625 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,625 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,626 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,626 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,626 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,626 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,626 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,626 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,626 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,627 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,627 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,629 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,629 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,629 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,630 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,630 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,631 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,632 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,633 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,634 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,635 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,636 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,636 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,636 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,636 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,637 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,637 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,637 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,637 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,638 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,638 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,638 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,638 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,639 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,639 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,639 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,639 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,639 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,639 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,640 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,640 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,641 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,642 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,642 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,642 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,643 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,643 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,644 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,644 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,645 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,645 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,645 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,645 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,645 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,645 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,646 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,647 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,647 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,648 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,650 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,653 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,653 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,654 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,654 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,654 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,654 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,654 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,654 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,654 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,656 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,657 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,657 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,657 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,657 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,658 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,658 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,658 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,658 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,658 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,658 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,658 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,658 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,659 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,659 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,659 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,659 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,659 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,659 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,659 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,659 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,660 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,660 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,660 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-15 14:08:05,666 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-15 14:08:05,708 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 14:08:05,715 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 [2022-03-15 14:08:05,715 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-15 14:08:05,727 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 128 places, 124 transitions, 280 flow [2022-03-15 14:08:06,915 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 33651 states, 33650 states have (on average 4.972095096582467) internal successors, (167311), 33650 states have internal predecessors, (167311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:06,990 INFO L276 IsEmpty]: Start isEmpty. Operand has 33651 states, 33650 states have (on average 4.972095096582467) internal successors, (167311), 33650 states have internal predecessors, (167311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:07,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-15 14:08:07,304 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:07,305 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] [2022-03-15 14:08:07,305 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:08:07,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:07,411 INFO L85 PathProgramCache]: Analyzing trace with hash -1048587059, now seen corresponding path program 1 times [2022-03-15 14:08:07,420 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:07,420 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692303251] [2022-03-15 14:08:07,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:07,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:07,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:07,608 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:07,608 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:07,608 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692303251] [2022-03-15 14:08:07,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692303251] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:08:07,609 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:08:07,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-15 14:08:07,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861265868] [2022-03-15 14:08:07,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:08:07,613 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-15 14:08:07,613 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:07,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-15 14:08:07,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 14:08:07,692 INFO L87 Difference]: Start difference. First operand has 33651 states, 33650 states have (on average 4.972095096582467) internal successors, (167311), 33650 states have internal predecessors, (167311), 0 states have call successors, (0), 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 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:08,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:08,319 INFO L93 Difference]: Finished difference Result 33651 states and 153288 transitions. [2022-03-15 14:08:08,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-15 14:08:08,324 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-03-15 14:08:08,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:08,763 INFO L225 Difference]: With dead ends: 33651 [2022-03-15 14:08:08,764 INFO L226 Difference]: Without dead ends: 33650 [2022-03-15 14:08:08,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-15 14:08:08,767 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:08,768 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:08:08,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33650 states. [2022-03-15 14:08:10,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33650 to 33650. [2022-03-15 14:08:10,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33650 states, 33649 states have (on average 4.555469701922791) internal successors, (153287), 33649 states have internal predecessors, (153287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:10,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33650 states to 33650 states and 153287 transitions. [2022-03-15 14:08:10,688 INFO L78 Accepts]: Start accepts. Automaton has 33650 states and 153287 transitions. Word has length 81 [2022-03-15 14:08:10,689 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:10,689 INFO L470 AbstractCegarLoop]: Abstraction has 33650 states and 153287 transitions. [2022-03-15 14:08:10,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 40.5) internal successors, (81), 2 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:10,689 INFO L276 IsEmpty]: Start isEmpty. Operand 33650 states and 153287 transitions. [2022-03-15 14:08:10,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-03-15 14:08:10,988 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:10,988 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] [2022-03-15 14:08:10,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 14:08:10,989 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:08:10,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:10,990 INFO L85 PathProgramCache]: Analyzing trace with hash 618218383, now seen corresponding path program 1 times [2022-03-15 14:08:10,990 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:10,990 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314184832] [2022-03-15 14:08:10,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:10,990 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:11,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:11,166 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:11,166 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:11,166 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314184832] [2022-03-15 14:08:11,166 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314184832] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:08:11,166 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:08:11,166 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:08:11,167 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525025455] [2022-03-15 14:08:11,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:08:11,168 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:08:11,168 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:11,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:08:11,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:08:11,169 INFO L87 Difference]: Start difference. First operand 33650 states and 153287 transitions. Second operand has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:11,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:11,869 INFO L93 Difference]: Finished difference Result 51344 states and 228410 transitions. [2022-03-15 14:08:11,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:08:11,880 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2022-03-15 14:08:11,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:12,467 INFO L225 Difference]: With dead ends: 51344 [2022-03-15 14:08:12,468 INFO L226 Difference]: Without dead ends: 47756 [2022-03-15 14:08:12,468 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:08:12,469 INFO L933 BasicCegarLoop]: 90 mSDtfsCounter, 134 mSDsluCounter, 389 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 440 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:12,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 440 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:08:12,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47756 states. [2022-03-15 14:08:13,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47756 to 40946. [2022-03-15 14:08:14,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40946 states, 40945 states have (on average 4.5106850653315425) internal successors, (184690), 40945 states have internal predecessors, (184690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:14,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40946 states to 40946 states and 184690 transitions. [2022-03-15 14:08:14,543 INFO L78 Accepts]: Start accepts. Automaton has 40946 states and 184690 transitions. Word has length 81 [2022-03-15 14:08:14,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:14,544 INFO L470 AbstractCegarLoop]: Abstraction has 40946 states and 184690 transitions. [2022-03-15 14:08:14,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.5) internal successors, (81), 6 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:14,544 INFO L276 IsEmpty]: Start isEmpty. Operand 40946 states and 184690 transitions. [2022-03-15 14:08:14,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:08:14,678 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:14,678 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] [2022-03-15 14:08:14,678 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-15 14:08:14,678 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:08:14,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:14,679 INFO L85 PathProgramCache]: Analyzing trace with hash -33109153, now seen corresponding path program 1 times [2022-03-15 14:08:14,679 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:14,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836045755] [2022-03-15 14:08:14,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:14,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:14,743 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:14,743 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:14,743 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836045755] [2022-03-15 14:08:14,744 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836045755] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:08:14,744 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:08:14,744 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:08:14,744 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675959866] [2022-03-15 14:08:14,744 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:08:14,744 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:08:14,744 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:14,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:08:14,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:08:14,745 INFO L87 Difference]: Start difference. First operand 40946 states and 184690 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:15,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:15,499 INFO L93 Difference]: Finished difference Result 54404 states and 243172 transitions. [2022-03-15 14:08:15,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:08:15,499 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:08:15,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:15,770 INFO L225 Difference]: With dead ends: 54404 [2022-03-15 14:08:15,770 INFO L226 Difference]: Without dead ends: 53180 [2022-03-15 14:08:15,771 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:08:15,771 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 159 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:15,772 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 423 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:08:16,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53180 states. [2022-03-15 14:08:17,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53180 to 40280. [2022-03-15 14:08:17,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40280 states, 40279 states have (on average 4.5210655676655325) internal successors, (182104), 40279 states have internal predecessors, (182104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:17,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40280 states to 40280 states and 182104 transitions. [2022-03-15 14:08:17,587 INFO L78 Accepts]: Start accepts. Automaton has 40280 states and 182104 transitions. Word has length 86 [2022-03-15 14:08:17,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:17,590 INFO L470 AbstractCegarLoop]: Abstraction has 40280 states and 182104 transitions. [2022-03-15 14:08:17,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:17,594 INFO L276 IsEmpty]: Start isEmpty. Operand 40280 states and 182104 transitions. [2022-03-15 14:08:17,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:08:17,751 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:17,751 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] [2022-03-15 14:08:17,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-15 14:08:17,753 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:08:17,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:17,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1556135173, now seen corresponding path program 1 times [2022-03-15 14:08:17,754 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:17,755 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922282464] [2022-03-15 14:08:17,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:17,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:17,948 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:17,948 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:17,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922282464] [2022-03-15 14:08:17,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922282464] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:08:17,948 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1766392798] [2022-03-15 14:08:17,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:17,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:08:17,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:08:17,952 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:08:17,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-15 14:08:18,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:18,037 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-15 14:08:18,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:08:18,213 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:18,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:08:18,334 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:18,335 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1766392798] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:08:18,335 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:08:18,335 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-03-15 14:08:18,335 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102414093] [2022-03-15 14:08:18,335 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:08:18,336 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:08:18,336 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:18,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:08:18,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:08:18,337 INFO L87 Difference]: Start difference. First operand 40280 states and 182104 transitions. Second operand has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:19,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:19,570 INFO L93 Difference]: Finished difference Result 70244 states and 317212 transitions. [2022-03-15 14:08:19,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 14:08:19,570 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 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 86 [2022-03-15 14:08:19,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:20,197 INFO L225 Difference]: With dead ends: 70244 [2022-03-15 14:08:20,197 INFO L226 Difference]: Without dead ends: 70244 [2022-03-15 14:08:20,198 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 184 GetRequests, 168 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:08:20,198 INFO L933 BasicCegarLoop]: 217 mSDtfsCounter, 401 mSDsluCounter, 925 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 1021 SdHoareTripleChecker+Invalid, 345 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:20,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [401 Valid, 1021 Invalid, 345 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:08:20,344 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70244 states. [2022-03-15 14:08:21,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70244 to 43574. [2022-03-15 14:08:21,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43574 states, 43573 states have (on average 4.528148165148142) internal successors, (197305), 43573 states have internal predecessors, (197305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:22,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43574 states to 43574 states and 197305 transitions. [2022-03-15 14:08:22,390 INFO L78 Accepts]: Start accepts. Automaton has 43574 states and 197305 transitions. Word has length 86 [2022-03-15 14:08:22,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:22,392 INFO L470 AbstractCegarLoop]: Abstraction has 43574 states and 197305 transitions. [2022-03-15 14:08:22,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.666666666666666) internal successors, (96), 9 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:22,393 INFO L276 IsEmpty]: Start isEmpty. Operand 43574 states and 197305 transitions. [2022-03-15 14:08:22,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:08:22,586 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:22,586 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] [2022-03-15 14:08:22,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-03-15 14:08:22,799 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:08:22,799 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:08:22,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:22,800 INFO L85 PathProgramCache]: Analyzing trace with hash 818687697, now seen corresponding path program 2 times [2022-03-15 14:08:22,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:22,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950608709] [2022-03-15 14:08:22,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:22,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:22,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:22,857 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:22,857 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:22,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950608709] [2022-03-15 14:08:22,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950608709] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:08:22,857 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:08:22,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:08:22,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159409182] [2022-03-15 14:08:22,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:08:22,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:08:22,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:22,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:08:22,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:08:22,858 INFO L87 Difference]: Start difference. First operand 43574 states and 197305 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:23,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:23,833 INFO L93 Difference]: Finished difference Result 78128 states and 347527 transitions. [2022-03-15 14:08:23,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:08:23,834 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:08:23,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:24,491 INFO L225 Difference]: With dead ends: 78128 [2022-03-15 14:08:24,492 INFO L226 Difference]: Without dead ends: 77030 [2022-03-15 14:08:24,492 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:08:24,493 INFO L933 BasicCegarLoop]: 180 mSDtfsCounter, 215 mSDsluCounter, 348 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 481 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:24,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [215 Valid, 481 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:08:24,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77030 states. [2022-03-15 14:08:26,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77030 to 43754. [2022-03-15 14:08:26,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43754 states, 43753 states have (on average 4.527209562772838) internal successors, (198079), 43753 states have internal predecessors, (198079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:26,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43754 states to 43754 states and 198079 transitions. [2022-03-15 14:08:26,419 INFO L78 Accepts]: Start accepts. Automaton has 43754 states and 198079 transitions. Word has length 86 [2022-03-15 14:08:26,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:26,420 INFO L470 AbstractCegarLoop]: Abstraction has 43754 states and 198079 transitions. [2022-03-15 14:08:26,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:26,420 INFO L276 IsEmpty]: Start isEmpty. Operand 43754 states and 198079 transitions. [2022-03-15 14:08:26,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:08:26,534 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:26,535 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] [2022-03-15 14:08:26,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-15 14:08:26,535 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:08:26,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:26,535 INFO L85 PathProgramCache]: Analyzing trace with hash -691215523, now seen corresponding path program 2 times [2022-03-15 14:08:26,535 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:26,536 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549829820] [2022-03-15 14:08:26,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:26,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:26,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:26,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:26,584 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:26,585 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549829820] [2022-03-15 14:08:26,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549829820] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:08:26,585 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:08:26,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:08:26,585 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195740962] [2022-03-15 14:08:26,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:08:26,585 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:08:26,585 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:26,586 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:08:26,586 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:08:26,586 INFO L87 Difference]: Start difference. First operand 43754 states and 198079 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:27,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:27,349 INFO L93 Difference]: Finished difference Result 62162 states and 280021 transitions. [2022-03-15 14:08:27,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:08:27,350 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:08:27,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:27,969 INFO L225 Difference]: With dead ends: 62162 [2022-03-15 14:08:27,969 INFO L226 Difference]: Without dead ends: 62162 [2022-03-15 14:08:27,970 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:08:27,976 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 125 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:27,977 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 405 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:08:28,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62162 states. [2022-03-15 14:08:29,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62162 to 45260. [2022-03-15 14:08:29,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45260 states, 45259 states have (on average 4.529110232219006) internal successors, (204983), 45259 states have internal predecessors, (204983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:29,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45260 states to 45260 states and 204983 transitions. [2022-03-15 14:08:29,806 INFO L78 Accepts]: Start accepts. Automaton has 45260 states and 204983 transitions. Word has length 86 [2022-03-15 14:08:29,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:29,806 INFO L470 AbstractCegarLoop]: Abstraction has 45260 states and 204983 transitions. [2022-03-15 14:08:29,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:29,807 INFO L276 IsEmpty]: Start isEmpty. Operand 45260 states and 204983 transitions. [2022-03-15 14:08:29,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:08:29,928 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:29,951 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] [2022-03-15 14:08:29,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-15 14:08:29,951 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:08:29,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:29,952 INFO L85 PathProgramCache]: Analyzing trace with hash 538899771, now seen corresponding path program 3 times [2022-03-15 14:08:29,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:29,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339797234] [2022-03-15 14:08:29,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:29,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:30,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:30,034 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:30,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339797234] [2022-03-15 14:08:30,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339797234] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:08:30,034 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:08:30,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:08:30,034 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330086320] [2022-03-15 14:08:30,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:08:30,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:08:30,035 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:30,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:08:30,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:08:30,035 INFO L87 Difference]: Start difference. First operand 45260 states and 204983 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:30,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:30,934 INFO L93 Difference]: Finished difference Result 75338 states and 340393 transitions. [2022-03-15 14:08:30,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:08:30,934 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:08:30,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:31,601 INFO L225 Difference]: With dead ends: 75338 [2022-03-15 14:08:31,601 INFO L226 Difference]: Without dead ends: 75338 [2022-03-15 14:08:31,601 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:08:31,602 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 201 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:31,603 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 466 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:08:31,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75338 states. [2022-03-15 14:08:33,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75338 to 44324. [2022-03-15 14:08:33,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44324 states, 44323 states have (on average 4.528100534711098) internal successors, (200699), 44323 states have internal predecessors, (200699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:33,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44324 states to 44324 states and 200699 transitions. [2022-03-15 14:08:33,598 INFO L78 Accepts]: Start accepts. Automaton has 44324 states and 200699 transitions. Word has length 86 [2022-03-15 14:08:33,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:33,598 INFO L470 AbstractCegarLoop]: Abstraction has 44324 states and 200699 transitions. [2022-03-15 14:08:33,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:33,598 INFO L276 IsEmpty]: Start isEmpty. Operand 44324 states and 200699 transitions. [2022-03-15 14:08:33,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:08:33,735 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:33,735 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] [2022-03-15 14:08:33,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-15 14:08:33,736 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:08:33,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:33,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1869302141, now seen corresponding path program 3 times [2022-03-15 14:08:33,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:33,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806687522] [2022-03-15 14:08:33,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:33,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:33,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:34,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:34,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:34,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806687522] [2022-03-15 14:08:34,146 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [806687522] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:08:34,146 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:08:34,146 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:08:34,146 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353908596] [2022-03-15 14:08:34,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:08:34,146 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:08:34,146 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:34,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:08:34,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:08:34,147 INFO L87 Difference]: Start difference. First operand 44324 states and 200699 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:35,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:35,372 INFO L93 Difference]: Finished difference Result 110492 states and 494187 transitions. [2022-03-15 14:08:35,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:08:35,373 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:08:35,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:36,319 INFO L225 Difference]: With dead ends: 110492 [2022-03-15 14:08:36,319 INFO L226 Difference]: Without dead ends: 108854 [2022-03-15 14:08:36,319 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:08:36,320 INFO L933 BasicCegarLoop]: 207 mSDtfsCounter, 221 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 616 SdHoareTripleChecker+Invalid, 183 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:36,320 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [221 Valid, 616 Invalid, 183 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:08:36,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108854 states. [2022-03-15 14:08:38,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108854 to 50864. [2022-03-15 14:08:38,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50864 states, 50863 states have (on average 4.565263551107878) internal successors, (232203), 50863 states have internal predecessors, (232203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:39,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50864 states to 50864 states and 232203 transitions. [2022-03-15 14:08:39,090 INFO L78 Accepts]: Start accepts. Automaton has 50864 states and 232203 transitions. Word has length 86 [2022-03-15 14:08:39,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:39,090 INFO L470 AbstractCegarLoop]: Abstraction has 50864 states and 232203 transitions. [2022-03-15 14:08:39,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:39,090 INFO L276 IsEmpty]: Start isEmpty. Operand 50864 states and 232203 transitions. [2022-03-15 14:08:39,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:08:39,247 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:39,247 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] [2022-03-15 14:08:39,248 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-15 14:08:39,248 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:08:39,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:39,248 INFO L85 PathProgramCache]: Analyzing trace with hash 926791667, now seen corresponding path program 4 times [2022-03-15 14:08:39,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:39,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643112216] [2022-03-15 14:08:39,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:39,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:39,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:39,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:39,284 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:39,285 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643112216] [2022-03-15 14:08:39,285 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643112216] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:08:39,285 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:08:39,285 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:08:39,285 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138923042] [2022-03-15 14:08:39,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:08:39,285 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:08:39,285 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:39,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:08:39,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:08:39,286 INFO L87 Difference]: Start difference. First operand 50864 states and 232203 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:40,449 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:40,449 INFO L93 Difference]: Finished difference Result 98039 states and 439870 transitions. [2022-03-15 14:08:40,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:08:40,449 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:08:40,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:41,402 INFO L225 Difference]: With dead ends: 98039 [2022-03-15 14:08:41,403 INFO L226 Difference]: Without dead ends: 96473 [2022-03-15 14:08:41,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:08:41,419 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 168 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:41,420 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [168 Valid, 506 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:08:41,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96473 states. [2022-03-15 14:08:43,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96473 to 52970. [2022-03-15 14:08:43,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52970 states, 52969 states have (on average 4.54828295795654) internal successors, (240918), 52969 states have internal predecessors, (240918), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:44,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52970 states to 52970 states and 240918 transitions. [2022-03-15 14:08:44,106 INFO L78 Accepts]: Start accepts. Automaton has 52970 states and 240918 transitions. Word has length 86 [2022-03-15 14:08:44,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:44,107 INFO L470 AbstractCegarLoop]: Abstraction has 52970 states and 240918 transitions. [2022-03-15 14:08:44,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:44,107 INFO L276 IsEmpty]: Start isEmpty. Operand 52970 states and 240918 transitions. [2022-03-15 14:08:44,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:08:44,579 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:44,580 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] [2022-03-15 14:08:44,580 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-15 14:08:44,580 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:08:44,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:44,581 INFO L85 PathProgramCache]: Analyzing trace with hash 478926261, now seen corresponding path program 5 times [2022-03-15 14:08:44,581 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:44,581 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003117264] [2022-03-15 14:08:44,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:44,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:44,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:44,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:44,640 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:44,640 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003117264] [2022-03-15 14:08:44,640 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003117264] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:08:44,640 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:08:44,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:08:44,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311296018] [2022-03-15 14:08:44,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:08:44,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:08:44,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:44,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:08:44,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:08:44,641 INFO L87 Difference]: Start difference. First operand 52970 states and 240918 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:45,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:45,723 INFO L93 Difference]: Finished difference Result 85505 states and 383511 transitions. [2022-03-15 14:08:45,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:08:45,724 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:08:45,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:46,149 INFO L225 Difference]: With dead ends: 85505 [2022-03-15 14:08:46,149 INFO L226 Difference]: Without dead ends: 82607 [2022-03-15 14:08:46,149 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:08:46,150 INFO L933 BasicCegarLoop]: 192 mSDtfsCounter, 188 mSDsluCounter, 276 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 113 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:46,151 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [188 Valid, 431 Invalid, 113 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:08:46,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82607 states. [2022-03-15 14:08:48,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82607 to 52790. [2022-03-15 14:08:48,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52790 states, 52789 states have (on average 4.539468449866449) internal successors, (239634), 52789 states have internal predecessors, (239634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:48,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52790 states to 52790 states and 239634 transitions. [2022-03-15 14:08:48,691 INFO L78 Accepts]: Start accepts. Automaton has 52790 states and 239634 transitions. Word has length 86 [2022-03-15 14:08:48,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:48,691 INFO L470 AbstractCegarLoop]: Abstraction has 52790 states and 239634 transitions. [2022-03-15 14:08:48,692 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:48,692 INFO L276 IsEmpty]: Start isEmpty. Operand 52790 states and 239634 transitions. [2022-03-15 14:08:48,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:08:48,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:48,847 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] [2022-03-15 14:08:48,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-15 14:08:48,848 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:08:48,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:48,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1260315515, now seen corresponding path program 6 times [2022-03-15 14:08:48,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:48,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697934649] [2022-03-15 14:08:48,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:48,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:48,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:48,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:48,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:48,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697934649] [2022-03-15 14:08:48,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697934649] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:08:48,940 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:08:48,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:08:48,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803474671] [2022-03-15 14:08:48,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:08:48,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:08:48,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:48,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:08:48,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:08:48,941 INFO L87 Difference]: Start difference. First operand 52790 states and 239634 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:50,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:50,368 INFO L93 Difference]: Finished difference Result 100238 states and 453654 transitions. [2022-03-15 14:08:50,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:08:50,383 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:08:50,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:50,932 INFO L225 Difference]: With dead ends: 100238 [2022-03-15 14:08:50,933 INFO L226 Difference]: Without dead ends: 98600 [2022-03-15 14:08:50,933 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:08:50,933 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 210 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 210 SdHoareTripleChecker+Valid, 466 SdHoareTripleChecker+Invalid, 151 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 150 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:50,934 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 466 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 14:08:51,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98600 states. [2022-03-15 14:08:53,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98600 to 54893. [2022-03-15 14:08:53,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54893 states, 54892 states have (on average 4.540315528674488) internal successors, (249227), 54892 states have internal predecessors, (249227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:53,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54893 states to 54893 states and 249227 transitions. [2022-03-15 14:08:53,581 INFO L78 Accepts]: Start accepts. Automaton has 54893 states and 249227 transitions. Word has length 86 [2022-03-15 14:08:53,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:53,581 INFO L470 AbstractCegarLoop]: Abstraction has 54893 states and 249227 transitions. [2022-03-15 14:08:53,581 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:53,581 INFO L276 IsEmpty]: Start isEmpty. Operand 54893 states and 249227 transitions. [2022-03-15 14:08:53,741 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:08:53,742 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:53,742 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] [2022-03-15 14:08:53,742 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-03-15 14:08:53,742 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:08:53,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:53,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1792750199, now seen corresponding path program 7 times [2022-03-15 14:08:53,742 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:53,743 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055943618] [2022-03-15 14:08:53,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:53,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:53,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:53,787 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:53,787 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:53,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055943618] [2022-03-15 14:08:53,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055943618] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:08:53,788 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:08:53,788 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:08:53,788 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202695782] [2022-03-15 14:08:53,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:08:53,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:08:53,788 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:53,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:08:53,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:08:53,789 INFO L87 Difference]: Start difference. First operand 54893 states and 249227 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:54,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:54,707 INFO L93 Difference]: Finished difference Result 77150 states and 348494 transitions. [2022-03-15 14:08:54,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:08:54,707 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:08:54,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:55,316 INFO L225 Difference]: With dead ends: 77150 [2022-03-15 14:08:55,316 INFO L226 Difference]: Without dead ends: 77150 [2022-03-15 14:08:55,316 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:08:55,317 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 151 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 212 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 216 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:55,317 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 708 Invalid, 216 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 212 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:08:55,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77150 states. [2022-03-15 14:08:57,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77150 to 56009. [2022-03-15 14:08:57,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56009 states, 56008 states have (on average 4.544350807027567) internal successors, (254520), 56008 states have internal predecessors, (254520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:57,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56009 states to 56009 states and 254520 transitions. [2022-03-15 14:08:57,786 INFO L78 Accepts]: Start accepts. Automaton has 56009 states and 254520 transitions. Word has length 86 [2022-03-15 14:08:57,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:08:57,787 INFO L470 AbstractCegarLoop]: Abstraction has 56009 states and 254520 transitions. [2022-03-15 14:08:57,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:57,787 INFO L276 IsEmpty]: Start isEmpty. Operand 56009 states and 254520 transitions. [2022-03-15 14:08:57,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:08:57,959 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:08:57,960 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] [2022-03-15 14:08:57,960 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-15 14:08:57,960 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:08:57,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:08:57,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1571446077, now seen corresponding path program 4 times [2022-03-15 14:08:57,960 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:08:57,960 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [279111993] [2022-03-15 14:08:57,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:08:57,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:08:58,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:08:58,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:08:58,031 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:08:58,031 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [279111993] [2022-03-15 14:08:58,031 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [279111993] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:08:58,031 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:08:58,031 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:08:58,032 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232966449] [2022-03-15 14:08:58,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:08:58,032 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:08:58,032 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:08:58,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:08:58,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:08:58,032 INFO L87 Difference]: Start difference. First operand 56009 states and 254520 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:08:59,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:08:59,136 INFO L93 Difference]: Finished difference Result 93608 states and 421800 transitions. [2022-03-15 14:08:59,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:08:59,136 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:08:59,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:08:59,814 INFO L225 Difference]: With dead ends: 93608 [2022-03-15 14:08:59,814 INFO L226 Difference]: Without dead ends: 93608 [2022-03-15 14:08:59,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:08:59,815 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 151 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 386 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:08:59,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 386 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:09:00,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93608 states. [2022-03-15 14:09:02,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93608 to 58043. [2022-03-15 14:09:02,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58043 states, 58042 states have (on average 4.537989731573688) internal successors, (263394), 58042 states have internal predecessors, (263394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:02,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58043 states to 58043 states and 263394 transitions. [2022-03-15 14:09:02,863 INFO L78 Accepts]: Start accepts. Automaton has 58043 states and 263394 transitions. Word has length 86 [2022-03-15 14:09:02,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:02,877 INFO L470 AbstractCegarLoop]: Abstraction has 58043 states and 263394 transitions. [2022-03-15 14:09:02,877 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:02,877 INFO L276 IsEmpty]: Start isEmpty. Operand 58043 states and 263394 transitions. [2022-03-15 14:09:03,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:09:03,110 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:03,110 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] [2022-03-15 14:09:03,110 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-03-15 14:09:03,110 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:03,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:03,110 INFO L85 PathProgramCache]: Analyzing trace with hash -341330783, now seen corresponding path program 5 times [2022-03-15 14:09:03,110 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:03,110 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672257712] [2022-03-15 14:09:03,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:03,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:03,159 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:09:03,159 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:03,159 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672257712] [2022-03-15 14:09:03,159 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672257712] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:09:03,159 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:09:03,159 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:09:03,160 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878356558] [2022-03-15 14:09:03,160 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:09:03,160 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:09:03,160 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:03,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:09:03,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:09:03,160 INFO L87 Difference]: Start difference. First operand 58043 states and 263394 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:04,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:04,280 INFO L93 Difference]: Finished difference Result 91238 states and 407423 transitions. [2022-03-15 14:09:04,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:09:04,289 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:09:04,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:04,802 INFO L225 Difference]: With dead ends: 91238 [2022-03-15 14:09:04,802 INFO L226 Difference]: Without dead ends: 89780 [2022-03-15 14:09:04,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:09:04,803 INFO L933 BasicCegarLoop]: 183 mSDtfsCounter, 230 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:04,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [230 Valid, 384 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:09:05,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89780 states. [2022-03-15 14:09:07,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89780 to 53606. [2022-03-15 14:09:07,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53606 states, 53605 states have (on average 4.523365357709169) internal successors, (242475), 53605 states have internal predecessors, (242475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:07,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53606 states to 53606 states and 242475 transitions. [2022-03-15 14:09:07,642 INFO L78 Accepts]: Start accepts. Automaton has 53606 states and 242475 transitions. Word has length 86 [2022-03-15 14:09:07,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:07,643 INFO L470 AbstractCegarLoop]: Abstraction has 53606 states and 242475 transitions. [2022-03-15 14:09:07,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:07,643 INFO L276 IsEmpty]: Start isEmpty. Operand 53606 states and 242475 transitions. [2022-03-15 14:09:07,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:09:07,816 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:07,816 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] [2022-03-15 14:09:07,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-03-15 14:09:07,817 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:07,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:07,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1561519303, now seen corresponding path program 6 times [2022-03-15 14:09:07,817 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:07,817 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303671550] [2022-03-15 14:09:07,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:07,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:07,929 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:09:07,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:07,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303671550] [2022-03-15 14:09:07,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303671550] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:09:07,929 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:09:07,929 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:09:07,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039994560] [2022-03-15 14:09:07,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:09:07,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:09:07,931 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:07,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:09:07,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:09:07,931 INFO L87 Difference]: Start difference. First operand 53606 states and 242475 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:09,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:09,404 INFO L93 Difference]: Finished difference Result 82670 states and 369701 transitions. [2022-03-15 14:09:09,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:09:09,405 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:09:09,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:10,245 INFO L225 Difference]: With dead ends: 82670 [2022-03-15 14:09:10,245 INFO L226 Difference]: Without dead ends: 81392 [2022-03-15 14:09:10,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:09:10,246 INFO L933 BasicCegarLoop]: 159 mSDtfsCounter, 145 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:10,246 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 411 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:09:10,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81392 states. [2022-03-15 14:09:12,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81392 to 52367. [2022-03-15 14:09:12,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52367 states, 52366 states have (on average 4.535557422755223) internal successors, (237509), 52366 states have internal predecessors, (237509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:12,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52367 states to 52367 states and 237509 transitions. [2022-03-15 14:09:12,678 INFO L78 Accepts]: Start accepts. Automaton has 52367 states and 237509 transitions. Word has length 86 [2022-03-15 14:09:12,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:12,679 INFO L470 AbstractCegarLoop]: Abstraction has 52367 states and 237509 transitions. [2022-03-15 14:09:12,679 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:12,679 INFO L276 IsEmpty]: Start isEmpty. Operand 52367 states and 237509 transitions. [2022-03-15 14:09:12,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:09:12,847 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:12,847 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] [2022-03-15 14:09:12,847 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-15 14:09:12,847 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:12,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:12,848 INFO L85 PathProgramCache]: Analyzing trace with hash 59267419, now seen corresponding path program 7 times [2022-03-15 14:09:12,848 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:12,848 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12480428] [2022-03-15 14:09:12,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:12,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:12,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:12,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:09:12,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:12,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12480428] [2022-03-15 14:09:12,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12480428] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:09:12,915 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:09:12,915 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:09:12,915 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1967207529] [2022-03-15 14:09:12,915 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:09:12,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:09:12,915 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:12,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:09:12,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:09:12,915 INFO L87 Difference]: Start difference. First operand 52367 states and 237509 transitions. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:13,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:13,762 INFO L93 Difference]: Finished difference Result 62549 states and 283434 transitions. [2022-03-15 14:09:13,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:09:13,762 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:09:13,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:14,125 INFO L225 Difference]: With dead ends: 62549 [2022-03-15 14:09:14,125 INFO L226 Difference]: Without dead ends: 61091 [2022-03-15 14:09:14,126 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:09:14,126 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 102 mSDsluCounter, 344 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 450 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:14,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [102 Valid, 450 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:09:14,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61091 states. [2022-03-15 14:09:15,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61091 to 50123. [2022-03-15 14:09:15,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50123 states, 50122 states have (on average 4.5509357168508835) internal successors, (228102), 50122 states have internal predecessors, (228102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:16,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50123 states to 50123 states and 228102 transitions. [2022-03-15 14:09:16,045 INFO L78 Accepts]: Start accepts. Automaton has 50123 states and 228102 transitions. Word has length 86 [2022-03-15 14:09:16,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:16,046 INFO L470 AbstractCegarLoop]: Abstraction has 50123 states and 228102 transitions. [2022-03-15 14:09:16,046 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:16,046 INFO L276 IsEmpty]: Start isEmpty. Operand 50123 states and 228102 transitions. [2022-03-15 14:09:16,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:09:16,490 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:16,490 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] [2022-03-15 14:09:16,490 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-03-15 14:09:16,491 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:16,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:16,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1526260539, now seen corresponding path program 8 times [2022-03-15 14:09:16,491 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:16,491 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972141797] [2022-03-15 14:09:16,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:16,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:16,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:16,586 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:09:16,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:16,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972141797] [2022-03-15 14:09:16,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972141797] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:09:16,586 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:09:16,586 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:09:16,587 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561727854] [2022-03-15 14:09:16,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:09:16,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:09:16,587 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:16,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:09:16,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:09:16,587 INFO L87 Difference]: Start difference. First operand 50123 states and 228102 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:17,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:17,517 INFO L93 Difference]: Finished difference Result 77939 states and 355218 transitions. [2022-03-15 14:09:17,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:09:17,518 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:09:17,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:17,931 INFO L225 Difference]: With dead ends: 77939 [2022-03-15 14:09:17,932 INFO L226 Difference]: Without dead ends: 77939 [2022-03-15 14:09:17,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:09:17,932 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 149 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 536 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:17,932 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 536 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:09:18,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77939 states. [2022-03-15 14:09:19,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77939 to 49973. [2022-03-15 14:09:19,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49973 states, 49972 states have (on average 4.551188665652766) internal successors, (227432), 49972 states have internal predecessors, (227432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:20,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49973 states to 49973 states and 227432 transitions. [2022-03-15 14:09:20,395 INFO L78 Accepts]: Start accepts. Automaton has 49973 states and 227432 transitions. Word has length 86 [2022-03-15 14:09:20,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:20,396 INFO L470 AbstractCegarLoop]: Abstraction has 49973 states and 227432 transitions. [2022-03-15 14:09:20,396 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:20,396 INFO L276 IsEmpty]: Start isEmpty. Operand 49973 states and 227432 transitions. [2022-03-15 14:09:20,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:09:20,584 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:20,584 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] [2022-03-15 14:09:20,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-03-15 14:09:20,584 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:20,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:20,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1992109229, now seen corresponding path program 9 times [2022-03-15 14:09:20,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:20,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318183958] [2022-03-15 14:09:20,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:20,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:20,632 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:09:20,632 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:20,632 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318183958] [2022-03-15 14:09:20,632 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318183958] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:09:20,632 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:09:20,632 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:09:20,632 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693006833] [2022-03-15 14:09:20,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:09:20,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:09:20,633 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:20,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:09:20,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:09:20,633 INFO L87 Difference]: Start difference. First operand 49973 states and 227432 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:21,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:21,619 INFO L93 Difference]: Finished difference Result 75881 states and 345948 transitions. [2022-03-15 14:09:21,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:09:21,619 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:09:21,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:21,985 INFO L225 Difference]: With dead ends: 75881 [2022-03-15 14:09:21,985 INFO L226 Difference]: Without dead ends: 75881 [2022-03-15 14:09:21,985 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:09:21,986 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 159 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 579 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:21,986 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [159 Valid, 579 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:09:22,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75881 states. [2022-03-15 14:09:23,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75881 to 49403. [2022-03-15 14:09:23,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49403 states, 49402 states have (on average 4.55066596494069) internal successors, (224812), 49402 states have internal predecessors, (224812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:24,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49403 states to 49403 states and 224812 transitions. [2022-03-15 14:09:24,218 INFO L78 Accepts]: Start accepts. Automaton has 49403 states and 224812 transitions. Word has length 86 [2022-03-15 14:09:24,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:24,220 INFO L470 AbstractCegarLoop]: Abstraction has 49403 states and 224812 transitions. [2022-03-15 14:09:24,220 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:24,226 INFO L276 IsEmpty]: Start isEmpty. Operand 49403 states and 224812 transitions. [2022-03-15 14:09:24,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-03-15 14:09:24,418 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:24,419 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] [2022-03-15 14:09:24,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-03-15 14:09:24,419 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:24,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:24,419 INFO L85 PathProgramCache]: Analyzing trace with hash -203147259, now seen corresponding path program 10 times [2022-03-15 14:09:24,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:24,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816106769] [2022-03-15 14:09:24,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:24,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:24,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:24,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:09:24,453 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:24,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816106769] [2022-03-15 14:09:24,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816106769] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:09:24,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:09:24,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:09:24,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514386798] [2022-03-15 14:09:24,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:09:24,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:09:24,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:24,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:09:24,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:09:24,454 INFO L87 Difference]: Start difference. First operand 49403 states and 224812 transitions. Second operand has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:25,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:25,409 INFO L93 Difference]: Finished difference Result 74441 states and 339204 transitions. [2022-03-15 14:09:25,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:09:25,409 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2022-03-15 14:09:25,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:25,984 INFO L225 Difference]: With dead ends: 74441 [2022-03-15 14:09:25,984 INFO L226 Difference]: Without dead ends: 74441 [2022-03-15 14:09:25,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:09:25,985 INFO L933 BasicCegarLoop]: 169 mSDtfsCounter, 259 mSDsluCounter, 314 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 438 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:25,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [259 Valid, 438 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:09:26,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74441 states. [2022-03-15 14:09:27,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74441 to 45899. [2022-03-15 14:09:27,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45899 states, 45898 states have (on average 4.54259444855985) internal successors, (208496), 45898 states have internal predecessors, (208496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:28,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45899 states to 45899 states and 208496 transitions. [2022-03-15 14:09:28,199 INFO L78 Accepts]: Start accepts. Automaton has 45899 states and 208496 transitions. Word has length 86 [2022-03-15 14:09:28,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:28,199 INFO L470 AbstractCegarLoop]: Abstraction has 45899 states and 208496 transitions. [2022-03-15 14:09:28,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.333333333333334) internal successors, (86), 6 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:28,200 INFO L276 IsEmpty]: Start isEmpty. Operand 45899 states and 208496 transitions. [2022-03-15 14:09:28,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-15 14:09:28,331 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:28,331 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] [2022-03-15 14:09:28,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-03-15 14:09:28,331 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:28,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:28,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1593679681, now seen corresponding path program 1 times [2022-03-15 14:09:28,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:28,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246795229] [2022-03-15 14:09:28,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:28,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:28,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:09:28,382 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:28,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246795229] [2022-03-15 14:09:28,383 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246795229] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:09:28,383 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880007174] [2022-03-15 14:09:28,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:28,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:09:28,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:09:28,394 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:09:28,396 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-15 14:09:28,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:28,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-15 14:09:28,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:09:28,632 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:09:28,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:09:28,763 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:09:28,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880007174] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:09:28,763 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:09:28,763 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-03-15 14:09:28,763 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316927397] [2022-03-15 14:09:28,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:09:28,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:09:28,764 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:28,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:09:28,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:09:28,764 INFO L87 Difference]: Start difference. First operand 45899 states and 208496 transitions. Second operand has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:29,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:29,909 INFO L93 Difference]: Finished difference Result 79094 states and 360312 transitions. [2022-03-15 14:09:29,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 14:09:29,910 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 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 [2022-03-15 14:09:29,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:30,312 INFO L225 Difference]: With dead ends: 79094 [2022-03-15 14:09:30,312 INFO L226 Difference]: Without dead ends: 79094 [2022-03-15 14:09:30,312 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 178 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:09:30,314 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 421 mSDsluCounter, 1208 mSDsCounter, 0 mSdLazyCounter, 405 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 421 SdHoareTripleChecker+Valid, 1257 SdHoareTripleChecker+Invalid, 407 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 405 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:30,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [421 Valid, 1257 Invalid, 407 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 405 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:09:30,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79094 states. [2022-03-15 14:09:32,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79094 to 44714. [2022-03-15 14:09:32,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44714 states, 44713 states have (on average 4.541162525440028) internal successors, (203049), 44713 states have internal predecessors, (203049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:32,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44714 states to 44714 states and 203049 transitions. [2022-03-15 14:09:32,932 INFO L78 Accepts]: Start accepts. Automaton has 44714 states and 203049 transitions. Word has length 91 [2022-03-15 14:09:32,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:32,933 INFO L470 AbstractCegarLoop]: Abstraction has 44714 states and 203049 transitions. [2022-03-15 14:09:32,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.222222222222221) internal successors, (101), 9 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:32,933 INFO L276 IsEmpty]: Start isEmpty. Operand 44714 states and 203049 transitions. [2022-03-15 14:09:33,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-15 14:09:33,052 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:33,052 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] [2022-03-15 14:09:33,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-15 14:09:33,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-03-15 14:09:33,268 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:33,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:33,269 INFO L85 PathProgramCache]: Analyzing trace with hash -136039099, now seen corresponding path program 2 times [2022-03-15 14:09:33,269 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:33,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810542824] [2022-03-15 14:09:33,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:33,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:33,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:33,317 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:09:33,317 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:33,317 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810542824] [2022-03-15 14:09:33,317 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810542824] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:09:33,317 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:09:33,317 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:09:33,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055073509] [2022-03-15 14:09:33,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:09:33,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:09:33,318 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:33,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:09:33,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:09:33,318 INFO L87 Difference]: Start difference. First operand 44714 states and 203049 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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) [2022-03-15 14:09:34,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:34,352 INFO L93 Difference]: Finished difference Result 79805 states and 362798 transitions. [2022-03-15 14:09:34,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:09:34,352 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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 [2022-03-15 14:09:34,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:34,882 INFO L225 Difference]: With dead ends: 79805 [2022-03-15 14:09:34,882 INFO L226 Difference]: Without dead ends: 79805 [2022-03-15 14:09:34,882 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:09:34,883 INFO L933 BasicCegarLoop]: 171 mSDtfsCounter, 207 mSDsluCounter, 596 mSDsCounter, 0 mSdLazyCounter, 235 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 207 SdHoareTripleChecker+Valid, 681 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 235 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:34,883 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 681 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:09:35,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79805 states. [2022-03-15 14:09:36,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79805 to 44522. [2022-03-15 14:09:36,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44522 states, 44521 states have (on average 4.5408458929493944) internal successors, (202163), 44521 states have internal predecessors, (202163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:37,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44522 states to 44522 states and 202163 transitions. [2022-03-15 14:09:37,367 INFO L78 Accepts]: Start accepts. Automaton has 44522 states and 202163 transitions. Word has length 91 [2022-03-15 14:09:37,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:37,368 INFO L470 AbstractCegarLoop]: Abstraction has 44522 states and 202163 transitions. [2022-03-15 14:09:37,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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) [2022-03-15 14:09:37,368 INFO L276 IsEmpty]: Start isEmpty. Operand 44522 states and 202163 transitions. [2022-03-15 14:09:37,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-15 14:09:37,502 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:37,502 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] [2022-03-15 14:09:37,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-03-15 14:09:37,503 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:37,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:37,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1630178977, now seen corresponding path program 3 times [2022-03-15 14:09:37,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:37,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610027195] [2022-03-15 14:09:37,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:37,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:37,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:37,598 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:09:37,598 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:37,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [610027195] [2022-03-15 14:09:37,598 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [610027195] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:09:37,598 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636772256] [2022-03-15 14:09:37,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:09:37,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:09:37,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:09:37,600 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:09:37,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-15 14:09:37,682 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-15 14:09:37,682 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:09:37,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-15 14:09:37,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:09:37,870 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:09:37,871 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:09:37,997 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:09:37,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636772256] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:09:37,997 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:09:37,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-03-15 14:09:37,998 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238522533] [2022-03-15 14:09:37,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:09:37,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 14:09:37,998 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:37,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 14:09:37,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-03-15 14:09:37,999 INFO L87 Difference]: Start difference. First operand 44522 states and 202163 transitions. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:39,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:39,611 INFO L93 Difference]: Finished difference Result 111947 states and 499493 transitions. [2022-03-15 14:09:39,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-03-15 14:09:39,611 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 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 [2022-03-15 14:09:39,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:40,199 INFO L225 Difference]: With dead ends: 111947 [2022-03-15 14:09:40,200 INFO L226 Difference]: Without dead ends: 111947 [2022-03-15 14:09:40,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-03-15 14:09:40,201 INFO L933 BasicCegarLoop]: 209 mSDtfsCounter, 525 mSDsluCounter, 1404 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 525 SdHoareTripleChecker+Valid, 1414 SdHoareTripleChecker+Invalid, 493 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:40,201 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [525 Valid, 1414 Invalid, 493 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:09:40,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111947 states. [2022-03-15 14:09:42,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111947 to 44906. [2022-03-15 14:09:42,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44906 states, 44905 states have (on average 4.55009464424897) internal successors, (204322), 44905 states have internal predecessors, (204322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:42,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44906 states to 44906 states and 204322 transitions. [2022-03-15 14:09:42,896 INFO L78 Accepts]: Start accepts. Automaton has 44906 states and 204322 transitions. Word has length 91 [2022-03-15 14:09:42,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:42,896 INFO L470 AbstractCegarLoop]: Abstraction has 44906 states and 204322 transitions. [2022-03-15 14:09:42,896 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:42,896 INFO L276 IsEmpty]: Start isEmpty. Operand 44906 states and 204322 transitions. [2022-03-15 14:09:43,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-15 14:09:43,016 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:43,016 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] [2022-03-15 14:09:43,033 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-15 14:09:43,232 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:09:43,232 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:43,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:43,233 INFO L85 PathProgramCache]: Analyzing trace with hash -2036896451, now seen corresponding path program 4 times [2022-03-15 14:09:43,233 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:43,233 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278109966] [2022-03-15 14:09:43,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:43,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:43,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:43,320 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:09:43,320 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:43,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278109966] [2022-03-15 14:09:43,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278109966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:09:43,320 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:09:43,320 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:09:43,321 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469872114] [2022-03-15 14:09:43,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:09:43,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:09:43,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:43,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:09:43,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:09:43,321 INFO L87 Difference]: Start difference. First operand 44906 states and 204322 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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) [2022-03-15 14:09:44,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:44,608 INFO L93 Difference]: Finished difference Result 96260 states and 432304 transitions. [2022-03-15 14:09:44,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:09:44,608 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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 [2022-03-15 14:09:44,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:45,509 INFO L225 Difference]: With dead ends: 96260 [2022-03-15 14:09:45,509 INFO L226 Difference]: Without dead ends: 96260 [2022-03-15 14:09:45,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:09:45,510 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 217 mSDsluCounter, 360 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 217 SdHoareTripleChecker+Valid, 480 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:45,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [217 Valid, 480 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:09:45,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96260 states. [2022-03-15 14:09:47,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96260 to 43853. [2022-03-15 14:09:47,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43853 states, 43852 states have (on average 4.523693332117121) internal successors, (198373), 43852 states have internal predecessors, (198373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:47,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43853 states to 43853 states and 198373 transitions. [2022-03-15 14:09:47,562 INFO L78 Accepts]: Start accepts. Automaton has 43853 states and 198373 transitions. Word has length 91 [2022-03-15 14:09:47,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:47,562 INFO L470 AbstractCegarLoop]: Abstraction has 43853 states and 198373 transitions. [2022-03-15 14:09:47,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 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) [2022-03-15 14:09:47,563 INFO L276 IsEmpty]: Start isEmpty. Operand 43853 states and 198373 transitions. [2022-03-15 14:09:47,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-15 14:09:47,941 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:47,941 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] [2022-03-15 14:09:47,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-03-15 14:09:47,942 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:47,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:47,942 INFO L85 PathProgramCache]: Analyzing trace with hash -6129173, now seen corresponding path program 5 times [2022-03-15 14:09:47,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:47,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108014978] [2022-03-15 14:09:47,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:47,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:47,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:48,025 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:09:48,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:48,026 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108014978] [2022-03-15 14:09:48,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108014978] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:09:48,026 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:09:48,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:09:48,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575151167] [2022-03-15 14:09:48,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:09:48,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:09:48,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:48,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:09:48,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:09:48,027 INFO L87 Difference]: Start difference. First operand 43853 states and 198373 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 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) [2022-03-15 14:09:48,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:48,497 INFO L93 Difference]: Finished difference Result 59753 states and 269123 transitions. [2022-03-15 14:09:48,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:09:48,497 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 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 [2022-03-15 14:09:48,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:49,090 INFO L225 Difference]: With dead ends: 59753 [2022-03-15 14:09:49,090 INFO L226 Difference]: Without dead ends: 58601 [2022-03-15 14:09:49,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:09:49,091 INFO L933 BasicCegarLoop]: 172 mSDtfsCounter, 107 mSDsluCounter, 288 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 423 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:49,094 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 423 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:09:49,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58601 states. [2022-03-15 14:09:50,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58601 to 43823. [2022-03-15 14:09:50,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43823 states, 43822 states have (on average 4.523047784217972) internal successors, (198209), 43822 states have internal predecessors, (198209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:50,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43823 states to 43823 states and 198209 transitions. [2022-03-15 14:09:50,780 INFO L78 Accepts]: Start accepts. Automaton has 43823 states and 198209 transitions. Word has length 91 [2022-03-15 14:09:50,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:50,780 INFO L470 AbstractCegarLoop]: Abstraction has 43823 states and 198209 transitions. [2022-03-15 14:09:50,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 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) [2022-03-15 14:09:50,780 INFO L276 IsEmpty]: Start isEmpty. Operand 43823 states and 198209 transitions. [2022-03-15 14:09:50,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-15 14:09:50,896 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:50,896 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] [2022-03-15 14:09:50,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-03-15 14:09:50,896 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:50,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:50,897 INFO L85 PathProgramCache]: Analyzing trace with hash -552359655, now seen corresponding path program 6 times [2022-03-15 14:09:50,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:50,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1037595338] [2022-03-15 14:09:50,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:50,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:50,954 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:09:50,954 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:50,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1037595338] [2022-03-15 14:09:50,954 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1037595338] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:09:50,954 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587809087] [2022-03-15 14:09:50,954 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-15 14:09:50,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:09:50,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:09:50,960 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:09:50,964 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-15 14:09:51,044 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-03-15 14:09:51,044 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:09:51,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-15 14:09:51,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:09:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:09:51,187 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:09:51,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:09:51,307 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587809087] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:09:51,307 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:09:51,307 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-03-15 14:09:51,308 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107535786] [2022-03-15 14:09:51,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:09:51,308 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-15 14:09:51,308 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:51,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-15 14:09:51,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-15 14:09:51,308 INFO L87 Difference]: Start difference. First operand 43823 states and 198209 transitions. Second operand has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:52,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:52,285 INFO L93 Difference]: Finished difference Result 86387 states and 384288 transitions. [2022-03-15 14:09:52,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 14:09:52,285 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 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 [2022-03-15 14:09:52,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:52,949 INFO L225 Difference]: With dead ends: 86387 [2022-03-15 14:09:52,949 INFO L226 Difference]: Without dead ends: 86387 [2022-03-15 14:09:52,949 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-15 14:09:52,950 INFO L933 BasicCegarLoop]: 210 mSDtfsCounter, 464 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 1043 SdHoareTripleChecker+Invalid, 328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:52,950 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [464 Valid, 1043 Invalid, 328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:09:53,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86387 states. [2022-03-15 14:09:54,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86387 to 43430. [2022-03-15 14:09:54,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43430 states, 43429 states have (on average 4.51343572267379) internal successors, (196014), 43429 states have internal predecessors, (196014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:54,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43430 states to 43430 states and 196014 transitions. [2022-03-15 14:09:54,926 INFO L78 Accepts]: Start accepts. Automaton has 43430 states and 196014 transitions. Word has length 91 [2022-03-15 14:09:54,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:54,927 INFO L470 AbstractCegarLoop]: Abstraction has 43430 states and 196014 transitions. [2022-03-15 14:09:54,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.727272727272727) internal successors, (118), 11 states have internal predecessors, (118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:54,934 INFO L276 IsEmpty]: Start isEmpty. Operand 43430 states and 196014 transitions. [2022-03-15 14:09:55,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-15 14:09:55,056 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:55,056 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] [2022-03-15 14:09:55,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-15 14:09:55,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:09:55,274 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:55,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:55,274 INFO L85 PathProgramCache]: Analyzing trace with hash -993622783, now seen corresponding path program 7 times [2022-03-15 14:09:55,274 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:55,274 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213073242] [2022-03-15 14:09:55,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:55,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:55,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:55,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:09:55,325 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:55,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213073242] [2022-03-15 14:09:55,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213073242] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:09:55,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:09:55,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:09:55,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448878028] [2022-03-15 14:09:55,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:09:55,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:09:55,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:55,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:09:55,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:09:55,327 INFO L87 Difference]: Start difference. First operand 43430 states and 196014 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 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) [2022-03-15 14:09:56,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:56,147 INFO L93 Difference]: Finished difference Result 74096 states and 329713 transitions. [2022-03-15 14:09:56,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:09:56,147 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 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 [2022-03-15 14:09:56,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:09:56,716 INFO L225 Difference]: With dead ends: 74096 [2022-03-15 14:09:56,716 INFO L226 Difference]: Without dead ends: 72944 [2022-03-15 14:09:56,716 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:09:56,717 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 133 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 146 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:09:56,717 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [133 Valid, 507 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:09:56,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72944 states. [2022-03-15 14:09:58,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72944 to 43400. [2022-03-15 14:09:58,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43400 states, 43399 states have (on average 4.512776792091984) internal successors, (195850), 43399 states have internal predecessors, (195850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:09:58,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43400 states to 43400 states and 195850 transitions. [2022-03-15 14:09:58,484 INFO L78 Accepts]: Start accepts. Automaton has 43400 states and 195850 transitions. Word has length 91 [2022-03-15 14:09:58,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:09:58,484 INFO L470 AbstractCegarLoop]: Abstraction has 43400 states and 195850 transitions. [2022-03-15 14:09:58,484 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 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) [2022-03-15 14:09:58,484 INFO L276 IsEmpty]: Start isEmpty. Operand 43400 states and 195850 transitions. [2022-03-15 14:09:58,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-03-15 14:09:58,607 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:09:58,607 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] [2022-03-15 14:09:58,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-03-15 14:09:58,607 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:09:58,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:09:58,608 INFO L85 PathProgramCache]: Analyzing trace with hash 1938111767, now seen corresponding path program 8 times [2022-03-15 14:09:58,608 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:09:58,608 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519579186] [2022-03-15 14:09:58,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:09:58,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:09:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:09:58,681 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:09:58,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:09:58,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519579186] [2022-03-15 14:09:58,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519579186] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:09:58,681 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:09:58,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:09:58,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082189388] [2022-03-15 14:09:58,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:09:58,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:09:58,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:09:58,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:09:58,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:09:58,682 INFO L87 Difference]: Start difference. First operand 43400 states and 195850 transitions. Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 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) [2022-03-15 14:09:59,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:09:59,682 INFO L93 Difference]: Finished difference Result 54326 states and 244720 transitions. [2022-03-15 14:09:59,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:09:59,682 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 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 [2022-03-15 14:09:59,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:10:00,101 INFO L225 Difference]: With dead ends: 54326 [2022-03-15 14:10:00,101 INFO L226 Difference]: Without dead ends: 52022 [2022-03-15 14:10:00,101 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:10:00,101 INFO L933 BasicCegarLoop]: 166 mSDtfsCounter, 114 mSDsluCounter, 357 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 474 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:10:00,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 474 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:10:00,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52022 states. [2022-03-15 14:10:01,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52022 to 40958. [2022-03-15 14:10:01,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40958 states, 40957 states have (on average 4.525575603681911) internal successors, (185354), 40957 states have internal predecessors, (185354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:01,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40958 states to 40958 states and 185354 transitions. [2022-03-15 14:10:01,895 INFO L78 Accepts]: Start accepts. Automaton has 40958 states and 185354 transitions. Word has length 91 [2022-03-15 14:10:01,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:10:01,895 INFO L470 AbstractCegarLoop]: Abstraction has 40958 states and 185354 transitions. [2022-03-15 14:10:01,895 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 5 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) [2022-03-15 14:10:01,895 INFO L276 IsEmpty]: Start isEmpty. Operand 40958 states and 185354 transitions. [2022-03-15 14:10:02,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-15 14:10:02,009 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:10:02,013 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] [2022-03-15 14:10:02,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-03-15 14:10:02,014 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:10:02,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:10:02,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1947938087, now seen corresponding path program 1 times [2022-03-15 14:10:02,014 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:10:02,014 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528505939] [2022-03-15 14:10:02,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:10:02,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:10:02,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:10:02,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:10:02,061 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:10:02,061 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528505939] [2022-03-15 14:10:02,062 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528505939] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:10:02,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475253935] [2022-03-15 14:10:02,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:10:02,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:10:02,062 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:10:02,063 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:10:02,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-15 14:10:02,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:10:02,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-15 14:10:02,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:10:02,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:10:02,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:10:02,429 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:10:02,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475253935] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:10:02,429 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:10:02,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-03-15 14:10:02,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [563311122] [2022-03-15 14:10:02,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:10:02,430 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-15 14:10:02,430 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:10:02,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-15 14:10:02,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-15 14:10:02,431 INFO L87 Difference]: Start difference. First operand 40958 states and 185354 transitions. Second operand has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:03,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:10:03,320 INFO L93 Difference]: Finished difference Result 67278 states and 307900 transitions. [2022-03-15 14:10:03,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 14:10:03,321 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 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 96 [2022-03-15 14:10:03,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:10:03,633 INFO L225 Difference]: With dead ends: 67278 [2022-03-15 14:10:03,633 INFO L226 Difference]: Without dead ends: 67278 [2022-03-15 14:10:03,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 188 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:10:03,634 INFO L933 BasicCegarLoop]: 181 mSDtfsCounter, 349 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 349 SdHoareTripleChecker+Valid, 1024 SdHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:10:03,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [349 Valid, 1024 Invalid, 351 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:10:03,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67278 states. [2022-03-15 14:10:05,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67278 to 44623. [2022-03-15 14:10:05,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44623 states, 44622 states have (on average 4.536618708260499) internal successors, (202433), 44622 states have internal predecessors, (202433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:05,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44623 states to 44623 states and 202433 transitions. [2022-03-15 14:10:05,807 INFO L78 Accepts]: Start accepts. Automaton has 44623 states and 202433 transitions. Word has length 96 [2022-03-15 14:10:05,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:10:05,807 INFO L470 AbstractCegarLoop]: Abstraction has 44623 states and 202433 transitions. [2022-03-15 14:10:05,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 11.777777777777779) internal successors, (106), 9 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:05,807 INFO L276 IsEmpty]: Start isEmpty. Operand 44623 states and 202433 transitions. [2022-03-15 14:10:05,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-15 14:10:05,931 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:10:05,931 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, 1, 1, 1, 1, 1] [2022-03-15 14:10:05,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-15 14:10:06,147 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2022-03-15 14:10:06,148 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:10:06,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:10:06,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1878312195, now seen corresponding path program 2 times [2022-03-15 14:10:06,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:10:06,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124570228] [2022-03-15 14:10:06,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:10:06,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:10:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:10:06,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:10:06,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:10:06,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124570228] [2022-03-15 14:10:06,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124570228] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:10:06,194 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:10:06,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:10:06,194 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405216057] [2022-03-15 14:10:06,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:10:06,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:10:06,195 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:10:06,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:10:06,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:10:06,195 INFO L87 Difference]: Start difference. First operand 44623 states and 202433 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:07,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:10:07,163 INFO L93 Difference]: Finished difference Result 78615 states and 359418 transitions. [2022-03-15 14:10:07,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-03-15 14:10:07,163 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-03-15 14:10:07,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:10:07,552 INFO L225 Difference]: With dead ends: 78615 [2022-03-15 14:10:07,552 INFO L226 Difference]: Without dead ends: 78615 [2022-03-15 14:10:07,553 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:10:07,554 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 227 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 205 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:10:07,554 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [227 Valid, 604 Invalid, 205 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:10:07,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78615 states. [2022-03-15 14:10:09,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78615 to 44839. [2022-03-15 14:10:09,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44839 states, 44838 states have (on average 4.536040858200633) internal successors, (203387), 44838 states have internal predecessors, (203387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:09,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44839 states to 44839 states and 203387 transitions. [2022-03-15 14:10:09,841 INFO L78 Accepts]: Start accepts. Automaton has 44839 states and 203387 transitions. Word has length 96 [2022-03-15 14:10:09,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:10:09,842 INFO L470 AbstractCegarLoop]: Abstraction has 44839 states and 203387 transitions. [2022-03-15 14:10:09,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:09,842 INFO L276 IsEmpty]: Start isEmpty. Operand 44839 states and 203387 transitions. [2022-03-15 14:10:09,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-15 14:10:09,969 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:10:09,969 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] [2022-03-15 14:10:09,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-03-15 14:10:09,969 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:10:09,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:10:09,971 INFO L85 PathProgramCache]: Analyzing trace with hash 1276245633, now seen corresponding path program 3 times [2022-03-15 14:10:09,971 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:10:09,971 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004148574] [2022-03-15 14:10:09,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:10:09,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:10:10,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:10:10,042 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:10:10,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:10:10,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004148574] [2022-03-15 14:10:10,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004148574] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:10:10,042 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:10:10,042 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:10:10,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866777222] [2022-03-15 14:10:10,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:10:10,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:10:10,042 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:10:10,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:10:10,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:10:10,043 INFO L87 Difference]: Start difference. First operand 44839 states and 203387 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:10,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:10:10,868 INFO L93 Difference]: Finished difference Result 62259 states and 283965 transitions. [2022-03-15 14:10:10,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:10:10,868 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-03-15 14:10:10,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:10:11,271 INFO L225 Difference]: With dead ends: 62259 [2022-03-15 14:10:11,275 INFO L226 Difference]: Without dead ends: 61899 [2022-03-15 14:10:11,275 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:10:11,276 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 88 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 464 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:10:11,276 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 464 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:10:11,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61899 states. [2022-03-15 14:10:12,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61899 to 44971. [2022-03-15 14:10:12,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44971 states, 44970 states have (on average 4.5356904603068715) internal successors, (203970), 44970 states have internal predecessors, (203970), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:13,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44971 states to 44971 states and 203970 transitions. [2022-03-15 14:10:13,033 INFO L78 Accepts]: Start accepts. Automaton has 44971 states and 203970 transitions. Word has length 96 [2022-03-15 14:10:13,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:10:13,033 INFO L470 AbstractCegarLoop]: Abstraction has 44971 states and 203970 transitions. [2022-03-15 14:10:13,033 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:13,033 INFO L276 IsEmpty]: Start isEmpty. Operand 44971 states and 203970 transitions. [2022-03-15 14:10:13,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-15 14:10:13,454 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:10:13,454 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] [2022-03-15 14:10:13,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-03-15 14:10:13,454 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:10:13,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:10:13,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1252227581, now seen corresponding path program 4 times [2022-03-15 14:10:13,455 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:10:13,455 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869440588] [2022-03-15 14:10:13,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:10:13,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:10:13,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:10:13,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:10:13,525 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:10:13,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869440588] [2022-03-15 14:10:13,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869440588] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:10:13,525 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:10:13,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:10:13,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901424431] [2022-03-15 14:10:13,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:10:13,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:10:13,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:10:13,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:10:13,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:10:13,526 INFO L87 Difference]: Start difference. First operand 44971 states and 203970 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:14,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:10:14,014 INFO L93 Difference]: Finished difference Result 59887 states and 273238 transitions. [2022-03-15 14:10:14,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:10:14,014 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-03-15 14:10:14,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:10:14,548 INFO L225 Difference]: With dead ends: 59887 [2022-03-15 14:10:14,548 INFO L226 Difference]: Without dead ends: 59887 [2022-03-15 14:10:14,548 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:10:14,548 INFO L933 BasicCegarLoop]: 154 mSDtfsCounter, 86 mSDsluCounter, 236 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:10:14,548 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 362 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:10:14,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59887 states. [2022-03-15 14:10:15,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59887 to 45903. [2022-03-15 14:10:15,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45903 states, 45902 states have (on average 4.539083264345781) internal successors, (208353), 45902 states have internal predecessors, (208353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:16,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45903 states to 45903 states and 208353 transitions. [2022-03-15 14:10:16,300 INFO L78 Accepts]: Start accepts. Automaton has 45903 states and 208353 transitions. Word has length 96 [2022-03-15 14:10:16,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:10:16,300 INFO L470 AbstractCegarLoop]: Abstraction has 45903 states and 208353 transitions. [2022-03-15 14:10:16,300 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:16,300 INFO L276 IsEmpty]: Start isEmpty. Operand 45903 states and 208353 transitions. [2022-03-15 14:10:16,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-15 14:10:16,423 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:10:16,423 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] [2022-03-15 14:10:16,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-03-15 14:10:16,423 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:10:16,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:10:16,424 INFO L85 PathProgramCache]: Analyzing trace with hash -1806682297, now seen corresponding path program 5 times [2022-03-15 14:10:16,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:10:16,424 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990349859] [2022-03-15 14:10:16,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:10:16,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:10:16,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:10:16,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:10:16,462 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:10:16,462 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990349859] [2022-03-15 14:10:16,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990349859] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:10:16,462 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:10:16,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:10:16,462 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336715363] [2022-03-15 14:10:16,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:10:16,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:10:16,463 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:10:16,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:10:16,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:10:16,463 INFO L87 Difference]: Start difference. First operand 45903 states and 208353 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:17,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:10:17,296 INFO L93 Difference]: Finished difference Result 76846 states and 352420 transitions. [2022-03-15 14:10:17,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:10:17,297 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-03-15 14:10:17,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:10:17,907 INFO L225 Difference]: With dead ends: 76846 [2022-03-15 14:10:17,907 INFO L226 Difference]: Without dead ends: 76846 [2022-03-15 14:10:17,908 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:10:17,908 INFO L933 BasicCegarLoop]: 163 mSDtfsCounter, 125 mSDsluCounter, 363 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 125 SdHoareTripleChecker+Valid, 475 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:10:17,909 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 475 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:10:18,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76846 states. [2022-03-15 14:10:19,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76846 to 44863. [2022-03-15 14:10:19,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44863 states, 44862 states have (on average 4.535976996121439) internal successors, (203493), 44862 states have internal predecessors, (203493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:19,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44863 states to 44863 states and 203493 transitions. [2022-03-15 14:10:19,853 INFO L78 Accepts]: Start accepts. Automaton has 44863 states and 203493 transitions. Word has length 96 [2022-03-15 14:10:19,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:10:19,854 INFO L470 AbstractCegarLoop]: Abstraction has 44863 states and 203493 transitions. [2022-03-15 14:10:19,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:19,854 INFO L276 IsEmpty]: Start isEmpty. Operand 44863 states and 203493 transitions. [2022-03-15 14:10:19,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-15 14:10:19,969 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:10:19,969 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] [2022-03-15 14:10:19,969 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-03-15 14:10:19,975 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:10:19,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:10:19,976 INFO L85 PathProgramCache]: Analyzing trace with hash 67109195, now seen corresponding path program 6 times [2022-03-15 14:10:19,976 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:10:19,976 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201818481] [2022-03-15 14:10:19,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:10:19,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:10:20,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:10:20,052 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:10:20,053 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:10:20,053 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201818481] [2022-03-15 14:10:20,053 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201818481] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:10:20,053 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:10:20,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:10:20,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646007808] [2022-03-15 14:10:20,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:10:20,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:10:20,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:10:20,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:10:20,054 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:10:20,054 INFO L87 Difference]: Start difference. First operand 44863 states and 203493 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:21,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:10:21,018 INFO L93 Difference]: Finished difference Result 81843 states and 374442 transitions. [2022-03-15 14:10:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:10:21,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-03-15 14:10:21,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:10:21,704 INFO L225 Difference]: With dead ends: 81843 [2022-03-15 14:10:21,704 INFO L226 Difference]: Without dead ends: 81483 [2022-03-15 14:10:21,704 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:10:21,705 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 110 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 397 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:10:21,705 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 397 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:10:21,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81483 states. [2022-03-15 14:10:23,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81483 to 45055. [2022-03-15 14:10:23,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45055 states, 45054 states have (on average 4.536800284103521) internal successors, (204401), 45054 states have internal predecessors, (204401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:23,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45055 states to 45055 states and 204401 transitions. [2022-03-15 14:10:23,750 INFO L78 Accepts]: Start accepts. Automaton has 45055 states and 204401 transitions. Word has length 96 [2022-03-15 14:10:23,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:10:23,750 INFO L470 AbstractCegarLoop]: Abstraction has 45055 states and 204401 transitions. [2022-03-15 14:10:23,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:23,751 INFO L276 IsEmpty]: Start isEmpty. Operand 45055 states and 204401 transitions. [2022-03-15 14:10:23,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-15 14:10:23,883 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:10:23,883 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] [2022-03-15 14:10:23,883 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-03-15 14:10:23,883 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:10:23,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:10:23,884 INFO L85 PathProgramCache]: Analyzing trace with hash 43091143, now seen corresponding path program 7 times [2022-03-15 14:10:23,884 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:10:23,884 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1054419074] [2022-03-15 14:10:23,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:10:23,884 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:10:23,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:10:23,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:10:23,915 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:10:23,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1054419074] [2022-03-15 14:10:23,915 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1054419074] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:10:23,916 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:10:23,916 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:10:23,916 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116536386] [2022-03-15 14:10:23,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:10:23,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:10:23,916 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:10:23,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:10:23,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:10:23,916 INFO L87 Difference]: Start difference. First operand 45055 states and 204401 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:24,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:10:24,763 INFO L93 Difference]: Finished difference Result 79047 states and 361593 transitions. [2022-03-15 14:10:24,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-15 14:10:24,763 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-03-15 14:10:24,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:10:25,706 INFO L225 Difference]: With dead ends: 79047 [2022-03-15 14:10:25,706 INFO L226 Difference]: Without dead ends: 79047 [2022-03-15 14:10:25,706 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:10:25,707 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 112 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:10:25,727 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 356 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:10:25,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79047 states. [2022-03-15 14:10:27,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79047 to 45951. [2022-03-15 14:10:27,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45951 states, 45950 states have (on average 4.539477693144723) internal successors, (208589), 45950 states have internal predecessors, (208589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:28,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45951 states to 45951 states and 208589 transitions. [2022-03-15 14:10:28,192 INFO L78 Accepts]: Start accepts. Automaton has 45951 states and 208589 transitions. Word has length 96 [2022-03-15 14:10:28,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:10:28,192 INFO L470 AbstractCegarLoop]: Abstraction has 45951 states and 208589 transitions. [2022-03-15 14:10:28,192 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:28,193 INFO L276 IsEmpty]: Start isEmpty. Operand 45951 states and 208589 transitions. [2022-03-15 14:10:28,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-15 14:10:28,313 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:10:28,313 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] [2022-03-15 14:10:28,313 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-03-15 14:10:28,313 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:10:28,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:10:28,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1279148561, now seen corresponding path program 8 times [2022-03-15 14:10:28,314 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:10:28,314 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008132966] [2022-03-15 14:10:28,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:10:28,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:10:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:10:28,350 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:10:28,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:10:28,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008132966] [2022-03-15 14:10:28,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008132966] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:10:28,350 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:10:28,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-15 14:10:28,350 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101251725] [2022-03-15 14:10:28,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:10:28,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-15 14:10:28,351 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:10:28,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-15 14:10:28,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:10:28,351 INFO L87 Difference]: Start difference. First operand 45951 states and 208589 transitions. Second operand has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:29,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:10:29,220 INFO L93 Difference]: Finished difference Result 81550 states and 369863 transitions. [2022-03-15 14:10:29,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:10:29,220 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-03-15 14:10:29,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:10:29,862 INFO L225 Difference]: With dead ends: 81550 [2022-03-15 14:10:29,862 INFO L226 Difference]: Without dead ends: 81550 [2022-03-15 14:10:29,862 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-15 14:10:29,863 INFO L933 BasicCegarLoop]: 173 mSDtfsCounter, 156 mSDsluCounter, 383 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 156 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:10:29,863 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [156 Valid, 505 Invalid, 156 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:10:30,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81550 states. [2022-03-15 14:10:31,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81550 to 44887. [2022-03-15 14:10:31,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44887 states, 44886 states have (on average 4.536447890210757) internal successors, (203623), 44886 states have internal predecessors, (203623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44887 states to 44887 states and 203623 transitions. [2022-03-15 14:10:31,832 INFO L78 Accepts]: Start accepts. Automaton has 44887 states and 203623 transitions. Word has length 96 [2022-03-15 14:10:31,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:10:31,832 INFO L470 AbstractCegarLoop]: Abstraction has 44887 states and 203623 transitions. [2022-03-15 14:10:31,832 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.0) internal successors, (96), 6 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:31,833 INFO L276 IsEmpty]: Start isEmpty. Operand 44887 states and 203623 transitions. [2022-03-15 14:10:31,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-03-15 14:10:31,957 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:10:31,957 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] [2022-03-15 14:10:31,957 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-03-15 14:10:31,958 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:10:31,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:10:31,958 INFO L85 PathProgramCache]: Analyzing trace with hash -1143011957, now seen corresponding path program 9 times [2022-03-15 14:10:31,958 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:10:31,958 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4267167] [2022-03-15 14:10:31,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:10:31,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:10:31,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:10:31,996 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:10:31,997 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:10:31,997 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4267167] [2022-03-15 14:10:31,997 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4267167] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 14:10:31,997 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 14:10:31,997 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-15 14:10:31,997 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378306620] [2022-03-15 14:10:31,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-15 14:10:31,997 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-15 14:10:31,997 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:10:31,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-15 14:10:31,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-15 14:10:31,998 INFO L87 Difference]: Start difference. First operand 44887 states and 203623 transitions. Second operand has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:32,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:10:32,722 INFO L93 Difference]: Finished difference Result 56854 states and 258625 transitions. [2022-03-15 14:10:32,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-15 14:10:32,722 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2022-03-15 14:10:32,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:10:32,965 INFO L225 Difference]: With dead ends: 56854 [2022-03-15 14:10:32,969 INFO L226 Difference]: Without dead ends: 56134 [2022-03-15 14:10:32,969 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-15 14:10:32,970 INFO L933 BasicCegarLoop]: 142 mSDtfsCounter, 88 mSDsluCounter, 231 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-15 14:10:32,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [88 Valid, 343 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-15 14:10:33,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56134 states. [2022-03-15 14:10:34,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56134 to 44563. [2022-03-15 14:10:34,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44563 states, 44562 states have (on average 4.535972353125982) internal successors, (202132), 44562 states have internal predecessors, (202132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:34,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44563 states to 44563 states and 202132 transitions. [2022-03-15 14:10:34,666 INFO L78 Accepts]: Start accepts. Automaton has 44563 states and 202132 transitions. Word has length 96 [2022-03-15 14:10:34,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:10:34,667 INFO L470 AbstractCegarLoop]: Abstraction has 44563 states and 202132 transitions. [2022-03-15 14:10:34,667 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.2) internal successors, (96), 5 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:34,667 INFO L276 IsEmpty]: Start isEmpty. Operand 44563 states and 202132 transitions. [2022-03-15 14:10:35,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:10:35,045 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:10:35,045 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] [2022-03-15 14:10:35,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-03-15 14:10:35,046 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:10:35,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:10:35,046 INFO L85 PathProgramCache]: Analyzing trace with hash 669224837, now seen corresponding path program 1 times [2022-03-15 14:10:35,046 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:10:35,046 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911888655] [2022-03-15 14:10:35,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:10:35,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:10:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:10:35,257 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:10:35,258 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:10:35,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911888655] [2022-03-15 14:10:35,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [911888655] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:10:35,258 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143524588] [2022-03-15 14:10:35,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:10:35,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:10:35,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:10:35,272 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:10:35,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-15 14:10:35,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:10:35,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-15 14:10:35,378 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:10:35,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:10:35,818 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:10:36,162 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:10:36,162 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143524588] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:10:36,162 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:10:36,162 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 10 [2022-03-15 14:10:36,162 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281683747] [2022-03-15 14:10:36,162 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:10:36,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-15 14:10:36,163 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:10:36,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-15 14:10:36,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-15 14:10:36,165 INFO L87 Difference]: Start difference. First operand 44563 states and 202132 transitions. Second operand has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:38,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:10:38,758 INFO L93 Difference]: Finished difference Result 216024 states and 976955 transitions. [2022-03-15 14:10:38,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-15 14:10:38,758 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 states have internal predecessors, (188), 0 states have call successors, (0), 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 101 [2022-03-15 14:10:38,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:10:40,372 INFO L225 Difference]: With dead ends: 216024 [2022-03-15 14:10:40,372 INFO L226 Difference]: Without dead ends: 208605 [2022-03-15 14:10:40,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 196 SyntacticMatches, 6 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:10:40,372 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 301 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 1559 SdHoareTripleChecker+Invalid, 314 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 14:10:40,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [301 Valid, 1559 Invalid, 314 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 14:10:40,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208605 states. [2022-03-15 14:10:47,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208605 to 182384. [2022-03-15 14:10:47,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182384 states, 182383 states have (on average 4.5979395009403285) internal successors, (838586), 182383 states have internal predecessors, (838586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:49,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182384 states to 182384 states and 838586 transitions. [2022-03-15 14:10:49,137 INFO L78 Accepts]: Start accepts. Automaton has 182384 states and 838586 transitions. Word has length 101 [2022-03-15 14:10:49,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:10:49,138 INFO L470 AbstractCegarLoop]: Abstraction has 182384 states and 838586 transitions. [2022-03-15 14:10:49,138 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 18.8) internal successors, (188), 10 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:49,138 INFO L276 IsEmpty]: Start isEmpty. Operand 182384 states and 838586 transitions. [2022-03-15 14:10:50,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-03-15 14:10:50,259 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:10:50,259 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] [2022-03-15 14:10:50,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-15 14:10:50,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2022-03-15 14:10:50,465 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:10:50,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:10:50,465 INFO L85 PathProgramCache]: Analyzing trace with hash 1185760927, now seen corresponding path program 2 times [2022-03-15 14:10:50,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:10:50,466 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266167847] [2022-03-15 14:10:50,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:10:50,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:10:50,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:10:50,568 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:10:50,568 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:10:50,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266167847] [2022-03-15 14:10:50,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266167847] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:10:50,568 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805592704] [2022-03-15 14:10:50,568 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-15 14:10:50,569 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:10:50,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:10:50,576 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:10:50,580 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-15 14:10:50,672 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-15 14:10:50,672 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:10:50,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-15 14:10:50,675 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:10:51,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 14:10:51,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:10:51,469 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:10:51,469 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805592704] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:10:51,470 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:10:51,470 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 12 [2022-03-15 14:10:51,470 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269610901] [2022-03-15 14:10:51,470 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:10:51,470 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 14:10:51,470 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:10:51,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 14:10:51,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-03-15 14:10:51,471 INFO L87 Difference]: Start difference. First operand 182384 states and 838586 transitions. Second operand has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:10:58,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:10:58,160 INFO L93 Difference]: Finished difference Result 438427 states and 1998890 transitions. [2022-03-15 14:10:58,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-03-15 14:10:58,161 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 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 101 [2022-03-15 14:10:58,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:11:02,066 INFO L225 Difference]: With dead ends: 438427 [2022-03-15 14:11:02,066 INFO L226 Difference]: Without dead ends: 425167 [2022-03-15 14:11:02,066 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 195 SyntacticMatches, 5 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2022-03-15 14:11:02,067 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 438 mSDsluCounter, 2205 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 2256 SdHoareTripleChecker+Invalid, 469 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-15 14:11:02,067 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [438 Valid, 2256 Invalid, 469 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-15 14:11:03,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425167 states. [2022-03-15 14:11:15,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425167 to 232114. [2022-03-15 14:11:16,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232114 states, 232113 states have (on average 4.6060410231223585) internal successors, (1069122), 232113 states have internal predecessors, (1069122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:18,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232114 states to 232114 states and 1069122 transitions. [2022-03-15 14:11:18,517 INFO L78 Accepts]: Start accepts. Automaton has 232114 states and 1069122 transitions. Word has length 101 [2022-03-15 14:11:18,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:11:18,518 INFO L470 AbstractCegarLoop]: Abstraction has 232114 states and 1069122 transitions. [2022-03-15 14:11:18,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.666666666666666) internal successors, (188), 12 states have internal predecessors, (188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:18,518 INFO L276 IsEmpty]: Start isEmpty. Operand 232114 states and 1069122 transitions. [2022-03-15 14:11:20,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-03-15 14:11:20,081 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:11:20,081 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:11:20,097 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-15 14:11:20,297 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:11:20,298 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:11:20,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:11:20,298 INFO L85 PathProgramCache]: Analyzing trace with hash -241064789, now seen corresponding path program 3 times [2022-03-15 14:11:20,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:11:20,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609898758] [2022-03-15 14:11:20,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:20,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:11:20,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:20,437 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:11:20,438 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:11:20,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609898758] [2022-03-15 14:11:20,438 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609898758] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:11:20,438 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782127125] [2022-03-15 14:11:20,438 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-15 14:11:20,438 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:11:20,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:11:20,456 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:11:20,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-15 14:11:20,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-15 14:11:20,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:11:20,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 14:11:20,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:11:20,897 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:11:20,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:11:21,164 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-15 14:11:21,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782127125] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:11:21,164 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:11:21,165 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-03-15 14:11:21,165 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108129364] [2022-03-15 14:11:21,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:11:21,165 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:11:21,165 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:11:21,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:11:21,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:11:21,166 INFO L87 Difference]: Start difference. First operand 232114 states and 1069122 transitions. Second operand has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:27,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 14:11:27,808 INFO L93 Difference]: Finished difference Result 443406 states and 2039796 transitions. [2022-03-15 14:11:27,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-15 14:11:27,808 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 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 106 [2022-03-15 14:11:27,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 14:11:32,166 INFO L225 Difference]: With dead ends: 443406 [2022-03-15 14:11:32,166 INFO L226 Difference]: Without dead ends: 433839 [2022-03-15 14:11:32,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 207 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=601, Unknown=0, NotChecked=0, Total=756 [2022-03-15 14:11:32,167 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 725 mSDsluCounter, 2338 mSDsCounter, 0 mSdLazyCounter, 790 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-03-15 14:11:32,167 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [725 Valid, 2348 Invalid, 799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 790 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-03-15 14:11:33,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433839 states. [2022-03-15 14:11:45,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433839 to 232750. [2022-03-15 14:11:46,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232750 states, 232749 states have (on average 4.604238901133839) internal successors, (1071632), 232749 states have internal predecessors, (1071632), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:48,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232750 states to 232750 states and 1071632 transitions. [2022-03-15 14:11:48,814 INFO L78 Accepts]: Start accepts. Automaton has 232750 states and 1071632 transitions. Word has length 106 [2022-03-15 14:11:48,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 14:11:48,815 INFO L470 AbstractCegarLoop]: Abstraction has 232750 states and 1071632 transitions. [2022-03-15 14:11:48,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 10.125) internal successors, (162), 16 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 14:11:48,815 INFO L276 IsEmpty]: Start isEmpty. Operand 232750 states and 1071632 transitions. [2022-03-15 14:11:50,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-03-15 14:11:50,551 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 14:11:50,551 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 14:11:50,569 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-15 14:11:50,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2022-03-15 14:11:50,768 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-15 14:11:50,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 14:11:50,769 INFO L85 PathProgramCache]: Analyzing trace with hash -208197391, now seen corresponding path program 4 times [2022-03-15 14:11:50,769 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 14:11:50,769 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859259310] [2022-03-15 14:11:50,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 14:11:50,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 14:11:50,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 14:11:50,882 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:50,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 14:11:50,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859259310] [2022-03-15 14:11:50,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859259310] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-15 14:11:50,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050139100] [2022-03-15 14:11:50,882 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-15 14:11:50,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-15 14:11:50,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 14:11:50,896 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-15 14:11:50,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-15 14:11:51,050 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-15 14:11:51,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-15 14:11:51,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-15 14:11:51,052 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-15 14:11:51,261 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:51,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-15 14:11:51,412 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-15 14:11:51,413 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050139100] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-15 14:11:51,413 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-15 14:11:51,413 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-03-15 14:11:51,413 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667655416] [2022-03-15 14:11:51,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-15 14:11:51,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-15 14:11:51,413 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 14:11:51,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-15 14:11:51,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-03-15 14:11:51,414 INFO L87 Difference]: Start difference. First operand 232750 states and 1071632 transitions. Second operand has 16 states, 16 states have (on average 7.9375) internal successors, (127), 16 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)