/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-44898dd [2022-02-09 00:55:46,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 00:55:46,326 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 00:55:46,351 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 00:55:46,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 00:55:46,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 00:55:46,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 00:55:46,385 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 [2022-02-09 00:55:46,425 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 00:55:46,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 00:55:46,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 00:55:46,426 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 00:55:46,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 00:55:46,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 00:55:46,427 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 00:55:46,427 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 00:55:46,427 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 00:55:46,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 00:55:46,427 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 00:55:46,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 00:55:46,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 00:55:46,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 00:55:46,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 00:55:46,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 00:55:46,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 00:55:46,428 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 00:55:46,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 00:55:46,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 00:55:46,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 00:55:46,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 00:55:46,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 00:55:46,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 00:55:46,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 00:55:46,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 00:55:46,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 00:55:46,428 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 00:55:46,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 00:55:46,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 00:55:46,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 00:55:46,429 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 00:55:46,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 00:55:46,429 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 00:55:46,656 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 00:55:46,682 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 00:55:46,684 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 00:55:46,685 INFO L271 PluginConnector]: Initializing CDTParser... [2022-02-09 00:55:46,685 INFO L275 PluginConnector]: CDTParser initialized [2022-02-09 00:55:46,686 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-counter-determinism.wvr.c [2022-02-09 00:55:46,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dca12a4a5/0d99b7cdae6d48d3b63a030a59dab53d/FLAG01e200ae8 [2022-02-09 00:55:47,119 INFO L306 CDTParser]: Found 1 translation units. [2022-02-09 00:55:47,119 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-counter-determinism.wvr.c [2022-02-09 00:55:47,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dca12a4a5/0d99b7cdae6d48d3b63a030a59dab53d/FLAG01e200ae8 [2022-02-09 00:55:47,551 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dca12a4a5/0d99b7cdae6d48d3b63a030a59dab53d [2022-02-09 00:55:47,553 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 00:55:47,555 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-02-09 00:55:47,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-02-09 00:55:47,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-02-09 00:55:47,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-02-09 00:55:47,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:55:47" (1/1) ... [2022-02-09 00:55:47,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68fbc37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:55:47, skipping insertion in model container [2022-02-09 00:55:47,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.02 12:55:47" (1/1) ... [2022-02-09 00:55:47,584 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-02-09 00:55:47,600 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-02-09 00:55:47,792 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] [2022-02-09 00:55:47,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 00:55:47,831 INFO L203 MainTranslator]: Completed pre-run [2022-02-09 00:55:47,868 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] [2022-02-09 00:55:47,869 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-02-09 00:55:47,889 INFO L208 MainTranslator]: Completed translation [2022-02-09 00:55:47,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:55:47 WrapperNode [2022-02-09 00:55:47,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-02-09 00:55:47,894 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 00:55:47,894 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 00:55:47,894 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 00:55:47,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:55:47" (1/1) ... [2022-02-09 00:55:47,953 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:55:47" (1/1) ... [2022-02-09 00:55:48,018 INFO L137 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 116 [2022-02-09 00:55:48,019 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 00:55:48,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 00:55:48,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 00:55:48,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 00:55:48,027 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:55:47" (1/1) ... [2022-02-09 00:55:48,028 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:55:47" (1/1) ... [2022-02-09 00:55:48,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:55:47" (1/1) ... [2022-02-09 00:55:48,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:55:47" (1/1) ... [2022-02-09 00:55:48,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:55:47" (1/1) ... [2022-02-09 00:55:48,050 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:55:47" (1/1) ... [2022-02-09 00:55:48,052 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:55:47" (1/1) ... [2022-02-09 00:55:48,053 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 00:55:48,054 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 00:55:48,054 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 00:55:48,055 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 00:55:48,073 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:55:47" (1/1) ... [2022-02-09 00:55:48,092 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 00:55:48,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:55:48,134 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) [2022-02-09 00:55:48,169 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 [2022-02-09 00:55:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-02-09 00:55:48,204 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 00:55:48,205 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 00:55:48,205 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 00:55:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 00:55:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-09 00:55:48,206 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-09 00:55:48,206 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-09 00:55:48,208 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-09 00:55:48,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-02-09 00:55:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-02-09 00:55:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-02-09 00:55:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-02-09 00:55:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-02-09 00:55:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 00:55:48,211 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 00:55:48,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-02-09 00:55:48,212 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-02-09 00:55:48,213 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 00:55:48,309 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 00:55:48,312 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 00:55:48,576 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 00:55:48,654 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 00:55:48,655 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-02-09 00:55:48,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:55:48 BoogieIcfgContainer [2022-02-09 00:55:48,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 00:55:48,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 00:55:48,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 00:55:48,673 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 00:55:48,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.02 12:55:47" (1/3) ... [2022-02-09 00:55:48,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740cb5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:55:48, skipping insertion in model container [2022-02-09 00:55:48,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.02 12:55:47" (2/3) ... [2022-02-09 00:55:48,675 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@740cb5ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 12:55:48, skipping insertion in model container [2022-02-09 00:55:48,675 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 12:55:48" (3/3) ... [2022-02-09 00:55:48,676 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-counter-determinism.wvr.c [2022-02-09 00:55:48,682 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 00:55:48,682 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 00:55:48,682 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 00:55:48,682 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 00:55:48,760 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,761 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,761 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,762 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,762 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,762 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,762 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,763 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,763 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,763 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,763 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,763 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,764 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,764 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,764 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,764 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,764 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,764 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,764 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,765 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,765 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,765 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,765 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,765 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,766 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,767 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,767 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,767 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,767 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,767 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,768 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,768 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,768 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,770 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,771 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,771 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,771 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,771 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,771 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,772 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,772 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,772 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,773 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,773 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,773 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,773 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,774 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,774 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,774 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,774 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,775 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,775 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,775 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,776 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,776 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,776 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,776 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,776 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,777 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,777 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,777 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,777 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,777 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,780 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,780 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,780 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,781 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,781 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,781 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,782 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,783 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,783 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,783 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,783 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,783 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,784 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,784 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,784 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,785 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,785 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,786 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,788 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,790 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,790 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,790 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,790 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,790 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,790 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,790 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,790 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,790 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,793 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,794 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork0_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,794 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,794 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,794 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork0_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,795 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,795 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,796 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,796 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,796 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,796 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,796 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,796 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,796 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,797 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-09 00:55:48,809 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-09 00:55:48,847 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-09 00:55:48,855 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 [2022-02-09 00:55:48,855 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-09 00:55:48,869 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 128 places, 124 transitions, 280 flow [2022-02-09 00:55:50,058 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) [2022-02-09 00:55:50,151 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) [2022-02-09 00:55:50,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-02-09 00:55:50,504 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:55:50,505 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:55:50,506 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)] === [2022-02-09 00:55:50,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:55:50,510 INFO L85 PathProgramCache]: Analyzing trace with hash -1048587059, now seen corresponding path program 1 times [2022-02-09 00:55:50,530 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:55:50,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502763906] [2022-02-09 00:55:50,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:55:50,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:55:50,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:55:50,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:55:50,838 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:55:50,838 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502763906] [2022-02-09 00:55:50,839 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502763906] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:55:50,839 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:55:50,839 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-09 00:55:50,840 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514793617] [2022-02-09 00:55:50,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:55:50,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-02-09 00:55:50,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:55:50,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-02-09 00:55:50,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-02-09 00:55:50,965 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) [2022-02-09 00:55:51,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:55:51,984 INFO L93 Difference]: Finished difference Result 33651 states and 153288 transitions. [2022-02-09 00:55:51,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 00:55:51,990 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 [2022-02-09 00:55:51,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:55:52,516 INFO L225 Difference]: With dead ends: 33651 [2022-02-09 00:55:52,516 INFO L226 Difference]: Without dead ends: 33650 [2022-02-09 00:55:52,519 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 [2022-02-09 00:55:52,521 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:55:52,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:55:52,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33650 states. [2022-02-09 00:55:54,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33650 to 33650. [2022-02-09 00:55:54,148 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) [2022-02-09 00:55:54,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33650 states to 33650 states and 153287 transitions. [2022-02-09 00:55:54,575 INFO L78 Accepts]: Start accepts. Automaton has 33650 states and 153287 transitions. Word has length 81 [2022-02-09 00:55:54,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:55:54,576 INFO L470 AbstractCegarLoop]: Abstraction has 33650 states and 153287 transitions. [2022-02-09 00:55:54,585 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) [2022-02-09 00:55:54,586 INFO L276 IsEmpty]: Start isEmpty. Operand 33650 states and 153287 transitions. [2022-02-09 00:55:54,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2022-02-09 00:55:54,939 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:55:54,939 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:55:54,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 00:55:54,940 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)] === [2022-02-09 00:55:54,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:55:54,942 INFO L85 PathProgramCache]: Analyzing trace with hash 618218383, now seen corresponding path program 1 times [2022-02-09 00:55:54,942 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:55:54,942 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072541360] [2022-02-09 00:55:54,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:55:54,943 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:55:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:55:55,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:55:55,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:55:55,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072541360] [2022-02-09 00:55:55,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072541360] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:55:55,133 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:55:55,134 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:55:55,134 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167724078] [2022-02-09 00:55:55,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:55:55,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:55:55,135 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:55:55,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:55:55,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:55:55,136 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) [2022-02-09 00:55:55,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:55:55,951 INFO L93 Difference]: Finished difference Result 51344 states and 228410 transitions. [2022-02-09 00:55:55,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:55:55,952 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 [2022-02-09 00:55:55,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:55:56,343 INFO L225 Difference]: With dead ends: 51344 [2022-02-09 00:55:56,343 INFO L226 Difference]: Without dead ends: 47756 [2022-02-09 00:55:56,346 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 [2022-02-09 00:55:56,348 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, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:55:56,348 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 440 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:55:56,469 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47756 states. [2022-02-09 00:55:58,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47756 to 40946. [2022-02-09 00:55:58,371 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) [2022-02-09 00:55:58,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40946 states to 40946 states and 184690 transitions. [2022-02-09 00:55:58,881 INFO L78 Accepts]: Start accepts. Automaton has 40946 states and 184690 transitions. Word has length 81 [2022-02-09 00:55:58,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:55:58,881 INFO L470 AbstractCegarLoop]: Abstraction has 40946 states and 184690 transitions. [2022-02-09 00:55:58,882 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) [2022-02-09 00:55:58,882 INFO L276 IsEmpty]: Start isEmpty. Operand 40946 states and 184690 transitions. [2022-02-09 00:55:59,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:55:59,094 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:55:59,094 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:55:59,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-09 00:55:59,094 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)] === [2022-02-09 00:55:59,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:55:59,095 INFO L85 PathProgramCache]: Analyzing trace with hash -33109153, now seen corresponding path program 1 times [2022-02-09 00:55:59,095 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:55:59,095 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1570016740] [2022-02-09 00:55:59,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:55:59,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:55:59,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:55:59,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:55:59,158 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:55:59,158 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1570016740] [2022-02-09 00:55:59,158 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1570016740] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:55:59,158 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:55:59,158 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:55:59,158 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679737745] [2022-02-09 00:55:59,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:55:59,159 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:55:59,159 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:55:59,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:55:59,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:55:59,160 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) [2022-02-09 00:55:59,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:55:59,870 INFO L93 Difference]: Finished difference Result 54404 states and 243172 transitions. [2022-02-09 00:55:59,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:55:59,870 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 [2022-02-09 00:55:59,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:56:00,509 INFO L225 Difference]: With dead ends: 54404 [2022-02-09 00:56:00,509 INFO L226 Difference]: Without dead ends: 53180 [2022-02-09 00:56:00,514 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 [2022-02-09 00:56:00,514 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 159 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-02-09 00:56:00,515 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] [2022-02-09 00:56:00,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53180 states. [2022-02-09 00:56:02,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53180 to 40280. [2022-02-09 00:56:02,393 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) [2022-02-09 00:56:02,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40280 states to 40280 states and 182104 transitions. [2022-02-09 00:56:02,828 INFO L78 Accepts]: Start accepts. Automaton has 40280 states and 182104 transitions. Word has length 86 [2022-02-09 00:56:02,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:56:02,846 INFO L470 AbstractCegarLoop]: Abstraction has 40280 states and 182104 transitions. [2022-02-09 00:56:02,846 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) [2022-02-09 00:56:02,847 INFO L276 IsEmpty]: Start isEmpty. Operand 40280 states and 182104 transitions. [2022-02-09 00:56:03,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:56:03,023 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:56:03,023 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:56:03,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-09 00:56:03,024 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)] === [2022-02-09 00:56:03,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:56:03,025 INFO L85 PathProgramCache]: Analyzing trace with hash -1556135173, now seen corresponding path program 1 times [2022-02-09 00:56:03,025 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:56:03,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876054792] [2022-02-09 00:56:03,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:56:03,028 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:56:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:56:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:56:03,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:56:03,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876054792] [2022-02-09 00:56:03,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876054792] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:56:03,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880732630] [2022-02-09 00:56:03,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:56:03,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:56:03,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:56:03,134 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) [2022-02-09 00:56:03,136 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-02-09 00:56:03,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:56:03,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 00:56:03,261 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:56:03,472 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:56:03,472 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:56:03,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:56:03,659 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880732630] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:56:03,659 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:56:03,659 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-02-09 00:56:03,659 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698228231] [2022-02-09 00:56:03,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:56:03,662 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-09 00:56:03,662 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:56:03,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-09 00:56:03,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-09 00:56:03,663 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) [2022-02-09 00:56:04,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:56:04,816 INFO L93 Difference]: Finished difference Result 70244 states and 317212 transitions. [2022-02-09 00:56:04,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:56:04,816 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 [2022-02-09 00:56:04,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:56:05,754 INFO L225 Difference]: With dead ends: 70244 [2022-02-09 00:56:05,755 INFO L226 Difference]: Without dead ends: 70244 [2022-02-09 00:56:05,755 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 [2022-02-09 00:56:05,758 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 [2022-02-09 00:56:05,759 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] [2022-02-09 00:56:05,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70244 states. [2022-02-09 00:56:07,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70244 to 43574. [2022-02-09 00:56:07,812 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) [2022-02-09 00:56:08,371 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43574 states to 43574 states and 197305 transitions. [2022-02-09 00:56:08,372 INFO L78 Accepts]: Start accepts. Automaton has 43574 states and 197305 transitions. Word has length 86 [2022-02-09 00:56:08,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:56:08,373 INFO L470 AbstractCegarLoop]: Abstraction has 43574 states and 197305 transitions. [2022-02-09 00:56:08,373 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) [2022-02-09 00:56:08,373 INFO L276 IsEmpty]: Start isEmpty. Operand 43574 states and 197305 transitions. [2022-02-09 00:56:08,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:56:08,534 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:56:08,535 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] [2022-02-09 00:56:08,556 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-02-09 00:56:08,737 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 [2022-02-09 00:56:08,738 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)] === [2022-02-09 00:56:08,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:56:08,740 INFO L85 PathProgramCache]: Analyzing trace with hash 818687697, now seen corresponding path program 2 times [2022-02-09 00:56:08,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:56:08,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415386280] [2022-02-09 00:56:08,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:56:08,741 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:56:08,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:56:08,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:56:08,828 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:56:08,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415386280] [2022-02-09 00:56:08,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415386280] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:56:08,828 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:56:08,828 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:56:08,829 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969388765] [2022-02-09 00:56:08,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:56:08,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:56:08,829 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:56:08,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:56:08,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:56:08,830 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) [2022-02-09 00:56:09,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:56:09,929 INFO L93 Difference]: Finished difference Result 78128 states and 347527 transitions. [2022-02-09 00:56:09,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:56:09,930 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 [2022-02-09 00:56:09,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:56:10,888 INFO L225 Difference]: With dead ends: 78128 [2022-02-09 00:56:10,888 INFO L226 Difference]: Without dead ends: 77030 [2022-02-09 00:56:10,888 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 [2022-02-09 00:56:10,890 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 [2022-02-09 00:56:10,890 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] [2022-02-09 00:56:11,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77030 states. [2022-02-09 00:56:13,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77030 to 43754. [2022-02-09 00:56:13,610 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) [2022-02-09 00:56:13,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43754 states to 43754 states and 198079 transitions. [2022-02-09 00:56:13,864 INFO L78 Accepts]: Start accepts. Automaton has 43754 states and 198079 transitions. Word has length 86 [2022-02-09 00:56:13,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:56:13,864 INFO L470 AbstractCegarLoop]: Abstraction has 43754 states and 198079 transitions. [2022-02-09 00:56:13,864 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) [2022-02-09 00:56:13,864 INFO L276 IsEmpty]: Start isEmpty. Operand 43754 states and 198079 transitions. [2022-02-09 00:56:13,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:56:13,991 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:56:13,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:56:13,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-09 00:56:13,991 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)] === [2022-02-09 00:56:13,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:56:13,991 INFO L85 PathProgramCache]: Analyzing trace with hash -691215523, now seen corresponding path program 2 times [2022-02-09 00:56:13,992 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:56:13,992 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673494008] [2022-02-09 00:56:13,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:56:13,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:56:14,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:56:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:56:14,039 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:56:14,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [673494008] [2022-02-09 00:56:14,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [673494008] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:56:14,040 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:56:14,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:56:14,040 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374051056] [2022-02-09 00:56:14,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:56:14,040 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:56:14,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:56:14,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:56:14,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:56:14,041 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) [2022-02-09 00:56:15,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:56:15,170 INFO L93 Difference]: Finished difference Result 62162 states and 280021 transitions. [2022-02-09 00:56:15,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 00:56:15,170 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 [2022-02-09 00:56:15,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:56:16,215 INFO L225 Difference]: With dead ends: 62162 [2022-02-09 00:56:16,216 INFO L226 Difference]: Without dead ends: 62162 [2022-02-09 00:56:16,216 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 [2022-02-09 00:56:16,217 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 125 mSDsluCounter, 256 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:56:16,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [125 Valid, 405 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 103 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:56:16,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62162 states. [2022-02-09 00:56:18,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62162 to 45260. [2022-02-09 00:56:18,397 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) [2022-02-09 00:56:18,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45260 states to 45260 states and 204983 transitions. [2022-02-09 00:56:18,712 INFO L78 Accepts]: Start accepts. Automaton has 45260 states and 204983 transitions. Word has length 86 [2022-02-09 00:56:18,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:56:18,712 INFO L470 AbstractCegarLoop]: Abstraction has 45260 states and 204983 transitions. [2022-02-09 00:56:18,713 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) [2022-02-09 00:56:18,713 INFO L276 IsEmpty]: Start isEmpty. Operand 45260 states and 204983 transitions. [2022-02-09 00:56:18,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:56:18,894 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:56:18,894 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:56:18,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-02-09 00:56:18,894 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)] === [2022-02-09 00:56:18,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:56:18,895 INFO L85 PathProgramCache]: Analyzing trace with hash 538899771, now seen corresponding path program 3 times [2022-02-09 00:56:18,895 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:56:18,896 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931069324] [2022-02-09 00:56:18,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:56:18,896 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:56:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:56:19,016 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:56:19,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:56:19,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931069324] [2022-02-09 00:56:19,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931069324] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:56:19,017 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:56:19,017 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:56:19,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263246416] [2022-02-09 00:56:19,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:56:19,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:56:19,018 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:56:19,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:56:19,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:56:19,018 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) [2022-02-09 00:56:20,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:56:20,590 INFO L93 Difference]: Finished difference Result 75338 states and 340393 transitions. [2022-02-09 00:56:20,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:56:20,590 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 [2022-02-09 00:56:20,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:56:21,417 INFO L225 Difference]: With dead ends: 75338 [2022-02-09 00:56:21,418 INFO L226 Difference]: Without dead ends: 75338 [2022-02-09 00:56:21,418 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 [2022-02-09 00:56:21,418 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 201 mSDsluCounter, 336 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s 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, 0.5s IncrementalHoareTripleChecker+Time [2022-02-09 00:56:21,419 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [201 Valid, 466 Invalid, 146 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-02-09 00:56:21,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75338 states. [2022-02-09 00:56:23,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75338 to 44324. [2022-02-09 00:56:23,797 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) [2022-02-09 00:56:24,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44324 states to 44324 states and 200699 transitions. [2022-02-09 00:56:24,380 INFO L78 Accepts]: Start accepts. Automaton has 44324 states and 200699 transitions. Word has length 86 [2022-02-09 00:56:24,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:56:24,380 INFO L470 AbstractCegarLoop]: Abstraction has 44324 states and 200699 transitions. [2022-02-09 00:56:24,381 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) [2022-02-09 00:56:24,381 INFO L276 IsEmpty]: Start isEmpty. Operand 44324 states and 200699 transitions. [2022-02-09 00:56:24,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:56:24,722 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:56:24,722 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:56:24,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-02-09 00:56:24,723 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)] === [2022-02-09 00:56:24,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:56:24,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1869302141, now seen corresponding path program 3 times [2022-02-09 00:56:24,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:56:24,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747709243] [2022-02-09 00:56:24,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:56:24,724 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:56:24,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:56:24,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:56:24,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:56:24,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747709243] [2022-02-09 00:56:24,786 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747709243] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:56:24,786 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:56:24,786 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:56:24,787 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221406923] [2022-02-09 00:56:24,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:56:24,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:56:24,787 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:56:24,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:56:24,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:56:24,788 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) [2022-02-09 00:56:26,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:56:26,470 INFO L93 Difference]: Finished difference Result 110492 states and 494187 transitions. [2022-02-09 00:56:26,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:56:26,471 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 [2022-02-09 00:56:26,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:56:27,669 INFO L225 Difference]: With dead ends: 110492 [2022-02-09 00:56:27,670 INFO L226 Difference]: Without dead ends: 108854 [2022-02-09 00:56:27,670 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 [2022-02-09 00:56:27,671 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 [2022-02-09 00:56:27,671 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] [2022-02-09 00:56:27,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108854 states. [2022-02-09 00:56:30,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108854 to 50864. [2022-02-09 00:56:30,920 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) [2022-02-09 00:56:31,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50864 states to 50864 states and 232203 transitions. [2022-02-09 00:56:31,473 INFO L78 Accepts]: Start accepts. Automaton has 50864 states and 232203 transitions. Word has length 86 [2022-02-09 00:56:31,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:56:31,474 INFO L470 AbstractCegarLoop]: Abstraction has 50864 states and 232203 transitions. [2022-02-09 00:56:31,474 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) [2022-02-09 00:56:31,474 INFO L276 IsEmpty]: Start isEmpty. Operand 50864 states and 232203 transitions. [2022-02-09 00:56:31,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:56:31,659 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:56:31,659 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:56:31,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-02-09 00:56:31,659 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)] === [2022-02-09 00:56:31,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:56:31,660 INFO L85 PathProgramCache]: Analyzing trace with hash 926791667, now seen corresponding path program 4 times [2022-02-09 00:56:31,660 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:56:31,660 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3129] [2022-02-09 00:56:31,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:56:31,662 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:56:31,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:56:31,710 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:56:31,710 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:56:31,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3129] [2022-02-09 00:56:31,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3129] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:56:31,710 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:56:31,710 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:56:31,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158684836] [2022-02-09 00:56:31,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:56:31,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:56:31,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:56:31,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:56:31,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:56:31,711 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) [2022-02-09 00:56:33,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:56:33,185 INFO L93 Difference]: Finished difference Result 98039 states and 439870 transitions. [2022-02-09 00:56:33,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 00:56:33,185 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 [2022-02-09 00:56:33,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:56:34,114 INFO L225 Difference]: With dead ends: 98039 [2022-02-09 00:56:34,114 INFO L226 Difference]: Without dead ends: 96473 [2022-02-09 00:56:34,114 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 [2022-02-09 00:56:34,116 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 [2022-02-09 00:56:34,117 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] [2022-02-09 00:56:34,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96473 states. [2022-02-09 00:56:37,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96473 to 52970. [2022-02-09 00:56:37,364 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) [2022-02-09 00:56:38,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52970 states to 52970 states and 240918 transitions. [2022-02-09 00:56:38,029 INFO L78 Accepts]: Start accepts. Automaton has 52970 states and 240918 transitions. Word has length 86 [2022-02-09 00:56:38,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:56:38,030 INFO L470 AbstractCegarLoop]: Abstraction has 52970 states and 240918 transitions. [2022-02-09 00:56:38,030 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) [2022-02-09 00:56:38,030 INFO L276 IsEmpty]: Start isEmpty. Operand 52970 states and 240918 transitions. [2022-02-09 00:56:38,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:56:38,214 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:56:38,214 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:56:38,215 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-02-09 00:56:38,216 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)] === [2022-02-09 00:56:38,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:56:38,217 INFO L85 PathProgramCache]: Analyzing trace with hash 478926261, now seen corresponding path program 5 times [2022-02-09 00:56:38,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:56:38,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372342631] [2022-02-09 00:56:38,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:56:38,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:56:38,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:56:38,261 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:56:38,261 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:56:38,261 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372342631] [2022-02-09 00:56:38,261 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [372342631] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:56:38,262 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:56:38,262 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:56:38,262 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912630363] [2022-02-09 00:56:38,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:56:38,262 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:56:38,262 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:56:38,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:56:38,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:56:38,263 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) [2022-02-09 00:56:39,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:56:39,491 INFO L93 Difference]: Finished difference Result 85505 states and 383511 transitions. [2022-02-09 00:56:39,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:56:39,491 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 [2022-02-09 00:56:39,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:56:40,366 INFO L225 Difference]: With dead ends: 85505 [2022-02-09 00:56:40,366 INFO L226 Difference]: Without dead ends: 82607 [2022-02-09 00:56:40,366 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 [2022-02-09 00:56:40,368 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 [2022-02-09 00:56:40,369 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] [2022-02-09 00:56:40,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82607 states. [2022-02-09 00:56:42,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82607 to 52790. [2022-02-09 00:56:42,610 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) [2022-02-09 00:56:42,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52790 states to 52790 states and 239634 transitions. [2022-02-09 00:56:42,877 INFO L78 Accepts]: Start accepts. Automaton has 52790 states and 239634 transitions. Word has length 86 [2022-02-09 00:56:42,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:56:42,878 INFO L470 AbstractCegarLoop]: Abstraction has 52790 states and 239634 transitions. [2022-02-09 00:56:42,878 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) [2022-02-09 00:56:42,878 INFO L276 IsEmpty]: Start isEmpty. Operand 52790 states and 239634 transitions. [2022-02-09 00:56:43,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:56:43,402 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:56:43,407 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:56:43,407 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-02-09 00:56:43,408 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)] === [2022-02-09 00:56:43,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:56:43,408 INFO L85 PathProgramCache]: Analyzing trace with hash 1260315515, now seen corresponding path program 6 times [2022-02-09 00:56:43,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:56:43,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677511260] [2022-02-09 00:56:43,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:56:43,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:56:43,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:56:43,485 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:56:43,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:56:43,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677511260] [2022-02-09 00:56:43,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677511260] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:56:43,485 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:56:43,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:56:43,486 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411992907] [2022-02-09 00:56:43,486 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:56:43,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:56:43,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:56:43,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:56:43,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:56:43,487 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) [2022-02-09 00:56:44,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:56:44,702 INFO L93 Difference]: Finished difference Result 100238 states and 453654 transitions. [2022-02-09 00:56:44,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:56:44,703 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 [2022-02-09 00:56:44,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:56:45,731 INFO L225 Difference]: With dead ends: 100238 [2022-02-09 00:56:45,732 INFO L226 Difference]: Without dead ends: 98600 [2022-02-09 00:56:45,732 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 [2022-02-09 00:56:45,732 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 210 mSDsluCounter, 331 mSDsCounter, 0 mSdLazyCounter, 150 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:56:45,732 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [210 Valid, 466 Invalid, 151 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 150 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:56:45,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98600 states. [2022-02-09 00:56:48,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98600 to 54893. [2022-02-09 00:56:48,491 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) [2022-02-09 00:56:49,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54893 states to 54893 states and 249227 transitions. [2022-02-09 00:56:49,121 INFO L78 Accepts]: Start accepts. Automaton has 54893 states and 249227 transitions. Word has length 86 [2022-02-09 00:56:49,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:56:49,122 INFO L470 AbstractCegarLoop]: Abstraction has 54893 states and 249227 transitions. [2022-02-09 00:56:49,122 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) [2022-02-09 00:56:49,122 INFO L276 IsEmpty]: Start isEmpty. Operand 54893 states and 249227 transitions. [2022-02-09 00:56:49,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:56:49,314 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:56:49,314 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:56:49,314 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-09 00:56:49,315 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)] === [2022-02-09 00:56:49,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:56:49,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1792750199, now seen corresponding path program 7 times [2022-02-09 00:56:49,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:56:49,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473390616] [2022-02-09 00:56:49,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:56:49,315 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:56:49,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:56:49,369 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:56:49,369 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:56:49,369 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473390616] [2022-02-09 00:56:49,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473390616] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:56:49,369 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:56:49,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:56:49,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121387756] [2022-02-09 00:56:49,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:56:49,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:56:49,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:56:49,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:56:49,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:56:49,370 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) [2022-02-09 00:56:50,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:56:50,538 INFO L93 Difference]: Finished difference Result 77150 states and 348494 transitions. [2022-02-09 00:56:50,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:56:50,539 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 [2022-02-09 00:56:50,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:56:50,973 INFO L225 Difference]: With dead ends: 77150 [2022-02-09 00:56:50,974 INFO L226 Difference]: Without dead ends: 77150 [2022-02-09 00:56:50,974 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 [2022-02-09 00:56:50,974 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 [2022-02-09 00:56:50,974 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] [2022-02-09 00:56:51,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77150 states. [2022-02-09 00:56:53,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77150 to 56009. [2022-02-09 00:56:53,346 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) [2022-02-09 00:56:53,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56009 states to 56009 states and 254520 transitions. [2022-02-09 00:56:53,896 INFO L78 Accepts]: Start accepts. Automaton has 56009 states and 254520 transitions. Word has length 86 [2022-02-09 00:56:53,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:56:53,897 INFO L470 AbstractCegarLoop]: Abstraction has 56009 states and 254520 transitions. [2022-02-09 00:56:53,897 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) [2022-02-09 00:56:53,897 INFO L276 IsEmpty]: Start isEmpty. Operand 56009 states and 254520 transitions. [2022-02-09 00:56:54,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:56:54,076 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:56:54,076 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:56:54,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-02-09 00:56:54,076 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)] === [2022-02-09 00:56:54,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:56:54,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1571446077, now seen corresponding path program 4 times [2022-02-09 00:56:54,077 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:56:54,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [497287912] [2022-02-09 00:56:54,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:56:54,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:56:54,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:56:54,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:56:54,117 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:56:54,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [497287912] [2022-02-09 00:56:54,118 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [497287912] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:56:54,118 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:56:54,118 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:56:54,118 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831978867] [2022-02-09 00:56:54,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:56:54,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:56:54,118 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:56:54,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:56:54,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:56:54,119 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) [2022-02-09 00:56:55,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:56:55,529 INFO L93 Difference]: Finished difference Result 93608 states and 421800 transitions. [2022-02-09 00:56:55,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 00:56:55,529 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 [2022-02-09 00:56:55,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:56:56,103 INFO L225 Difference]: With dead ends: 93608 [2022-02-09 00:56:56,104 INFO L226 Difference]: Without dead ends: 93608 [2022-02-09 00:56:56,104 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 [2022-02-09 00:56:56,105 INFO L933 BasicCegarLoop]: 167 mSDtfsCounter, 151 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 103 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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 [2022-02-09 00:56:56,105 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] [2022-02-09 00:56:56,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93608 states. [2022-02-09 00:56:58,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93608 to 58043. [2022-02-09 00:56:58,501 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) [2022-02-09 00:56:59,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58043 states to 58043 states and 263394 transitions. [2022-02-09 00:56:59,036 INFO L78 Accepts]: Start accepts. Automaton has 58043 states and 263394 transitions. Word has length 86 [2022-02-09 00:56:59,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:56:59,036 INFO L470 AbstractCegarLoop]: Abstraction has 58043 states and 263394 transitions. [2022-02-09 00:56:59,036 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) [2022-02-09 00:56:59,045 INFO L276 IsEmpty]: Start isEmpty. Operand 58043 states and 263394 transitions. [2022-02-09 00:56:59,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:56:59,235 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:56:59,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:56:59,235 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-02-09 00:56:59,235 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)] === [2022-02-09 00:56:59,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:56:59,236 INFO L85 PathProgramCache]: Analyzing trace with hash -341330783, now seen corresponding path program 5 times [2022-02-09 00:56:59,236 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:56:59,236 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880619998] [2022-02-09 00:56:59,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:56:59,251 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:56:59,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:56:59,313 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:56:59,313 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:56:59,313 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880619998] [2022-02-09 00:56:59,314 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880619998] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:56:59,314 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:56:59,314 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:56:59,314 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323781463] [2022-02-09 00:56:59,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:56:59,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:56:59,315 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:56:59,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:56:59,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:56:59,315 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) [2022-02-09 00:57:00,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:00,765 INFO L93 Difference]: Finished difference Result 91238 states and 407423 transitions. [2022-02-09 00:57:00,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:57:00,765 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 [2022-02-09 00:57:00,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:57:01,294 INFO L225 Difference]: With dead ends: 91238 [2022-02-09 00:57:01,294 INFO L226 Difference]: Without dead ends: 89780 [2022-02-09 00:57:01,295 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 [2022-02-09 00:57:01,295 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 [2022-02-09 00:57:01,295 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] [2022-02-09 00:57:01,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89780 states. [2022-02-09 00:57:03,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89780 to 53606. [2022-02-09 00:57:03,601 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) [2022-02-09 00:57:04,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53606 states to 53606 states and 242475 transitions. [2022-02-09 00:57:04,391 INFO L78 Accepts]: Start accepts. Automaton has 53606 states and 242475 transitions. Word has length 86 [2022-02-09 00:57:04,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:57:04,391 INFO L470 AbstractCegarLoop]: Abstraction has 53606 states and 242475 transitions. [2022-02-09 00:57:04,392 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) [2022-02-09 00:57:04,392 INFO L276 IsEmpty]: Start isEmpty. Operand 53606 states and 242475 transitions. [2022-02-09 00:57:04,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:57:04,669 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:57:04,669 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:57:04,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-02-09 00:57:04,669 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)] === [2022-02-09 00:57:04,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:57:04,670 INFO L85 PathProgramCache]: Analyzing trace with hash 1561519303, now seen corresponding path program 6 times [2022-02-09 00:57:04,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:57:04,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281227345] [2022-02-09 00:57:04,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:04,670 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:57:04,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:04,770 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:57:04,771 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:57:04,771 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281227345] [2022-02-09 00:57:04,771 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281227345] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:57:04,771 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:57:04,771 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:57:04,773 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642663378] [2022-02-09 00:57:04,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:57:04,773 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:57:04,773 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:57:04,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:57:04,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:57:04,774 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) [2022-02-09 00:57:06,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:06,128 INFO L93 Difference]: Finished difference Result 82670 states and 369701 transitions. [2022-02-09 00:57:06,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 00:57:06,128 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 [2022-02-09 00:57:06,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:57:06,998 INFO L225 Difference]: With dead ends: 82670 [2022-02-09 00:57:06,998 INFO L226 Difference]: Without dead ends: 81392 [2022-02-09 00:57:07,019 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 [2022-02-09 00:57:07,021 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:57:07,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 411 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:57:07,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81392 states. [2022-02-09 00:57:09,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81392 to 52367. [2022-02-09 00:57:09,903 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) [2022-02-09 00:57:10,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52367 states to 52367 states and 237509 transitions. [2022-02-09 00:57:10,698 INFO L78 Accepts]: Start accepts. Automaton has 52367 states and 237509 transitions. Word has length 86 [2022-02-09 00:57:10,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:57:10,698 INFO L470 AbstractCegarLoop]: Abstraction has 52367 states and 237509 transitions. [2022-02-09 00:57:10,698 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) [2022-02-09 00:57:10,698 INFO L276 IsEmpty]: Start isEmpty. Operand 52367 states and 237509 transitions. [2022-02-09 00:57:10,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:57:10,858 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:57:10,858 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:57:10,868 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-02-09 00:57:10,869 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)] === [2022-02-09 00:57:10,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:57:10,869 INFO L85 PathProgramCache]: Analyzing trace with hash 59267419, now seen corresponding path program 7 times [2022-02-09 00:57:10,869 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:57:10,869 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839153235] [2022-02-09 00:57:10,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:10,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:57:10,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:10,960 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:57:10,961 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:57:10,961 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839153235] [2022-02-09 00:57:10,961 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839153235] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:57:10,961 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:57:10,961 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:57:10,961 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976016421] [2022-02-09 00:57:10,961 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:57:10,961 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:57:10,961 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:57:10,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:57:10,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:57:10,962 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) [2022-02-09 00:57:11,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:11,786 INFO L93 Difference]: Finished difference Result 62549 states and 283434 transitions. [2022-02-09 00:57:11,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:57:11,787 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 [2022-02-09 00:57:11,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:57:12,165 INFO L225 Difference]: With dead ends: 62549 [2022-02-09 00:57:12,165 INFO L226 Difference]: Without dead ends: 61091 [2022-02-09 00:57:12,166 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 [2022-02-09 00:57:12,166 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 [2022-02-09 00:57:12,167 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] [2022-02-09 00:57:12,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61091 states. [2022-02-09 00:57:13,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61091 to 50123. [2022-02-09 00:57:13,941 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) [2022-02-09 00:57:14,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50123 states to 50123 states and 228102 transitions. [2022-02-09 00:57:14,461 INFO L78 Accepts]: Start accepts. Automaton has 50123 states and 228102 transitions. Word has length 86 [2022-02-09 00:57:14,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:57:14,461 INFO L470 AbstractCegarLoop]: Abstraction has 50123 states and 228102 transitions. [2022-02-09 00:57:14,461 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) [2022-02-09 00:57:14,461 INFO L276 IsEmpty]: Start isEmpty. Operand 50123 states and 228102 transitions. [2022-02-09 00:57:14,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:57:14,620 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:57:14,620 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:57:14,620 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-02-09 00:57:14,620 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)] === [2022-02-09 00:57:14,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:57:14,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1526260539, now seen corresponding path program 8 times [2022-02-09 00:57:14,620 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:57:14,621 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529314880] [2022-02-09 00:57:14,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:14,621 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:57:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:14,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:57:14,660 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:57:14,660 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529314880] [2022-02-09 00:57:14,660 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529314880] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:57:14,660 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:57:14,660 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:57:14,660 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940942208] [2022-02-09 00:57:14,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:57:14,660 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:57:14,661 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:57:14,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:57:14,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:57:14,661 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) [2022-02-09 00:57:15,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:15,648 INFO L93 Difference]: Finished difference Result 77939 states and 355218 transitions. [2022-02-09 00:57:15,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:57:15,648 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 [2022-02-09 00:57:15,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:57:16,298 INFO L225 Difference]: With dead ends: 77939 [2022-02-09 00:57:16,298 INFO L226 Difference]: Without dead ends: 77939 [2022-02-09 00:57:16,298 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 [2022-02-09 00:57:16,299 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 [2022-02-09 00:57:16,299 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] [2022-02-09 00:57:16,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77939 states. [2022-02-09 00:57:18,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77939 to 49973. [2022-02-09 00:57:18,301 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) [2022-02-09 00:57:18,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49973 states to 49973 states and 227432 transitions. [2022-02-09 00:57:18,591 INFO L78 Accepts]: Start accepts. Automaton has 49973 states and 227432 transitions. Word has length 86 [2022-02-09 00:57:18,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:57:18,591 INFO L470 AbstractCegarLoop]: Abstraction has 49973 states and 227432 transitions. [2022-02-09 00:57:18,591 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) [2022-02-09 00:57:18,591 INFO L276 IsEmpty]: Start isEmpty. Operand 49973 states and 227432 transitions. [2022-02-09 00:57:18,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:57:18,755 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:57:18,755 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:57:18,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-02-09 00:57:18,755 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)] === [2022-02-09 00:57:18,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:57:18,756 INFO L85 PathProgramCache]: Analyzing trace with hash -1992109229, now seen corresponding path program 9 times [2022-02-09 00:57:18,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:57:18,757 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [407180322] [2022-02-09 00:57:18,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:18,757 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:57:18,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:18,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:57:18,821 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:57:18,821 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [407180322] [2022-02-09 00:57:18,821 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [407180322] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:57:18,821 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:57:18,821 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:57:18,821 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746986488] [2022-02-09 00:57:18,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:57:18,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:57:18,822 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:57:18,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:57:18,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:57:18,822 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) [2022-02-09 00:57:19,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:19,879 INFO L93 Difference]: Finished difference Result 75881 states and 345948 transitions. [2022-02-09 00:57:19,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:57:19,879 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 [2022-02-09 00:57:19,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:57:20,521 INFO L225 Difference]: With dead ends: 75881 [2022-02-09 00:57:20,521 INFO L226 Difference]: Without dead ends: 75881 [2022-02-09 00:57:20,521 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 [2022-02-09 00:57:20,522 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 [2022-02-09 00:57:20,523 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] [2022-02-09 00:57:20,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75881 states. [2022-02-09 00:57:22,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75881 to 49403. [2022-02-09 00:57:22,481 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) [2022-02-09 00:57:22,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49403 states to 49403 states and 224812 transitions. [2022-02-09 00:57:22,715 INFO L78 Accepts]: Start accepts. Automaton has 49403 states and 224812 transitions. Word has length 86 [2022-02-09 00:57:22,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:57:22,715 INFO L470 AbstractCegarLoop]: Abstraction has 49403 states and 224812 transitions. [2022-02-09 00:57:22,715 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) [2022-02-09 00:57:22,715 INFO L276 IsEmpty]: Start isEmpty. Operand 49403 states and 224812 transitions. [2022-02-09 00:57:23,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2022-02-09 00:57:23,192 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:57:23,192 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:57:23,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-02-09 00:57:23,192 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)] === [2022-02-09 00:57:23,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:57:23,193 INFO L85 PathProgramCache]: Analyzing trace with hash -203147259, now seen corresponding path program 10 times [2022-02-09 00:57:23,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:57:23,194 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924732926] [2022-02-09 00:57:23,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:23,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:57:23,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:23,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:57:23,235 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:57:23,235 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924732926] [2022-02-09 00:57:23,235 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924732926] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:57:23,235 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:57:23,235 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:57:23,235 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720241979] [2022-02-09 00:57:23,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:57:23,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:57:23,236 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:57:23,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:57:23,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:57:23,237 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) [2022-02-09 00:57:24,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:24,160 INFO L93 Difference]: Finished difference Result 74441 states and 339204 transitions. [2022-02-09 00:57:24,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 00:57:24,160 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 [2022-02-09 00:57:24,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:57:24,641 INFO L225 Difference]: With dead ends: 74441 [2022-02-09 00:57:24,641 INFO L226 Difference]: Without dead ends: 74441 [2022-02-09 00:57:24,641 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 [2022-02-09 00:57:24,642 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 [2022-02-09 00:57:24,642 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] [2022-02-09 00:57:24,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74441 states. [2022-02-09 00:57:26,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74441 to 45899. [2022-02-09 00:57:26,482 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) [2022-02-09 00:57:26,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45899 states to 45899 states and 208496 transitions. [2022-02-09 00:57:26,691 INFO L78 Accepts]: Start accepts. Automaton has 45899 states and 208496 transitions. Word has length 86 [2022-02-09 00:57:26,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:57:26,691 INFO L470 AbstractCegarLoop]: Abstraction has 45899 states and 208496 transitions. [2022-02-09 00:57:26,691 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) [2022-02-09 00:57:26,691 INFO L276 IsEmpty]: Start isEmpty. Operand 45899 states and 208496 transitions. [2022-02-09 00:57:27,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-09 00:57:27,105 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:57:27,106 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:57:27,106 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-02-09 00:57:27,106 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)] === [2022-02-09 00:57:27,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:57:27,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1593679681, now seen corresponding path program 1 times [2022-02-09 00:57:27,106 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:57:27,106 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711885497] [2022-02-09 00:57:27,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:27,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:57:27,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:27,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:57:27,178 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:57:27,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711885497] [2022-02-09 00:57:27,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711885497] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:57:27,178 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939738552] [2022-02-09 00:57:27,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:27,178 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:57:27,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:57:27,180 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) [2022-02-09 00:57:27,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 00:57:27,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:27,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 00:57:27,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:57:27,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:57:27,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:57:27,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:57:27,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939738552] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:57:27,513 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:57:27,513 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-02-09 00:57:27,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999101363] [2022-02-09 00:57:27,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:57:27,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-09 00:57:27,513 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:57:27,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-09 00:57:27,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-09 00:57:27,514 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) [2022-02-09 00:57:28,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:28,598 INFO L93 Difference]: Finished difference Result 79094 states and 360312 transitions. [2022-02-09 00:57:28,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:57:28,599 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 [2022-02-09 00:57:28,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:57:29,421 INFO L225 Difference]: With dead ends: 79094 [2022-02-09 00:57:29,421 INFO L226 Difference]: Without dead ends: 79094 [2022-02-09 00:57:29,422 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 [2022-02-09 00:57:29,422 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 [2022-02-09 00:57:29,423 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] [2022-02-09 00:57:29,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79094 states. [2022-02-09 00:57:31,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79094 to 44714. [2022-02-09 00:57:31,452 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) [2022-02-09 00:57:31,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44714 states to 44714 states and 203049 transitions. [2022-02-09 00:57:31,667 INFO L78 Accepts]: Start accepts. Automaton has 44714 states and 203049 transitions. Word has length 91 [2022-02-09 00:57:31,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:57:31,667 INFO L470 AbstractCegarLoop]: Abstraction has 44714 states and 203049 transitions. [2022-02-09 00:57:31,667 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) [2022-02-09 00:57:31,667 INFO L276 IsEmpty]: Start isEmpty. Operand 44714 states and 203049 transitions. [2022-02-09 00:57:31,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-09 00:57:31,796 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:57:31,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:57:31,815 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-09 00:57:32,013 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 [2022-02-09 00:57:32,013 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)] === [2022-02-09 00:57:32,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:57:32,032 INFO L85 PathProgramCache]: Analyzing trace with hash -136039099, now seen corresponding path program 2 times [2022-02-09 00:57:32,032 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:57:32,032 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380674537] [2022-02-09 00:57:32,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:32,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:57:32,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:32,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:57:32,073 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:57:32,073 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380674537] [2022-02-09 00:57:32,073 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380674537] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:57:32,073 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:57:32,073 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:57:32,075 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640005576] [2022-02-09 00:57:32,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:57:32,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:57:32,076 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:57:32,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:57:32,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:57:32,076 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) [2022-02-09 00:57:33,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:33,461 INFO L93 Difference]: Finished difference Result 79805 states and 362798 transitions. [2022-02-09 00:57:33,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 00:57:33,461 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 [2022-02-09 00:57:33,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:57:33,916 INFO L225 Difference]: With dead ends: 79805 [2022-02-09 00:57:33,917 INFO L226 Difference]: Without dead ends: 79805 [2022-02-09 00:57:33,917 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 [2022-02-09 00:57:33,917 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, 0.2s IncrementalHoareTripleChecker+Time [2022-02-09 00:57:33,918 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [207 Valid, 681 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 235 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-09 00:57:34,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79805 states. [2022-02-09 00:57:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79805 to 44522. [2022-02-09 00:57:35,795 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) [2022-02-09 00:57:36,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44522 states to 44522 states and 202163 transitions. [2022-02-09 00:57:36,002 INFO L78 Accepts]: Start accepts. Automaton has 44522 states and 202163 transitions. Word has length 91 [2022-02-09 00:57:36,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:57:36,003 INFO L470 AbstractCegarLoop]: Abstraction has 44522 states and 202163 transitions. [2022-02-09 00:57:36,003 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) [2022-02-09 00:57:36,003 INFO L276 IsEmpty]: Start isEmpty. Operand 44522 states and 202163 transitions. [2022-02-09 00:57:36,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-09 00:57:36,413 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:57:36,413 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:57:36,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-02-09 00:57:36,414 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)] === [2022-02-09 00:57:36,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:57:36,414 INFO L85 PathProgramCache]: Analyzing trace with hash 1630178977, now seen corresponding path program 3 times [2022-02-09 00:57:36,414 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:57:36,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75493251] [2022-02-09 00:57:36,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:36,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:57:36,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:36,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:57:36,522 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:57:36,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75493251] [2022-02-09 00:57:36,522 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75493251] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:57:36,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1987950011] [2022-02-09 00:57:36,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 00:57:36,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:57:36,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:57:36,524 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) [2022-02-09 00:57:36,525 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 00:57:36,598 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-02-09 00:57:36,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 00:57:36,599 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 00:57:36,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:57:36,809 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:57:36,809 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:57:36,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:57:36,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1987950011] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:57:36,941 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:57:36,942 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-02-09 00:57:36,942 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585675862] [2022-02-09 00:57:36,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:57:36,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:57:36,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:57:36,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:57:36,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:57:36,943 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) [2022-02-09 00:57:38,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:38,251 INFO L93 Difference]: Finished difference Result 111947 states and 499493 transitions. [2022-02-09 00:57:38,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 00:57:38,252 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 [2022-02-09 00:57:38,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:57:39,141 INFO L225 Difference]: With dead ends: 111947 [2022-02-09 00:57:39,141 INFO L226 Difference]: Without dead ends: 111947 [2022-02-09 00:57:39,141 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 [2022-02-09 00:57:39,142 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 [2022-02-09 00:57:39,142 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] [2022-02-09 00:57:39,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111947 states. [2022-02-09 00:57:41,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111947 to 44906. [2022-02-09 00:57:41,460 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) [2022-02-09 00:57:41,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44906 states to 44906 states and 204322 transitions. [2022-02-09 00:57:41,955 INFO L78 Accepts]: Start accepts. Automaton has 44906 states and 204322 transitions. Word has length 91 [2022-02-09 00:57:41,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:57:41,955 INFO L470 AbstractCegarLoop]: Abstraction has 44906 states and 204322 transitions. [2022-02-09 00:57:41,955 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) [2022-02-09 00:57:41,955 INFO L276 IsEmpty]: Start isEmpty. Operand 44906 states and 204322 transitions. [2022-02-09 00:57:42,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-09 00:57:42,138 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:57:42,138 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:57:42,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-09 00:57:42,355 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 [2022-02-09 00:57:42,356 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)] === [2022-02-09 00:57:42,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:57:42,356 INFO L85 PathProgramCache]: Analyzing trace with hash -2036896451, now seen corresponding path program 4 times [2022-02-09 00:57:42,356 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:57:42,356 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14589990] [2022-02-09 00:57:42,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:42,357 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:57:42,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:42,406 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:57:42,406 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:57:42,406 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14589990] [2022-02-09 00:57:42,406 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14589990] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:57:42,406 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:57:42,407 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:57:42,407 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847652670] [2022-02-09 00:57:42,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:57:42,407 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:57:42,407 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:57:42,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:57:42,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:57:42,407 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) [2022-02-09 00:57:43,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:43,547 INFO L93 Difference]: Finished difference Result 96260 states and 432304 transitions. [2022-02-09 00:57:43,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:57:43,547 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 [2022-02-09 00:57:43,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:57:44,329 INFO L225 Difference]: With dead ends: 96260 [2022-02-09 00:57:44,330 INFO L226 Difference]: Without dead ends: 96260 [2022-02-09 00:57:44,330 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 [2022-02-09 00:57:44,333 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 [2022-02-09 00:57:44,334 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] [2022-02-09 00:57:44,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96260 states. [2022-02-09 00:57:46,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96260 to 43853. [2022-02-09 00:57:46,328 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) [2022-02-09 00:57:46,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43853 states to 43853 states and 198373 transitions. [2022-02-09 00:57:46,527 INFO L78 Accepts]: Start accepts. Automaton has 43853 states and 198373 transitions. Word has length 91 [2022-02-09 00:57:46,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:57:46,528 INFO L470 AbstractCegarLoop]: Abstraction has 43853 states and 198373 transitions. [2022-02-09 00:57:46,528 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) [2022-02-09 00:57:46,528 INFO L276 IsEmpty]: Start isEmpty. Operand 43853 states and 198373 transitions. [2022-02-09 00:57:46,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-09 00:57:46,655 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:57:46,655 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:57:46,656 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-02-09 00:57:46,656 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)] === [2022-02-09 00:57:46,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:57:46,656 INFO L85 PathProgramCache]: Analyzing trace with hash -6129173, now seen corresponding path program 5 times [2022-02-09 00:57:46,656 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:57:46,657 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736836960] [2022-02-09 00:57:46,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:46,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:57:46,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:46,724 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:57:46,724 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:57:46,724 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736836960] [2022-02-09 00:57:46,724 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736836960] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:57:46,724 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:57:46,724 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:57:46,725 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310076186] [2022-02-09 00:57:46,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:57:46,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:57:46,725 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:57:46,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:57:46,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:57:46,725 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) [2022-02-09 00:57:47,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:47,539 INFO L93 Difference]: Finished difference Result 59753 states and 269123 transitions. [2022-02-09 00:57:47,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 00:57:47,539 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 [2022-02-09 00:57:47,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:57:47,811 INFO L225 Difference]: With dead ends: 59753 [2022-02-09 00:57:47,811 INFO L226 Difference]: Without dead ends: 58601 [2022-02-09 00:57:47,811 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 [2022-02-09 00:57:47,811 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 [2022-02-09 00:57:47,812 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] [2022-02-09 00:57:48,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58601 states. [2022-02-09 00:57:49,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58601 to 43823. [2022-02-09 00:57:49,499 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) [2022-02-09 00:57:49,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43823 states to 43823 states and 198209 transitions. [2022-02-09 00:57:49,939 INFO L78 Accepts]: Start accepts. Automaton has 43823 states and 198209 transitions. Word has length 91 [2022-02-09 00:57:49,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:57:49,939 INFO L470 AbstractCegarLoop]: Abstraction has 43823 states and 198209 transitions. [2022-02-09 00:57:49,940 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) [2022-02-09 00:57:49,940 INFO L276 IsEmpty]: Start isEmpty. Operand 43823 states and 198209 transitions. [2022-02-09 00:57:50,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-09 00:57:50,073 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:57:50,073 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:57:50,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-02-09 00:57:50,073 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)] === [2022-02-09 00:57:50,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:57:50,074 INFO L85 PathProgramCache]: Analyzing trace with hash -552359655, now seen corresponding path program 6 times [2022-02-09 00:57:50,074 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:57:50,074 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250921680] [2022-02-09 00:57:50,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:50,074 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:57:50,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:50,157 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:57:50,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:57:50,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250921680] [2022-02-09 00:57:50,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250921680] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:57:50,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [576651399] [2022-02-09 00:57:50,157 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 00:57:50,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:57:50,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:57:50,159 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) [2022-02-09 00:57:50,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 00:57:50,237 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s) [2022-02-09 00:57:50,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 00:57:50,239 INFO L263 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 00:57:50,240 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:57:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:57:50,378 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:57:50,496 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:57:50,496 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [576651399] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:57:50,496 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:57:50,496 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-02-09 00:57:50,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744274375] [2022-02-09 00:57:50,496 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:57:50,497 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 00:57:50,497 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:57:50,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 00:57:50,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-02-09 00:57:50,498 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) [2022-02-09 00:57:51,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:51,617 INFO L93 Difference]: Finished difference Result 86387 states and 384288 transitions. [2022-02-09 00:57:51,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-09 00:57:51,618 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 [2022-02-09 00:57:51,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:57:52,072 INFO L225 Difference]: With dead ends: 86387 [2022-02-09 00:57:52,073 INFO L226 Difference]: Without dead ends: 86387 [2022-02-09 00:57:52,073 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 [2022-02-09 00:57:52,073 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 [2022-02-09 00:57:52,073 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] [2022-02-09 00:57:52,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86387 states. [2022-02-09 00:57:54,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86387 to 43430. [2022-02-09 00:57:54,289 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) [2022-02-09 00:57:54,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43430 states to 43430 states and 196014 transitions. [2022-02-09 00:57:54,510 INFO L78 Accepts]: Start accepts. Automaton has 43430 states and 196014 transitions. Word has length 91 [2022-02-09 00:57:54,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:57:54,511 INFO L470 AbstractCegarLoop]: Abstraction has 43430 states and 196014 transitions. [2022-02-09 00:57:54,511 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) [2022-02-09 00:57:54,511 INFO L276 IsEmpty]: Start isEmpty. Operand 43430 states and 196014 transitions. [2022-02-09 00:57:54,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-09 00:57:54,638 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:57:54,638 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:57:54,658 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 00:57:54,851 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 [2022-02-09 00:57:54,851 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)] === [2022-02-09 00:57:54,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:57:54,852 INFO L85 PathProgramCache]: Analyzing trace with hash -993622783, now seen corresponding path program 7 times [2022-02-09 00:57:54,852 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:57:54,852 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1133180660] [2022-02-09 00:57:54,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:54,852 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:57:54,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:54,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:57:54,903 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:57:54,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1133180660] [2022-02-09 00:57:54,903 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1133180660] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:57:54,903 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:57:54,903 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:57:54,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526345259] [2022-02-09 00:57:54,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:57:54,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:57:54,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:57:54,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:57:54,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:57:54,904 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) [2022-02-09 00:57:55,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:55,721 INFO L93 Difference]: Finished difference Result 74096 states and 329713 transitions. [2022-02-09 00:57:55,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 00:57:55,722 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 [2022-02-09 00:57:55,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:57:56,326 INFO L225 Difference]: With dead ends: 74096 [2022-02-09 00:57:56,327 INFO L226 Difference]: Without dead ends: 72944 [2022-02-09 00:57:56,328 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 [2022-02-09 00:57:56,328 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 133 mSDsluCounter, 380 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-02-09 00:57:56,328 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] [2022-02-09 00:57:56,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72944 states. [2022-02-09 00:57:57,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72944 to 43400. [2022-02-09 00:57:57,922 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) [2022-02-09 00:57:58,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43400 states to 43400 states and 195850 transitions. [2022-02-09 00:57:58,455 INFO L78 Accepts]: Start accepts. Automaton has 43400 states and 195850 transitions. Word has length 91 [2022-02-09 00:57:58,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:57:58,455 INFO L470 AbstractCegarLoop]: Abstraction has 43400 states and 195850 transitions. [2022-02-09 00:57:58,456 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) [2022-02-09 00:57:58,456 INFO L276 IsEmpty]: Start isEmpty. Operand 43400 states and 195850 transitions. [2022-02-09 00:57:58,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-02-09 00:57:58,582 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:57:58,582 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:57:58,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-02-09 00:57:58,582 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)] === [2022-02-09 00:57:58,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:57:58,583 INFO L85 PathProgramCache]: Analyzing trace with hash 1938111767, now seen corresponding path program 8 times [2022-02-09 00:57:58,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:57:58,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373417477] [2022-02-09 00:57:58,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:57:58,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:57:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:57:58,614 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:57:58,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:57:58,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373417477] [2022-02-09 00:57:58,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373417477] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:57:58,614 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:57:58,615 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:57:58,615 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82420598] [2022-02-09 00:57:58,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:57:58,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:57:58,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:57:58,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:57:58,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:57:58,615 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) [2022-02-09 00:57:59,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:57:59,569 INFO L93 Difference]: Finished difference Result 54326 states and 244720 transitions. [2022-02-09 00:57:59,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:57:59,578 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 [2022-02-09 00:57:59,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:58:00,062 INFO L225 Difference]: With dead ends: 54326 [2022-02-09 00:58:00,063 INFO L226 Difference]: Without dead ends: 52022 [2022-02-09 00:58:00,064 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 [2022-02-09 00:58:00,067 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 [2022-02-09 00:58:00,067 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] [2022-02-09 00:58:00,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52022 states. [2022-02-09 00:58:01,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52022 to 40958. [2022-02-09 00:58:01,404 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) [2022-02-09 00:58:01,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40958 states to 40958 states and 185354 transitions. [2022-02-09 00:58:01,826 INFO L78 Accepts]: Start accepts. Automaton has 40958 states and 185354 transitions. Word has length 91 [2022-02-09 00:58:01,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:58:01,827 INFO L470 AbstractCegarLoop]: Abstraction has 40958 states and 185354 transitions. [2022-02-09 00:58:01,827 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) [2022-02-09 00:58:01,827 INFO L276 IsEmpty]: Start isEmpty. Operand 40958 states and 185354 transitions. [2022-02-09 00:58:01,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-09 00:58:01,944 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:58:01,944 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:58:01,944 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-02-09 00:58:01,944 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)] === [2022-02-09 00:58:01,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:58:01,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1947938087, now seen corresponding path program 1 times [2022-02-09 00:58:01,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:58:01,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636774634] [2022-02-09 00:58:01,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:58:01,945 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:58:01,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:58:02,003 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:58:02,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:58:02,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636774634] [2022-02-09 00:58:02,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636774634] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:58:02,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823190544] [2022-02-09 00:58:02,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:58:02,004 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:58:02,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:58:02,020 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) [2022-02-09 00:58:02,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-09 00:58:02,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:58:02,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 4 conjunts are in the unsatisfiable core [2022-02-09 00:58:02,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:58:02,237 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:58:02,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:58:02,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:58:02,378 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823190544] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:58:02,378 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:58:02,378 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-02-09 00:58:02,378 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947693405] [2022-02-09 00:58:02,378 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:58:02,379 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-09 00:58:02,379 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:58:02,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-09 00:58:02,379 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-02-09 00:58:02,379 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) [2022-02-09 00:58:03,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:58:03,318 INFO L93 Difference]: Finished difference Result 67278 states and 307900 transitions. [2022-02-09 00:58:03,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:58:03,318 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 [2022-02-09 00:58:03,318 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:58:03,652 INFO L225 Difference]: With dead ends: 67278 [2022-02-09 00:58:03,653 INFO L226 Difference]: Without dead ends: 67278 [2022-02-09 00:58:03,653 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 [2022-02-09 00:58:03,653 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 [2022-02-09 00:58:03,653 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] [2022-02-09 00:58:04,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67278 states. [2022-02-09 00:58:05,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67278 to 44623. [2022-02-09 00:58:05,450 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) [2022-02-09 00:58:05,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44623 states to 44623 states and 202433 transitions. [2022-02-09 00:58:05,886 INFO L78 Accepts]: Start accepts. Automaton has 44623 states and 202433 transitions. Word has length 96 [2022-02-09 00:58:05,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:58:05,886 INFO L470 AbstractCegarLoop]: Abstraction has 44623 states and 202433 transitions. [2022-02-09 00:58:05,886 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) [2022-02-09 00:58:05,886 INFO L276 IsEmpty]: Start isEmpty. Operand 44623 states and 202433 transitions. [2022-02-09 00:58:06,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-09 00:58:06,017 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:58:06,017 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:58:06,034 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-09 00:58:06,231 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 [2022-02-09 00:58:06,232 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)] === [2022-02-09 00:58:06,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:58:06,232 INFO L85 PathProgramCache]: Analyzing trace with hash 1878312195, now seen corresponding path program 2 times [2022-02-09 00:58:06,232 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:58:06,232 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901484553] [2022-02-09 00:58:06,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:58:06,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:58:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:58:06,290 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 00:58:06,291 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:58:06,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901484553] [2022-02-09 00:58:06,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901484553] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:58:06,291 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:58:06,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:58:06,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358001007] [2022-02-09 00:58:06,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:58:06,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:58:06,291 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:58:06,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:58:06,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:58:06,292 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) [2022-02-09 00:58:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:58:07,225 INFO L93 Difference]: Finished difference Result 78615 states and 359418 transitions. [2022-02-09 00:58:07,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-02-09 00:58:07,225 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 [2022-02-09 00:58:07,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:58:07,629 INFO L225 Difference]: With dead ends: 78615 [2022-02-09 00:58:07,629 INFO L226 Difference]: Without dead ends: 78615 [2022-02-09 00:58:07,630 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 [2022-02-09 00:58:07,631 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 [2022-02-09 00:58:07,631 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] [2022-02-09 00:58:08,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78615 states. [2022-02-09 00:58:09,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78615 to 44839. [2022-02-09 00:58:09,491 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) [2022-02-09 00:58:09,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44839 states to 44839 states and 203387 transitions. [2022-02-09 00:58:09,917 INFO L78 Accepts]: Start accepts. Automaton has 44839 states and 203387 transitions. Word has length 96 [2022-02-09 00:58:09,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:58:09,918 INFO L470 AbstractCegarLoop]: Abstraction has 44839 states and 203387 transitions. [2022-02-09 00:58:09,918 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) [2022-02-09 00:58:09,918 INFO L276 IsEmpty]: Start isEmpty. Operand 44839 states and 203387 transitions. [2022-02-09 00:58:10,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-09 00:58:10,050 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:58:10,051 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:58:10,051 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-02-09 00:58:10,051 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)] === [2022-02-09 00:58:10,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:58:10,051 INFO L85 PathProgramCache]: Analyzing trace with hash 1276245633, now seen corresponding path program 3 times [2022-02-09 00:58:10,051 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:58:10,051 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726114572] [2022-02-09 00:58:10,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:58:10,051 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:58:10,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:58:10,087 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 00:58:10,087 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:58:10,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726114572] [2022-02-09 00:58:10,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726114572] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:58:10,087 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:58:10,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:58:10,087 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501421593] [2022-02-09 00:58:10,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:58:10,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:58:10,088 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:58:10,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:58:10,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:58:10,088 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) [2022-02-09 00:58:10,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:58:10,912 INFO L93 Difference]: Finished difference Result 62259 states and 283965 transitions. [2022-02-09 00:58:10,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 00:58:10,912 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 [2022-02-09 00:58:10,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:58:11,253 INFO L225 Difference]: With dead ends: 62259 [2022-02-09 00:58:11,253 INFO L226 Difference]: Without dead ends: 61899 [2022-02-09 00:58:11,253 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 [2022-02-09 00:58:11,254 INFO L933 BasicCegarLoop]: 153 mSDtfsCounter, 88 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s 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 [2022-02-09 00:58:11,254 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] [2022-02-09 00:58:11,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61899 states. [2022-02-09 00:58:12,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61899 to 44971. [2022-02-09 00:58:13,048 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) [2022-02-09 00:58:13,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44971 states to 44971 states and 203970 transitions. [2022-02-09 00:58:13,263 INFO L78 Accepts]: Start accepts. Automaton has 44971 states and 203970 transitions. Word has length 96 [2022-02-09 00:58:13,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:58:13,264 INFO L470 AbstractCegarLoop]: Abstraction has 44971 states and 203970 transitions. [2022-02-09 00:58:13,264 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) [2022-02-09 00:58:13,264 INFO L276 IsEmpty]: Start isEmpty. Operand 44971 states and 203970 transitions. [2022-02-09 00:58:13,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-09 00:58:13,783 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:58:13,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:58:13,783 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-02-09 00:58:13,783 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)] === [2022-02-09 00:58:13,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:58:13,784 INFO L85 PathProgramCache]: Analyzing trace with hash 1252227581, now seen corresponding path program 4 times [2022-02-09 00:58:13,784 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:58:13,784 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308688772] [2022-02-09 00:58:13,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:58:13,784 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:58:13,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:58:13,836 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 00:58:13,836 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:58:13,836 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308688772] [2022-02-09 00:58:13,836 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308688772] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:58:13,836 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:58:13,836 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:58:13,836 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295178340] [2022-02-09 00:58:13,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:58:13,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:58:13,837 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:58:13,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:58:13,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:58:13,837 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) [2022-02-09 00:58:14,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:58:14,723 INFO L93 Difference]: Finished difference Result 59887 states and 273238 transitions. [2022-02-09 00:58:14,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 00:58:14,724 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 [2022-02-09 00:58:14,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:58:15,054 INFO L225 Difference]: With dead ends: 59887 [2022-02-09 00:58:15,055 INFO L226 Difference]: Without dead ends: 59887 [2022-02-09 00:58:15,055 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 [2022-02-09 00:58:15,055 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, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:58:15,055 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [86 Valid, 362 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:58:15,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59887 states. [2022-02-09 00:58:16,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59887 to 45903. [2022-02-09 00:58:16,706 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) [2022-02-09 00:58:16,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45903 states to 45903 states and 208353 transitions. [2022-02-09 00:58:16,916 INFO L78 Accepts]: Start accepts. Automaton has 45903 states and 208353 transitions. Word has length 96 [2022-02-09 00:58:16,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:58:16,916 INFO L470 AbstractCegarLoop]: Abstraction has 45903 states and 208353 transitions. [2022-02-09 00:58:16,917 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) [2022-02-09 00:58:16,917 INFO L276 IsEmpty]: Start isEmpty. Operand 45903 states and 208353 transitions. [2022-02-09 00:58:17,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-09 00:58:17,043 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:58:17,044 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:58:17,044 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-02-09 00:58:17,044 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)] === [2022-02-09 00:58:17,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:58:17,044 INFO L85 PathProgramCache]: Analyzing trace with hash -1806682297, now seen corresponding path program 5 times [2022-02-09 00:58:17,044 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:58:17,045 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697270311] [2022-02-09 00:58:17,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:58:17,045 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:58:17,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:58:17,131 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:58:17,131 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:58:17,131 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697270311] [2022-02-09 00:58:17,131 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697270311] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:58:17,131 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:58:17,131 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:58:17,131 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1278486278] [2022-02-09 00:58:17,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:58:17,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:58:17,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:58:17,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:58:17,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:58:17,136 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) [2022-02-09 00:58:18,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:58:18,050 INFO L93 Difference]: Finished difference Result 76846 states and 352420 transitions. [2022-02-09 00:58:18,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:58:18,050 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 [2022-02-09 00:58:18,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:58:18,687 INFO L225 Difference]: With dead ends: 76846 [2022-02-09 00:58:18,688 INFO L226 Difference]: Without dead ends: 76846 [2022-02-09 00:58:18,688 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 [2022-02-09 00:58:18,688 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 [2022-02-09 00:58:18,688 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] [2022-02-09 00:58:18,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76846 states. [2022-02-09 00:58:20,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76846 to 44863. [2022-02-09 00:58:20,519 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) [2022-02-09 00:58:20,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44863 states to 44863 states and 203493 transitions. [2022-02-09 00:58:20,718 INFO L78 Accepts]: Start accepts. Automaton has 44863 states and 203493 transitions. Word has length 96 [2022-02-09 00:58:20,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:58:20,718 INFO L470 AbstractCegarLoop]: Abstraction has 44863 states and 203493 transitions. [2022-02-09 00:58:20,718 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) [2022-02-09 00:58:20,718 INFO L276 IsEmpty]: Start isEmpty. Operand 44863 states and 203493 transitions. [2022-02-09 00:58:20,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-09 00:58:20,843 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:58:20,843 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:58:20,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-02-09 00:58:20,843 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)] === [2022-02-09 00:58:20,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:58:20,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1143011957, now seen corresponding path program 6 times [2022-02-09 00:58:20,844 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:58:20,844 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1840459215] [2022-02-09 00:58:20,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:58:20,844 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:58:20,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:58:20,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 00:58:20,871 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:58:20,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1840459215] [2022-02-09 00:58:20,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1840459215] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:58:20,871 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:58:20,871 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:58:20,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665720817] [2022-02-09 00:58:20,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:58:20,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:58:20,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:58:20,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:58:20,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:58:20,872 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) [2022-02-09 00:58:21,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:58:21,669 INFO L93 Difference]: Finished difference Result 71979 states and 328988 transitions. [2022-02-09 00:58:21,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:58:21,669 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 [2022-02-09 00:58:21,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:58:22,271 INFO L225 Difference]: With dead ends: 71979 [2022-02-09 00:58:22,271 INFO L226 Difference]: Without dead ends: 71259 [2022-02-09 00:58:22,271 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 [2022-02-09 00:58:22,272 INFO L933 BasicCegarLoop]: 158 mSDtfsCounter, 130 mSDsluCounter, 259 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 381 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:58:22,272 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 381 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-02-09 00:58:22,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71259 states. [2022-02-09 00:58:23,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71259 to 44887. [2022-02-09 00:58:24,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44887 states, 44886 states have (on average 4.535645858396827) internal successors, (203587), 44886 states have internal predecessors, (203587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:58:24,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44887 states to 44887 states and 203587 transitions. [2022-02-09 00:58:24,207 INFO L78 Accepts]: Start accepts. Automaton has 44887 states and 203587 transitions. Word has length 96 [2022-02-09 00:58:24,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:58:24,207 INFO L470 AbstractCegarLoop]: Abstraction has 44887 states and 203587 transitions. [2022-02-09 00:58:24,207 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) [2022-02-09 00:58:24,207 INFO L276 IsEmpty]: Start isEmpty. Operand 44887 states and 203587 transitions. [2022-02-09 00:58:24,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-09 00:58:24,332 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:58:24,332 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:58:24,332 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-02-09 00:58:24,332 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)] === [2022-02-09 00:58:24,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:58:24,333 INFO L85 PathProgramCache]: Analyzing trace with hash 67109195, now seen corresponding path program 7 times [2022-02-09 00:58:24,333 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:58:24,333 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559565668] [2022-02-09 00:58:24,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:58:24,333 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:58:24,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:58:24,365 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 00:58:24,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:58:24,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559565668] [2022-02-09 00:58:24,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559565668] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:58:24,366 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:58:24,366 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:58:24,366 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491039570] [2022-02-09 00:58:24,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:58:24,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:58:24,366 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:58:24,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:58:24,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:58:24,367 INFO L87 Difference]: Start difference. First operand 44887 states and 203587 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) [2022-02-09 00:58:25,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:58:25,295 INFO L93 Difference]: Finished difference Result 78363 states and 359300 transitions. [2022-02-09 00:58:25,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 00:58:25,295 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 [2022-02-09 00:58:25,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:58:25,968 INFO L225 Difference]: With dead ends: 78363 [2022-02-09 00:58:25,968 INFO L226 Difference]: Without dead ends: 78003 [2022-02-09 00:58:25,969 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 [2022-02-09 00:58:25,970 INFO L933 BasicCegarLoop]: 156 mSDtfsCounter, 111 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 393 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:58:25,970 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [111 Valid, 393 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:58:26,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78003 states. [2022-02-09 00:58:27,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78003 to 44911. [2022-02-09 00:58:27,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44911 states, 44910 states have (on average 4.5353150745936315) internal successors, (203681), 44910 states have internal predecessors, (203681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:58:28,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44911 states to 44911 states and 203681 transitions. [2022-02-09 00:58:28,101 INFO L78 Accepts]: Start accepts. Automaton has 44911 states and 203681 transitions. Word has length 96 [2022-02-09 00:58:28,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:58:28,105 INFO L470 AbstractCegarLoop]: Abstraction has 44911 states and 203681 transitions. [2022-02-09 00:58:28,106 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) [2022-02-09 00:58:28,106 INFO L276 IsEmpty]: Start isEmpty. Operand 44911 states and 203681 transitions. [2022-02-09 00:58:28,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-09 00:58:28,230 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:58:28,231 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:58:28,231 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-02-09 00:58:28,231 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)] === [2022-02-09 00:58:28,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:58:28,231 INFO L85 PathProgramCache]: Analyzing trace with hash 43091143, now seen corresponding path program 8 times [2022-02-09 00:58:28,231 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:58:28,231 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526404860] [2022-02-09 00:58:28,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:58:28,232 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:58:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:58:28,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 00:58:28,316 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:58:28,316 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526404860] [2022-02-09 00:58:28,316 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526404860] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:58:28,316 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:58:28,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-02-09 00:58:28,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195711626] [2022-02-09 00:58:28,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:58:28,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-02-09 00:58:28,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:58:28,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-02-09 00:58:28,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-02-09 00:58:28,317 INFO L87 Difference]: Start difference. First operand 44911 states and 203681 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) [2022-02-09 00:58:29,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:58:29,321 INFO L93 Difference]: Finished difference Result 75567 states and 346451 transitions. [2022-02-09 00:58:29,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 00:58:29,322 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 [2022-02-09 00:58:29,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:58:30,155 INFO L225 Difference]: With dead ends: 75567 [2022-02-09 00:58:30,155 INFO L226 Difference]: Without dead ends: 75567 [2022-02-09 00:58:30,155 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 [2022-02-09 00:58:30,156 INFO L933 BasicCegarLoop]: 149 mSDtfsCounter, 108 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-02-09 00:58:30,156 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [108 Valid, 281 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-02-09 00:58:30,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75567 states. [2022-02-09 00:58:31,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75567 to 45735. [2022-02-09 00:58:31,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45735 states, 45734 states have (on average 4.538745790877684) internal successors, (207575), 45734 states have internal predecessors, (207575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 00:58:32,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45735 states to 45735 states and 207575 transitions. [2022-02-09 00:58:32,126 INFO L78 Accepts]: Start accepts. Automaton has 45735 states and 207575 transitions. Word has length 96 [2022-02-09 00:58:32,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:58:32,126 INFO L470 AbstractCegarLoop]: Abstraction has 45735 states and 207575 transitions. [2022-02-09 00:58:32,126 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) [2022-02-09 00:58:32,126 INFO L276 IsEmpty]: Start isEmpty. Operand 45735 states and 207575 transitions. [2022-02-09 00:58:32,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2022-02-09 00:58:32,259 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:58:32,259 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] [2022-02-09 00:58:32,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-02-09 00:58:32,259 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)] === [2022-02-09 00:58:32,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:58:32,259 INFO L85 PathProgramCache]: Analyzing trace with hash 1279148561, now seen corresponding path program 9 times [2022-02-09 00:58:32,259 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:58:32,259 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978856298] [2022-02-09 00:58:32,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:58:32,260 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:58:32,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:58:32,559 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:58:32,559 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:58:32,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978856298] [2022-02-09 00:58:32,560 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978856298] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 00:58:32,560 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 00:58:32,560 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-02-09 00:58:32,560 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98056396] [2022-02-09 00:58:32,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 00:58:32,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-02-09 00:58:32,561 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:58:32,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-02-09 00:58:32,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-02-09 00:58:32,561 INFO L87 Difference]: Start difference. First operand 45735 states and 207575 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) [2022-02-09 00:58:33,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:58:33,120 INFO L93 Difference]: Finished difference Result 67462 states and 308757 transitions. [2022-02-09 00:58:33,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-02-09 00:58:33,120 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 [2022-02-09 00:58:33,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:58:33,721 INFO L225 Difference]: With dead ends: 67462 [2022-02-09 00:58:33,721 INFO L226 Difference]: Without dead ends: 67462 [2022-02-09 00:58:33,721 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 [2022-02-09 00:58:33,721 INFO L933 BasicCegarLoop]: 170 mSDtfsCounter, 139 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:58:33,721 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 343 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:58:33,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67462 states. [2022-02-09 00:58:35,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67462 to 44563. [2022-02-09 00:58:35,423 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) [2022-02-09 00:58:35,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44563 states to 44563 states and 202132 transitions. [2022-02-09 00:58:35,618 INFO L78 Accepts]: Start accepts. Automaton has 44563 states and 202132 transitions. Word has length 96 [2022-02-09 00:58:35,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:58:35,618 INFO L470 AbstractCegarLoop]: Abstraction has 44563 states and 202132 transitions. [2022-02-09 00:58:35,618 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) [2022-02-09 00:58:35,619 INFO L276 IsEmpty]: Start isEmpty. Operand 44563 states and 202132 transitions. [2022-02-09 00:58:35,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-09 00:58:35,746 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:58:35,746 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:58:35,746 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-02-09 00:58:35,746 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)] === [2022-02-09 00:58:35,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:58:35,746 INFO L85 PathProgramCache]: Analyzing trace with hash 669224837, now seen corresponding path program 1 times [2022-02-09 00:58:35,746 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:58:35,747 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545790047] [2022-02-09 00:58:35,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:58:35,747 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:58:35,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:58:35,848 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:58:35,848 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:58:35,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545790047] [2022-02-09 00:58:35,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545790047] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:58:35,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [198313285] [2022-02-09 00:58:35,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:58:35,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:58:35,849 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:58:35,850 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) [2022-02-09 00:58:35,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-09 00:58:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:58:35,937 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-09 00:58:35,939 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:58:36,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:58:36,581 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:58:36,931 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:58:36,931 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [198313285] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:58:36,931 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:58:36,931 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 7] total 10 [2022-02-09 00:58:36,932 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405181611] [2022-02-09 00:58:36,932 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:58:36,932 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 00:58:36,933 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:58:36,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 00:58:36,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-09 00:58:36,934 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) [2022-02-09 00:58:39,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:58:39,598 INFO L93 Difference]: Finished difference Result 216024 states and 976955 transitions. [2022-02-09 00:58:39,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-02-09 00:58:39,598 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 [2022-02-09 00:58:39,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:58:41,966 INFO L225 Difference]: With dead ends: 216024 [2022-02-09 00:58:41,966 INFO L226 Difference]: Without dead ends: 208605 [2022-02-09 00:58:41,966 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 [2022-02-09 00:58:41,966 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 337 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 286 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 1464 SdHoareTripleChecker+Invalid, 293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-02-09 00:58:41,967 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [337 Valid, 1464 Invalid, 293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 286 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-02-09 00:58:42,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208605 states. [2022-02-09 00:58:49,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208605 to 182384. [2022-02-09 00:58:49,366 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) [2022-02-09 00:58:51,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182384 states to 182384 states and 838586 transitions. [2022-02-09 00:58:51,053 INFO L78 Accepts]: Start accepts. Automaton has 182384 states and 838586 transitions. Word has length 101 [2022-02-09 00:58:51,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:58:51,053 INFO L470 AbstractCegarLoop]: Abstraction has 182384 states and 838586 transitions. [2022-02-09 00:58:51,053 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) [2022-02-09 00:58:51,053 INFO L276 IsEmpty]: Start isEmpty. Operand 182384 states and 838586 transitions. [2022-02-09 00:58:51,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2022-02-09 00:58:51,890 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:58:51,890 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-02-09 00:58:51,909 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-09 00:58:52,107 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 [2022-02-09 00:58:52,108 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)] === [2022-02-09 00:58:52,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:58:52,108 INFO L85 PathProgramCache]: Analyzing trace with hash 1185760927, now seen corresponding path program 2 times [2022-02-09 00:58:52,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:58:52,108 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476130185] [2022-02-09 00:58:52,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:58:52,108 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:58:52,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:58:52,214 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 00:58:52,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:58:52,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476130185] [2022-02-09 00:58:52,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476130185] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:58:52,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574534825] [2022-02-09 00:58:52,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 00:58:52,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:58:52,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:58:52,232 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) [2022-02-09 00:58:52,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-09 00:58:52,344 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 00:58:52,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 00:58:52,346 INFO L263 TraceCheckSpWp]: Trace formula consists of 276 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-09 00:58:52,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:58:53,024 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 00:58:53,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:58:53,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 00:58:53,327 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574534825] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:58:53,327 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:58:53,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 12 [2022-02-09 00:58:53,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239641301] [2022-02-09 00:58:53,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:58:53,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-02-09 00:58:53,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:58:53,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-02-09 00:58:53,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2022-02-09 00:58:53,328 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) [2022-02-09 00:58:59,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:58:59,755 INFO L93 Difference]: Finished difference Result 438427 states and 1998890 transitions. [2022-02-09 00:58:59,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-02-09 00:58:59,755 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 [2022-02-09 00:58:59,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:59:04,169 INFO L225 Difference]: With dead ends: 438427 [2022-02-09 00:59:04,169 INFO L226 Difference]: Without dead ends: 425167 [2022-02-09 00:59:04,170 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 [2022-02-09 00:59:04,170 INFO L933 BasicCegarLoop]: 260 mSDtfsCounter, 533 mSDsluCounter, 1833 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 533 SdHoareTripleChecker+Valid, 1920 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-02-09 00:59:04,170 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [533 Valid, 1920 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-02-09 00:59:05,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425167 states. [2022-02-09 00:59:18,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425167 to 232114. [2022-02-09 00:59:18,811 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) [2022-02-09 00:59:21,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232114 states to 232114 states and 1069122 transitions. [2022-02-09 00:59:21,354 INFO L78 Accepts]: Start accepts. Automaton has 232114 states and 1069122 transitions. Word has length 101 [2022-02-09 00:59:21,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:59:21,355 INFO L470 AbstractCegarLoop]: Abstraction has 232114 states and 1069122 transitions. [2022-02-09 00:59:21,355 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) [2022-02-09 00:59:21,355 INFO L276 IsEmpty]: Start isEmpty. Operand 232114 states and 1069122 transitions. [2022-02-09 00:59:22,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-09 00:59:22,985 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:59:22,985 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] [2022-02-09 00:59:23,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-09 00:59:23,201 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 [2022-02-09 00:59:23,202 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)] === [2022-02-09 00:59:23,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:59:23,202 INFO L85 PathProgramCache]: Analyzing trace with hash -241064789, now seen corresponding path program 3 times [2022-02-09 00:59:23,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:59:23,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319768031] [2022-02-09 00:59:23,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:59:23,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:59:23,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:59:23,319 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 00:59:23,319 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:59:23,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319768031] [2022-02-09 00:59:23,320 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319768031] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:59:23,320 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313581360] [2022-02-09 00:59:23,320 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 00:59:23,320 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:59:23,320 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:59:23,324 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) [2022-02-09 00:59:23,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-09 00:59:23,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-09 00:59:23,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 00:59:23,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-09 00:59:23,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:59:23,835 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 00:59:23,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:59:24,063 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-09 00:59:24,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313581360] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:59:24,063 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:59:24,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-02-09 00:59:24,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899667228] [2022-02-09 00:59:24,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:59:24,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 00:59:24,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:59:24,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 00:59:24,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-02-09 00:59:24,064 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) [2022-02-09 00:59:31,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-02-09 00:59:31,079 INFO L93 Difference]: Finished difference Result 443406 states and 2039796 transitions. [2022-02-09 00:59:31,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 00:59:31,079 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 [2022-02-09 00:59:31,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-02-09 00:59:35,019 INFO L225 Difference]: With dead ends: 443406 [2022-02-09 00:59:35,019 INFO L226 Difference]: Without dead ends: 433839 [2022-02-09 00:59:35,020 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 [2022-02-09 00:59:35,020 INFO L933 BasicCegarLoop]: 337 mSDtfsCounter, 818 mSDsluCounter, 2751 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 2698 SdHoareTripleChecker+Invalid, 957 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-02-09 00:59:35,021 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [818 Valid, 2698 Invalid, 957 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-02-09 00:59:36,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433839 states. [2022-02-09 00:59:48,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433839 to 232750. [2022-02-09 00:59:48,920 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) [2022-02-09 00:59:51,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232750 states to 232750 states and 1071632 transitions. [2022-02-09 00:59:51,724 INFO L78 Accepts]: Start accepts. Automaton has 232750 states and 1071632 transitions. Word has length 106 [2022-02-09 00:59:51,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-02-09 00:59:51,725 INFO L470 AbstractCegarLoop]: Abstraction has 232750 states and 1071632 transitions. [2022-02-09 00:59:51,725 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) [2022-02-09 00:59:51,725 INFO L276 IsEmpty]: Start isEmpty. Operand 232750 states and 1071632 transitions. [2022-02-09 00:59:53,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2022-02-09 00:59:53,564 INFO L506 BasicCegarLoop]: Found error trace [2022-02-09 00:59:53,565 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] [2022-02-09 00:59:53,582 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-09 00:59:53,779 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 [2022-02-09 00:59:53,779 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)] === [2022-02-09 00:59:53,780 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 00:59:53,780 INFO L85 PathProgramCache]: Analyzing trace with hash -208197391, now seen corresponding path program 4 times [2022-02-09 00:59:53,780 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 00:59:53,780 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1156450888] [2022-02-09 00:59:53,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 00:59:53,780 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 00:59:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 00:59:53,871 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 1 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:59:53,871 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 00:59:53,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1156450888] [2022-02-09 00:59:53,871 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1156450888] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 00:59:53,871 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [424279536] [2022-02-09 00:59:53,871 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 00:59:53,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 00:59:53,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 00:59:53,872 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) [2022-02-09 00:59:53,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-09 00:59:54,034 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 00:59:54,034 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 00:59:54,035 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 8 conjunts are in the unsatisfiable core [2022-02-09 00:59:54,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 00:59:54,346 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:59:54,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 00:59:54,536 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 00:59:54,537 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [424279536] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 00:59:54,537 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 00:59:54,537 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-02-09 00:59:54,537 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459007956] [2022-02-09 00:59:54,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 00:59:54,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-02-09 00:59:54,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 00:59:54,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-02-09 00:59:54,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=191, Unknown=0, NotChecked=0, Total=240 [2022-02-09 00:59:54,539 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)