/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-difference-det.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 17:19:53,886 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 17:19:53,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 17:19:53,940 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-03 17:19:53,969 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 17:19:53,970 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 17:19:53,970 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 17:19:53,971 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-03-03 17:19:53,989 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 17:19:53,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 17:19:53,989 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 17:19:53,989 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 17:19:53,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 17:19:53,990 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 17:19:53,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 17:19:53,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 17:19:53,991 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 17:19:53,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 17:19:53,994 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 17:19:53,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 17:19:53,995 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 17:19:53,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 17:19:53,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 17:19:53,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 17:19:53,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 17:19:53,995 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 17:19:53,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 17:19:53,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 17:19:53,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 17:19:53,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 17:19:53,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 17:19:53,996 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 17:19:53,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 17:19:53,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 17:19:53,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 17:19:53,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 17:19:53,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 17:19:53,996 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 17:19:53,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 17:19:53,996 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 17:19:53,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 17:19:53,997 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 17:19:54,144 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 17:19:54,157 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 17:19:54,159 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 17:19:54,159 INFO L271 PluginConnector]: Initializing CDTParser... [2022-03-03 17:19:54,160 INFO L275 PluginConnector]: CDTParser initialized [2022-03-03 17:19:54,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c [2022-03-03 17:19:54,210 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7a70e9c/af9549f8f10d4960b5f377ad425dfa94/FLAG954a2e34c [2022-03-03 17:19:54,553 INFO L306 CDTParser]: Found 1 translation units. [2022-03-03 17:19:54,554 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-difference-det.wvr.c [2022-03-03 17:19:54,560 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7a70e9c/af9549f8f10d4960b5f377ad425dfa94/FLAG954a2e34c [2022-03-03 17:19:54,568 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c7a70e9c/af9549f8f10d4960b5f377ad425dfa94 [2022-03-03 17:19:54,570 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 17:19:54,571 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-03-03 17:19:54,572 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-03-03 17:19:54,572 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-03-03 17:19:54,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-03-03 17:19:54,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:19:54" (1/1) ... [2022-03-03 17:19:54,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fd14ddc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:19:54, skipping insertion in model container [2022-03-03 17:19:54,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.03 05:19:54" (1/1) ... [2022-03-03 17:19:54,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-03-03 17:19:54,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-03-03 17:19:54,726 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-difference-det.wvr.c[2507,2520] [2022-03-03 17:19:54,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 17:19:54,733 INFO L203 MainTranslator]: Completed pre-run [2022-03-03 17:19:54,747 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-difference-det.wvr.c[2507,2520] [2022-03-03 17:19:54,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-03-03 17:19:54,757 INFO L208 MainTranslator]: Completed translation [2022-03-03 17:19:54,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:19:54 WrapperNode [2022-03-03 17:19:54,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-03-03 17:19:54,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 17:19:54,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 17:19:54,758 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 17:19:54,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:19:54" (1/1) ... [2022-03-03 17:19:54,772 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:19:54" (1/1) ... [2022-03-03 17:19:54,786 INFO L137 Inliner]: procedures = 23, calls = 41, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 120 [2022-03-03 17:19:54,786 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 17:19:54,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 17:19:54,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 17:19:54,787 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 17:19:54,792 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:19:54" (1/1) ... [2022-03-03 17:19:54,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:19:54" (1/1) ... [2022-03-03 17:19:54,794 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:19:54" (1/1) ... [2022-03-03 17:19:54,794 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:19:54" (1/1) ... [2022-03-03 17:19:54,797 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:19:54" (1/1) ... [2022-03-03 17:19:54,799 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:19:54" (1/1) ... [2022-03-03 17:19:54,800 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:19:54" (1/1) ... [2022-03-03 17:19:54,802 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 17:19:54,803 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 17:19:54,803 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 17:19:54,803 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 17:19:54,804 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:19:54" (1/1) ... [2022-03-03 17:19:54,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 17:19:54,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:19:54,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-03 17:19:54,846 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-03 17:19:54,866 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-03-03 17:19:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 17:19:54,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 17:19:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 17:19:54,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 17:19:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-03 17:19:54,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-03 17:19:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-03 17:19:54,867 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-03 17:19:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-03-03 17:19:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-03-03 17:19:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-03-03 17:19:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-03-03 17:19:54,867 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-03-03 17:19:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 17:19:54,868 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 17:19:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-03-03 17:19:54,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-03-03 17:19:54,869 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 17:19:54,933 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 17:19:54,934 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 17:19:55,107 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 17:19:55,144 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 17:19:55,144 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-03-03 17:19:55,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 05:19:55 BoogieIcfgContainer [2022-03-03 17:19:55,147 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 17:19:55,150 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 17:19:55,151 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 17:19:55,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 17:19:55,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.03 05:19:54" (1/3) ... [2022-03-03 17:19:55,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7029ffff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:19:55, skipping insertion in model container [2022-03-03 17:19:55,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.03 05:19:54" (2/3) ... [2022-03-03 17:19:55,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7029ffff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 05:19:55, skipping insertion in model container [2022-03-03 17:19:55,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 05:19:55" (3/3) ... [2022-03-03 17:19:55,156 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-difference-det.wvr.c [2022-03-03 17:19:55,160 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 17:19:55,160 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 17:19:55,160 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 17:19:55,160 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 17:19:55,197 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,198 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,198 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,198 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,198 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,198 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,199 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,200 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,200 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,200 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,200 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,200 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,201 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,201 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,202 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,203 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,204 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,205 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,205 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,205 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,205 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,205 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,205 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,206 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,206 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,206 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,206 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,206 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,206 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,206 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,206 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,207 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,207 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,207 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,207 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,207 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,207 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,207 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,207 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,208 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,208 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,208 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,208 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,208 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,208 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,209 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,209 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,209 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,209 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,209 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,209 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,209 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,209 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,210 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,210 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,210 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,210 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,210 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,210 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,210 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,210 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,211 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,211 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,211 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,211 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,213 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_~i~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,214 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,215 WARN L322 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~i~2 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,215 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,216 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,216 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,228 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_~i~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,229 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,229 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,229 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,229 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,230 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,230 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-03 17:19:55,244 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-03 17:19:55,289 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 17:19:55,294 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 17:19:55,294 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-03 17:19:55,302 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 132 places, 128 transitions, 288 flow [2022-03-03 17:19:56,495 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 33655 states, 33654 states have (on average 4.971622986866346) internal successors, (167315), 33654 states have internal predecessors, (167315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:56,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 33655 states, 33654 states have (on average 4.971622986866346) internal successors, (167315), 33654 states have internal predecessors, (167315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:56,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-03 17:19:56,942 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:19:56,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:19:56,943 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:19:56,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:19:56,947 INFO L85 PathProgramCache]: Analyzing trace with hash -1086084157, now seen corresponding path program 1 times [2022-03-03 17:19:56,953 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:19:56,953 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [737480250] [2022-03-03 17:19:56,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:19:56,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:19:57,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:19:57,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:19:57,143 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:19:57,143 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [737480250] [2022-03-03 17:19:57,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [737480250] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:19:57,144 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:19:57,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-03 17:19:57,145 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611710793] [2022-03-03 17:19:57,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:19:57,148 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-03-03 17:19:57,149 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:19:57,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-03-03 17:19:57,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 17:19:57,229 INFO L87 Difference]: Start difference. First operand has 33655 states, 33654 states have (on average 4.971622986866346) internal successors, (167315), 33654 states have internal predecessors, (167315), 0 states have call successors, (0), 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 42.5) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:57,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:19:57,801 INFO L93 Difference]: Finished difference Result 33655 states and 153292 transitions. [2022-03-03 17:19:57,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-03 17:19:57,803 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-03-03 17:19:57,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:19:58,164 INFO L225 Difference]: With dead ends: 33655 [2022-03-03 17:19:58,165 INFO L226 Difference]: Without dead ends: 33654 [2022-03-03 17:19:58,166 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-03-03 17:19:58,168 INFO L933 BasicCegarLoop]: 94 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, 94 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:19:58,169 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 94 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:19:58,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33654 states. [2022-03-03 17:19:59,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33654 to 33654. [2022-03-03 17:19:59,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33654 states, 33653 states have (on average 4.5550470983270435) internal successors, (153291), 33653 states have internal predecessors, (153291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:59,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33654 states to 33654 states and 153291 transitions. [2022-03-03 17:19:59,824 INFO L78 Accepts]: Start accepts. Automaton has 33654 states and 153291 transitions. Word has length 85 [2022-03-03 17:19:59,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:19:59,824 INFO L470 AbstractCegarLoop]: Abstraction has 33654 states and 153291 transitions. [2022-03-03 17:19:59,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 42.5) internal successors, (85), 2 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:19:59,825 INFO L276 IsEmpty]: Start isEmpty. Operand 33654 states and 153291 transitions. [2022-03-03 17:20:00,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2022-03-03 17:20:00,068 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:00,068 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:00,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 17:20:00,069 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:20:00,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:00,071 INFO L85 PathProgramCache]: Analyzing trace with hash 2079417670, now seen corresponding path program 1 times [2022-03-03 17:20:00,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:00,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334047343] [2022-03-03 17:20:00,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:00,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:00,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:00,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:00,324 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:00,325 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334047343] [2022-03-03 17:20:00,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [334047343] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:20:00,325 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:20:00,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 17:20:00,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103980087] [2022-03-03 17:20:00,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:20:00,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 17:20:00,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:00,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 17:20:00,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:20:00,327 INFO L87 Difference]: Start difference. First operand 33654 states and 153291 transitions. Second operand has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:01,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:01,045 INFO L93 Difference]: Finished difference Result 51348 states and 228414 transitions. [2022-03-03 17:20:01,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 17:20:01,045 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 85 [2022-03-03 17:20:01,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:01,535 INFO L225 Difference]: With dead ends: 51348 [2022-03-03 17:20:01,536 INFO L226 Difference]: Without dead ends: 47760 [2022-03-03 17:20:01,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:20:01,537 INFO L933 BasicCegarLoop]: 94 mSDtfsCounter, 137 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:01,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [137 Valid, 454 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:20:01,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47760 states. [2022-03-03 17:20:02,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47760 to 40950. [2022-03-03 17:20:02,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40950 states, 40949 states have (on average 4.510342132897018) internal successors, (184694), 40949 states have internal predecessors, (184694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:03,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40950 states to 40950 states and 184694 transitions. [2022-03-03 17:20:03,189 INFO L78 Accepts]: Start accepts. Automaton has 40950 states and 184694 transitions. Word has length 85 [2022-03-03 17:20:03,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:03,190 INFO L470 AbstractCegarLoop]: Abstraction has 40950 states and 184694 transitions. [2022-03-03 17:20:03,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.166666666666666) internal successors, (85), 6 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:03,190 INFO L276 IsEmpty]: Start isEmpty. Operand 40950 states and 184694 transitions. [2022-03-03 17:20:03,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-03 17:20:03,329 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:03,329 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:03,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 17:20:03,329 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:20:03,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:03,330 INFO L85 PathProgramCache]: Analyzing trace with hash -828432796, now seen corresponding path program 1 times [2022-03-03 17:20:03,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:03,330 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796174215] [2022-03-03 17:20:03,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:03,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:03,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:03,407 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:03,408 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:03,408 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796174215] [2022-03-03 17:20:03,408 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796174215] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:20:03,408 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:20:03,408 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-03 17:20:03,408 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221895380] [2022-03-03 17:20:03,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:20:03,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-03 17:20:03,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:03,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-03 17:20:03,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-03 17:20:03,410 INFO L87 Difference]: Start difference. First operand 40950 states and 184694 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:04,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:04,274 INFO L93 Difference]: Finished difference Result 54408 states and 243176 transitions. [2022-03-03 17:20:04,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 17:20:04,274 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-03-03 17:20:04,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:04,658 INFO L225 Difference]: With dead ends: 54408 [2022-03-03 17:20:04,658 INFO L226 Difference]: Without dead ends: 53184 [2022-03-03 17:20:04,658 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-03 17:20:04,659 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 155 mSDsluCounter, 400 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 548 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:04,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [155 Valid, 548 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:20:04,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53184 states. [2022-03-03 17:20:06,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53184 to 40284. [2022-03-03 17:20:06,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40284 states, 40283 states have (on average 4.5207159347615615) internal successors, (182108), 40283 states have internal predecessors, (182108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:06,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40284 states to 40284 states and 182108 transitions. [2022-03-03 17:20:06,554 INFO L78 Accepts]: Start accepts. Automaton has 40284 states and 182108 transitions. Word has length 90 [2022-03-03 17:20:06,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:06,554 INFO L470 AbstractCegarLoop]: Abstraction has 40284 states and 182108 transitions. [2022-03-03 17:20:06,554 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:06,554 INFO L276 IsEmpty]: Start isEmpty. Operand 40284 states and 182108 transitions. [2022-03-03 17:20:06,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-03 17:20:06,712 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:06,712 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:06,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-03-03 17:20:06,713 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:20:06,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:06,713 INFO L85 PathProgramCache]: Analyzing trace with hash 739771262, now seen corresponding path program 1 times [2022-03-03 17:20:06,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:06,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159303389] [2022-03-03 17:20:06,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:06,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:06,786 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:06,786 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:06,786 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159303389] [2022-03-03 17:20:06,787 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159303389] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:20:06,787 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403628917] [2022-03-03 17:20:06,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:06,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:20:06,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:20:06,804 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:20:06,807 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-03-03 17:20:06,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:06,912 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-03 17:20:06,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:20:07,167 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:07,167 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:20:07,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:07,288 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403628917] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:20:07,288 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:20:07,288 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-03-03 17:20:07,288 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718251925] [2022-03-03 17:20:07,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:20:07,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:20:07,289 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:07,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:20:07,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:20:07,289 INFO L87 Difference]: Start difference. First operand 40284 states and 182108 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:08,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:08,286 INFO L93 Difference]: Finished difference Result 70248 states and 317216 transitions. [2022-03-03 17:20:08,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:20:08,286 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-03-03 17:20:08,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:08,862 INFO L225 Difference]: With dead ends: 70248 [2022-03-03 17:20:08,863 INFO L226 Difference]: Without dead ends: 70248 [2022-03-03 17:20:08,863 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 176 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:20:08,864 INFO L933 BasicCegarLoop]: 233 mSDtfsCounter, 466 mSDsluCounter, 1362 mSDsCounter, 0 mSdLazyCounter, 325 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 466 SdHoareTripleChecker+Valid, 1433 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 325 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:08,864 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [466 Valid, 1433 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 325 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:20:08,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70248 states. [2022-03-03 17:20:10,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70248 to 43578. [2022-03-03 17:20:10,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43578 states, 43577 states have (on average 4.527824310989742) internal successors, (197309), 43577 states have internal predecessors, (197309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:10,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43578 states to 43578 states and 197309 transitions. [2022-03-03 17:20:10,819 INFO L78 Accepts]: Start accepts. Automaton has 43578 states and 197309 transitions. Word has length 90 [2022-03-03 17:20:10,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:10,819 INFO L470 AbstractCegarLoop]: Abstraction has 43578 states and 197309 transitions. [2022-03-03 17:20:10,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:10,819 INFO L276 IsEmpty]: Start isEmpty. Operand 43578 states and 197309 transitions. [2022-03-03 17:20:10,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-03 17:20:10,969 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:10,969 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:10,989 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-03-03 17:20:11,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:20:11,171 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:20:11,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:11,172 INFO L85 PathProgramCache]: Analyzing trace with hash 121243518, now seen corresponding path program 2 times [2022-03-03 17:20:11,172 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:11,172 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109201458] [2022-03-03 17:20:11,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:11,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:11,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:11,227 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:11,228 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:11,228 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109201458] [2022-03-03 17:20:11,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [109201458] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:20:11,228 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:20:11,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-03 17:20:11,228 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753163880] [2022-03-03 17:20:11,228 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:20:11,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-03 17:20:11,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:11,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-03 17:20:11,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-03 17:20:11,229 INFO L87 Difference]: Start difference. First operand 43578 states and 197309 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:12,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:12,019 INFO L93 Difference]: Finished difference Result 68214 states and 305483 transitions. [2022-03-03 17:20:12,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 17:20:12,023 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-03-03 17:20:12,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:12,361 INFO L225 Difference]: With dead ends: 68214 [2022-03-03 17:20:12,361 INFO L226 Difference]: Without dead ends: 67116 [2022-03-03 17:20:12,361 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:20:12,362 INFO L933 BasicCegarLoop]: 178 mSDtfsCounter, 190 mSDsluCounter, 328 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 190 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:12,362 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [190 Valid, 468 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:20:12,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67116 states. [2022-03-03 17:20:13,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67116 to 43758. [2022-03-03 17:20:13,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43758 states, 43757 states have (on average 4.526887126631167) internal successors, (198083), 43757 states have internal predecessors, (198083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:14,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43758 states to 43758 states and 198083 transitions. [2022-03-03 17:20:14,416 INFO L78 Accepts]: Start accepts. Automaton has 43758 states and 198083 transitions. Word has length 90 [2022-03-03 17:20:14,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:14,417 INFO L470 AbstractCegarLoop]: Abstraction has 43758 states and 198083 transitions. [2022-03-03 17:20:14,417 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:14,417 INFO L276 IsEmpty]: Start isEmpty. Operand 43758 states and 198083 transitions. [2022-03-03 17:20:14,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-03 17:20:14,533 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:14,533 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:14,533 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-03 17:20:14,533 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:20:14,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:14,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1495435758, now seen corresponding path program 2 times [2022-03-03 17:20:14,534 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:14,534 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744045862] [2022-03-03 17:20:14,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:14,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:14,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:14,600 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:14,600 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:14,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744045862] [2022-03-03 17:20:14,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744045862] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:20:14,600 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933071160] [2022-03-03 17:20:14,600 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 17:20:14,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:20:14,600 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:20:14,602 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:20:14,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-03 17:20:14,669 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 17:20:14,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:20:14,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-03 17:20:14,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:20:14,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:14,802 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:20:14,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:14,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933071160] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:20:14,908 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:20:14,908 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-03-03 17:20:14,908 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648413556] [2022-03-03 17:20:14,908 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:20:14,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:20:14,909 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:14,909 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:20:14,909 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:20:14,909 INFO L87 Difference]: Start difference. First operand 43758 states and 198083 transitions. Second operand has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 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) [2022-03-03 17:20:15,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:15,839 INFO L93 Difference]: Finished difference Result 70932 states and 317912 transitions. [2022-03-03 17:20:15,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-03 17:20:15,839 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 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) Word has length 90 [2022-03-03 17:20:15,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:16,416 INFO L225 Difference]: With dead ends: 70932 [2022-03-03 17:20:16,416 INFO L226 Difference]: Without dead ends: 70932 [2022-03-03 17:20:16,416 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 175 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156 [2022-03-03 17:20:16,417 INFO L933 BasicCegarLoop]: 213 mSDtfsCounter, 362 mSDsluCounter, 813 mSDsCounter, 0 mSdLazyCounter, 217 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 929 SdHoareTripleChecker+Invalid, 226 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:16,417 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 929 Invalid, 226 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 217 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:20:16,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70932 states. [2022-03-03 17:20:17,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70932 to 46284. [2022-03-03 17:20:17,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46284 states, 46283 states have (on average 4.533781301989931) internal successors, (209837), 46283 states have internal predecessors, (209837), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:18,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46284 states to 46284 states and 209837 transitions. [2022-03-03 17:20:18,176 INFO L78 Accepts]: Start accepts. Automaton has 46284 states and 209837 transitions. Word has length 90 [2022-03-03 17:20:18,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:18,177 INFO L470 AbstractCegarLoop]: Abstraction has 46284 states and 209837 transitions. [2022-03-03 17:20:18,177 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 11.545454545454545) internal successors, (127), 11 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) [2022-03-03 17:20:18,177 INFO L276 IsEmpty]: Start isEmpty. Operand 46284 states and 209837 transitions. [2022-03-03 17:20:18,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-03 17:20:18,521 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:18,522 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:18,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-03 17:20:18,731 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,SelfDestructingSolverStorable5 [2022-03-03 17:20:18,731 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:20:18,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:18,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1745536298, now seen corresponding path program 3 times [2022-03-03 17:20:18,732 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:18,732 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659861555] [2022-03-03 17:20:18,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:18,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:18,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:18,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:18,792 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:18,792 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659861555] [2022-03-03 17:20:18,792 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659861555] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:20:18,792 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:20:18,792 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 17:20:18,792 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941925518] [2022-03-03 17:20:18,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:20:18,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 17:20:18,792 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:18,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 17:20:18,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:20:18,793 INFO L87 Difference]: Start difference. First operand 46284 states and 209837 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:19,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:19,651 INFO L93 Difference]: Finished difference Result 76842 states and 347462 transitions. [2022-03-03 17:20:19,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 17:20:19,651 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-03-03 17:20:19,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:20,036 INFO L225 Difference]: With dead ends: 76842 [2022-03-03 17:20:20,036 INFO L226 Difference]: Without dead ends: 76842 [2022-03-03 17:20:20,037 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:20:20,037 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 161 mSDsluCounter, 577 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 697 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:20,037 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 697 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:20:20,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76842 states. [2022-03-03 17:20:21,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76842 to 45348. [2022-03-03 17:20:21,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45348 states, 45347 states have (on average 4.532890819679362) internal successors, (205553), 45347 states have internal predecessors, (205553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:22,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45348 states to 45348 states and 205553 transitions. [2022-03-03 17:20:22,155 INFO L78 Accepts]: Start accepts. Automaton has 45348 states and 205553 transitions. Word has length 90 [2022-03-03 17:20:22,155 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:22,155 INFO L470 AbstractCegarLoop]: Abstraction has 45348 states and 205553 transitions. [2022-03-03 17:20:22,155 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:22,156 INFO L276 IsEmpty]: Start isEmpty. Operand 45348 states and 205553 transitions. [2022-03-03 17:20:22,296 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-03 17:20:22,296 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:22,296 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:22,296 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-03 17:20:22,296 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:20:22,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:22,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1401233456, now seen corresponding path program 4 times [2022-03-03 17:20:22,297 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:22,297 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123264236] [2022-03-03 17:20:22,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:22,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:22,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:22,348 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:22,348 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:22,348 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123264236] [2022-03-03 17:20:22,348 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123264236] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:20:22,348 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:20:22,348 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-03 17:20:22,348 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296693401] [2022-03-03 17:20:22,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:20:22,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-03 17:20:22,349 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:22,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-03 17:20:22,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-03 17:20:22,349 INFO L87 Difference]: Start difference. First operand 45348 states and 205553 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:23,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:23,285 INFO L93 Difference]: Finished difference Result 71736 states and 325159 transitions. [2022-03-03 17:20:23,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 17:20:23,286 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-03-03 17:20:23,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:23,610 INFO L225 Difference]: With dead ends: 71736 [2022-03-03 17:20:23,610 INFO L226 Difference]: Without dead ends: 70656 [2022-03-03 17:20:23,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-03 17:20:23,611 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 147 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 84 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 433 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 84 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:23,611 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [147 Valid, 433 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 84 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 17:20:24,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70656 states. [2022-03-03 17:20:25,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70656 to 44856. [2022-03-03 17:20:25,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44856 states, 44855 states have (on average 4.534500055735147) internal successors, (203395), 44855 states have internal predecessors, (203395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:25,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44856 states to 44856 states and 203395 transitions. [2022-03-03 17:20:25,700 INFO L78 Accepts]: Start accepts. Automaton has 44856 states and 203395 transitions. Word has length 90 [2022-03-03 17:20:25,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:25,701 INFO L470 AbstractCegarLoop]: Abstraction has 44856 states and 203395 transitions. [2022-03-03 17:20:25,701 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:25,701 INFO L276 IsEmpty]: Start isEmpty. Operand 44856 states and 203395 transitions. [2022-03-03 17:20:25,825 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-03 17:20:25,825 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:25,825 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:25,825 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-03 17:20:25,825 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:20:25,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:25,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1852537748, now seen corresponding path program 3 times [2022-03-03 17:20:25,826 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:25,826 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545230850] [2022-03-03 17:20:25,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:25,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:25,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:25,881 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:25,881 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:25,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545230850] [2022-03-03 17:20:25,881 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545230850] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:20:25,881 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [807918078] [2022-03-03 17:20:25,882 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 17:20:25,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:20:25,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:20:25,896 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:20:25,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-03 17:20:25,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-03-03 17:20:25,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:20:25,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-03 17:20:25,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:20:26,097 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:26,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:20:26,211 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:26,211 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [807918078] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:20:26,211 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:20:26,211 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 9 [2022-03-03 17:20:26,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833082962] [2022-03-03 17:20:26,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:20:26,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-03 17:20:26,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:26,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-03 17:20:26,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-03-03 17:20:26,212 INFO L87 Difference]: Start difference. First operand 44856 states and 203395 transitions. Second operand has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:27,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:27,328 INFO L93 Difference]: Finished difference Result 84372 states and 383953 transitions. [2022-03-03 17:20:27,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:20:27,330 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-03-03 17:20:27,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:27,971 INFO L225 Difference]: With dead ends: 84372 [2022-03-03 17:20:27,972 INFO L226 Difference]: Without dead ends: 84372 [2022-03-03 17:20:27,972 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 182 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:20:27,972 INFO L933 BasicCegarLoop]: 243 mSDtfsCounter, 432 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:27,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [432 Valid, 1465 Invalid, 338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:20:28,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84372 states. [2022-03-03 17:20:29,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84372 to 44856. [2022-03-03 17:20:29,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44856 states, 44855 states have (on average 4.534500055735147) internal successors, (203395), 44855 states have internal predecessors, (203395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:29,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44856 states to 44856 states and 203395 transitions. [2022-03-03 17:20:29,911 INFO L78 Accepts]: Start accepts. Automaton has 44856 states and 203395 transitions. Word has length 90 [2022-03-03 17:20:29,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:29,912 INFO L470 AbstractCegarLoop]: Abstraction has 44856 states and 203395 transitions. [2022-03-03 17:20:29,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 10.88888888888889) internal successors, (98), 9 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:29,912 INFO L276 IsEmpty]: Start isEmpty. Operand 44856 states and 203395 transitions. [2022-03-03 17:20:30,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-03 17:20:30,310 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:30,311 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:30,331 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-03 17:20:30,527 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:20:30,527 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:20:30,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:30,528 INFO L85 PathProgramCache]: Analyzing trace with hash -1402653696, now seen corresponding path program 5 times [2022-03-03 17:20:30,528 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:30,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [83015380] [2022-03-03 17:20:30,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:30,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:30,604 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:30,604 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:30,604 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [83015380] [2022-03-03 17:20:30,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [83015380] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:20:30,604 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:20:30,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-03 17:20:30,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538994976] [2022-03-03 17:20:30,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:20:30,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-03 17:20:30,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:30,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-03 17:20:30,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-03 17:20:30,605 INFO L87 Difference]: Start difference. First operand 44856 states and 203395 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:31,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:31,871 INFO L93 Difference]: Finished difference Result 85380 states and 383203 transitions. [2022-03-03 17:20:31,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 17:20:31,871 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-03-03 17:20:31,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:32,294 INFO L225 Difference]: With dead ends: 85380 [2022-03-03 17:20:32,294 INFO L226 Difference]: Without dead ends: 84282 [2022-03-03 17:20:32,294 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:20:32,295 INFO L933 BasicCegarLoop]: 194 mSDtfsCounter, 193 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:32,295 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [193 Valid, 637 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:20:32,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84282 states. [2022-03-03 17:20:33,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84282 to 44130. [2022-03-03 17:20:34,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44130 states, 44129 states have (on average 4.536540596886401) internal successors, (200193), 44129 states have internal predecessors, (200193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:34,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44130 states to 44130 states and 200193 transitions. [2022-03-03 17:20:34,447 INFO L78 Accepts]: Start accepts. Automaton has 44130 states and 200193 transitions. Word has length 90 [2022-03-03 17:20:34,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:34,448 INFO L470 AbstractCegarLoop]: Abstraction has 44130 states and 200193 transitions. [2022-03-03 17:20:34,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:34,448 INFO L276 IsEmpty]: Start isEmpty. Operand 44130 states and 200193 transitions. [2022-03-03 17:20:34,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-03 17:20:34,584 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:34,584 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:34,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-03-03 17:20:34,585 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:20:34,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:34,585 INFO L85 PathProgramCache]: Analyzing trace with hash -28461456, now seen corresponding path program 4 times [2022-03-03 17:20:34,585 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:34,585 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004645434] [2022-03-03 17:20:34,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:34,585 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:34,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:34,624 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:34,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:34,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004645434] [2022-03-03 17:20:34,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004645434] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:20:34,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990543475] [2022-03-03 17:20:34,624 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-03 17:20:34,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:20:34,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:20:34,625 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:20:34,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-03 17:20:34,701 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-03 17:20:34,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:20:34,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-03 17:20:34,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:20:34,829 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:34,829 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:20:34,959 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:34,959 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990543475] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:20:34,959 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:20:34,959 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2022-03-03 17:20:34,960 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239215032] [2022-03-03 17:20:34,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:20:34,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-03-03 17:20:34,960 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:34,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-03-03 17:20:34,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2022-03-03 17:20:34,961 INFO L87 Difference]: Start difference. First operand 44130 states and 200193 transitions. Second operand has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:36,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:36,153 INFO L93 Difference]: Finished difference Result 97134 states and 437211 transitions. [2022-03-03 17:20:36,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-03 17:20:36,153 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-03-03 17:20:36,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:36,893 INFO L225 Difference]: With dead ends: 97134 [2022-03-03 17:20:36,893 INFO L226 Difference]: Without dead ends: 97134 [2022-03-03 17:20:36,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:20:36,894 INFO L933 BasicCegarLoop]: 232 mSDtfsCounter, 526 mSDsluCounter, 1355 mSDsCounter, 0 mSdLazyCounter, 344 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 526 SdHoareTripleChecker+Valid, 1421 SdHoareTripleChecker+Invalid, 353 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 344 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:36,894 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [526 Valid, 1421 Invalid, 353 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 344 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-03-03 17:20:37,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97134 states. [2022-03-03 17:20:38,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97134 to 41100. [2022-03-03 17:20:38,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41100 states, 41099 states have (on average 4.532884011776442) internal successors, (186297), 41099 states have internal predecessors, (186297), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:38,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41100 states to 41100 states and 186297 transitions. [2022-03-03 17:20:38,923 INFO L78 Accepts]: Start accepts. Automaton has 41100 states and 186297 transitions. Word has length 90 [2022-03-03 17:20:38,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:38,924 INFO L470 AbstractCegarLoop]: Abstraction has 41100 states and 186297 transitions. [2022-03-03 17:20:38,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 10.090909090909092) internal successors, (111), 11 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:38,924 INFO L276 IsEmpty]: Start isEmpty. Operand 41100 states and 186297 transitions. [2022-03-03 17:20:39,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-03-03 17:20:39,281 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:39,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:39,298 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-03 17:20:39,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:20:39,491 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:20:39,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:39,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1025533784, now seen corresponding path program 6 times [2022-03-03 17:20:39,492 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:39,492 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1390720654] [2022-03-03 17:20:39,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:39,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:39,535 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:39,536 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:39,536 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1390720654] [2022-03-03 17:20:39,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1390720654] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:20:39,536 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:20:39,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-03-03 17:20:39,538 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062181330] [2022-03-03 17:20:39,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:20:39,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-03-03 17:20:39,538 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:39,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-03-03 17:20:39,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:20:39,538 INFO L87 Difference]: Start difference. First operand 41100 states and 186297 transitions. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:40,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:40,019 INFO L93 Difference]: Finished difference Result 59352 states and 269712 transitions. [2022-03-03 17:20:40,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 17:20:40,019 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 90 [2022-03-03 17:20:40,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:40,536 INFO L225 Difference]: With dead ends: 59352 [2022-03-03 17:20:40,536 INFO L226 Difference]: Without dead ends: 59352 [2022-03-03 17:20:40,536 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2022-03-03 17:20:40,537 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 143 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:40,537 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [143 Valid, 637 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:20:40,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59352 states. [2022-03-03 17:20:41,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59352 to 39984. [2022-03-03 17:20:41,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39984 states, 39983 states have (on average 4.53290148313033) internal successors, (181239), 39983 states have internal predecessors, (181239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:42,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39984 states to 39984 states and 181239 transitions. [2022-03-03 17:20:42,156 INFO L78 Accepts]: Start accepts. Automaton has 39984 states and 181239 transitions. Word has length 90 [2022-03-03 17:20:42,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:42,157 INFO L470 AbstractCegarLoop]: Abstraction has 39984 states and 181239 transitions. [2022-03-03 17:20:42,157 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:42,157 INFO L276 IsEmpty]: Start isEmpty. Operand 39984 states and 181239 transitions. [2022-03-03 17:20:42,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-03 17:20:42,260 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:42,260 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:42,260 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-03-03 17:20:42,260 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:20:42,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:42,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1132110636, now seen corresponding path program 1 times [2022-03-03 17:20:42,261 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:42,261 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547756232] [2022-03-03 17:20:42,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:42,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:42,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:42,340 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:42,340 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:42,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547756232] [2022-03-03 17:20:42,340 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547756232] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:20:42,340 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [292000078] [2022-03-03 17:20:42,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:42,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:20:42,341 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:20:42,342 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:20:42,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-03 17:20:42,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:42,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-03 17:20:42,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:20:42,772 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:42,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:20:43,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:43,052 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [292000078] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:20:43,052 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:20:43,053 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 10 [2022-03-03 17:20:43,053 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807898136] [2022-03-03 17:20:43,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:20:43,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:20:43,053 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:43,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:20:43,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:20:43,054 INFO L87 Difference]: Start difference. First operand 39984 states and 181239 transitions. Second operand has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:45,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:45,174 INFO L93 Difference]: Finished difference Result 192458 states and 868590 transitions. [2022-03-03 17:20:45,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:20:45,174 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-03-03 17:20:45,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:20:46,509 INFO L225 Difference]: With dead ends: 192458 [2022-03-03 17:20:46,510 INFO L226 Difference]: Without dead ends: 185759 [2022-03-03 17:20:46,510 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 185 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:20:46,510 INFO L933 BasicCegarLoop]: 224 mSDtfsCounter, 433 mSDsluCounter, 1102 mSDsCounter, 0 mSdLazyCounter, 230 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 1226 SdHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 230 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:20:46,510 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [433 Valid, 1226 Invalid, 243 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 230 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:20:46,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185759 states. [2022-03-03 17:20:51,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185759 to 161708. [2022-03-03 17:20:52,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161708 states, 161707 states have (on average 4.584050164804244) internal successors, (741273), 161707 states have internal predecessors, (741273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:53,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161708 states to 161708 states and 741273 transitions. [2022-03-03 17:20:53,590 INFO L78 Accepts]: Start accepts. Automaton has 161708 states and 741273 transitions. Word has length 95 [2022-03-03 17:20:53,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:20:53,590 INFO L470 AbstractCegarLoop]: Abstraction has 161708 states and 741273 transitions. [2022-03-03 17:20:53,590 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:53,590 INFO L276 IsEmpty]: Start isEmpty. Operand 161708 states and 741273 transitions. [2022-03-03 17:20:54,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2022-03-03 17:20:54,397 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:20:54,397 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:20:54,413 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-03 17:20:54,613 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,SelfDestructingSolverStorable12 [2022-03-03 17:20:54,613 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:20:54,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:20:54,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2145070608, now seen corresponding path program 2 times [2022-03-03 17:20:54,623 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:20:54,623 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983554781] [2022-03-03 17:20:54,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:20:54,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:20:54,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:20:54,717 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:54,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:20:54,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983554781] [2022-03-03 17:20:54,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983554781] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:20:54,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697540760] [2022-03-03 17:20:54,717 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-03 17:20:54,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:20:54,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:20:54,718 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:20:54,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-03 17:20:54,793 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-03 17:20:54,794 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:20:54,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 13 conjunts are in the unsatisfiable core [2022-03-03 17:20:54,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:20:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:20:55,176 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:20:55,485 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-03-03 17:20:55,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697540760] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:20:55,485 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:20:55,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 7] total 10 [2022-03-03 17:20:55,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040790072] [2022-03-03 17:20:55,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:20:55,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-03-03 17:20:55,486 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:20:55,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-03-03 17:20:55,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-03-03 17:20:55,486 INFO L87 Difference]: Start difference. First operand 161708 states and 741273 transitions. Second operand has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:20:59,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:20:59,974 INFO L93 Difference]: Finished difference Result 316548 states and 1439950 transitions. [2022-03-03 17:20:59,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-03-03 17:20:59,974 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 95 [2022-03-03 17:20:59,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:21:02,620 INFO L225 Difference]: With dead ends: 316548 [2022-03-03 17:21:02,620 INFO L226 Difference]: Without dead ends: 309297 [2022-03-03 17:21:02,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 185 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:21:02,621 INFO L933 BasicCegarLoop]: 216 mSDtfsCounter, 362 mSDsluCounter, 1394 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 1473 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-03-03 17:21:02,621 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [362 Valid, 1473 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-03-03 17:21:03,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309297 states. [2022-03-03 17:21:12,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309297 to 254433. [2022-03-03 17:21:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254433 states, 254432 states have (on average 4.622622154445982) internal successors, (1176143), 254432 states have internal predecessors, (1176143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:15,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254433 states to 254433 states and 1176143 transitions. [2022-03-03 17:21:15,675 INFO L78 Accepts]: Start accepts. Automaton has 254433 states and 1176143 transitions. Word has length 95 [2022-03-03 17:21:15,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:21:15,676 INFO L470 AbstractCegarLoop]: Abstraction has 254433 states and 1176143 transitions. [2022-03-03 17:21:15,676 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.5) internal successors, (175), 10 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:15,676 INFO L276 IsEmpty]: Start isEmpty. Operand 254433 states and 1176143 transitions. [2022-03-03 17:21:16,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-03 17:21:16,856 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:21:16,856 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 17:21:16,874 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-03 17:21:17,071 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:21:17,072 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:21:17,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:21:17,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1325794030, now seen corresponding path program 1 times [2022-03-03 17:21:17,072 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:21:17,072 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126309433] [2022-03-03 17:21:17,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:21:17,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:21:17,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:21:17,136 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-03 17:21:17,136 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:21:17,136 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126309433] [2022-03-03 17:21:17,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126309433] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 17:21:17,136 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 17:21:17,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-03 17:21:17,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485262467] [2022-03-03 17:21:17,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 17:21:17,137 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-03 17:21:17,137 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:21:17,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-03 17:21:17,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-03-03 17:21:17,138 INFO L87 Difference]: Start difference. First operand 254433 states and 1176143 transitions. Second operand has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:23,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 17:21:23,734 INFO L93 Difference]: Finished difference Result 433297 states and 2000385 transitions. [2022-03-03 17:21:23,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-03 17:21:23,735 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 100 [2022-03-03 17:21:23,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 17:21:28,538 INFO L225 Difference]: With dead ends: 433297 [2022-03-03 17:21:28,538 INFO L226 Difference]: Without dead ends: 432385 [2022-03-03 17:21:28,539 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-03-03 17:21:28,539 INFO L933 BasicCegarLoop]: 193 mSDtfsCounter, 183 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-03 17:21:28,539 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [183 Valid, 452 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-03 17:21:29,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432385 states. [2022-03-03 17:21:41,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432385 to 270810. [2022-03-03 17:21:42,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270810 states, 270809 states have (on average 4.616194439623499) internal successors, (1250107), 270809 states have internal predecessors, (1250107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:45,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270810 states to 270810 states and 1250107 transitions. [2022-03-03 17:21:45,354 INFO L78 Accepts]: Start accepts. Automaton has 270810 states and 1250107 transitions. Word has length 100 [2022-03-03 17:21:45,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 17:21:45,354 INFO L470 AbstractCegarLoop]: Abstraction has 270810 states and 1250107 transitions. [2022-03-03 17:21:45,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.0) internal successors, (100), 5 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-03 17:21:45,354 INFO L276 IsEmpty]: Start isEmpty. Operand 270810 states and 1250107 transitions. [2022-03-03 17:21:47,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2022-03-03 17:21:47,389 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 17:21:47,389 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] [2022-03-03 17:21:47,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-03-03 17:21:47,389 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-03 17:21:47,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 17:21:47,390 INFO L85 PathProgramCache]: Analyzing trace with hash -187785154, now seen corresponding path program 3 times [2022-03-03 17:21:47,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 17:21:47,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293266173] [2022-03-03 17:21:47,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 17:21:47,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 17:21:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 17:21:47,497 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:21:47,497 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 17:21:47,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293266173] [2022-03-03 17:21:47,497 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293266173] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-03 17:21:47,497 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [315977247] [2022-03-03 17:21:47,497 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-03 17:21:47,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-03 17:21:47,497 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 17:21:47,516 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-03 17:21:47,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-03 17:21:47,981 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-03-03 17:21:47,981 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-03 17:21:47,982 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 8 conjunts are in the unsatisfiable core [2022-03-03 17:21:47,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-03 17:21:48,212 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:21:48,212 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-03 17:21:48,328 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 17:21:48,329 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [315977247] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-03 17:21:48,329 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-03 17:21:48,329 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-03-03 17:21:48,329 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131279257] [2022-03-03 17:21:48,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-03 17:21:48,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-03-03 17:21:48,330 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 17:21:48,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-03-03 17:21:48,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2022-03-03 17:21:48,330 INFO L87 Difference]: Start difference. First operand 270810 states and 1250107 transitions. Second operand has 16 states, 16 states have (on average 7.3125) internal successors, (117), 16 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)