/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-16 01:18:07,814 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-16 01:18:07,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-16 01:18:07,845 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-16 01:18:07,845 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-16 01:18:07,846 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-16 01:18:07,847 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-16 01:18:07,849 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-16 01:18:07,851 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-16 01:18:07,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-16 01:18:07,853 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-16 01:18:07,854 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-16 01:18:07,854 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-16 01:18:07,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-16 01:18:07,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-16 01:18:07,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-16 01:18:07,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-16 01:18:07,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-16 01:18:07,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-16 01:18:07,864 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-16 01:18:07,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-16 01:18:07,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-16 01:18:07,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-16 01:18:07,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-16 01:18:07,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-16 01:18:07,872 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-16 01:18:07,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-16 01:18:07,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-16 01:18:07,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-16 01:18:07,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-16 01:18:07,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-16 01:18:07,876 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-16 01:18:07,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-16 01:18:07,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-16 01:18:07,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-16 01:18:07,879 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-16 01:18:07,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-16 01:18:07,880 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-16 01:18:07,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-16 01:18:07,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-16 01:18:07,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-16 01:18:07,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-16 01:18:07,915 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-16 01:18:07,915 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-16 01:18:07,917 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-16 01:18:07,917 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-16 01:18:07,917 INFO L138 SettingsManager]: * Use SBE=true [2020-09-16 01:18:07,918 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-16 01:18:07,918 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-16 01:18:07,918 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-16 01:18:07,918 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-16 01:18:07,918 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-16 01:18:07,918 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-16 01:18:07,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-16 01:18:07,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-16 01:18:07,919 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-16 01:18:07,919 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-16 01:18:07,919 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-16 01:18:07,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-16 01:18:07,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-16 01:18:07,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-16 01:18:07,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-16 01:18:07,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-16 01:18:07,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 01:18:07,921 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-16 01:18:07,921 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-16 01:18:07,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-16 01:18:07,922 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-16 01:18:07,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-16 01:18:07,922 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-16 01:18:07,922 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-16 01:18:07,922 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-16 01:18:07,923 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-16 01:18:08,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-16 01:18:08,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-16 01:18:08,402 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-16 01:18:08,404 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-16 01:18:08,404 INFO L275 PluginConnector]: CDTParser initialized [2020-09-16 01:18:08,407 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2020-09-16 01:18:08,500 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28ab4596c/2f3295a1a93f4e039a8b23029f542511/FLAG45c83d69e [2020-09-16 01:18:09,301 INFO L306 CDTParser]: Found 1 translation units. [2020-09-16 01:18:09,302 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-wmm/thin002_pso.oepc.i [2020-09-16 01:18:09,326 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28ab4596c/2f3295a1a93f4e039a8b23029f542511/FLAG45c83d69e [2020-09-16 01:18:09,345 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/28ab4596c/2f3295a1a93f4e039a8b23029f542511 [2020-09-16 01:18:09,360 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-16 01:18:09,365 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-16 01:18:09,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-16 01:18:09,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-16 01:18:09,370 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-16 01:18:09,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:18:09" (1/1) ... [2020-09-16 01:18:09,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@297cf83c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:18:09, skipping insertion in model container [2020-09-16 01:18:09,376 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 01:18:09" (1/1) ... [2020-09-16 01:18:09,386 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-16 01:18:09,438 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-16 01:18:09,921 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 01:18:09,937 INFO L203 MainTranslator]: Completed pre-run [2020-09-16 01:18:10,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-16 01:18:10,096 INFO L208 MainTranslator]: Completed translation [2020-09-16 01:18:10,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:18:10 WrapperNode [2020-09-16 01:18:10,097 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-16 01:18:10,098 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-16 01:18:10,098 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-16 01:18:10,098 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-16 01:18:10,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:18:10" (1/1) ... [2020-09-16 01:18:10,136 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:18:10" (1/1) ... [2020-09-16 01:18:10,165 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-16 01:18:10,166 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-16 01:18:10,166 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-16 01:18:10,166 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-16 01:18:10,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:18:10" (1/1) ... [2020-09-16 01:18:10,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:18:10" (1/1) ... [2020-09-16 01:18:10,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:18:10" (1/1) ... [2020-09-16 01:18:10,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:18:10" (1/1) ... [2020-09-16 01:18:10,189 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:18:10" (1/1) ... [2020-09-16 01:18:10,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:18:10" (1/1) ... [2020-09-16 01:18:10,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:18:10" (1/1) ... [2020-09-16 01:18:10,199 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-16 01:18:10,200 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-16 01:18:10,200 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-16 01:18:10,200 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-16 01:18:10,201 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:18:10" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-16 01:18:10,296 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-16 01:18:10,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-16 01:18:10,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-16 01:18:10,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-16 01:18:10,297 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-09-16 01:18:10,297 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-09-16 01:18:10,298 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-09-16 01:18:10,298 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-09-16 01:18:10,298 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-09-16 01:18:10,298 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-09-16 01:18:10,298 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2020-09-16 01:18:10,299 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2020-09-16 01:18:10,299 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-16 01:18:10,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-16 01:18:10,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-16 01:18:10,302 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-16 01:18:10,697 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-16 01:18:10,698 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-09-16 01:18:10,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:18:10 BoogieIcfgContainer [2020-09-16 01:18:10,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-16 01:18:10,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-16 01:18:10,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-16 01:18:10,719 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-16 01:18:10,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 01:18:09" (1/3) ... [2020-09-16 01:18:10,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed278ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:18:10, skipping insertion in model container [2020-09-16 01:18:10,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 01:18:10" (2/3) ... [2020-09-16 01:18:10,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ed278ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 01:18:10, skipping insertion in model container [2020-09-16 01:18:10,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 01:18:10" (3/3) ... [2020-09-16 01:18:10,725 INFO L109 eAbstractionObserver]: Analyzing ICFG thin002_pso.oepc.i [2020-09-16 01:18:10,737 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-16 01:18:10,737 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-16 01:18:10,751 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-16 01:18:10,752 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-16 01:18:10,788 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,788 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,788 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,789 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,789 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,790 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,790 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,791 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,791 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,791 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,792 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,792 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,793 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,793 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,794 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,794 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,795 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,795 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,795 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,796 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,800 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,801 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,801 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,812 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,812 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,812 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,813 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,815 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,816 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,818 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,819 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,819 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,819 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-16 01:18:10,841 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-16 01:18:10,865 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-16 01:18:10,866 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-16 01:18:10,866 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-16 01:18:10,866 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-16 01:18:10,866 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-16 01:18:10,866 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-16 01:18:10,866 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-16 01:18:10,866 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-16 01:18:10,883 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 86 transitions, 192 flow [2020-09-16 01:18:10,886 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-09-16 01:18:10,958 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-09-16 01:18:10,958 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 01:18:10,970 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-09-16 01:18:10,973 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 97 places, 86 transitions, 192 flow [2020-09-16 01:18:11,002 INFO L129 PetriNetUnfolder]: 2/82 cut-off events. [2020-09-16 01:18:11,002 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-16 01:18:11,003 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 69. Up to 2 conditions per place. [2020-09-16 01:18:11,006 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2016 [2020-09-16 01:18:11,007 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-16 01:18:12,527 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2020-09-16 01:18:12,602 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4485 [2020-09-16 01:18:12,602 INFO L214 etLargeBlockEncoding]: Total number of compositions: 67 [2020-09-16 01:18:12,607 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 29 transitions, 78 flow [2020-09-16 01:18:12,719 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1450 states. [2020-09-16 01:18:12,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1450 states. [2020-09-16 01:18:12,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-16 01:18:12,735 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:18:12,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:18:12,737 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:18:12,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:18:12,745 INFO L82 PathProgramCache]: Analyzing trace with hash 546901279, now seen corresponding path program 1 times [2020-09-16 01:18:12,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:18:12,767 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995820706] [2020-09-16 01:18:12,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:18:12,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:18:12,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:18:12,990 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995820706] [2020-09-16 01:18:12,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:18:12,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:18:12,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [932110103] [2020-09-16 01:18:12,994 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:18:12,997 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:18:13,012 INFO L274 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-09-16 01:18:13,012 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:18:13,015 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:18:13,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-16 01:18:13,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:18:13,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-16 01:18:13,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-16 01:18:13,037 INFO L87 Difference]: Start difference. First operand 1450 states. Second operand 2 states. [2020-09-16 01:18:13,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:18:13,099 INFO L93 Difference]: Finished difference Result 1450 states and 5376 transitions. [2020-09-16 01:18:13,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-16 01:18:13,101 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-09-16 01:18:13,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:18:13,147 INFO L225 Difference]: With dead ends: 1450 [2020-09-16 01:18:13,147 INFO L226 Difference]: Without dead ends: 1194 [2020-09-16 01:18:13,149 INFO L675 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 [2020-09-16 01:18:13,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1194 states. [2020-09-16 01:18:13,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1194 to 1194. [2020-09-16 01:18:13,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-09-16 01:18:13,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 4352 transitions. [2020-09-16 01:18:13,305 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 4352 transitions. Word has length 10 [2020-09-16 01:18:13,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:18:13,306 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 4352 transitions. [2020-09-16 01:18:13,306 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-16 01:18:13,307 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 4352 transitions. [2020-09-16 01:18:13,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-16 01:18:13,313 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:18:13,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:18:13,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-16 01:18:13,314 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:18:13,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:18:13,314 INFO L82 PathProgramCache]: Analyzing trace with hash -225951647, now seen corresponding path program 1 times [2020-09-16 01:18:13,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:18:13,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852319050] [2020-09-16 01:18:13,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:18:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:18:13,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:18:13,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852319050] [2020-09-16 01:18:13,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:18:13,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:18:13,538 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [694645245] [2020-09-16 01:18:13,538 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:18:13,540 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:18:13,541 INFO L274 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-09-16 01:18:13,542 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:18:13,542 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:18:13,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 01:18:13,544 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:18:13,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 01:18:13,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 01:18:13,545 INFO L87 Difference]: Start difference. First operand 1194 states and 4352 transitions. Second operand 4 states. [2020-09-16 01:18:13,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:18:13,598 INFO L93 Difference]: Finished difference Result 1322 states and 4640 transitions. [2020-09-16 01:18:13,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 01:18:13,599 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-09-16 01:18:13,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:18:13,609 INFO L225 Difference]: With dead ends: 1322 [2020-09-16 01:18:13,609 INFO L226 Difference]: Without dead ends: 1066 [2020-09-16 01:18:13,610 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:18:13,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-09-16 01:18:13,645 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 1066. [2020-09-16 01:18:13,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1066 states. [2020-09-16 01:18:13,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1066 states to 1066 states and 3808 transitions. [2020-09-16 01:18:13,652 INFO L78 Accepts]: Start accepts. Automaton has 1066 states and 3808 transitions. Word has length 11 [2020-09-16 01:18:13,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:18:13,653 INFO L479 AbstractCegarLoop]: Abstraction has 1066 states and 3808 transitions. [2020-09-16 01:18:13,653 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 01:18:13,653 INFO L276 IsEmpty]: Start isEmpty. Operand 1066 states and 3808 transitions. [2020-09-16 01:18:13,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-16 01:18:13,656 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:18:13,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:18:13,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-16 01:18:13,656 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:18:13,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:18:13,657 INFO L82 PathProgramCache]: Analyzing trace with hash -426404145, now seen corresponding path program 1 times [2020-09-16 01:18:13,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:18:13,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429271178] [2020-09-16 01:18:13,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:18:13,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:18:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:18:13,744 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429271178] [2020-09-16 01:18:13,744 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:18:13,744 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:18:13,745 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1449744288] [2020-09-16 01:18:13,745 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:18:13,746 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:18:13,750 INFO L274 McrAutomatonBuilder]: Finished intersection with 20 states and 26 transitions. [2020-09-16 01:18:13,751 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:18:13,862 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:18:13,862 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 01:18:13,863 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:18:13,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 01:18:13,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 01:18:13,863 INFO L87 Difference]: Start difference. First operand 1066 states and 3808 transitions. Second operand 4 states. [2020-09-16 01:18:13,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:18:13,903 INFO L93 Difference]: Finished difference Result 1162 states and 4016 transitions. [2020-09-16 01:18:13,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 01:18:13,903 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-16 01:18:13,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:18:13,912 INFO L225 Difference]: With dead ends: 1162 [2020-09-16 01:18:13,912 INFO L226 Difference]: Without dead ends: 970 [2020-09-16 01:18:13,912 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:18:13,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 970 states. [2020-09-16 01:18:13,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 970 to 970. [2020-09-16 01:18:13,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 970 states. [2020-09-16 01:18:13,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 970 states to 970 states and 3408 transitions. [2020-09-16 01:18:13,951 INFO L78 Accepts]: Start accepts. Automaton has 970 states and 3408 transitions. Word has length 12 [2020-09-16 01:18:13,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:18:13,952 INFO L479 AbstractCegarLoop]: Abstraction has 970 states and 3408 transitions. [2020-09-16 01:18:13,952 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 01:18:13,952 INFO L276 IsEmpty]: Start isEmpty. Operand 970 states and 3408 transitions. [2020-09-16 01:18:13,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-16 01:18:13,958 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:18:13,958 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:18:13,958 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-16 01:18:13,959 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:18:13,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:18:13,959 INFO L82 PathProgramCache]: Analyzing trace with hash -333650641, now seen corresponding path program 1 times [2020-09-16 01:18:13,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:18:13,961 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609966542] [2020-09-16 01:18:13,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:18:14,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:18:14,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:18:14,115 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609966542] [2020-09-16 01:18:14,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:18:14,116 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:18:14,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [16242313] [2020-09-16 01:18:14,116 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:18:14,121 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:18:14,125 INFO L274 McrAutomatonBuilder]: Finished intersection with 28 states and 44 transitions. [2020-09-16 01:18:14,125 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:18:14,229 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:18:14,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:18:14,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:18:14,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:18:14,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:18:14,230 INFO L87 Difference]: Start difference. First operand 970 states and 3408 transitions. Second operand 5 states. [2020-09-16 01:18:14,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:18:14,286 INFO L93 Difference]: Finished difference Result 1210 states and 4120 transitions. [2020-09-16 01:18:14,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 01:18:14,287 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-16 01:18:14,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:18:14,293 INFO L225 Difference]: With dead ends: 1210 [2020-09-16 01:18:14,293 INFO L226 Difference]: Without dead ends: 586 [2020-09-16 01:18:14,294 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-16 01:18:14,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 586 states. [2020-09-16 01:18:14,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 586 to 586. [2020-09-16 01:18:14,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-09-16 01:18:14,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 1872 transitions. [2020-09-16 01:18:14,317 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 1872 transitions. Word has length 13 [2020-09-16 01:18:14,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:18:14,317 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 1872 transitions. [2020-09-16 01:18:14,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:18:14,317 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 1872 transitions. [2020-09-16 01:18:14,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-09-16 01:18:14,319 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:18:14,319 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:18:14,319 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-16 01:18:14,319 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:18:14,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:18:14,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1296364861, now seen corresponding path program 1 times [2020-09-16 01:18:14,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:18:14,320 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294664207] [2020-09-16 01:18:14,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:18:14,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:18:14,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:18:14,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294664207] [2020-09-16 01:18:14,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:18:14,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-16 01:18:14,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1375913729] [2020-09-16 01:18:14,394 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:18:14,397 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:18:14,405 INFO L274 McrAutomatonBuilder]: Finished intersection with 52 states and 100 transitions. [2020-09-16 01:18:14,406 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:18:14,599 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:18:14,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-16 01:18:14,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:18:14,600 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-16 01:18:14,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-16 01:18:14,601 INFO L87 Difference]: Start difference. First operand 586 states and 1872 transitions. Second operand 4 states. [2020-09-16 01:18:14,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:18:14,623 INFO L93 Difference]: Finished difference Result 622 states and 1938 transitions. [2020-09-16 01:18:14,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-16 01:18:14,623 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-09-16 01:18:14,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:18:14,628 INFO L225 Difference]: With dead ends: 622 [2020-09-16 01:18:14,628 INFO L226 Difference]: Without dead ends: 550 [2020-09-16 01:18:14,629 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:18:14,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2020-09-16 01:18:14,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 550. [2020-09-16 01:18:14,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2020-09-16 01:18:14,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 1734 transitions. [2020-09-16 01:18:14,647 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 1734 transitions. Word has length 15 [2020-09-16 01:18:14,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:18:14,648 INFO L479 AbstractCegarLoop]: Abstraction has 550 states and 1734 transitions. [2020-09-16 01:18:14,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-16 01:18:14,648 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 1734 transitions. [2020-09-16 01:18:14,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-16 01:18:14,649 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:18:14,650 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:18:14,650 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-16 01:18:14,650 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:18:14,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:18:14,650 INFO L82 PathProgramCache]: Analyzing trace with hash 1532551202, now seen corresponding path program 1 times [2020-09-16 01:18:14,651 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:18:14,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471524879] [2020-09-16 01:18:14,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:18:14,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:18:14,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:18:14,726 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471524879] [2020-09-16 01:18:14,726 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:18:14,726 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:18:14,727 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1163177842] [2020-09-16 01:18:14,727 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:18:14,729 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:18:14,738 INFO L274 McrAutomatonBuilder]: Finished intersection with 68 states and 144 transitions. [2020-09-16 01:18:14,739 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:18:14,932 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:18:14,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:18:14,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:18:14,933 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:18:14,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:18:14,934 INFO L87 Difference]: Start difference. First operand 550 states and 1734 transitions. Second operand 5 states. [2020-09-16 01:18:14,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:18:14,975 INFO L93 Difference]: Finished difference Result 760 states and 2337 transitions. [2020-09-16 01:18:14,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 01:18:14,976 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-16 01:18:14,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:18:14,978 INFO L225 Difference]: With dead ends: 760 [2020-09-16 01:18:14,979 INFO L226 Difference]: Without dead ends: 322 [2020-09-16 01:18:14,979 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-16 01:18:14,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-09-16 01:18:14,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 322. [2020-09-16 01:18:14,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 322 states. [2020-09-16 01:18:14,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 924 transitions. [2020-09-16 01:18:14,990 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 924 transitions. Word has length 16 [2020-09-16 01:18:14,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:18:14,990 INFO L479 AbstractCegarLoop]: Abstraction has 322 states and 924 transitions. [2020-09-16 01:18:14,990 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:18:14,990 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 924 transitions. [2020-09-16 01:18:14,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-16 01:18:14,991 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:18:14,991 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:18:14,992 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-16 01:18:14,992 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:18:14,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:18:14,992 INFO L82 PathProgramCache]: Analyzing trace with hash -59545778, now seen corresponding path program 1 times [2020-09-16 01:18:14,993 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:18:14,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243558949] [2020-09-16 01:18:14,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:18:15,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:18:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:18:15,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243558949] [2020-09-16 01:18:15,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:18:15,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:18:15,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [975111043] [2020-09-16 01:18:15,067 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:18:15,070 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:18:15,077 INFO L274 McrAutomatonBuilder]: Finished intersection with 56 states and 98 transitions. [2020-09-16 01:18:15,077 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:18:15,180 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:18:15,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:18:15,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:18:15,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:18:15,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:18:15,182 INFO L87 Difference]: Start difference. First operand 322 states and 924 transitions. Second operand 5 states. [2020-09-16 01:18:15,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:18:15,225 INFO L93 Difference]: Finished difference Result 418 states and 1180 transitions. [2020-09-16 01:18:15,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 01:18:15,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-16 01:18:15,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:18:15,227 INFO L225 Difference]: With dead ends: 418 [2020-09-16 01:18:15,228 INFO L226 Difference]: Without dead ends: 148 [2020-09-16 01:18:15,228 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-16 01:18:15,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-09-16 01:18:15,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 148. [2020-09-16 01:18:15,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-16 01:18:15,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 398 transitions. [2020-09-16 01:18:15,235 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 398 transitions. Word has length 17 [2020-09-16 01:18:15,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:18:15,235 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 398 transitions. [2020-09-16 01:18:15,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:18:15,236 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 398 transitions. [2020-09-16 01:18:15,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-09-16 01:18:15,237 INFO L414 BasicCegarLoop]: Found error trace [2020-09-16 01:18:15,237 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-16 01:18:15,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-16 01:18:15,237 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-16 01:18:15,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-16 01:18:15,238 INFO L82 PathProgramCache]: Analyzing trace with hash 355522076, now seen corresponding path program 1 times [2020-09-16 01:18:15,238 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-16 01:18:15,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234523709] [2020-09-16 01:18:15,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-16 01:18:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-16 01:18:15,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-16 01:18:15,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234523709] [2020-09-16 01:18:15,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-16 01:18:15,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-16 01:18:15,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1784110841] [2020-09-16 01:18:15,339 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-16 01:18:15,344 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-16 01:18:15,350 INFO L274 McrAutomatonBuilder]: Finished intersection with 26 states and 32 transitions. [2020-09-16 01:18:15,350 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-16 01:18:15,373 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-16 01:18:15,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-16 01:18:15,373 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-16 01:18:15,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-16 01:18:15,374 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-16 01:18:15,374 INFO L87 Difference]: Start difference. First operand 148 states and 398 transitions. Second operand 5 states. [2020-09-16 01:18:15,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-16 01:18:15,414 INFO L93 Difference]: Finished difference Result 124 states and 322 transitions. [2020-09-16 01:18:15,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-16 01:18:15,415 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 18 [2020-09-16 01:18:15,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-16 01:18:15,415 INFO L225 Difference]: With dead ends: 124 [2020-09-16 01:18:15,416 INFO L226 Difference]: Without dead ends: 0 [2020-09-16 01:18:15,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-09-16 01:18:15,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-16 01:18:15,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-16 01:18:15,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-16 01:18:15,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-16 01:18:15,417 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-09-16 01:18:15,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-16 01:18:15,417 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-16 01:18:15,417 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-16 01:18:15,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-16 01:18:15,418 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-16 01:18:15,418 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-16 01:18:15,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 01:18:15 BasicIcfg [2020-09-16 01:18:15,427 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-16 01:18:15,434 INFO L168 Benchmark]: Toolchain (without parser) took 6068.18 ms. Allocated memory was 140.5 MB in the beginning and 292.0 MB in the end (delta: 151.5 MB). Free memory was 102.0 MB in the beginning and 240.7 MB in the end (delta: -138.7 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-09-16 01:18:15,435 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-16 01:18:15,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 731.46 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 159.3 MB in the end (delta: -58.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2020-09-16 01:18:15,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 67.55 ms. Allocated memory is still 205.0 MB. Free memory was 159.3 MB in the beginning and 157.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-16 01:18:15,440 INFO L168 Benchmark]: Boogie Preprocessor took 33.51 ms. Allocated memory is still 205.0 MB. Free memory was 157.3 MB in the beginning and 155.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-09-16 01:18:15,442 INFO L168 Benchmark]: RCFGBuilder took 505.80 ms. Allocated memory is still 205.0 MB. Free memory was 155.0 MB in the beginning and 130.0 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. [2020-09-16 01:18:15,443 INFO L168 Benchmark]: TraceAbstraction took 4718.47 ms. Allocated memory was 205.0 MB in the beginning and 292.0 MB in the end (delta: 87.0 MB). Free memory was 130.0 MB in the beginning and 240.7 MB in the end (delta: -110.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-16 01:18:15,450 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 140.5 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 731.46 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.4 MB in the beginning and 159.3 MB in the end (delta: -58.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 67.55 ms. Allocated memory is still 205.0 MB. Free memory was 159.3 MB in the beginning and 157.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 33.51 ms. Allocated memory is still 205.0 MB. Free memory was 157.3 MB in the beginning and 155.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 505.80 ms. Allocated memory is still 205.0 MB. Free memory was 155.0 MB in the beginning and 130.0 MB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4718.47 ms. Allocated memory was 205.0 MB in the beginning and 292.0 MB in the end (delta: 87.0 MB). Free memory was 130.0 MB in the beginning and 240.7 MB in the end (delta: -110.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 97 ProgramPointsBefore, 41 ProgramPointsAfterwards, 86 TransitionsBefore, 29 TransitionsAfterwards, 2016 CoEnabledTransitionPairs, 7 FixpointIterations, 17 TrivialSequentialCompositions, 41 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 1 ChoiceCompositions, 1043 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 4485 CheckedPairsTotal, 67 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 232 SDtfs, 236 SDslu, 337 SDs, 0 SdLazy, 57 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 188 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1450occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 112 NumberOfCodeBlocks, 112 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 104 ConstructedInterpolants, 0 QuantifiedInterpolants, 4169 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...