/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/safe005_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c7e336b [2020-10-06 01:00:45,675 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-06 01:00:45,678 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-06 01:00:45,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-06 01:00:45,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-06 01:00:45,704 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-06 01:00:45,705 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-06 01:00:45,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-06 01:00:45,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-06 01:00:45,710 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-06 01:00:45,711 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-06 01:00:45,712 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-06 01:00:45,712 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-06 01:00:45,713 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-06 01:00:45,714 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-06 01:00:45,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-06 01:00:45,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-06 01:00:45,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-06 01:00:45,719 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-06 01:00:45,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-06 01:00:45,722 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-06 01:00:45,724 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-06 01:00:45,725 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-06 01:00:45,726 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-06 01:00:45,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-06 01:00:45,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-06 01:00:45,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-06 01:00:45,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-06 01:00:45,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-06 01:00:45,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-06 01:00:45,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-06 01:00:45,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-06 01:00:45,733 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-06 01:00:45,734 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-06 01:00:45,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-06 01:00:45,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-06 01:00:45,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-06 01:00:45,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-06 01:00:45,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-06 01:00:45,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-06 01:00:45,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-06 01:00:45,739 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-10-06 01:00:45,762 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-06 01:00:45,762 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-06 01:00:45,763 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-06 01:00:45,764 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-06 01:00:45,764 INFO L138 SettingsManager]: * Use SBE=true [2020-10-06 01:00:45,764 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-06 01:00:45,764 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-06 01:00:45,765 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-06 01:00:45,765 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-06 01:00:45,765 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-06 01:00:45,765 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-06 01:00:45,765 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-06 01:00:45,766 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-06 01:00:45,766 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-06 01:00:45,766 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-06 01:00:45,766 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-06 01:00:45,766 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-06 01:00:45,767 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-06 01:00:45,767 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-06 01:00:45,767 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-06 01:00:45,767 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-06 01:00:45,767 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-06 01:00:45,768 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-06 01:00:45,768 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-06 01:00:45,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-06 01:00:45,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-06 01:00:45,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-06 01:00:45,769 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-06 01:00:45,769 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-06 01:00:45,769 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-06 01:00:45,769 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-06 01:00:46,107 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-06 01:00:46,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-06 01:00:46,132 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-06 01:00:46,133 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-06 01:00:46,134 INFO L275 PluginConnector]: CDTParser initialized [2020-10-06 01:00:46,136 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe005_rmo.opt.i [2020-10-06 01:00:46,219 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac3397f88/ce19ca063a044dd9a9b203b143818689/FLAGabd54d877 [2020-10-06 01:00:46,781 INFO L306 CDTParser]: Found 1 translation units. [2020-10-06 01:00:46,782 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe005_rmo.opt.i [2020-10-06 01:00:46,797 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac3397f88/ce19ca063a044dd9a9b203b143818689/FLAGabd54d877 [2020-10-06 01:00:47,028 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ac3397f88/ce19ca063a044dd9a9b203b143818689 [2020-10-06 01:00:47,038 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-06 01:00:47,040 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-06 01:00:47,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-06 01:00:47,043 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-06 01:00:47,047 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-06 01:00:47,048 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:00:47" (1/1) ... [2020-10-06 01:00:47,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69b90d50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:47, skipping insertion in model container [2020-10-06 01:00:47,052 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.10 01:00:47" (1/1) ... [2020-10-06 01:00:47,060 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-06 01:00:47,109 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-06 01:00:47,680 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:00:47,692 INFO L203 MainTranslator]: Completed pre-run [2020-10-06 01:00:47,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-06 01:00:47,831 INFO L208 MainTranslator]: Completed translation [2020-10-06 01:00:47,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:47 WrapperNode [2020-10-06 01:00:47,832 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-06 01:00:47,833 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-06 01:00:47,833 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-06 01:00:47,833 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-06 01:00:47,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:47" (1/1) ... [2020-10-06 01:00:47,862 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:47" (1/1) ... [2020-10-06 01:00:47,903 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-06 01:00:47,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-06 01:00:47,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-06 01:00:47,904 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-06 01:00:47,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:47" (1/1) ... [2020-10-06 01:00:47,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:47" (1/1) ... [2020-10-06 01:00:47,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:47" (1/1) ... [2020-10-06 01:00:47,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:47" (1/1) ... [2020-10-06 01:00:47,929 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:47" (1/1) ... [2020-10-06 01:00:47,933 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:47" (1/1) ... [2020-10-06 01:00:47,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:47" (1/1) ... [2020-10-06 01:00:47,951 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-06 01:00:47,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-06 01:00:47,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-06 01:00:47,952 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-06 01:00:47,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-10-06 01:00:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-06 01:00:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-06 01:00:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-06 01:00:48,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-06 01:00:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-06 01:00:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-06 01:00:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-06 01:00:48,017 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-06 01:00:48,017 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-06 01:00:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-06 01:00:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-06 01:00:48,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-06 01:00:48,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-06 01:00:48,020 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-06 01:00:49,908 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-06 01:00:49,908 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-06 01:00:49,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:00:49 BoogieIcfgContainer [2020-10-06 01:00:49,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-06 01:00:49,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-06 01:00:49,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-06 01:00:49,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-06 01:00:49,915 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.10 01:00:47" (1/3) ... [2020-10-06 01:00:49,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e14d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:00:49, skipping insertion in model container [2020-10-06 01:00:49,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.10 01:00:47" (2/3) ... [2020-10-06 01:00:49,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e14d52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.10 01:00:49, skipping insertion in model container [2020-10-06 01:00:49,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.10 01:00:49" (3/3) ... [2020-10-06 01:00:49,919 INFO L109 eAbstractionObserver]: Analyzing ICFG safe005_rmo.opt.i [2020-10-06 01:00:49,929 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-06 01:00:49,929 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-06 01:00:49,937 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-06 01:00:49,938 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-06 01:00:49,969 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,969 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,969 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,970 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,970 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,970 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,970 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,971 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,971 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,971 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,971 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,971 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,972 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,973 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,973 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,973 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,973 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,973 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,974 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,974 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,974 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,974 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,974 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,974 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,975 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,975 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,975 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,975 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,975 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,975 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,975 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,976 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,976 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,976 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,976 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,976 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,977 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,978 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,979 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,979 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,979 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,980 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,980 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,980 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,980 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,981 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,981 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,982 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,983 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,983 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,983 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,984 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,984 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,985 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,986 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite36| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,990 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,990 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,991 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,991 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,992 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,995 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,996 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,996 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,997 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,997 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,997 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,997 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,997 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,998 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,999 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,999 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,999 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,999 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:49,999 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,000 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,000 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,000 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,000 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,001 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,003 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,003 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,003 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,003 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,004 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,005 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-06 01:00:50,019 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-06 01:00:50,040 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-06 01:00:50,040 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-06 01:00:50,040 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-06 01:00:50,041 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-10-06 01:00:50,041 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-06 01:00:50,041 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-06 01:00:50,041 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-06 01:00:50,041 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-06 01:00:50,056 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 92 transitions, 199 flow [2020-10-06 01:00:50,058 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 199 flow [2020-10-06 01:00:50,104 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-10-06 01:00:50,104 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:00:50,109 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-06 01:00:50,112 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 100 places, 92 transitions, 199 flow [2020-10-06 01:00:50,135 INFO L129 PetriNetUnfolder]: 2/89 cut-off events. [2020-10-06 01:00:50,135 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-06 01:00:50,136 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 89 events. 2/89 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-06 01:00:50,138 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1544 [2020-10-06 01:00:50,139 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-10-06 01:00:50,564 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-06 01:00:52,602 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 87 [2020-10-06 01:00:52,710 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3836 [2020-10-06 01:00:52,710 INFO L214 etLargeBlockEncoding]: Total number of compositions: 77 [2020-10-06 01:00:52,714 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 25 transitions, 65 flow [2020-10-06 01:00:52,779 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 658 states. [2020-10-06 01:00:52,781 INFO L276 IsEmpty]: Start isEmpty. Operand 658 states. [2020-10-06 01:00:52,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-06 01:00:52,791 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:52,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-06 01:00:52,792 INFO L427 AbstractCegarLoop]: === Iteration 1 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:52,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:52,806 INFO L82 PathProgramCache]: Analyzing trace with hash 914642709, now seen corresponding path program 1 times [2020-10-06 01:00:52,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:52,829 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557003238] [2020-10-06 01:00:52,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:52,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:53,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:00:53,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557003238] [2020-10-06 01:00:53,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:53,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:00:53,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1996944885] [2020-10-06 01:00:53,068 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:53,071 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:53,084 INFO L258 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-06 01:00:53,084 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:53,088 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:53,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:00:53,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:53,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:00:53,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:00:53,105 INFO L87 Difference]: Start difference. First operand 658 states. Second operand 3 states. [2020-10-06 01:00:53,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:53,189 INFO L93 Difference]: Finished difference Result 550 states and 1693 transitions. [2020-10-06 01:00:53,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:00:53,192 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-06 01:00:53,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:53,212 INFO L225 Difference]: With dead ends: 550 [2020-10-06 01:00:53,213 INFO L226 Difference]: Without dead ends: 450 [2020-10-06 01:00:53,214 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:00:53,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states. [2020-10-06 01:00:53,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 450. [2020-10-06 01:00:53,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 450 states. [2020-10-06 01:00:53,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 450 states to 450 states and 1358 transitions. [2020-10-06 01:00:53,312 INFO L78 Accepts]: Start accepts. Automaton has 450 states and 1358 transitions. Word has length 5 [2020-10-06 01:00:53,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:53,313 INFO L479 AbstractCegarLoop]: Abstraction has 450 states and 1358 transitions. [2020-10-06 01:00:53,313 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:00:53,313 INFO L276 IsEmpty]: Start isEmpty. Operand 450 states and 1358 transitions. [2020-10-06 01:00:53,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-06 01:00:53,315 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:53,315 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:53,316 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-06 01:00:53,316 INFO L427 AbstractCegarLoop]: === Iteration 2 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:53,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:53,322 INFO L82 PathProgramCache]: Analyzing trace with hash 577618716, now seen corresponding path program 1 times [2020-10-06 01:00:53,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:53,326 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [411060899] [2020-10-06 01:00:53,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:53,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:00:53,424 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [411060899] [2020-10-06 01:00:53,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:53,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:00:53,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1195896158] [2020-10-06 01:00:53,425 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:53,426 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:53,428 INFO L258 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-06 01:00:53,428 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:53,429 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:53,430 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:00:53,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:53,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:00:53,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:00:53,431 INFO L87 Difference]: Start difference. First operand 450 states and 1358 transitions. Second operand 3 states. [2020-10-06 01:00:53,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:53,443 INFO L93 Difference]: Finished difference Result 430 states and 1287 transitions. [2020-10-06 01:00:53,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:00:53,443 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2020-10-06 01:00:53,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:53,449 INFO L225 Difference]: With dead ends: 430 [2020-10-06 01:00:53,449 INFO L226 Difference]: Without dead ends: 430 [2020-10-06 01:00:53,450 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:00:53,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-10-06 01:00:53,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 430. [2020-10-06 01:00:53,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 430 states. [2020-10-06 01:00:53,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1287 transitions. [2020-10-06 01:00:53,506 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1287 transitions. Word has length 9 [2020-10-06 01:00:53,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:53,510 INFO L479 AbstractCegarLoop]: Abstraction has 430 states and 1287 transitions. [2020-10-06 01:00:53,510 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:00:53,510 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1287 transitions. [2020-10-06 01:00:53,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-06 01:00:53,515 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:53,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:53,516 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-06 01:00:53,516 INFO L427 AbstractCegarLoop]: === Iteration 3 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:53,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:53,516 INFO L82 PathProgramCache]: Analyzing trace with hash 726263662, now seen corresponding path program 1 times [2020-10-06 01:00:53,526 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:53,527 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782396156] [2020-10-06 01:00:53,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:53,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:53,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:00:53,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782396156] [2020-10-06 01:00:53,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:53,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:00:53,647 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [294861447] [2020-10-06 01:00:53,647 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:53,649 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:53,651 INFO L258 McrAutomatonBuilder]: Finished intersection with 13 states and 14 transitions. [2020-10-06 01:00:53,651 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:53,678 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:53,678 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:00:53,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:53,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:00:53,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:00:53,679 INFO L87 Difference]: Start difference. First operand 430 states and 1287 transitions. Second operand 4 states. [2020-10-06 01:00:53,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:53,760 INFO L93 Difference]: Finished difference Result 638 states and 1887 transitions. [2020-10-06 01:00:53,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:00:53,761 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-10-06 01:00:53,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:53,766 INFO L225 Difference]: With dead ends: 638 [2020-10-06 01:00:53,766 INFO L226 Difference]: Without dead ends: 398 [2020-10-06 01:00:53,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:00:53,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2020-10-06 01:00:53,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 398. [2020-10-06 01:00:53,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2020-10-06 01:00:53,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 1169 transitions. [2020-10-06 01:00:53,783 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 1169 transitions. Word has length 10 [2020-10-06 01:00:53,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:53,783 INFO L479 AbstractCegarLoop]: Abstraction has 398 states and 1169 transitions. [2020-10-06 01:00:53,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:00:53,783 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 1169 transitions. [2020-10-06 01:00:53,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-06 01:00:53,790 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:53,790 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:53,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-06 01:00:53,790 INFO L427 AbstractCegarLoop]: === Iteration 4 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:53,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:53,791 INFO L82 PathProgramCache]: Analyzing trace with hash -1491369423, now seen corresponding path program 1 times [2020-10-06 01:00:53,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:53,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696822155] [2020-10-06 01:00:53,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:53,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:53,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:00:53,910 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696822155] [2020-10-06 01:00:53,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:53,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:00:53,911 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1650943104] [2020-10-06 01:00:53,911 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:53,913 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:53,916 INFO L258 McrAutomatonBuilder]: Finished intersection with 20 states and 27 transitions. [2020-10-06 01:00:53,916 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:53,965 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:53,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:00:53,966 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:53,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:00:53,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:00:53,967 INFO L87 Difference]: Start difference. First operand 398 states and 1169 transitions. Second operand 4 states. [2020-10-06 01:00:54,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:54,025 INFO L93 Difference]: Finished difference Result 743 states and 2137 transitions. [2020-10-06 01:00:54,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:00:54,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-06 01:00:54,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:54,029 INFO L225 Difference]: With dead ends: 743 [2020-10-06 01:00:54,029 INFO L226 Difference]: Without dead ends: 410 [2020-10-06 01:00:54,030 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:00:54,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2020-10-06 01:00:54,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 302. [2020-10-06 01:00:54,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 302 states. [2020-10-06 01:00:54,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 832 transitions. [2020-10-06 01:00:54,042 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 832 transitions. Word has length 11 [2020-10-06 01:00:54,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:54,042 INFO L479 AbstractCegarLoop]: Abstraction has 302 states and 832 transitions. [2020-10-06 01:00:54,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:00:54,043 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 832 transitions. [2020-10-06 01:00:54,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-06 01:00:54,045 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:54,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:54,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-06 01:00:54,046 INFO L427 AbstractCegarLoop]: === Iteration 5 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:54,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:54,046 INFO L82 PathProgramCache]: Analyzing trace with hash -1776505378, now seen corresponding path program 1 times [2020-10-06 01:00:54,051 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:54,051 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996596810] [2020-10-06 01:00:54,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:54,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:00:54,108 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996596810] [2020-10-06 01:00:54,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:54,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-06 01:00:54,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1706252716] [2020-10-06 01:00:54,109 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:54,111 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:54,114 INFO L258 McrAutomatonBuilder]: Finished intersection with 22 states and 30 transitions. [2020-10-06 01:00:54,114 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:54,122 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:54,122 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:00:54,122 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:54,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:00:54,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:00:54,123 INFO L87 Difference]: Start difference. First operand 302 states and 832 transitions. Second operand 3 states. [2020-10-06 01:00:54,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:54,138 INFO L93 Difference]: Finished difference Result 398 states and 1088 transitions. [2020-10-06 01:00:54,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:00:54,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-06 01:00:54,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:54,140 INFO L225 Difference]: With dead ends: 398 [2020-10-06 01:00:54,140 INFO L226 Difference]: Without dead ends: 209 [2020-10-06 01:00:54,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:00:54,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2020-10-06 01:00:54,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 209. [2020-10-06 01:00:54,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2020-10-06 01:00:54,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 572 transitions. [2020-10-06 01:00:54,149 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 572 transitions. Word has length 12 [2020-10-06 01:00:54,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:54,149 INFO L479 AbstractCegarLoop]: Abstraction has 209 states and 572 transitions. [2020-10-06 01:00:54,150 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:00:54,150 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 572 transitions. [2020-10-06 01:00:54,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-06 01:00:54,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:54,151 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:54,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-06 01:00:54,151 INFO L427 AbstractCegarLoop]: === Iteration 6 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:54,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:54,151 INFO L82 PathProgramCache]: Analyzing trace with hash 762867507, now seen corresponding path program 1 times [2020-10-06 01:00:54,154 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:54,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580612045] [2020-10-06 01:00:54,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:54,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:54,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:00:54,198 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580612045] [2020-10-06 01:00:54,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:54,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-06 01:00:54,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1758126323] [2020-10-06 01:00:54,199 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:54,201 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:54,207 INFO L258 McrAutomatonBuilder]: Finished intersection with 36 states and 59 transitions. [2020-10-06 01:00:54,207 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:54,273 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:54,274 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-06 01:00:54,274 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:54,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-06 01:00:54,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:00:54,275 INFO L87 Difference]: Start difference. First operand 209 states and 572 transitions. Second operand 3 states. [2020-10-06 01:00:54,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:54,281 INFO L93 Difference]: Finished difference Result 200 states and 542 transitions. [2020-10-06 01:00:54,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-06 01:00:54,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 13 [2020-10-06 01:00:54,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:54,284 INFO L225 Difference]: With dead ends: 200 [2020-10-06 01:00:54,284 INFO L226 Difference]: Without dead ends: 200 [2020-10-06 01:00:54,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-06 01:00:54,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2020-10-06 01:00:54,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 200. [2020-10-06 01:00:54,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-06 01:00:54,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 542 transitions. [2020-10-06 01:00:54,293 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 542 transitions. Word has length 13 [2020-10-06 01:00:54,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:54,293 INFO L479 AbstractCegarLoop]: Abstraction has 200 states and 542 transitions. [2020-10-06 01:00:54,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-06 01:00:54,294 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 542 transitions. [2020-10-06 01:00:54,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 01:00:54,294 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:54,295 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:54,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-06 01:00:54,295 INFO L427 AbstractCegarLoop]: === Iteration 7 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:54,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:54,295 INFO L82 PathProgramCache]: Analyzing trace with hash -2120975707, now seen corresponding path program 1 times [2020-10-06 01:00:54,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:54,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447149567] [2020-10-06 01:00:54,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:54,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:00:54,344 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447149567] [2020-10-06 01:00:54,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:54,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:00:54,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [39047003] [2020-10-06 01:00:54,345 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:54,349 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:54,357 INFO L258 McrAutomatonBuilder]: Finished intersection with 39 states and 64 transitions. [2020-10-06 01:00:54,358 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:54,381 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:54,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:00:54,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:54,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:00:54,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:00:54,382 INFO L87 Difference]: Start difference. First operand 200 states and 542 transitions. Second operand 4 states. [2020-10-06 01:00:54,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:54,409 INFO L93 Difference]: Finished difference Result 281 states and 758 transitions. [2020-10-06 01:00:54,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-06 01:00:54,410 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-06 01:00:54,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:54,412 INFO L225 Difference]: With dead ends: 281 [2020-10-06 01:00:54,412 INFO L226 Difference]: Without dead ends: 173 [2020-10-06 01:00:54,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:00:54,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2020-10-06 01:00:54,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2020-10-06 01:00:54,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 173 states. [2020-10-06 01:00:54,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 452 transitions. [2020-10-06 01:00:54,420 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 452 transitions. Word has length 14 [2020-10-06 01:00:54,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:54,420 INFO L479 AbstractCegarLoop]: Abstraction has 173 states and 452 transitions. [2020-10-06 01:00:54,420 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:00:54,420 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 452 transitions. [2020-10-06 01:00:54,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-10-06 01:00:54,421 INFO L414 BasicCegarLoop]: Found error trace [2020-10-06 01:00:54,421 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-06 01:00:54,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-06 01:00:54,422 INFO L427 AbstractCegarLoop]: === Iteration 8 === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, P1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-06 01:00:54,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-06 01:00:54,422 INFO L82 PathProgramCache]: Analyzing trace with hash -2121696457, now seen corresponding path program 2 times [2020-10-06 01:00:54,423 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-06 01:00:54,424 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209518155] [2020-10-06 01:00:54,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-06 01:00:54,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-06 01:00:54,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-06 01:00:54,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209518155] [2020-10-06 01:00:54,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-06 01:00:54,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-06 01:00:54,549 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [630021535] [2020-10-06 01:00:54,549 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-06 01:00:54,551 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-06 01:00:54,559 INFO L258 McrAutomatonBuilder]: Finished intersection with 39 states and 64 transitions. [2020-10-06 01:00:54,560 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-06 01:00:54,593 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:00:54,630 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:00:54,648 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:00:54,668 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:00:54,677 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-06 01:00:54,681 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-06 01:00:54,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-06 01:00:54,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-06 01:00:54,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-06 01:00:54,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-06 01:00:54,682 INFO L87 Difference]: Start difference. First operand 173 states and 452 transitions. Second operand 4 states. [2020-10-06 01:00:54,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-06 01:00:54,709 INFO L93 Difference]: Finished difference Result 102 states and 240 transitions. [2020-10-06 01:00:54,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-06 01:00:54,709 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2020-10-06 01:00:54,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-06 01:00:54,710 INFO L225 Difference]: With dead ends: 102 [2020-10-06 01:00:54,710 INFO L226 Difference]: Without dead ends: 0 [2020-10-06 01:00:54,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-06 01:00:54,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-06 01:00:54,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-06 01:00:54,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-06 01:00:54,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-06 01:00:54,711 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-10-06 01:00:54,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-06 01:00:54,711 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-06 01:00:54,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-06 01:00:54,712 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-06 01:00:54,712 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-06 01:00:54,712 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-06 01:00:54,716 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.10 01:00:54 BasicIcfg [2020-10-06 01:00:54,716 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-06 01:00:54,718 INFO L168 Benchmark]: Toolchain (without parser) took 7678.14 ms. Allocated memory was 137.4 MB in the beginning and 312.0 MB in the end (delta: 174.6 MB). Free memory was 99.3 MB in the beginning and 143.0 MB in the end (delta: -43.8 MB). Peak memory consumption was 130.8 MB. Max. memory is 7.1 GB. [2020-10-06 01:00:54,719 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-06 01:00:54,720 INFO L168 Benchmark]: CACSL2BoogieTranslator took 790.61 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 99.1 MB in the beginning and 154.1 MB in the end (delta: -55.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. [2020-10-06 01:00:54,721 INFO L168 Benchmark]: Boogie Procedure Inliner took 70.54 ms. Allocated memory is still 199.8 MB. Free memory was 154.1 MB in the beginning and 152.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-06 01:00:54,721 INFO L168 Benchmark]: Boogie Preprocessor took 48.35 ms. Allocated memory is still 199.8 MB. Free memory was 152.0 MB in the beginning and 149.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-10-06 01:00:54,722 INFO L168 Benchmark]: RCFGBuilder took 1958.54 ms. Allocated memory was 199.8 MB in the beginning and 254.3 MB in the end (delta: 54.5 MB). Free memory was 149.2 MB in the beginning and 208.0 MB in the end (delta: -58.8 MB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. [2020-10-06 01:00:54,723 INFO L168 Benchmark]: TraceAbstraction took 4804.42 ms. Allocated memory was 254.3 MB in the beginning and 312.0 MB in the end (delta: 57.7 MB). Free memory was 208.0 MB in the beginning and 143.0 MB in the end (delta: 64.9 MB). Peak memory consumption was 122.6 MB. Max. memory is 7.1 GB. [2020-10-06 01:00:54,727 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 118.9 MB in the beginning and 118.7 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 790.61 ms. Allocated memory was 137.4 MB in the beginning and 199.8 MB in the end (delta: 62.4 MB). Free memory was 99.1 MB in the beginning and 154.1 MB in the end (delta: -55.1 MB). Peak memory consumption was 26.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 70.54 ms. Allocated memory is still 199.8 MB. Free memory was 154.1 MB in the beginning and 152.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 48.35 ms. Allocated memory is still 199.8 MB. Free memory was 152.0 MB in the beginning and 149.2 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1958.54 ms. Allocated memory was 199.8 MB in the beginning and 254.3 MB in the end (delta: 54.5 MB). Free memory was 149.2 MB in the beginning and 208.0 MB in the end (delta: -58.8 MB). Peak memory consumption was 105.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4804.42 ms. Allocated memory was 254.3 MB in the beginning and 312.0 MB in the end (delta: 57.7 MB). Free memory was 208.0 MB in the beginning and 143.0 MB in the end (delta: 64.9 MB). Peak memory consumption was 122.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.6s, 100 ProgramPointsBefore, 35 ProgramPointsAfterwards, 92 TransitionsBefore, 25 TransitionsAfterwards, 1544 CoEnabledTransitionPairs, 7 FixpointIterations, 32 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 2 ChoiceCompositions, 779 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 3836 CheckedPairsTotal, 77 TotalNumberOfCompositions - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 8]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 192 SDtfs, 115 SDslu, 189 SDs, 0 SdLazy, 71 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 79 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=658occurred 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 108 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 2220 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...