/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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-array-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 20:18:52,695 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 20:18:52,698 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 20:18:52,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 20:18:52,713 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 20:18:52,714 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 20:18:52,715 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 20:18:52,717 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 20:18:52,718 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 20:18:52,719 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 20:18:52,720 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 20:18:52,721 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 20:18:52,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 20:18:52,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 20:18:52,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 20:18:52,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 20:18:52,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 20:18:52,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 20:18:52,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 20:18:52,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 20:18:52,738 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 20:18:52,739 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 20:18:52,740 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 20:18:52,742 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 20:18:52,744 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 20:18:52,744 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 20:18:52,745 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 20:18:52,747 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 20:18:52,748 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 20:18:52,750 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 20:18:52,750 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 20:18:52,751 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 20:18:52,752 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 20:18:52,753 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 20:18:52,755 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 20:18:52,755 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 20:18:52,756 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 20:18:52,756 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 20:18:52,756 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 20:18:52,757 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 20:18:52,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 20:18:52,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf [2020-04-18 20:18:52,772 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 20:18:52,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 20:18:52,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 20:18:52,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 20:18:52,774 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 20:18:52,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 20:18:52,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 20:18:52,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 20:18:52,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 20:18:52,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 20:18:52,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 20:18:52,776 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 20:18:52,776 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 20:18:52,776 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 20:18:52,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 20:18:52,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 20:18:52,777 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 20:18:52,777 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 20:18:52,777 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 20:18:52,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 20:18:52,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 20:18:52,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 20:18:52,778 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 20:18:52,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 20:18:52,778 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 20:18:52,778 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 20:18:52,778 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 20:18:52,779 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 20:18:52,779 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 20:18:52,779 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 20:18:52,779 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 20:18:53,086 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 20:18:53,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 20:18:53,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 20:18:53,113 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 20:18:53,114 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 20:18:53,115 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-array-1.i [2020-04-18 20:18:53,183 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9202199ee/7f56bd3cceeb4f4391b4b2f0ae5ddcd0/FLAG0b1e4367d [2020-04-18 20:18:53,793 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 20:18:53,795 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-array-1.i [2020-04-18 20:18:53,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9202199ee/7f56bd3cceeb4f4391b4b2f0ae5ddcd0/FLAG0b1e4367d [2020-04-18 20:18:53,976 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9202199ee/7f56bd3cceeb4f4391b4b2f0ae5ddcd0 [2020-04-18 20:18:53,986 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 20:18:54,009 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 20:18:54,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 20:18:54,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 20:18:54,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 20:18:54,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:18:53" (1/1) ... [2020-04-18 20:18:54,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2231c8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:18:54, skipping insertion in model container [2020-04-18 20:18:54,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 08:18:53" (1/1) ... [2020-04-18 20:18:54,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 20:18:54,078 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 20:18:54,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:18:54,635 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 20:18:54,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 20:18:54,761 INFO L208 MainTranslator]: Completed translation [2020-04-18 20:18:54,762 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:18:54 WrapperNode [2020-04-18 20:18:54,762 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 20:18:54,762 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 20:18:54,763 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 20:18:54,763 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 20:18:54,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:18:54" (1/1) ... [2020-04-18 20:18:54,790 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:18:54" (1/1) ... [2020-04-18 20:18:54,813 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 20:18:54,814 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 20:18:54,814 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 20:18:54,814 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 20:18:54,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:18:54" (1/1) ... [2020-04-18 20:18:54,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:18:54" (1/1) ... [2020-04-18 20:18:54,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:18:54" (1/1) ... [2020-04-18 20:18:54,826 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:18:54" (1/1) ... [2020-04-18 20:18:54,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:18:54" (1/1) ... [2020-04-18 20:18:54,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:18:54" (1/1) ... [2020-04-18 20:18:54,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:18:54" (1/1) ... [2020-04-18 20:18:54,843 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 20:18:54,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 20:18:54,843 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 20:18:54,843 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 20:18:54,844 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:18:54" (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 [2020-04-18 20:18:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2020-04-18 20:18:54,912 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-18 20:18:54,913 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 20:18:54,913 INFO L130 BoogieDeclarations]: Found specification of procedure thr [2020-04-18 20:18:54,913 INFO L138 BoogieDeclarations]: Found implementation of procedure thr [2020-04-18 20:18:54,913 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 20:18:54,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 20:18:54,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 20:18:54,915 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 20:18:54,916 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 20:18:55,300 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 20:18:55,301 INFO L295 CfgBuilder]: Removed 11 assume(true) statements. [2020-04-18 20:18:55,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:18:55 BoogieIcfgContainer [2020-04-18 20:18:55,304 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 20:18:55,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 20:18:55,306 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 20:18:55,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 20:18:55,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 08:18:53" (1/3) ... [2020-04-18 20:18:55,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7abdbd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:18:55, skipping insertion in model container [2020-04-18 20:18:55,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 08:18:54" (2/3) ... [2020-04-18 20:18:55,310 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7abdbd86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 08:18:55, skipping insertion in model container [2020-04-18 20:18:55,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 08:18:55" (3/3) ... [2020-04-18 20:18:55,312 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-array-1.i [2020-04-18 20:18:55,322 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 20:18:55,323 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 20:18:55,330 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 20:18:55,331 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 20:18:55,353 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,354 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,354 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,354 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,355 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,355 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,355 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,359 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,359 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,360 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,360 WARN L315 ript$VariableManager]: TermVariabe thrThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,360 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,378 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 20:18:55,395 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:18:55,395 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:18:55,395 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:18:55,395 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:18:55,396 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:18:55,396 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:18:55,396 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:18:55,396 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:18:55,408 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 67 places, 71 transitions, 150 flow [2020-04-18 20:18:55,431 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 252 states. [2020-04-18 20:18:55,433 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states. [2020-04-18 20:18:55,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:18:55,443 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:18:55,444 INFO L425 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:18:55,445 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:18:55,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:55,450 INFO L82 PathProgramCache]: Analyzing trace with hash -820867433, now seen corresponding path program 1 times [2020-04-18 20:18:55,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:18:55,457 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2037425545] [2020-04-18 20:18:55,470 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:18:55,480 INFO L259 McrAutomatonBuilder]: Finished intersection with 32 states and 31 transitions. [2020-04-18 20:18:55,482 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-04-18 20:18:55,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-04-18 20:18:55,483 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:18:55,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:55,484 INFO L82 PathProgramCache]: Analyzing trace with hash -820867433, now seen corresponding path program 2 times [2020-04-18 20:18:55,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:18:55,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337029244] [2020-04-18 20:18:55,488 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:18:55,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:18:55,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:18:55,698 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:18:55,700 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:18:55,700 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:18:55,701 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 20:18:55,701 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-04-18 20:18:55,712 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,713 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,713 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,713 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,714 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,714 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,714 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,715 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,715 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,715 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,715 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,716 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,716 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,716 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,717 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,717 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,717 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,717 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,718 WARN L315 ript$VariableManager]: TermVariabe thrThread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,720 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,721 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,721 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,721 WARN L315 ript$VariableManager]: TermVariabe thrThread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,721 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:55,727 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 20:18:55,727 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:18:55,727 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:18:55,728 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:18:55,728 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:18:55,728 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:18:55,728 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:18:55,728 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:18:55,728 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:18:55,732 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 75 places, 78 transitions, 174 flow [2020-04-18 20:18:55,814 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1626 states. [2020-04-18 20:18:55,815 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states. [2020-04-18 20:18:55,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:18:55,820 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:18:55,821 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:18:55,821 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:18:55,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:55,822 INFO L82 PathProgramCache]: Analyzing trace with hash -1563104110, now seen corresponding path program 1 times [2020-04-18 20:18:55,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:18:55,823 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1024728461] [2020-04-18 20:18:55,825 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:18:55,828 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:18:55,829 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 20:18:55,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:18:55,832 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:18:55,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:55,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1563104110, now seen corresponding path program 2 times [2020-04-18 20:18:55,833 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:18:55,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84244047] [2020-04-18 20:18:55,834 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:18:55,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:18:55,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:18:55,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84244047] [2020-04-18 20:18:55,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:18:55,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 20:18:55,963 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:18:55,968 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:18:55,983 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:18:55,984 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:18:55,992 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:18:55,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 20:18:55,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:18:56,000 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-04-18 20:18:56,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:18:56,006 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-04-18 20:18:56,007 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-04-18 20:18:56,011 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:18:56,012 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1024728461] [2020-04-18 20:18:56,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:18:56,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 20:18:56,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1024728461] [2020-04-18 20:18:56,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 20:18:56,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:18:56,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 20:18:56,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:18:56,020 INFO L87 Difference]: Start difference. First operand 1626 states. Second operand 2 states. [2020-04-18 20:18:56,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:18:56,049 INFO L93 Difference]: Finished difference Result 1626 states and 3947 transitions. [2020-04-18 20:18:56,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 20:18:56,051 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2020-04-18 20:18:56,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:18:56,078 INFO L225 Difference]: With dead ends: 1626 [2020-04-18 20:18:56,078 INFO L226 Difference]: Without dead ends: 1329 [2020-04-18 20:18:56,082 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:18:56,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2020-04-18 20:18:56,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1329. [2020-04-18 20:18:56,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1329 states. [2020-04-18 20:18:56,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1329 states to 1329 states and 3230 transitions. [2020-04-18 20:18:56,267 INFO L78 Accepts]: Start accepts. Automaton has 1329 states and 3230 transitions. Word has length 32 [2020-04-18 20:18:56,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:18:56,268 INFO L479 AbstractCegarLoop]: Abstraction has 1329 states and 3230 transitions. [2020-04-18 20:18:56,268 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 20:18:56,268 INFO L276 IsEmpty]: Start isEmpty. Operand 1329 states and 3230 transitions. [2020-04-18 20:18:56,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:18:56,271 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:18:56,271 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:18:56,271 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:18:56,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:56,273 INFO L82 PathProgramCache]: Analyzing trace with hash -843913485, now seen corresponding path program 1 times [2020-04-18 20:18:56,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:18:56,274 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [874611988] [2020-04-18 20:18:56,275 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:18:56,275 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:18:56,276 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 20:18:56,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:18:56,278 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:18:56,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:56,278 INFO L82 PathProgramCache]: Analyzing trace with hash -843913485, now seen corresponding path program 2 times [2020-04-18 20:18:56,278 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:18:56,279 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793365958] [2020-04-18 20:18:56,279 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:18:56,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:18:56,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:18:56,475 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793365958] [2020-04-18 20:18:56,475 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:18:56,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:18:56,476 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:18:56,479 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:18:56,482 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:18:56,482 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:18:56,529 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:18:56,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:18:56,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:18:56,530 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 6 states. [2020-04-18 20:18:56,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:18:56,582 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-04-18 20:18:56,582 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-04-18 20:18:56,583 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:18:56,583 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [874611988] [2020-04-18 20:18:56,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:18:56,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:18:56,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [874611988] [2020-04-18 20:18:56,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:18:56,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:18:56,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:18:56,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:18:56,586 INFO L87 Difference]: Start difference. First operand 1329 states and 3230 transitions. Second operand 6 states. [2020-04-18 20:18:56,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:18:56,672 INFO L93 Difference]: Finished difference Result 887 states and 1921 transitions. [2020-04-18 20:18:56,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 20:18:56,673 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-04-18 20:18:56,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:18:56,679 INFO L225 Difference]: With dead ends: 887 [2020-04-18 20:18:56,679 INFO L226 Difference]: Without dead ends: 887 [2020-04-18 20:18:56,683 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:18:56,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 887 states. [2020-04-18 20:18:56,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 887 to 807. [2020-04-18 20:18:56,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 807 states. [2020-04-18 20:18:56,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 807 states to 807 states and 1786 transitions. [2020-04-18 20:18:56,707 INFO L78 Accepts]: Start accepts. Automaton has 807 states and 1786 transitions. Word has length 32 [2020-04-18 20:18:56,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:18:56,707 INFO L479 AbstractCegarLoop]: Abstraction has 807 states and 1786 transitions. [2020-04-18 20:18:56,707 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:18:56,707 INFO L276 IsEmpty]: Start isEmpty. Operand 807 states and 1786 transitions. [2020-04-18 20:18:56,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:18:56,708 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:18:56,709 INFO L425 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:18:56,709 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:18:56,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:56,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1947211095, now seen corresponding path program 1 times [2020-04-18 20:18:56,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:18:56,710 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1106475105] [2020-04-18 20:18:56,711 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:18:56,713 INFO L259 McrAutomatonBuilder]: Finished intersection with 39 states and 38 transitions. [2020-04-18 20:18:56,714 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2020-04-18 20:18:56,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-04-18 20:18:56,714 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:18:56,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:56,715 INFO L82 PathProgramCache]: Analyzing trace with hash 1947211095, now seen corresponding path program 2 times [2020-04-18 20:18:56,715 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:18:56,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020359301] [2020-04-18 20:18:56,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:18:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:18:56,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:18:56,800 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:18:56,800 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:18:56,800 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:18:56,801 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 20:18:56,802 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-04-18 20:18:56,815 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,818 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,818 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,819 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,820 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,825 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,825 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,826 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,826 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,826 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,826 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,826 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,826 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,827 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,827 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,829 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,829 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,829 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,829 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,830 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,830 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,830 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,830 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,831 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,831 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,832 WARN L315 ript$VariableManager]: TermVariabe thrThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,838 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,838 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,838 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,838 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,838 WARN L315 ript$VariableManager]: TermVariabe thrThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,841 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,841 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,841 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,841 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,841 WARN L315 ript$VariableManager]: TermVariabe thrThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:56,845 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 20:18:56,845 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:18:56,846 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:18:56,846 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:18:56,846 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:18:56,846 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:18:56,846 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:18:56,846 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:18:56,846 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:18:56,848 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 83 places, 85 transitions, 200 flow [2020-04-18 20:18:57,391 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 11046 states. [2020-04-18 20:18:57,391 INFO L276 IsEmpty]: Start isEmpty. Operand 11046 states. [2020-04-18 20:18:57,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:18:57,392 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:18:57,392 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:18:57,392 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:18:57,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:57,393 INFO L82 PathProgramCache]: Analyzing trace with hash 463947155, now seen corresponding path program 1 times [2020-04-18 20:18:57,393 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:18:57,393 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [579694618] [2020-04-18 20:18:57,394 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:18:57,394 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:18:57,395 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 20:18:57,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:18:57,395 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:18:57,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:57,395 INFO L82 PathProgramCache]: Analyzing trace with hash 463947155, now seen corresponding path program 2 times [2020-04-18 20:18:57,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:18:57,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152678082] [2020-04-18 20:18:57,396 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:18:57,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:18:57,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:18:57,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152678082] [2020-04-18 20:18:57,421 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:18:57,421 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 20:18:57,422 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:18:57,424 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:18:57,426 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:18:57,427 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:18:57,428 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:18:57,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 20:18:57,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:18:57,428 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-04-18 20:18:57,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:18:57,429 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-04-18 20:18:57,429 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-04-18 20:18:57,430 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:18:57,430 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [579694618] [2020-04-18 20:18:57,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:18:57,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 20:18:57,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [579694618] [2020-04-18 20:18:57,431 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 20:18:57,431 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:18:57,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 20:18:57,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:18:57,432 INFO L87 Difference]: Start difference. First operand 11046 states. Second operand 2 states. [2020-04-18 20:18:57,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:18:57,633 INFO L93 Difference]: Finished difference Result 11046 states and 35036 transitions. [2020-04-18 20:18:57,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 20:18:57,633 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2020-04-18 20:18:57,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:18:57,708 INFO L225 Difference]: With dead ends: 11046 [2020-04-18 20:18:57,708 INFO L226 Difference]: Without dead ends: 8985 [2020-04-18 20:18:57,709 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:18:57,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8985 states. [2020-04-18 20:18:57,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8985 to 8985. [2020-04-18 20:18:57,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8985 states. [2020-04-18 20:18:58,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8985 states to 8985 states and 28565 transitions. [2020-04-18 20:18:58,100 INFO L78 Accepts]: Start accepts. Automaton has 8985 states and 28565 transitions. Word has length 32 [2020-04-18 20:18:58,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:18:58,100 INFO L479 AbstractCegarLoop]: Abstraction has 8985 states and 28565 transitions. [2020-04-18 20:18:58,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 20:18:58,101 INFO L276 IsEmpty]: Start isEmpty. Operand 8985 states and 28565 transitions. [2020-04-18 20:18:58,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:18:58,101 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:18:58,102 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:18:58,102 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:18:58,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:58,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1304375053, now seen corresponding path program 1 times [2020-04-18 20:18:58,103 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:18:58,103 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1085646875] [2020-04-18 20:18:58,104 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:18:58,104 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:18:58,104 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 20:18:58,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:18:58,105 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:18:58,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:58,105 INFO L82 PathProgramCache]: Analyzing trace with hash -1304375053, now seen corresponding path program 2 times [2020-04-18 20:18:58,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:18:58,107 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395399024] [2020-04-18 20:18:58,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:18:58,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:18:58,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:18:58,241 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395399024] [2020-04-18 20:18:58,242 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:18:58,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:18:58,242 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:18:58,245 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:18:58,248 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:18:58,248 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:18:58,292 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:18:58,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:18:58,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:18:58,293 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 6 states. [2020-04-18 20:18:58,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:18:58,329 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-04-18 20:18:58,329 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-04-18 20:18:58,330 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:18:58,330 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1085646875] [2020-04-18 20:18:58,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:18:58,330 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:18:58,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1085646875] [2020-04-18 20:18:58,331 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:18:58,331 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:18:58,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:18:58,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:18:58,332 INFO L87 Difference]: Start difference. First operand 8985 states and 28565 transitions. Second operand 6 states. [2020-04-18 20:18:58,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:18:58,440 INFO L93 Difference]: Finished difference Result 6671 states and 19300 transitions. [2020-04-18 20:18:58,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 20:18:58,441 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-04-18 20:18:58,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:18:58,480 INFO L225 Difference]: With dead ends: 6671 [2020-04-18 20:18:58,480 INFO L226 Difference]: Without dead ends: 6671 [2020-04-18 20:18:58,481 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:18:58,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6671 states. [2020-04-18 20:18:58,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6671 to 5913. [2020-04-18 20:18:58,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5913 states. [2020-04-18 20:18:58,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5913 states to 5913 states and 17436 transitions. [2020-04-18 20:18:58,660 INFO L78 Accepts]: Start accepts. Automaton has 5913 states and 17436 transitions. Word has length 32 [2020-04-18 20:18:58,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:18:58,661 INFO L479 AbstractCegarLoop]: Abstraction has 5913 states and 17436 transitions. [2020-04-18 20:18:58,661 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:18:58,661 INFO L276 IsEmpty]: Start isEmpty. Operand 5913 states and 17436 transitions. [2020-04-18 20:18:58,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:18:58,664 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:18:58,664 INFO L425 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:18:58,664 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:18:58,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:58,664 INFO L82 PathProgramCache]: Analyzing trace with hash -720133895, now seen corresponding path program 1 times [2020-04-18 20:18:58,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:18:58,665 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [301643543] [2020-04-18 20:18:58,666 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:18:58,667 INFO L259 McrAutomatonBuilder]: Finished intersection with 46 states and 45 transitions. [2020-04-18 20:18:58,668 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-04-18 20:18:58,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-04-18 20:18:58,668 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:18:58,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:18:58,669 INFO L82 PathProgramCache]: Analyzing trace with hash -720133895, now seen corresponding path program 2 times [2020-04-18 20:18:58,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:18:58,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404182164] [2020-04-18 20:18:58,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:18:58,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:18:58,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:18:58,714 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:18:58,714 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:18:58,715 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:18:58,715 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 20:18:58,715 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-04-18 20:18:58,724 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,724 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,725 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,725 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,725 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,725 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,725 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,726 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,726 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,726 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,726 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,726 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,726 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,727 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,727 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,727 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,728 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,728 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,728 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,728 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,728 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,729 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,729 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,729 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,729 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,729 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,729 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,730 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,730 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,730 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,731 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,731 WARN L315 ript$VariableManager]: TermVariabe thrThread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,731 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,733 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,733 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,733 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,733 WARN L315 ript$VariableManager]: TermVariabe thrThread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,734 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,736 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,736 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,736 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,736 WARN L315 ript$VariableManager]: TermVariabe thrThread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,736 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,738 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,738 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,739 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,739 WARN L315 ript$VariableManager]: TermVariabe thrThread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,739 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:18:58,744 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 20:18:58,745 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:18:58,745 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:18:58,745 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:18:58,745 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:18:58,745 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:18:58,745 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:18:58,746 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:18:58,746 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:18:58,748 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 92 transitions, 228 flow [2020-04-18 20:19:08,205 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 75798 states. [2020-04-18 20:19:08,206 INFO L276 IsEmpty]: Start isEmpty. Operand 75798 states. [2020-04-18 20:19:08,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:19:08,206 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:19:08,207 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:19:08,207 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:19:08,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:19:08,207 INFO L82 PathProgramCache]: Analyzing trace with hash -674273487, now seen corresponding path program 1 times [2020-04-18 20:19:08,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:19:08,208 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1388020890] [2020-04-18 20:19:08,208 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:19:08,209 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:19:08,209 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 20:19:08,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:19:08,209 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:19:08,210 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:19:08,210 INFO L82 PathProgramCache]: Analyzing trace with hash -674273487, now seen corresponding path program 2 times [2020-04-18 20:19:08,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:19:08,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619637684] [2020-04-18 20:19:08,211 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:19:08,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:19:08,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:19:08,247 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619637684] [2020-04-18 20:19:08,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:19:08,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-18 20:19:08,248 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:19:08,251 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:19:08,253 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:19:08,253 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:19:08,254 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:19:08,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 20:19:08,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:19:08,254 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2020-04-18 20:19:08,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:19:08,255 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-04-18 20:19:08,255 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-04-18 20:19:08,255 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:19:08,256 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1388020890] [2020-04-18 20:19:08,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:19:08,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2] total 2 [2020-04-18 20:19:08,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1388020890] [2020-04-18 20:19:08,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-04-18 20:19:08,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:19:08,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-04-18 20:19:08,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:19:08,257 INFO L87 Difference]: Start difference. First operand 75798 states. Second operand 2 states. [2020-04-18 20:19:08,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:19:08,721 INFO L93 Difference]: Finished difference Result 75798 states and 295949 transitions. [2020-04-18 20:19:08,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-04-18 20:19:08,722 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 32 [2020-04-18 20:19:08,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:19:10,804 INFO L225 Difference]: With dead ends: 75798 [2020-04-18 20:19:10,804 INFO L226 Difference]: Without dead ends: 61389 [2020-04-18 20:19:10,804 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-04-18 20:19:11,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61389 states. [2020-04-18 20:19:12,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61389 to 61389. [2020-04-18 20:19:12,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61389 states. [2020-04-18 20:19:12,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61389 states to 61389 states and 240380 transitions. [2020-04-18 20:19:12,849 INFO L78 Accepts]: Start accepts. Automaton has 61389 states and 240380 transitions. Word has length 32 [2020-04-18 20:19:12,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:19:12,850 INFO L479 AbstractCegarLoop]: Abstraction has 61389 states and 240380 transitions. [2020-04-18 20:19:12,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-04-18 20:19:12,850 INFO L276 IsEmpty]: Start isEmpty. Operand 61389 states and 240380 transitions. [2020-04-18 20:19:12,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:19:12,850 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:19:12,851 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:19:12,851 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:19:12,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:19:12,851 INFO L82 PathProgramCache]: Analyzing trace with hash 16287987, now seen corresponding path program 1 times [2020-04-18 20:19:12,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:19:12,852 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1646066608] [2020-04-18 20:19:12,852 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:19:12,853 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:19:12,853 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-04-18 20:19:12,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-04-18 20:19:12,853 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:19:12,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:19:12,854 INFO L82 PathProgramCache]: Analyzing trace with hash 16287987, now seen corresponding path program 2 times [2020-04-18 20:19:12,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:19:12,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742808240] [2020-04-18 20:19:12,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:19:12,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 20:19:12,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 20:19:12,935 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742808240] [2020-04-18 20:19:12,935 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 20:19:12,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-04-18 20:19:12,935 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 20:19:12,937 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:19:12,940 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 32 transitions. [2020-04-18 20:19:12,940 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 20:19:12,986 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 20:19:12,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:19:12,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-04-18 20:19:12,986 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 6 states. [2020-04-18 20:19:13,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:19:13,020 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2020-04-18 20:19:13,021 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2020-04-18 20:19:13,021 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 20:19:13,021 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1646066608] [2020-04-18 20:19:13,021 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 20:19:13,022 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-04-18 20:19:13,022 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1646066608] [2020-04-18 20:19:13,022 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 20:19:13,022 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 20:19:13,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 20:19:13,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:19:13,023 INFO L87 Difference]: Start difference. First operand 61389 states and 240380 transitions. Second operand 6 states. [2020-04-18 20:19:15,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 20:19:15,162 INFO L93 Difference]: Finished difference Result 49715 states and 180097 transitions. [2020-04-18 20:19:15,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 20:19:15,162 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-04-18 20:19:15,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 20:19:15,306 INFO L225 Difference]: With dead ends: 49715 [2020-04-18 20:19:15,306 INFO L226 Difference]: Without dead ends: 49715 [2020-04-18 20:19:15,307 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2020-04-18 20:19:15,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49715 states. [2020-04-18 20:19:16,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49715 to 43311. [2020-04-18 20:19:16,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43311 states. [2020-04-18 20:19:16,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43311 states to 43311 states and 159350 transitions. [2020-04-18 20:19:16,667 INFO L78 Accepts]: Start accepts. Automaton has 43311 states and 159350 transitions. Word has length 32 [2020-04-18 20:19:16,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 20:19:16,667 INFO L479 AbstractCegarLoop]: Abstraction has 43311 states and 159350 transitions. [2020-04-18 20:19:16,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 20:19:16,667 INFO L276 IsEmpty]: Start isEmpty. Operand 43311 states and 159350 transitions. [2020-04-18 20:19:16,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-04-18 20:19:16,678 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 20:19:16,678 INFO L425 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 20:19:16,678 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 20:19:16,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:19:16,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1051494560, now seen corresponding path program 1 times [2020-04-18 20:19:16,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 20:19:16,679 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [2096925698] [2020-04-18 20:19:16,680 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 20:19:16,684 INFO L259 McrAutomatonBuilder]: Finished intersection with 53 states and 52 transitions. [2020-04-18 20:19:16,684 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states. [2020-04-18 20:19:16,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-04-18 20:19:16,685 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 20:19:16,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 20:19:16,685 INFO L82 PathProgramCache]: Analyzing trace with hash -1051494560, now seen corresponding path program 2 times [2020-04-18 20:19:16,685 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 20:19:16,686 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880898028] [2020-04-18 20:19:16,686 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 20:19:16,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:19:16,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-04-18 20:19:16,742 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-04-18 20:19:16,742 INFO L174 FreeRefinementEngine]: Strategy MCR found a feasible trace [2020-04-18 20:19:16,743 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-04-18 20:19:16,743 WARN L363 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-04-18 20:19:16,743 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-04-18 20:19:16,751 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,752 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,752 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,752 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,752 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,752 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,752 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,753 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,753 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,753 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,753 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,753 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,753 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,754 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,754 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,754 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,754 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,754 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,754 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,754 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,755 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,755 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,755 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,755 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,755 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,755 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,755 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,756 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,756 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,756 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,756 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,756 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,756 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,757 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,757 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,757 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,757 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,758 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,758 WARN L315 ript$VariableManager]: TermVariabe thrThread1of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,758 WARN L315 ript$VariableManager]: TermVariabe |thrThread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,759 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,759 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,760 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,760 WARN L315 ript$VariableManager]: TermVariabe |thrThread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,760 WARN L315 ript$VariableManager]: TermVariabe thrThread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,761 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,761 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,761 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,762 WARN L315 ript$VariableManager]: TermVariabe thrThread3of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,762 WARN L315 ript$VariableManager]: TermVariabe |thrThread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,763 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,763 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,763 WARN L315 ript$VariableManager]: TermVariabe |thrThread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,764 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,764 WARN L315 ript$VariableManager]: TermVariabe thrThread4of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,765 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,765 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,765 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,766 WARN L315 ript$VariableManager]: TermVariabe |thrThread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,766 WARN L315 ript$VariableManager]: TermVariabe thrThread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 20:19:16,771 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 20:19:16,771 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 20:19:16,771 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 20:19:16,771 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 20:19:16,771 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 20:19:16,771 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 20:19:16,772 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 20:19:16,772 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 20:19:16,772 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 20:19:16,774 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 99 places, 99 transitions, 258 flow Received shutdown request... [2020-04-18 20:23:18,777 WARN L544 AbstractCegarLoop]: Verification canceled [2020-04-18 20:23:18,782 WARN L228 ceAbstractionStarter]: Timeout [2020-04-18 20:23:18,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 08:23:18 BasicIcfg [2020-04-18 20:23:18,782 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 20:23:18,785 INFO L168 Benchmark]: Toolchain (without parser) took 264796.48 ms. Allocated memory was 145.8 MB in the beginning and 3.0 GB in the end (delta: 2.9 GB). Free memory was 102.2 MB in the beginning and 1.7 GB in the end (delta: -1.6 GB). Peak memory consumption was 2.8 GB. Max. memory is 7.1 GB. [2020-04-18 20:23:18,788 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 20:23:18,789 INFO L168 Benchmark]: CACSL2BoogieTranslator took 751.81 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 100.3 MB in the beginning and 162.4 MB in the end (delta: -62.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2020-04-18 20:23:18,792 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.99 ms. Allocated memory is still 205.5 MB. Free memory was 162.4 MB in the beginning and 159.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. [2020-04-18 20:23:18,793 INFO L168 Benchmark]: Boogie Preprocessor took 29.26 ms. Allocated memory is still 205.5 MB. Free memory was 159.4 MB in the beginning and 158.5 MB in the end (delta: 975.0 kB). Peak memory consumption was 975.0 kB. Max. memory is 7.1 GB. [2020-04-18 20:23:18,794 INFO L168 Benchmark]: RCFGBuilder took 461.07 ms. Allocated memory is still 205.5 MB. Free memory was 158.5 MB in the beginning and 135.2 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. [2020-04-18 20:23:18,796 INFO L168 Benchmark]: TraceAbstraction took 263477.12 ms. Allocated memory was 205.5 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 135.2 MB in the beginning and 1.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. [2020-04-18 20:23:18,803 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 145.8 MB. Free memory is still 121.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 751.81 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 100.3 MB in the beginning and 162.4 MB in the end (delta: -62.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.99 ms. Allocated memory is still 205.5 MB. Free memory was 162.4 MB in the beginning and 159.4 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.26 ms. Allocated memory is still 205.5 MB. Free memory was 159.4 MB in the beginning and 158.5 MB in the end (delta: 975.0 kB). Peak memory consumption was 975.0 kB. Max. memory is 7.1 GB. * RCFGBuilder took 461.07 ms. Allocated memory is still 205.5 MB. Free memory was 158.5 MB in the beginning and 135.2 MB in the end (delta: 23.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 263477.12 ms. Allocated memory was 205.5 MB in the beginning and 3.0 GB in the end (delta: 2.8 GB). Free memory was 135.2 MB in the beginning and 1.7 GB in the end (delta: -1.5 GB). Peak memory consumption was 2.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 678]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 678). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 99 places, 99 transitions, 258 flow. Already constructed 370330 states. Currently 17493 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 64 locations, 1 error locations. Started 5 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 263.2s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 5.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 252.1s, HoareTripleCheckerStatistics: 447 SDtfs, 773 SDslu, 186 SDs, 0 SdLazy, 112 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 192 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75798occurred 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: 4.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 7242 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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 could not prove your program: Timeout Completed graceful shutdown