/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 01:31:06,731 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 01:31:06,734 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 01:31:06,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 01:31:06,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 01:31:06,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 01:31:06,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 01:31:06,763 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 01:31:06,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 01:31:06,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 01:31:06,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 01:31:06,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 01:31:06,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 01:31:06,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 01:31:06,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 01:31:06,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 01:31:06,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 01:31:06,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 01:31:06,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 01:31:06,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 01:31:06,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 01:31:06,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 01:31:06,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 01:31:06,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 01:31:06,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 01:31:06,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 01:31:06,787 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 01:31:06,788 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 01:31:06,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 01:31:06,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 01:31:06,790 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 01:31:06,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 01:31:06,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 01:31:06,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 01:31:06,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 01:31:06,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 01:31:06,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 01:31:06,834 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 01:31:06,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 01:31:06,837 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 01:31:06,838 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 01:31:06,838 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 01:31:06,839 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 01:31:06,839 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 01:31:06,839 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 01:31:06,839 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 01:31:06,840 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 01:31:06,840 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 01:31:06,840 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 01:31:06,840 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 01:31:06,840 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 01:31:06,841 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 01:31:06,841 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 01:31:06,841 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 01:31:06,842 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 01:31:06,842 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 01:31:06,843 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 01:31:06,843 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 01:31:06,843 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 01:31:06,843 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 01:31:06,843 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 01:31:06,844 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 01:31:06,844 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 01:31:06,844 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 01:31:06,844 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 01:31:06,844 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 01:31:06,845 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 01:31:06,845 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 01:31:07,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 01:31:07,178 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 01:31:07,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 01:31:07,183 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 01:31:07,184 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 01:31:07,185 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2020-10-22 01:31:07,259 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87d5c0f6c/57f7b1693db7407da3aedaf63c44b1b7/FLAGb0e1ce76b [2020-10-22 01:31:07,809 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 01:31:07,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/46_monabsex2_vs.i [2020-10-22 01:31:07,826 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87d5c0f6c/57f7b1693db7407da3aedaf63c44b1b7/FLAGb0e1ce76b [2020-10-22 01:31:08,093 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87d5c0f6c/57f7b1693db7407da3aedaf63c44b1b7 [2020-10-22 01:31:08,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 01:31:08,109 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 01:31:08,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 01:31:08,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 01:31:08,114 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 01:31:08,115 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:31:08" (1/1) ... [2020-10-22 01:31:08,118 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a9ba649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:31:08, skipping insertion in model container [2020-10-22 01:31:08,118 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:31:08" (1/1) ... [2020-10-22 01:31:08,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 01:31:08,189 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 01:31:08,543 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-22 01:31:08,751 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:31:08,765 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 01:31:08,794 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-10-22 01:31:08,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:31:08,921 INFO L208 MainTranslator]: Completed translation [2020-10-22 01:31:08,921 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:31:08 WrapperNode [2020-10-22 01:31:08,921 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 01:31:08,922 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 01:31:08,922 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 01:31:08,922 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 01:31:08,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:31:08" (1/1) ... [2020-10-22 01:31:08,947 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:31:08" (1/1) ... [2020-10-22 01:31:08,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 01:31:08,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 01:31:08,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 01:31:08,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 01:31:08,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:31:08" (1/1) ... [2020-10-22 01:31:08,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:31:08" (1/1) ... [2020-10-22 01:31:08,989 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:31:08" (1/1) ... [2020-10-22 01:31:08,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:31:08" (1/1) ... [2020-10-22 01:31:08,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:31:08" (1/1) ... [2020-10-22 01:31:08,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:31:08" (1/1) ... [2020-10-22 01:31:09,001 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:31:08" (1/1) ... [2020-10-22 01:31:09,004 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 01:31:09,005 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 01:31:09,005 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 01:31:09,005 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 01:31:09,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:31:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 01:31:09,079 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-22 01:31:09,081 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-22 01:31:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 01:31:09,081 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-22 01:31:09,082 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 01:31:09,083 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 01:31:09,085 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 01:31:09,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-22 01:31:09,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 01:31:09,086 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 01:31:09,088 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 01:31:09,497 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 01:31:09,498 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-22 01:31:09,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:31:09 BoogieIcfgContainer [2020-10-22 01:31:09,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 01:31:09,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 01:31:09,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 01:31:09,505 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 01:31:09,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 01:31:08" (1/3) ... [2020-10-22 01:31:09,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29bea1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:31:09, skipping insertion in model container [2020-10-22 01:31:09,507 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:31:08" (2/3) ... [2020-10-22 01:31:09,507 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@29bea1f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:31:09, skipping insertion in model container [2020-10-22 01:31:09,508 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:31:09" (3/3) ... [2020-10-22 01:31:09,510 INFO L111 eAbstractionObserver]: Analyzing ICFG 46_monabsex2_vs.i [2020-10-22 01:31:09,522 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 01:31:09,523 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 01:31:09,530 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 01:31:09,531 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 01:31:09,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,556 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:09,565 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:31:09,580 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-22 01:31:09,600 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:31:09,600 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:31:09,600 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:31:09,600 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:31:09,600 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:31:09,601 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:31:09,601 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:31:09,601 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:31:09,613 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:31:09,613 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 32 places, 30 transitions, 65 flow [2020-10-22 01:31:09,616 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 32 places, 30 transitions, 65 flow [2020-10-22 01:31:09,618 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 32 places, 30 transitions, 65 flow [2020-10-22 01:31:09,651 INFO L129 PetriNetUnfolder]: 2/38 cut-off events. [2020-10-22 01:31:09,652 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 01:31:09,656 INFO L80 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 38 events. 2/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 49 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 20. Up to 4 conditions per place. [2020-10-22 01:31:09,657 INFO L116 LiptonReduction]: Number of co-enabled transitions 140 [2020-10-22 01:31:10,574 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-22 01:31:10,650 INFO L131 LiptonReduction]: Checked pairs total: 112 [2020-10-22 01:31:10,650 INFO L133 LiptonReduction]: Total number of compositions: 24 [2020-10-22 01:31:10,658 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 11 places, 8 transitions, 21 flow [2020-10-22 01:31:10,667 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 19 states. [2020-10-22 01:31:10,670 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2020-10-22 01:31:10,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-22 01:31:10,676 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:10,677 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-22 01:31:10,678 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 01:31:10,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:10,685 INFO L82 PathProgramCache]: Analyzing trace with hash 4817916, now seen corresponding path program 1 times [2020-10-22 01:31:10,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:10,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165870771] [2020-10-22 01:31:10,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:10,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:31:10,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:31:10,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165870771] [2020-10-22 01:31:10,936 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:31:10,936 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 01:31:10,937 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [611346824] [2020-10-22 01:31:10,938 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:31:10,942 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:31:10,960 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-22 01:31:10,961 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:31:10,966 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:31:10,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:31:10,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:31:10,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:31:10,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:10,986 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 3 states. [2020-10-22 01:31:11,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:31:11,002 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-10-22 01:31:11,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:31:11,004 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-22 01:31:11,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:31:11,013 INFO L225 Difference]: With dead ends: 11 [2020-10-22 01:31:11,013 INFO L226 Difference]: Without dead ends: 11 [2020-10-22 01:31:11,015 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:11,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-10-22 01:31:11,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-10-22 01:31:11,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-10-22 01:31:11,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2020-10-22 01:31:11,053 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 4 [2020-10-22 01:31:11,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:31:11,054 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2020-10-22 01:31:11,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:31:11,054 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2020-10-22 01:31:11,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 01:31:11,056 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:11,056 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-22 01:31:11,057 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 01:31:11,057 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 01:31:11,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:11,057 INFO L82 PathProgramCache]: Analyzing trace with hash 335012231, now seen corresponding path program 1 times [2020-10-22 01:31:11,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:11,059 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254596714] [2020-10-22 01:31:11,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:11,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:31:11,103 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:31:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:31:11,119 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:31:11,142 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:31:11,142 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:31:11,144 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 01:31:11,145 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:31:11,145 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-22 01:31:11,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,153 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,153 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,153 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,153 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,153 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,154 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,154 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,154 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,155 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,155 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,155 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,155 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,156 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,157 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,157 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,157 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,158 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,158 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,159 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,162 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,163 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:11,165 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:31:11,165 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 01:31:11,166 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:31:11,166 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:31:11,166 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:31:11,166 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:31:11,166 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:31:11,166 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:31:11,166 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:31:11,167 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:31:11,169 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:31:11,169 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 38 transitions, 88 flow [2020-10-22 01:31:11,169 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 38 transitions, 88 flow [2020-10-22 01:31:11,170 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 42 places, 38 transitions, 88 flow [2020-10-22 01:31:11,184 INFO L129 PetriNetUnfolder]: 3/55 cut-off events. [2020-10-22 01:31:11,184 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-22 01:31:11,185 INFO L80 FinitePrefix]: Finished finitePrefix Result has 65 conditions, 55 events. 3/55 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 97 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 39. Up to 6 conditions per place. [2020-10-22 01:31:11,186 INFO L116 LiptonReduction]: Number of co-enabled transitions 392 [2020-10-22 01:31:11,841 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-22 01:31:11,902 INFO L131 LiptonReduction]: Checked pairs total: 916 [2020-10-22 01:31:11,902 INFO L133 LiptonReduction]: Total number of compositions: 26 [2020-10-22 01:31:11,903 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 15 transitions, 42 flow [2020-10-22 01:31:11,913 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 149 states. [2020-10-22 01:31:11,913 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states. [2020-10-22 01:31:11,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-22 01:31:11,914 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:11,914 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-22 01:31:11,914 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:31:11,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:11,915 INFO L82 PathProgramCache]: Analyzing trace with hash 7030424, now seen corresponding path program 1 times [2020-10-22 01:31:11,920 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:11,920 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477359121] [2020-10-22 01:31:11,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:31:11,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:31:11,984 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477359121] [2020-10-22 01:31:11,984 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:31:11,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 01:31:11,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [382338216] [2020-10-22 01:31:11,985 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:31:11,985 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:31:11,986 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-22 01:31:11,987 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:31:11,987 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:31:11,987 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:31:11,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:31:11,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:31:11,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:11,988 INFO L87 Difference]: Start difference. First operand 149 states. Second operand 3 states. [2020-10-22 01:31:12,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:31:12,012 INFO L93 Difference]: Finished difference Result 87 states and 182 transitions. [2020-10-22 01:31:12,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:31:12,013 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-22 01:31:12,014 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:31:12,015 INFO L225 Difference]: With dead ends: 87 [2020-10-22 01:31:12,016 INFO L226 Difference]: Without dead ends: 87 [2020-10-22 01:31:12,016 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:12,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2020-10-22 01:31:12,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2020-10-22 01:31:12,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-10-22 01:31:12,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 182 transitions. [2020-10-22 01:31:12,031 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 182 transitions. Word has length 4 [2020-10-22 01:31:12,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:31:12,031 INFO L481 AbstractCegarLoop]: Abstraction has 87 states and 182 transitions. [2020-10-22 01:31:12,032 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:31:12,032 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 182 transitions. [2020-10-22 01:31:12,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 01:31:12,033 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:12,033 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-22 01:31:12,033 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 01:31:12,033 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:31:12,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:12,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1242039748, now seen corresponding path program 1 times [2020-10-22 01:31:12,037 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:12,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055761531] [2020-10-22 01:31:12,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:12,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:31:12,058 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:31:12,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:31:12,072 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:31:12,078 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:31:12,079 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:31:12,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 01:31:12,080 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:31:12,081 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-22 01:31:12,089 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,090 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,090 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,090 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,090 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,091 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,091 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,091 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,091 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,091 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,092 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,092 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,092 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,093 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,093 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,093 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,093 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,093 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,094 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,094 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,094 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,094 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,094 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,094 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,095 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,095 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,095 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,095 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,097 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,097 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,097 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,097 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,098 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,098 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,101 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,101 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,101 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,102 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,103 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,103 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,103 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,103 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,103 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:12,104 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:31:12,105 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-22 01:31:12,105 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:31:12,105 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:31:12,105 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:31:12,105 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:31:12,106 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:31:12,106 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:31:12,106 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:31:12,106 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:31:12,108 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:31:12,108 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 52 places, 46 transitions, 113 flow [2020-10-22 01:31:12,108 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 52 places, 46 transitions, 113 flow [2020-10-22 01:31:12,109 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 52 places, 46 transitions, 113 flow [2020-10-22 01:31:12,123 INFO L129 PetriNetUnfolder]: 4/72 cut-off events. [2020-10-22 01:31:12,124 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-22 01:31:12,125 INFO L80 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 72 events. 4/72 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 158 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 59. Up to 8 conditions per place. [2020-10-22 01:31:12,127 INFO L116 LiptonReduction]: Number of co-enabled transitions 756 [2020-10-22 01:31:12,818 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-22 01:31:12,882 INFO L131 LiptonReduction]: Checked pairs total: 1562 [2020-10-22 01:31:12,882 INFO L133 LiptonReduction]: Total number of compositions: 30 [2020-10-22 01:31:12,882 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 20 transitions, 61 flow [2020-10-22 01:31:12,930 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 749 states. [2020-10-22 01:31:12,930 INFO L276 IsEmpty]: Start isEmpty. Operand 749 states. [2020-10-22 01:31:12,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-22 01:31:12,931 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:12,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-22 01:31:12,931 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:31:12,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:12,932 INFO L82 PathProgramCache]: Analyzing trace with hash 9611316, now seen corresponding path program 1 times [2020-10-22 01:31:12,933 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:12,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246467363] [2020-10-22 01:31:12,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:12,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:31:12,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:31:12,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246467363] [2020-10-22 01:31:12,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:31:12,968 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 01:31:12,968 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2101444759] [2020-10-22 01:31:12,968 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:31:12,969 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:31:12,970 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-22 01:31:12,970 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:31:12,970 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:31:12,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:31:12,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:31:12,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:31:12,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:12,972 INFO L87 Difference]: Start difference. First operand 749 states. Second operand 3 states. [2020-10-22 01:31:13,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:31:13,023 INFO L93 Difference]: Finished difference Result 421 states and 1176 transitions. [2020-10-22 01:31:13,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:31:13,025 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-22 01:31:13,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:31:13,040 INFO L225 Difference]: With dead ends: 421 [2020-10-22 01:31:13,040 INFO L226 Difference]: Without dead ends: 421 [2020-10-22 01:31:13,040 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:13,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states. [2020-10-22 01:31:13,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 421. [2020-10-22 01:31:13,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-10-22 01:31:13,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 1176 transitions. [2020-10-22 01:31:13,114 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 1176 transitions. Word has length 4 [2020-10-22 01:31:13,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:31:13,115 INFO L481 AbstractCegarLoop]: Abstraction has 421 states and 1176 transitions. [2020-10-22 01:31:13,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:31:13,115 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 1176 transitions. [2020-10-22 01:31:13,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 01:31:13,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:13,117 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:31:13,118 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 01:31:13,118 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:31:13,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:13,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1081312211, now seen corresponding path program 1 times [2020-10-22 01:31:13,120 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:13,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484486375] [2020-10-22 01:31:13,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:13,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:31:13,194 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-22 01:31:13,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484486375] [2020-10-22 01:31:13,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:31:13,195 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:31:13,195 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1723340154] [2020-10-22 01:31:13,195 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:31:13,196 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:31:13,202 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-10-22 01:31:13,202 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:31:13,259 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:31:13,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:31:13,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:31:13,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:31:13,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:13,260 INFO L87 Difference]: Start difference. First operand 421 states and 1176 transitions. Second operand 3 states. [2020-10-22 01:31:13,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:31:13,288 INFO L93 Difference]: Finished difference Result 319 states and 912 transitions. [2020-10-22 01:31:13,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:31:13,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 01:31:13,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:31:13,293 INFO L225 Difference]: With dead ends: 319 [2020-10-22 01:31:13,293 INFO L226 Difference]: Without dead ends: 319 [2020-10-22 01:31:13,294 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:13,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2020-10-22 01:31:13,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2020-10-22 01:31:13,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-10-22 01:31:13,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 912 transitions. [2020-10-22 01:31:13,316 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 912 transitions. Word has length 10 [2020-10-22 01:31:13,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:31:13,317 INFO L481 AbstractCegarLoop]: Abstraction has 319 states and 912 transitions. [2020-10-22 01:31:13,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:31:13,317 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 912 transitions. [2020-10-22 01:31:13,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 01:31:13,318 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:13,319 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-22 01:31:13,319 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 01:31:13,319 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:31:13,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:13,319 INFO L82 PathProgramCache]: Analyzing trace with hash 1410813392, now seen corresponding path program 1 times [2020-10-22 01:31:13,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:13,322 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010682676] [2020-10-22 01:31:13,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:31:13,338 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:31:13,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:31:13,349 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:31:13,356 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:31:13,356 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:31:13,356 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 01:31:13,357 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:31:13,357 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-22 01:31:13,364 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,364 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,365 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,365 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,365 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,365 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,365 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,366 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,367 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,367 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,367 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,367 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,367 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,368 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,369 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,369 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,369 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,370 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,371 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,371 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,372 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,372 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,373 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,374 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,374 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,376 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,377 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,377 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,379 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,379 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,379 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,380 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,381 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,382 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,382 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,382 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:13,383 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:31:13,384 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-22 01:31:13,384 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:31:13,384 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:31:13,384 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:31:13,384 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:31:13,385 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:31:13,385 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:31:13,385 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:31:13,385 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:31:13,386 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:31:13,387 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 54 transitions, 140 flow [2020-10-22 01:31:13,387 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 54 transitions, 140 flow [2020-10-22 01:31:13,387 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 54 transitions, 140 flow [2020-10-22 01:31:13,404 INFO L129 PetriNetUnfolder]: 5/89 cut-off events. [2020-10-22 01:31:13,404 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-22 01:31:13,405 INFO L80 FinitePrefix]: Finished finitePrefix Result has 112 conditions, 89 events. 5/89 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 187 event pairs, 0 based on Foata normal form. 0/75 useless extension candidates. Maximal degree in co-relation 80. Up to 10 conditions per place. [2020-10-22 01:31:13,407 INFO L116 LiptonReduction]: Number of co-enabled transitions 1232 [2020-10-22 01:31:14,176 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-22 01:31:14,238 INFO L131 LiptonReduction]: Checked pairs total: 2835 [2020-10-22 01:31:14,239 INFO L133 LiptonReduction]: Total number of compositions: 34 [2020-10-22 01:31:14,239 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 25 transitions, 82 flow [2020-10-22 01:31:14,468 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 3749 states. [2020-10-22 01:31:14,469 INFO L276 IsEmpty]: Start isEmpty. Operand 3749 states. [2020-10-22 01:31:14,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-22 01:31:14,469 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:14,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-22 01:31:14,470 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 01:31:14,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:14,471 INFO L82 PathProgramCache]: Analyzing trace with hash 12559697, now seen corresponding path program 1 times [2020-10-22 01:31:14,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:14,474 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368585238] [2020-10-22 01:31:14,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:14,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:31:14,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:31:14,516 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368585238] [2020-10-22 01:31:14,516 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:31:14,516 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 01:31:14,516 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [236935482] [2020-10-22 01:31:14,517 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:31:14,517 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:31:14,518 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-22 01:31:14,518 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:31:14,518 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:31:14,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:31:14,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:31:14,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:31:14,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:14,520 INFO L87 Difference]: Start difference. First operand 3749 states. Second operand 3 states. [2020-10-22 01:31:14,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:31:14,592 INFO L93 Difference]: Finished difference Result 2133 states and 7537 transitions. [2020-10-22 01:31:14,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:31:14,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-22 01:31:14,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:31:14,616 INFO L225 Difference]: With dead ends: 2133 [2020-10-22 01:31:14,617 INFO L226 Difference]: Without dead ends: 2133 [2020-10-22 01:31:14,617 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:14,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2133 states. [2020-10-22 01:31:14,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2133 to 2133. [2020-10-22 01:31:14,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2133 states. [2020-10-22 01:31:14,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2133 states to 2133 states and 7537 transitions. [2020-10-22 01:31:14,780 INFO L78 Accepts]: Start accepts. Automaton has 2133 states and 7537 transitions. Word has length 4 [2020-10-22 01:31:14,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:31:14,780 INFO L481 AbstractCegarLoop]: Abstraction has 2133 states and 7537 transitions. [2020-10-22 01:31:14,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:31:14,780 INFO L276 IsEmpty]: Start isEmpty. Operand 2133 states and 7537 transitions. [2020-10-22 01:31:14,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 01:31:14,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:14,781 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:31:14,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 01:31:14,782 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 01:31:14,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:14,782 INFO L82 PathProgramCache]: Analyzing trace with hash -2033150772, now seen corresponding path program 1 times [2020-10-22 01:31:14,786 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:14,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795428715] [2020-10-22 01:31:14,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:14,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:31:14,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:31:14,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795428715] [2020-10-22 01:31:14,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:31:14,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:31:14,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [845839816] [2020-10-22 01:31:14,820 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:31:14,821 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:31:14,822 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-10-22 01:31:14,823 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:31:14,857 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:31:14,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:31:14,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:31:14,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:31:14,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:14,858 INFO L87 Difference]: Start difference. First operand 2133 states and 7537 transitions. Second operand 3 states. [2020-10-22 01:31:14,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:31:14,905 INFO L93 Difference]: Finished difference Result 1279 states and 4608 transitions. [2020-10-22 01:31:14,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:31:14,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 01:31:14,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:31:14,916 INFO L225 Difference]: With dead ends: 1279 [2020-10-22 01:31:14,917 INFO L226 Difference]: Without dead ends: 1279 [2020-10-22 01:31:14,917 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:14,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2020-10-22 01:31:14,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1279. [2020-10-22 01:31:14,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1279 states. [2020-10-22 01:31:14,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 4608 transitions. [2020-10-22 01:31:14,967 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 4608 transitions. Word has length 10 [2020-10-22 01:31:14,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:31:14,967 INFO L481 AbstractCegarLoop]: Abstraction has 1279 states and 4608 transitions. [2020-10-22 01:31:14,968 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:31:14,968 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 4608 transitions. [2020-10-22 01:31:14,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 01:31:14,971 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:14,971 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-10-22 01:31:14,971 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 01:31:14,971 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 01:31:14,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:14,972 INFO L82 PathProgramCache]: Analyzing trace with hash 180807889, now seen corresponding path program 1 times [2020-10-22 01:31:14,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:14,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400006195] [2020-10-22 01:31:14,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:31:14,985 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:31:14,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:31:14,994 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:31:15,000 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:31:15,000 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:31:15,000 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 01:31:15,001 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:31:15,001 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-22 01:31:15,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,009 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,010 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,010 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,010 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,011 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,012 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,012 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,012 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,013 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,013 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,014 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,014 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,015 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,016 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,016 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,017 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,017 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,018 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,018 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,019 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,019 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,019 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,019 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,020 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,020 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,020 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,020 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,021 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,022 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,022 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,023 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,024 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,024 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,024 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,024 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,024 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,026 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,027 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,027 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,028 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,028 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,028 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,028 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,029 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,029 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:15,030 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:31:15,030 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-22 01:31:15,030 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:31:15,030 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:31:15,031 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:31:15,031 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:31:15,031 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:31:15,031 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:31:15,031 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:31:15,031 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:31:15,032 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:31:15,033 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 62 transitions, 169 flow [2020-10-22 01:31:15,033 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 62 transitions, 169 flow [2020-10-22 01:31:15,033 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 72 places, 62 transitions, 169 flow [2020-10-22 01:31:15,048 INFO L129 PetriNetUnfolder]: 6/106 cut-off events. [2020-10-22 01:31:15,048 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-22 01:31:15,050 INFO L80 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 106 events. 6/106 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 221 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 102. Up to 12 conditions per place. [2020-10-22 01:31:15,053 INFO L116 LiptonReduction]: Number of co-enabled transitions 1820 [2020-10-22 01:31:15,959 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-22 01:31:16,024 INFO L131 LiptonReduction]: Checked pairs total: 4979 [2020-10-22 01:31:16,024 INFO L133 LiptonReduction]: Total number of compositions: 38 [2020-10-22 01:31:16,025 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 30 transitions, 105 flow [2020-10-22 01:31:18,029 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 18749 states. [2020-10-22 01:31:18,029 INFO L276 IsEmpty]: Start isEmpty. Operand 18749 states. [2020-10-22 01:31:18,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-22 01:31:18,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:18,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-22 01:31:18,030 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:31:18,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:18,030 INFO L82 PathProgramCache]: Analyzing trace with hash 15900553, now seen corresponding path program 1 times [2020-10-22 01:31:18,031 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:18,032 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1715474839] [2020-10-22 01:31:18,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:18,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:31:18,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:31:18,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1715474839] [2020-10-22 01:31:18,096 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:31:18,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 01:31:18,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1097060143] [2020-10-22 01:31:18,096 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:31:18,097 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:31:18,097 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-22 01:31:18,097 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:31:18,097 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:31:18,098 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:31:18,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:31:18,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:31:18,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:18,098 INFO L87 Difference]: Start difference. First operand 18749 states. Second operand 3 states. [2020-10-22 01:31:18,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:31:18,281 INFO L93 Difference]: Finished difference Result 11059 states and 47649 transitions. [2020-10-22 01:31:18,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:31:18,282 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-22 01:31:18,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:31:18,421 INFO L225 Difference]: With dead ends: 11059 [2020-10-22 01:31:18,421 INFO L226 Difference]: Without dead ends: 11059 [2020-10-22 01:31:18,424 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:19,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11059 states. [2020-10-22 01:31:19,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11059 to 11059. [2020-10-22 01:31:19,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11059 states. [2020-10-22 01:31:19,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11059 states to 11059 states and 47649 transitions. [2020-10-22 01:31:19,891 INFO L78 Accepts]: Start accepts. Automaton has 11059 states and 47649 transitions. Word has length 4 [2020-10-22 01:31:19,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:31:19,891 INFO L481 AbstractCegarLoop]: Abstraction has 11059 states and 47649 transitions. [2020-10-22 01:31:19,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:31:19,891 INFO L276 IsEmpty]: Start isEmpty. Operand 11059 states and 47649 transitions. [2020-10-22 01:31:19,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 01:31:19,895 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:19,895 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:31:19,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-22 01:31:19,895 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:31:19,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:19,896 INFO L82 PathProgramCache]: Analyzing trace with hash 1633590214, now seen corresponding path program 1 times [2020-10-22 01:31:19,897 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:19,897 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815914519] [2020-10-22 01:31:19,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:19,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:31:19,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:31:19,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815914519] [2020-10-22 01:31:19,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:31:19,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:31:19,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1025575697] [2020-10-22 01:31:19,944 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:31:19,947 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:31:19,952 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-10-22 01:31:19,952 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:31:20,014 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:31:20,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:31:20,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:31:20,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:31:20,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:20,015 INFO L87 Difference]: Start difference. First operand 11059 states and 47649 transitions. Second operand 3 states. [2020-10-22 01:31:20,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:31:20,173 INFO L93 Difference]: Finished difference Result 5119 states and 22272 transitions. [2020-10-22 01:31:20,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:31:20,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 01:31:20,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:31:20,206 INFO L225 Difference]: With dead ends: 5119 [2020-10-22 01:31:20,207 INFO L226 Difference]: Without dead ends: 5119 [2020-10-22 01:31:20,208 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:20,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5119 states. [2020-10-22 01:31:20,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5119 to 5119. [2020-10-22 01:31:20,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5119 states. [2020-10-22 01:31:20,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5119 states to 5119 states and 22272 transitions. [2020-10-22 01:31:20,621 INFO L78 Accepts]: Start accepts. Automaton has 5119 states and 22272 transitions. Word has length 10 [2020-10-22 01:31:20,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:31:20,621 INFO L481 AbstractCegarLoop]: Abstraction has 5119 states and 22272 transitions. [2020-10-22 01:31:20,621 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:31:20,621 INFO L276 IsEmpty]: Start isEmpty. Operand 5119 states and 22272 transitions. [2020-10-22 01:31:20,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 01:31:20,624 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:20,624 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:31:20,624 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-22 01:31:20,625 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:31:20,625 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:20,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1271196855, now seen corresponding path program 1 times [2020-10-22 01:31:20,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:20,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744049287] [2020-10-22 01:31:20,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:20,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:31:20,640 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:31:20,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:31:20,649 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:31:20,655 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:31:20,656 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:31:20,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-22 01:31:20,656 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:31:20,657 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-22 01:31:20,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,665 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,666 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,666 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,666 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,666 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,666 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,666 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,666 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,667 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,667 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,667 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,667 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,667 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,667 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,668 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,668 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,669 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,669 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,669 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,669 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,669 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,669 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,669 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,670 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,671 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,671 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,671 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,671 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,671 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,671 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,671 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,672 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,673 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,673 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,673 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,673 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,673 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,673 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,673 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,674 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,674 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,674 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,674 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,674 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,674 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,675 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,675 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,676 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,676 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,677 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,677 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,678 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,678 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,679 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,680 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,680 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,680 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,681 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,681 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,682 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,682 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,682 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,682 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,683 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,683 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,684 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,684 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,684 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,684 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,685 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,686 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,686 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:31:20,687 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:31:20,688 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-22 01:31:20,688 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:31:20,688 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:31:20,688 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:31:20,688 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:31:20,688 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:31:20,688 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:31:20,689 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:31:20,689 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:31:20,690 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:31:20,690 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 82 places, 70 transitions, 200 flow [2020-10-22 01:31:20,690 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 82 places, 70 transitions, 200 flow [2020-10-22 01:31:20,690 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 82 places, 70 transitions, 200 flow [2020-10-22 01:31:20,706 INFO L129 PetriNetUnfolder]: 7/123 cut-off events. [2020-10-22 01:31:20,706 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-22 01:31:20,708 INFO L80 FinitePrefix]: Finished finitePrefix Result has 163 conditions, 123 events. 7/123 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 267 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 126. Up to 14 conditions per place. [2020-10-22 01:31:20,711 INFO L116 LiptonReduction]: Number of co-enabled transitions 2520 [2020-10-22 01:31:21,607 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-22 01:31:21,675 INFO L131 LiptonReduction]: Checked pairs total: 6225 [2020-10-22 01:31:21,675 INFO L133 LiptonReduction]: Total number of compositions: 42 [2020-10-22 01:31:21,676 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 48 places, 35 transitions, 130 flow [2020-10-22 01:31:54,205 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 93749 states. [2020-10-22 01:31:54,205 INFO L276 IsEmpty]: Start isEmpty. Operand 93749 states. [2020-10-22 01:31:54,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-10-22 01:31:54,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:31:54,205 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-10-22 01:31:54,206 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:31:54,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:31:54,206 INFO L82 PathProgramCache]: Analyzing trace with hash 19593497, now seen corresponding path program 1 times [2020-10-22 01:31:54,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:31:54,207 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516619456] [2020-10-22 01:31:54,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:31:54,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:31:54,273 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:31:54,274 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516619456] [2020-10-22 01:31:54,274 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:31:54,274 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-22 01:31:54,274 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1762684085] [2020-10-22 01:31:54,275 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:31:54,275 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:31:54,275 INFO L252 McrAutomatonBuilder]: Finished intersection with 5 states and 4 transitions. [2020-10-22 01:31:54,276 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:31:54,276 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:31:54,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:31:54,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:31:54,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:31:54,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:31:54,277 INFO L87 Difference]: Start difference. First operand 93749 states. Second operand 3 states. [2020-10-22 01:31:56,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:31:56,342 INFO L93 Difference]: Finished difference Result 57747 states and 295020 transitions. [2020-10-22 01:31:56,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:31:56,343 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-10-22 01:31:56,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:31:56,748 INFO L225 Difference]: With dead ends: 57747 [2020-10-22 01:31:56,748 INFO L226 Difference]: Without dead ends: 57747 [2020-10-22 01:31:56,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:32:03,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57747 states. [2020-10-22 01:32:04,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57747 to 57747. [2020-10-22 01:32:04,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57747 states. [2020-10-22 01:32:05,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57747 states to 57747 states and 295020 transitions. [2020-10-22 01:32:05,150 INFO L78 Accepts]: Start accepts. Automaton has 57747 states and 295020 transitions. Word has length 4 [2020-10-22 01:32:05,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:32:05,151 INFO L481 AbstractCegarLoop]: Abstraction has 57747 states and 295020 transitions. [2020-10-22 01:32:05,151 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:32:05,151 INFO L276 IsEmpty]: Start isEmpty. Operand 57747 states and 295020 transitions. [2020-10-22 01:32:05,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 01:32:05,151 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:32:05,151 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:32:05,152 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-22 01:32:05,152 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:32:05,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:32:05,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1310985457, now seen corresponding path program 1 times [2020-10-22 01:32:05,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:32:05,153 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52475028] [2020-10-22 01:32:05,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:32:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:32:05,180 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-22 01:32:05,181 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52475028] [2020-10-22 01:32:05,181 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:32:05,181 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:32:05,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1062146114] [2020-10-22 01:32:05,181 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:32:05,182 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:32:05,184 INFO L252 McrAutomatonBuilder]: Finished intersection with 20 states and 28 transitions. [2020-10-22 01:32:05,184 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:32:05,245 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:32:05,245 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:32:05,245 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:32:05,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:32:05,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:32:05,246 INFO L87 Difference]: Start difference. First operand 57747 states and 295020 transitions. Second operand 3 states. [2020-10-22 01:32:05,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:32:05,421 INFO L93 Difference]: Finished difference Result 20479 states and 104448 transitions. [2020-10-22 01:32:05,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:32:05,421 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-22 01:32:05,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:32:05,513 INFO L225 Difference]: With dead ends: 20479 [2020-10-22 01:32:05,513 INFO L226 Difference]: Without dead ends: 20479 [2020-10-22 01:32:05,514 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:32:06,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20479 states. [2020-10-22 01:32:06,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20479 to 20479. [2020-10-22 01:32:06,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20479 states. [2020-10-22 01:32:06,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20479 states to 20479 states and 104448 transitions. [2020-10-22 01:32:06,497 INFO L78 Accepts]: Start accepts. Automaton has 20479 states and 104448 transitions. Word has length 10 [2020-10-22 01:32:06,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:32:06,497 INFO L481 AbstractCegarLoop]: Abstraction has 20479 states and 104448 transitions. [2020-10-22 01:32:06,497 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:32:06,497 INFO L276 IsEmpty]: Start isEmpty. Operand 20479 states and 104448 transitions. [2020-10-22 01:32:06,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-10-22 01:32:06,505 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:32:06,505 INFO L422 BasicCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:32:06,505 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-22 01:32:06,505 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:32:06,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:32:06,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1465323526, now seen corresponding path program 1 times [2020-10-22 01:32:06,506 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:32:06,506 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442817277] [2020-10-22 01:32:06,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:32:06,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:32:06,518 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:32:06,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:32:06,526 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:32:06,532 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:32:06,533 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:32:06,533 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-22 01:32:06,533 WARN L371 ceAbstractionStarter]: 6 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:32:06,534 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 7 thread instances. [2020-10-22 01:32:06,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,548 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,548 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,549 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,550 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,550 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,551 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,551 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,552 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,552 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,553 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,553 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,554 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,555 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,555 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,564 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,568 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,573 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,573 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,573 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,574 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,574 WARN L313 ript$VariableManager]: TermVariabe thr1Thread7of7ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread7of7ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:32:06,575 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:32:06,575 INFO L253 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2020-10-22 01:32:06,576 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:32:06,576 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:32:06,576 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:32:06,576 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:32:06,576 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:32:06,576 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:32:06,576 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:32:06,576 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:32:06,577 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:32:06,577 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 78 transitions, 233 flow [2020-10-22 01:32:06,578 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 78 transitions, 233 flow [2020-10-22 01:32:06,578 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 92 places, 78 transitions, 233 flow [2020-10-22 01:32:06,594 INFO L129 PetriNetUnfolder]: 8/140 cut-off events. [2020-10-22 01:32:06,594 INFO L130 PetriNetUnfolder]: For 77/77 co-relation queries the response was YES. [2020-10-22 01:32:06,595 INFO L80 FinitePrefix]: Finished finitePrefix Result has 190 conditions, 140 events. 8/140 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 309 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 152. Up to 16 conditions per place. [2020-10-22 01:32:06,600 INFO L116 LiptonReduction]: Number of co-enabled transitions 3332 [2020-10-22 01:32:07,579 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2020-10-22 01:32:07,655 INFO L131 LiptonReduction]: Checked pairs total: 8001 [2020-10-22 01:32:07,655 INFO L133 LiptonReduction]: Total number of compositions: 46 [2020-10-22 01:32:07,655 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 40 transitions, 157 flow Received shutdown request... [2020-10-22 01:35:35,211 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-22 01:35:35,214 WARN L235 ceAbstractionStarter]: Timeout [2020-10-22 01:35:35,214 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 01:35:35 BasicIcfg [2020-10-22 01:35:35,214 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 01:35:35,216 INFO L168 Benchmark]: Toolchain (without parser) took 267112.43 ms. Allocated memory was 138.4 MB in the beginning and 2.6 GB in the end (delta: 2.5 GB). Free memory was 100.1 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2020-10-22 01:35:35,216 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-22 01:35:35,217 INFO L168 Benchmark]: CACSL2BoogieTranslator took 811.74 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.3 MB in the beginning and 156.9 MB in the end (delta: -57.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2020-10-22 01:35:35,218 INFO L168 Benchmark]: Boogie Procedure Inliner took 53.64 ms. Allocated memory is still 201.3 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-22 01:35:35,218 INFO L168 Benchmark]: Boogie Preprocessor took 28.16 ms. Allocated memory is still 201.3 MB. Free memory was 154.8 MB in the beginning and 153.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 01:35:35,228 INFO L168 Benchmark]: RCFGBuilder took 495.68 ms. Allocated memory is still 201.3 MB. Free memory was 153.4 MB in the beginning and 132.3 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2020-10-22 01:35:35,228 INFO L168 Benchmark]: TraceAbstraction took 265712.49 ms. Allocated memory was 201.3 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 132.3 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. [2020-10-22 01:35:35,234 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 811.74 ms. Allocated memory was 138.4 MB in the beginning and 201.3 MB in the end (delta: 62.9 MB). Free memory was 99.3 MB in the beginning and 156.9 MB in the end (delta: -57.6 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 53.64 ms. Allocated memory is still 201.3 MB. Free memory was 156.9 MB in the beginning and 154.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.16 ms. Allocated memory is still 201.3 MB. Free memory was 154.8 MB in the beginning and 153.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 495.68 ms. Allocated memory is still 201.3 MB. Free memory was 153.4 MB in the beginning and 132.3 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 265712.49 ms. Allocated memory was 201.3 MB in the beginning and 2.6 GB in the end (delta: 2.4 GB). Free memory was 132.3 MB in the beginning and 1.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 3.2 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 64 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 2 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.0s, 32 PlacesBefore, 11 PlacesAfterwards, 30 TransitionsBefore, 8 TransitionsAfterwards, 140 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 10 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 24 TotalNumberOfCompositions, 112 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 176 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 30 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.7s, 42 PlacesBefore, 20 PlacesAfterwards, 38 TransitionsBefore, 15 TransitionsAfterwards, 392 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 12 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 26 TotalNumberOfCompositions, 916 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 339 VarBasedMoverChecksPositive, 20 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 56 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.7s, 52 PlacesBefore, 27 PlacesAfterwards, 46 TransitionsBefore, 20 TransitionsAfterwards, 756 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 16 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 30 TotalNumberOfCompositions, 1562 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 495 VarBasedMoverChecksPositive, 24 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 70 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.8s, 62 PlacesBefore, 34 PlacesAfterwards, 54 TransitionsBefore, 25 TransitionsAfterwards, 1232 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 34 TotalNumberOfCompositions, 2835 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 777 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 109 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.9s, 72 PlacesBefore, 41 PlacesAfterwards, 62 TransitionsBefore, 30 TransitionsAfterwards, 1820 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 24 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 38 TotalNumberOfCompositions, 4979 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1022 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 105 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.9s, 82 PlacesBefore, 48 PlacesAfterwards, 70 TransitionsBefore, 35 TransitionsAfterwards, 2520 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 42 TotalNumberOfCompositions, 6225 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1346 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 150 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.0s, 92 PlacesBefore, 55 PlacesAfterwards, 78 TransitionsBefore, 40 TransitionsAfterwards, 3332 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 46 TotalNumberOfCompositions, 8001 MoverChecksTotal - TimeoutResultAtElement [Line: 12]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 12). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 55 places, 40 transitions, 157 flow. Already constructed 262930 states. Currently 56261 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 29 locations, 1 error locations. Started 7 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 265.4s, OverallIterations: 16, TraceHistogramMax: 7, AutomataDifference: 3.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 248.8s, HoareTripleCheckerStatistics: 237 SDtfs, 113 SDslu, 83 SDs, 0 SdLazy, 122 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93749occurred 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: 11.6s AutomataMinimizationTime, 10 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 145 NumberOfCodeBlocks, 145 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1026 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 8/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown