/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/13_unverif.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 01:22:43,038 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 01:22:43,041 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 01:22:43,078 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 01:22:43,078 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 01:22:43,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 01:22:43,088 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 01:22:43,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 01:22:43,094 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 01:22:43,098 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 01:22:43,099 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 01:22:43,100 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 01:22:43,100 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 01:22:43,103 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 01:22:43,105 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 01:22:43,107 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 01:22:43,108 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 01:22:43,109 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 01:22:43,110 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 01:22:43,117 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 01:22:43,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 01:22:43,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 01:22:43,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 01:22:43,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 01:22:43,132 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 01:22:43,138 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 01:22:43,138 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 01:22:43,140 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 01:22:43,141 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 01:22:43,142 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 01:22:43,142 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 01:22:43,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 01:22:43,143 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 01:22:43,143 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 01:22:43,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 01:22:43,145 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 01:22:43,146 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 01:22:43,186 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 01:22:43,187 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 01:22:43,188 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 01:22:43,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 01:22:43,189 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 01:22:43,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 01:22:43,189 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 01:22:43,189 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 01:22:43,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 01:22:43,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 01:22:43,191 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 01:22:43,191 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 01:22:43,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 01:22:43,192 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 01:22:43,192 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 01:22:43,192 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 01:22:43,192 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 01:22:43,192 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 01:22:43,192 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 01:22:43,193 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 01:22:43,193 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 01:22:43,193 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 01:22:43,193 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 01:22:43,193 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 01:22:43,194 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 01:22:43,194 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 01:22:43,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 01:22:43,194 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 01:22:43,195 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 01:22:43,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 01:22:43,195 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 01:22:43,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 01:22:43,512 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 01:22:43,516 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 01:22:43,518 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 01:22:43,518 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 01:22:43,519 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/13_unverif.i [2020-10-22 01:22:43,588 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3172d1d37/e33c8dc3d2384d898af5aac298a30a00/FLAG561021579 [2020-10-22 01:22:44,061 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 01:22:44,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/13_unverif.i [2020-10-22 01:22:44,078 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3172d1d37/e33c8dc3d2384d898af5aac298a30a00/FLAG561021579 [2020-10-22 01:22:44,397 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3172d1d37/e33c8dc3d2384d898af5aac298a30a00 [2020-10-22 01:22:44,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 01:22:44,411 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 01:22:44,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 01:22:44,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 01:22:44,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 01:22:44,416 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:22:44" (1/1) ... [2020-10-22 01:22:44,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5d246408 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:22:44, skipping insertion in model container [2020-10-22 01:22:44,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:22:44" (1/1) ... [2020-10-22 01:22:44,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 01:22:44,469 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 01:22:44,913 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:22:44,923 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 01:22:44,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:22:45,046 INFO L208 MainTranslator]: Completed translation [2020-10-22 01:22:45,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:22:45 WrapperNode [2020-10-22 01:22:45,047 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 01:22:45,048 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 01:22:45,048 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 01:22:45,048 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 01:22:45,057 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:22:45" (1/1) ... [2020-10-22 01:22:45,072 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:22:45" (1/1) ... [2020-10-22 01:22:45,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 01:22:45,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 01:22:45,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 01:22:45,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 01:22:45,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:22:45" (1/1) ... [2020-10-22 01:22:45,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:22:45" (1/1) ... [2020-10-22 01:22:45,104 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:22:45" (1/1) ... [2020-10-22 01:22:45,105 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:22:45" (1/1) ... [2020-10-22 01:22:45,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:22:45" (1/1) ... [2020-10-22 01:22:45,114 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:22:45" (1/1) ... [2020-10-22 01:22:45,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:22:45" (1/1) ... [2020-10-22 01:22:45,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 01:22:45,118 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 01:22:45,118 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 01:22:45,118 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 01:22:45,119 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:22:45" (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 01:22:45,179 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-22 01:22:45,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-22 01:22:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 01:22:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 01:22:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 01:22:45,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 01:22:45,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 01:22:45,181 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 01:22:45,182 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 01:22:45,578 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 01:22:45,578 INFO L298 CfgBuilder]: Removed 7 assume(true) statements. [2020-10-22 01:22:45,580 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:22:45 BoogieIcfgContainer [2020-10-22 01:22:45,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 01:22:45,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 01:22:45,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 01:22:45,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 01:22:45,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 01:22:44" (1/3) ... [2020-10-22 01:22:45,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d89165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:22:45, skipping insertion in model container [2020-10-22 01:22:45,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:22:45" (2/3) ... [2020-10-22 01:22:45,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59d89165 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:22:45, skipping insertion in model container [2020-10-22 01:22:45,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:22:45" (3/3) ... [2020-10-22 01:22:45,588 INFO L111 eAbstractionObserver]: Analyzing ICFG 13_unverif.i [2020-10-22 01:22:45,597 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 01:22:45,597 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 01:22:45,604 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-22 01:22:45,605 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 01:22:45,625 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,625 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,626 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,627 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,627 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,627 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,628 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,628 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,630 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,630 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,631 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,631 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,631 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,632 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,632 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,632 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,637 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,637 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,637 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,638 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,638 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,639 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,639 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,639 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,639 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:45,645 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:22:45,659 INFO L253 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2020-10-22 01:22:45,676 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:22:45,677 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:22:45,677 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:22:45,677 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:22:45,677 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:22:45,677 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:22:45,677 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:22:45,678 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:22:45,689 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:22:45,690 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 41 transitions, 87 flow [2020-10-22 01:22:45,693 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 40 places, 41 transitions, 87 flow [2020-10-22 01:22:45,694 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 40 places, 41 transitions, 87 flow [2020-10-22 01:22:45,729 INFO L129 PetriNetUnfolder]: 5/49 cut-off events. [2020-10-22 01:22:45,729 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 01:22:45,734 INFO L80 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 49 events. 5/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 27. Up to 4 conditions per place. [2020-10-22 01:22:45,735 INFO L116 LiptonReduction]: Number of co-enabled transitions 360 [2020-10-22 01:22:46,774 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-22 01:22:46,911 INFO L131 LiptonReduction]: Checked pairs total: 359 [2020-10-22 01:22:46,912 INFO L133 LiptonReduction]: Total number of compositions: 42 [2020-10-22 01:22:46,919 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 12 places, 10 transitions, 25 flow [2020-10-22 01:22:46,928 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 24 states. [2020-10-22 01:22:46,930 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-22 01:22:46,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-22 01:22:46,936 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:46,937 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-22 01:22:46,937 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 01:22:46,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:46,943 INFO L82 PathProgramCache]: Analyzing trace with hash 206391350, now seen corresponding path program 1 times [2020-10-22 01:22:46,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:46,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556166690] [2020-10-22 01:22:46,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:47,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:22:47,289 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 01:22:47,289 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556166690] [2020-10-22 01:22:47,291 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:22:47,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:22:47,292 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1452786782] [2020-10-22 01:22:47,293 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:22:47,297 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:22:47,313 INFO L252 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-22 01:22:47,314 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:22:47,319 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:22:47,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 01:22:47,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:22:47,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 01:22:47,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:22:47,338 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 4 states. [2020-10-22 01:22:47,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:22:47,373 INFO L93 Difference]: Finished difference Result 23 states and 38 transitions. [2020-10-22 01:22:47,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 01:22:47,376 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2020-10-22 01:22:47,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:22:47,401 INFO L225 Difference]: With dead ends: 23 [2020-10-22 01:22:47,401 INFO L226 Difference]: Without dead ends: 23 [2020-10-22 01:22:47,402 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:22:47,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-10-22 01:22:47,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-10-22 01:22:47,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-10-22 01:22:47,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2020-10-22 01:22:47,449 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 38 transitions. Word has length 5 [2020-10-22 01:22:47,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:22:47,450 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 38 transitions. [2020-10-22 01:22:47,450 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 01:22:47,450 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2020-10-22 01:22:47,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 01:22:47,451 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:47,451 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-22 01:22:47,452 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 01:22:47,452 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 01:22:47,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:47,453 INFO L82 PathProgramCache]: Analyzing trace with hash 2103165344, now seen corresponding path program 1 times [2020-10-22 01:22:47,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:47,458 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465375280] [2020-10-22 01:22:47,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:22:47,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:22:47,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465375280] [2020-10-22 01:22:47,652 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [773951795] [2020-10-22 01:22:47,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 01:22:47,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:22:47,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 11 conjunts are in the unsatisfiable core [2020-10-22 01:22:47,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 01:22:47,749 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:22:47,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-22 01:22:47,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 4 [2020-10-22 01:22:47,751 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [249177261] [2020-10-22 01:22:47,751 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:22:47,752 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:22:47,754 INFO L252 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-22 01:22:47,754 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:22:47,754 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:22:47,755 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 01:22:47,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:22:47,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 01:22:47,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-22 01:22:47,756 INFO L87 Difference]: Start difference. First operand 23 states and 38 transitions. Second operand 5 states. [2020-10-22 01:22:47,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:22:47,810 INFO L93 Difference]: Finished difference Result 19 states and 31 transitions. [2020-10-22 01:22:47,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-22 01:22:47,810 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2020-10-22 01:22:47,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:22:47,811 INFO L225 Difference]: With dead ends: 19 [2020-10-22 01:22:47,811 INFO L226 Difference]: Without dead ends: 19 [2020-10-22 01:22:47,812 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 01:22:47,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-10-22 01:22:47,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 15. [2020-10-22 01:22:47,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-22 01:22:47,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 24 transitions. [2020-10-22 01:22:47,816 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 24 transitions. Word has length 6 [2020-10-22 01:22:47,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:22:47,816 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 24 transitions. [2020-10-22 01:22:47,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 01:22:47,816 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 24 transitions. [2020-10-22 01:22:47,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-22 01:22:47,817 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:47,817 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-10-22 01:22:48,018 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-22 01:22:48,019 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 01:22:48,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:48,019 INFO L82 PathProgramCache]: Analyzing trace with hash 2103072290, now seen corresponding path program 1 times [2020-10-22 01:22:48,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:48,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529912698] [2020-10-22 01:22:48,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:48,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:22:48,051 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:22:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:22:48,060 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:22:48,080 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:22:48,080 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:22:48,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 01:22:48,082 WARN L371 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:22:48,082 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-10-22 01:22:48,092 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,093 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,093 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,093 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,093 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,093 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,093 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,094 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,094 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,095 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,095 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,095 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,095 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,096 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,097 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,098 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,098 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,099 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,099 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,100 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,101 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,101 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,101 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,102 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,102 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,102 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,102 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,102 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,103 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,109 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,110 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,110 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,110 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,111 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,111 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,111 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,111 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,116 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,117 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,117 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,118 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,118 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:48,119 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:22:48,120 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 01:22:48,120 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:22:48,120 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:22:48,120 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:22:48,120 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:22:48,120 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:22:48,121 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:22:48,121 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:22:48,121 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:22:48,124 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:22:48,124 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 60 transitions, 132 flow [2020-10-22 01:22:48,124 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 60 transitions, 132 flow [2020-10-22 01:22:48,124 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 58 places, 60 transitions, 132 flow [2020-10-22 01:22:48,159 INFO L129 PetriNetUnfolder]: 9/77 cut-off events. [2020-10-22 01:22:48,159 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-22 01:22:48,161 INFO L80 FinitePrefix]: Finished finitePrefix Result has 87 conditions, 77 events. 9/77 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 163 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 50. Up to 6 conditions per place. [2020-10-22 01:22:48,165 INFO L116 LiptonReduction]: Number of co-enabled transitions 1404 [2020-10-22 01:22:48,954 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-22 01:22:49,031 INFO L131 LiptonReduction]: Checked pairs total: 3226 [2020-10-22 01:22:49,032 INFO L133 LiptonReduction]: Total number of compositions: 51 [2020-10-22 01:22:49,032 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 24 transitions, 60 flow [2020-10-22 01:22:49,059 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 277 states. [2020-10-22 01:22:49,059 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states. [2020-10-22 01:22:49,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 01:22:49,060 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:49,067 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:22:49,067 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:22:49,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:49,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1672982719, now seen corresponding path program 1 times [2020-10-22 01:22:49,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:49,070 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973651304] [2020-10-22 01:22:49,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:49,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:22:49,130 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 01:22:49,130 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973651304] [2020-10-22 01:22:49,130 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:22:49,130 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:22:49,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1494476005] [2020-10-22 01:22:49,131 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:22:49,132 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:22:49,133 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-22 01:22:49,133 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:22:49,133 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:22:49,134 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 01:22:49,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:22:49,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 01:22:49,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:22:49,134 INFO L87 Difference]: Start difference. First operand 277 states. Second operand 5 states. [2020-10-22 01:22:49,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:22:49,193 INFO L93 Difference]: Finished difference Result 318 states and 849 transitions. [2020-10-22 01:22:49,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 01:22:49,194 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-22 01:22:49,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:22:49,202 INFO L225 Difference]: With dead ends: 318 [2020-10-22 01:22:49,202 INFO L226 Difference]: Without dead ends: 318 [2020-10-22 01:22:49,203 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:22:49,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2020-10-22 01:22:49,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 266. [2020-10-22 01:22:49,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-10-22 01:22:49,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 710 transitions. [2020-10-22 01:22:49,277 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 710 transitions. Word has length 7 [2020-10-22 01:22:49,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:22:49,278 INFO L481 AbstractCegarLoop]: Abstraction has 266 states and 710 transitions. [2020-10-22 01:22:49,281 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 01:22:49,281 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 710 transitions. [2020-10-22 01:22:49,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 01:22:49,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:49,282 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:22:49,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 01:22:49,283 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:22:49,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:49,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1418598805, now seen corresponding path program 1 times [2020-10-22 01:22:49,295 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:49,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231251280] [2020-10-22 01:22:49,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:49,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:22:49,395 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 01:22:49,396 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231251280] [2020-10-22 01:22:49,396 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:22:49,396 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:22:49,397 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [755926130] [2020-10-22 01:22:49,397 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:22:49,397 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:22:49,399 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 01:22:49,399 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:22:49,399 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:22:49,399 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 01:22:49,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:22:49,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 01:22:49,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:22:49,400 INFO L87 Difference]: Start difference. First operand 266 states and 710 transitions. Second operand 4 states. [2020-10-22 01:22:49,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:22:49,489 INFO L93 Difference]: Finished difference Result 284 states and 764 transitions. [2020-10-22 01:22:49,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 01:22:49,490 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 01:22:49,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:22:49,493 INFO L225 Difference]: With dead ends: 284 [2020-10-22 01:22:49,493 INFO L226 Difference]: Without dead ends: 284 [2020-10-22 01:22:49,493 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:22:49,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2020-10-22 01:22:49,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 230. [2020-10-22 01:22:49,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-10-22 01:22:49,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 620 transitions. [2020-10-22 01:22:49,511 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 620 transitions. Word has length 9 [2020-10-22 01:22:49,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:22:49,511 INFO L481 AbstractCegarLoop]: Abstraction has 230 states and 620 transitions. [2020-10-22 01:22:49,511 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 01:22:49,511 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 620 transitions. [2020-10-22 01:22:49,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 01:22:49,512 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:49,512 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-10-22 01:22:49,512 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 01:22:49,513 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:22:49,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:49,513 INFO L82 PathProgramCache]: Analyzing trace with hash -1770873253, now seen corresponding path program 1 times [2020-10-22 01:22:49,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:49,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1507859018] [2020-10-22 01:22:49,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:22:49,526 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:22:49,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:22:49,535 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:22:49,541 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:22:49,541 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:22:49,541 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 01:22:49,542 WARN L371 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:22:49,545 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-10-22 01:22:49,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,557 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,557 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,558 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,558 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,558 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,558 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,559 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,559 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,560 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,561 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,561 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,562 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,562 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,563 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,564 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,568 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,569 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,569 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,570 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,570 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,571 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,571 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,572 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,572 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,572 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,573 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,574 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,574 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,575 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,575 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,575 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,576 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,576 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,576 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,577 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,577 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,577 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,577 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,577 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,577 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:49,578 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:22:49,579 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-22 01:22:49,579 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:22:49,579 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:22:49,579 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:22:49,579 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:22:49,580 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:22:49,580 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:22:49,580 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:22:49,580 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:22:49,584 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:22:49,584 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 79 transitions, 179 flow [2020-10-22 01:22:49,585 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 79 transitions, 179 flow [2020-10-22 01:22:49,585 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 76 places, 79 transitions, 179 flow [2020-10-22 01:22:49,603 INFO L129 PetriNetUnfolder]: 13/105 cut-off events. [2020-10-22 01:22:49,604 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-10-22 01:22:49,605 INFO L80 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 105 events. 13/105 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 271 event pairs, 0 based on Foata normal form. 0/85 useless extension candidates. Maximal degree in co-relation 81. Up to 8 conditions per place. [2020-10-22 01:22:49,609 INFO L116 LiptonReduction]: Number of co-enabled transitions 3132 [2020-10-22 01:22:50,659 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-10-22 01:22:50,730 INFO L131 LiptonReduction]: Checked pairs total: 6943 [2020-10-22 01:22:50,730 INFO L133 LiptonReduction]: Total number of compositions: 65 [2020-10-22 01:22:50,730 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 33 transitions, 87 flow [2020-10-22 01:22:50,844 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1876 states. [2020-10-22 01:22:50,844 INFO L276 IsEmpty]: Start isEmpty. Operand 1876 states. [2020-10-22 01:22:50,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 01:22:50,845 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:50,845 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:22:50,845 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:22:50,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:50,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1134859347, now seen corresponding path program 1 times [2020-10-22 01:22:50,848 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:50,849 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57051189] [2020-10-22 01:22:50,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:50,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:22:50,895 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 01:22:50,896 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57051189] [2020-10-22 01:22:50,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:22:50,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:22:50,897 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [630384225] [2020-10-22 01:22:50,897 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:22:50,897 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:22:50,898 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-22 01:22:50,898 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:22:50,899 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:22:50,899 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 01:22:50,899 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:22:50,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 01:22:50,899 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:22:50,900 INFO L87 Difference]: Start difference. First operand 1876 states. Second operand 5 states. [2020-10-22 01:22:51,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:22:51,002 INFO L93 Difference]: Finished difference Result 2198 states and 8046 transitions. [2020-10-22 01:22:51,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 01:22:51,002 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-22 01:22:51,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:22:51,025 INFO L225 Difference]: With dead ends: 2198 [2020-10-22 01:22:51,025 INFO L226 Difference]: Without dead ends: 2198 [2020-10-22 01:22:51,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:22:51,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2198 states. [2020-10-22 01:22:51,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2198 to 1711. [2020-10-22 01:22:51,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1711 states. [2020-10-22 01:22:51,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1711 states to 1711 states and 6280 transitions. [2020-10-22 01:22:51,111 INFO L78 Accepts]: Start accepts. Automaton has 1711 states and 6280 transitions. Word has length 7 [2020-10-22 01:22:51,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:22:51,111 INFO L481 AbstractCegarLoop]: Abstraction has 1711 states and 6280 transitions. [2020-10-22 01:22:51,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 01:22:51,111 INFO L276 IsEmpty]: Start isEmpty. Operand 1711 states and 6280 transitions. [2020-10-22 01:22:51,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 01:22:51,112 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:51,112 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:22:51,112 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-22 01:22:51,113 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:22:51,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:51,113 INFO L82 PathProgramCache]: Analyzing trace with hash -321881980, now seen corresponding path program 1 times [2020-10-22 01:22:51,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:51,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086650282] [2020-10-22 01:22:51,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:51,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:22:51,198 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 01:22:51,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086650282] [2020-10-22 01:22:51,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:22:51,199 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:22:51,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [456079878] [2020-10-22 01:22:51,200 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:22:51,203 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:22:51,203 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 01:22:51,204 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:22:51,204 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:22:51,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 01:22:51,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:22:51,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 01:22:51,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:22:51,206 INFO L87 Difference]: Start difference. First operand 1711 states and 6280 transitions. Second operand 4 states. [2020-10-22 01:22:51,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:22:51,354 INFO L93 Difference]: Finished difference Result 2263 states and 8335 transitions. [2020-10-22 01:22:51,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 01:22:51,355 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 01:22:51,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:22:51,375 INFO L225 Difference]: With dead ends: 2263 [2020-10-22 01:22:51,375 INFO L226 Difference]: Without dead ends: 2263 [2020-10-22 01:22:51,376 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:22:51,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2263 states. [2020-10-22 01:22:51,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2263 to 1905. [2020-10-22 01:22:51,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1905 states. [2020-10-22 01:22:51,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1905 states to 1905 states and 7030 transitions. [2020-10-22 01:22:51,466 INFO L78 Accepts]: Start accepts. Automaton has 1905 states and 7030 transitions. Word has length 9 [2020-10-22 01:22:51,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:22:51,467 INFO L481 AbstractCegarLoop]: Abstraction has 1905 states and 7030 transitions. [2020-10-22 01:22:51,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 01:22:51,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1905 states and 7030 transitions. [2020-10-22 01:22:51,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 01:22:51,472 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:51,472 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:22:51,473 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-22 01:22:51,473 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:22:51,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:51,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1513337170, now seen corresponding path program 1 times [2020-10-22 01:22:51,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:51,479 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024728934] [2020-10-22 01:22:51,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:51,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:22:51,559 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 01:22:51,560 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024728934] [2020-10-22 01:22:51,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:22:51,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:22:51,561 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [313362923] [2020-10-22 01:22:51,561 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:22:51,562 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:22:51,563 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 01:22:51,563 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:22:51,563 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:22:51,564 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 01:22:51,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:22:51,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 01:22:51,564 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:22:51,565 INFO L87 Difference]: Start difference. First operand 1905 states and 7030 transitions. Second operand 5 states. [2020-10-22 01:22:51,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:22:51,668 INFO L93 Difference]: Finished difference Result 2445 states and 8985 transitions. [2020-10-22 01:22:51,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 01:22:51,668 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-22 01:22:51,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:22:51,731 INFO L225 Difference]: With dead ends: 2445 [2020-10-22 01:22:51,731 INFO L226 Difference]: Without dead ends: 2445 [2020-10-22 01:22:51,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:22:51,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2445 states. [2020-10-22 01:22:51,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2445 to 2068. [2020-10-22 01:22:51,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2068 states. [2020-10-22 01:22:51,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 7614 transitions. [2020-10-22 01:22:51,807 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 7614 transitions. Word has length 10 [2020-10-22 01:22:51,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:22:51,808 INFO L481 AbstractCegarLoop]: Abstraction has 2068 states and 7614 transitions. [2020-10-22 01:22:51,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 01:22:51,809 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 7614 transitions. [2020-10-22 01:22:51,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 01:22:51,810 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:51,810 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-10-22 01:22:51,810 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-22 01:22:51,810 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:22:51,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:51,811 INFO L82 PathProgramCache]: Analyzing trace with hash 2062019041, now seen corresponding path program 1 times [2020-10-22 01:22:51,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:51,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072814804] [2020-10-22 01:22:51,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:51,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:22:51,822 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:22:51,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:22:51,829 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:22:51,835 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:22:51,835 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:22:51,835 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-22 01:22:51,836 WARN L371 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:22:51,836 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-10-22 01:22:51,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,845 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,845 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,846 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,846 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,847 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,847 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,848 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,848 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,849 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,849 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,849 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,849 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,849 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,849 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,850 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,850 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,851 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,851 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,851 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,851 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,851 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,852 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,852 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,853 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,853 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,854 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,854 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,854 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,854 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,855 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,855 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,855 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,855 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,856 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,856 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,856 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,856 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,856 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,856 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,857 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,857 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,857 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,858 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,858 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,858 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,858 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,859 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:22:51,867 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:22:51,867 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-22 01:22:51,867 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:22:51,867 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:22:51,867 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:22:51,868 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:22:51,868 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:22:51,868 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:22:51,868 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:22:51,868 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:22:51,870 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:22:51,870 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 94 places, 98 transitions, 228 flow [2020-10-22 01:22:51,870 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 94 places, 98 transitions, 228 flow [2020-10-22 01:22:51,870 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 94 places, 98 transitions, 228 flow [2020-10-22 01:22:51,890 INFO L129 PetriNetUnfolder]: 17/133 cut-off events. [2020-10-22 01:22:51,890 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-10-22 01:22:51,892 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 133 events. 17/133 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 384 event pairs, 0 based on Foata normal form. 0/107 useless extension candidates. Maximal degree in co-relation 113. Up to 10 conditions per place. [2020-10-22 01:22:51,899 INFO L116 LiptonReduction]: Number of co-enabled transitions 5544 [2020-10-22 01:22:53,011 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-22 01:22:53,086 INFO L131 LiptonReduction]: Checked pairs total: 11909 [2020-10-22 01:22:53,086 INFO L133 LiptonReduction]: Total number of compositions: 87 [2020-10-22 01:22:53,086 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 41 places, 41 transitions, 114 flow [2020-10-22 01:22:53,949 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 11694 states. [2020-10-22 01:22:53,950 INFO L276 IsEmpty]: Start isEmpty. Operand 11694 states. [2020-10-22 01:22:53,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 01:22:53,950 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:53,950 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:22:53,950 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 01:22:53,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:53,951 INFO L82 PathProgramCache]: Analyzing trace with hash 2026674637, now seen corresponding path program 1 times [2020-10-22 01:22:53,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:53,953 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297472853] [2020-10-22 01:22:53,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:53,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:22:54,002 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 01:22:54,003 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297472853] [2020-10-22 01:22:54,003 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:22:54,003 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:22:54,003 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1144379352] [2020-10-22 01:22:54,003 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:22:54,004 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:22:54,005 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-22 01:22:54,005 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:22:54,005 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:22:54,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 01:22:54,005 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:22:54,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 01:22:54,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:22:54,006 INFO L87 Difference]: Start difference. First operand 11694 states. Second operand 5 states. [2020-10-22 01:22:54,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:22:54,301 INFO L93 Difference]: Finished difference Result 12698 states and 58889 transitions. [2020-10-22 01:22:54,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 01:22:54,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-22 01:22:54,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:22:54,398 INFO L225 Difference]: With dead ends: 12698 [2020-10-22 01:22:54,398 INFO L226 Difference]: Without dead ends: 12698 [2020-10-22 01:22:54,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:22:55,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12698 states. [2020-10-22 01:22:55,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12698 to 10267. [2020-10-22 01:22:55,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10267 states. [2020-10-22 01:22:55,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10267 states to 10267 states and 47780 transitions. [2020-10-22 01:22:55,494 INFO L78 Accepts]: Start accepts. Automaton has 10267 states and 47780 transitions. Word has length 7 [2020-10-22 01:22:55,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:22:55,494 INFO L481 AbstractCegarLoop]: Abstraction has 10267 states and 47780 transitions. [2020-10-22 01:22:55,494 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 01:22:55,494 INFO L276 IsEmpty]: Start isEmpty. Operand 10267 states and 47780 transitions. [2020-10-22 01:22:55,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 01:22:55,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:55,494 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:22:55,495 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-22 01:22:55,495 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 01:22:55,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:55,495 INFO L82 PathProgramCache]: Analyzing trace with hash 2014106405, now seen corresponding path program 1 times [2020-10-22 01:22:55,496 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:55,496 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151721683] [2020-10-22 01:22:55,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:22:55,597 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 01:22:55,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151721683] [2020-10-22 01:22:55,598 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:22:55,598 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:22:55,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1765918855] [2020-10-22 01:22:55,599 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:22:55,599 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:22:55,600 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 01:22:55,600 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:22:55,600 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:22:55,601 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 01:22:55,601 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:22:55,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 01:22:55,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:22:55,602 INFO L87 Difference]: Start difference. First operand 10267 states and 47780 transitions. Second operand 4 states. [2020-10-22 01:22:55,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:22:55,925 INFO L93 Difference]: Finished difference Result 13510 states and 62987 transitions. [2020-10-22 01:22:55,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 01:22:55,926 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 01:22:55,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:22:56,006 INFO L225 Difference]: With dead ends: 13510 [2020-10-22 01:22:56,006 INFO L226 Difference]: Without dead ends: 13510 [2020-10-22 01:22:56,007 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:22:56,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13510 states. [2020-10-22 01:22:56,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13510 to 11693. [2020-10-22 01:22:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11693 states. [2020-10-22 01:22:56,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11693 states to 11693 states and 54582 transitions. [2020-10-22 01:22:56,741 INFO L78 Accepts]: Start accepts. Automaton has 11693 states and 54582 transitions. Word has length 9 [2020-10-22 01:22:56,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:22:56,741 INFO L481 AbstractCegarLoop]: Abstraction has 11693 states and 54582 transitions. [2020-10-22 01:22:56,741 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 01:22:56,741 INFO L276 IsEmpty]: Start isEmpty. Operand 11693 states and 54582 transitions. [2020-10-22 01:22:56,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 01:22:56,742 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:56,742 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:22:56,742 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-22 01:22:56,742 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 01:22:56,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:56,743 INFO L82 PathProgramCache]: Analyzing trace with hash -1134825399, now seen corresponding path program 1 times [2020-10-22 01:22:56,745 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:56,745 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486280721] [2020-10-22 01:22:56,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:22:56,792 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 01:22:56,792 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486280721] [2020-10-22 01:22:56,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:22:56,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:22:56,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1180132113] [2020-10-22 01:22:56,793 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:22:56,794 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:22:56,794 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 01:22:56,795 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:22:56,795 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:22:56,795 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 01:22:56,795 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:22:56,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 01:22:56,796 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:22:56,796 INFO L87 Difference]: Start difference. First operand 11693 states and 54582 transitions. Second operand 5 states. [2020-10-22 01:22:57,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:22:57,003 INFO L93 Difference]: Finished difference Result 14378 states and 66854 transitions. [2020-10-22 01:22:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 01:22:57,003 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-22 01:22:57,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:22:57,065 INFO L225 Difference]: With dead ends: 14378 [2020-10-22 01:22:57,065 INFO L226 Difference]: Without dead ends: 14378 [2020-10-22 01:22:57,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:22:57,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14378 states. [2020-10-22 01:22:58,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14378 to 12390. [2020-10-22 01:22:58,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12390 states. [2020-10-22 01:22:58,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12390 states to 12390 states and 57735 transitions. [2020-10-22 01:22:58,330 INFO L78 Accepts]: Start accepts. Automaton has 12390 states and 57735 transitions. Word has length 10 [2020-10-22 01:22:58,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:22:58,331 INFO L481 AbstractCegarLoop]: Abstraction has 12390 states and 57735 transitions. [2020-10-22 01:22:58,331 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 01:22:58,331 INFO L276 IsEmpty]: Start isEmpty. Operand 12390 states and 57735 transitions. [2020-10-22 01:22:58,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 01:22:58,332 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:22:58,332 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:22:58,332 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-22 01:22:58,332 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 01:22:58,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:22:58,333 INFO L82 PathProgramCache]: Analyzing trace with hash 354508301, now seen corresponding path program 1 times [2020-10-22 01:22:58,334 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:22:58,334 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200092083] [2020-10-22 01:22:58,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:22:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:22:58,408 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-22 01:22:58,408 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200092083] [2020-10-22 01:22:58,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:22:58,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:22:58,411 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1755963810] [2020-10-22 01:22:58,411 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:22:58,413 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:22:58,414 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-10-22 01:22:58,415 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:22:58,416 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:22:58,416 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 01:22:58,416 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:22:58,417 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 01:22:58,417 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:22:58,417 INFO L87 Difference]: Start difference. First operand 12390 states and 57735 transitions. Second operand 4 states. [2020-10-22 01:23:00,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:00,753 INFO L93 Difference]: Finished difference Result 16488 states and 78285 transitions. [2020-10-22 01:23:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 01:23:00,754 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-22 01:23:00,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:00,819 INFO L225 Difference]: With dead ends: 16488 [2020-10-22 01:23:00,820 INFO L226 Difference]: Without dead ends: 16488 [2020-10-22 01:23:00,820 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:23:01,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16488 states. [2020-10-22 01:23:01,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16488 to 15123. [2020-10-22 01:23:01,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15123 states. [2020-10-22 01:23:01,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15123 states to 15123 states and 71886 transitions. [2020-10-22 01:23:01,644 INFO L78 Accepts]: Start accepts. Automaton has 15123 states and 71886 transitions. Word has length 12 [2020-10-22 01:23:01,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:01,645 INFO L481 AbstractCegarLoop]: Abstraction has 15123 states and 71886 transitions. [2020-10-22 01:23:01,645 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 01:23:01,645 INFO L276 IsEmpty]: Start isEmpty. Operand 15123 states and 71886 transitions. [2020-10-22 01:23:01,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 01:23:01,646 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:01,646 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:01,646 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-22 01:23:01,647 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 01:23:01,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:01,647 INFO L82 PathProgramCache]: Analyzing trace with hash 479161695, now seen corresponding path program 1 times [2020-10-22 01:23:01,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:01,651 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [600825747] [2020-10-22 01:23:01,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:01,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:01,732 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:23:01,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [600825747] [2020-10-22 01:23:01,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1656648086] [2020-10-22 01:23:01,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-22 01:23:01,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:01,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-22 01:23:01,791 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-22 01:23:01,825 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:23:01,826 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-22 01:23:01,826 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-10-22 01:23:01,826 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1400137441] [2020-10-22 01:23:01,826 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:01,827 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:01,829 INFO L252 McrAutomatonBuilder]: Finished intersection with 25 states and 35 transitions. [2020-10-22 01:23:01,830 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:02,057 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [179566#(or (and (<= (* 4294967296 (div ~r~0 4294967296)) 0) (<= 0 (* 4294967296 (div ~r~0 4294967296)))) (not (= (mod ~r~0 4294967296) 0))), 179565#(or (and (<= 1 ~r~0) (<= ~r~0 1)) (not (= (mod ~r~0 4294967296) 1)))] [2020-10-22 01:23:02,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 01:23:02,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:02,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 01:23:02,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 01:23:02,059 INFO L87 Difference]: Start difference. First operand 15123 states and 71886 transitions. Second operand 7 states. [2020-10-22 01:23:02,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:02,182 INFO L93 Difference]: Finished difference Result 2576 states and 9299 transitions. [2020-10-22 01:23:02,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 01:23:02,183 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-22 01:23:02,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:02,189 INFO L225 Difference]: With dead ends: 2576 [2020-10-22 01:23:02,189 INFO L226 Difference]: Without dead ends: 2576 [2020-10-22 01:23:02,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-10-22 01:23:02,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2576 states. [2020-10-22 01:23:02,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2576 to 2261. [2020-10-22 01:23:02,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2261 states. [2020-10-22 01:23:02,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2261 states to 2261 states and 8079 transitions. [2020-10-22 01:23:02,249 INFO L78 Accepts]: Start accepts. Automaton has 2261 states and 8079 transitions. Word has length 13 [2020-10-22 01:23:02,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:02,250 INFO L481 AbstractCegarLoop]: Abstraction has 2261 states and 8079 transitions. [2020-10-22 01:23:02,250 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 01:23:02,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2261 states and 8079 transitions. [2020-10-22 01:23:02,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 01:23:02,251 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:02,251 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:02,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-10-22 01:23:02,466 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 01:23:02,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:02,466 INFO L82 PathProgramCache]: Analyzing trace with hash -1258372578, now seen corresponding path program 1 times [2020-10-22 01:23:02,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:02,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55562782] [2020-10-22 01:23:02,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:02,509 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-22 01:23:02,509 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55562782] [2020-10-22 01:23:02,509 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:02,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:02,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1332162715] [2020-10-22 01:23:02,510 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:02,511 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:02,513 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-10-22 01:23:02,513 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:02,513 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:02,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 01:23:02,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:02,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 01:23:02,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:23:02,514 INFO L87 Difference]: Start difference. First operand 2261 states and 8079 transitions. Second operand 5 states. [2020-10-22 01:23:02,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:02,731 INFO L93 Difference]: Finished difference Result 3434 states and 12291 transitions. [2020-10-22 01:23:02,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 01:23:02,732 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-22 01:23:02,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:02,742 INFO L225 Difference]: With dead ends: 3434 [2020-10-22 01:23:02,742 INFO L226 Difference]: Without dead ends: 3434 [2020-10-22 01:23:02,743 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:23:02,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2020-10-22 01:23:02,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 2531. [2020-10-22 01:23:02,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2531 states. [2020-10-22 01:23:02,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2531 states to 2531 states and 9069 transitions. [2020-10-22 01:23:02,820 INFO L78 Accepts]: Start accepts. Automaton has 2531 states and 9069 transitions. Word has length 13 [2020-10-22 01:23:02,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:02,820 INFO L481 AbstractCegarLoop]: Abstraction has 2531 states and 9069 transitions. [2020-10-22 01:23:02,820 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 01:23:02,820 INFO L276 IsEmpty]: Start isEmpty. Operand 2531 states and 9069 transitions. [2020-10-22 01:23:02,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 01:23:02,822 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:02,822 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:02,822 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-22 01:23:02,822 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-10-22 01:23:02,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:02,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1235269516, now seen corresponding path program 1 times [2020-10-22 01:23:02,827 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:02,827 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408940345] [2020-10-22 01:23:02,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:02,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:23:02,836 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:23:02,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:23:02,843 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:23:02,849 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:23:02,849 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:23:02,849 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-22 01:23:02,850 WARN L371 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:23:02,850 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2020-10-22 01:23:02,859 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,860 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,860 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,861 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,861 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,862 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,862 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,863 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,863 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,864 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,864 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,865 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,865 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,866 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,866 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,867 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,868 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,868 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,868 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,868 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,868 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,868 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,869 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,869 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,870 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,870 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,870 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,870 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,870 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,870 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,870 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,871 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,871 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,871 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,871 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,871 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,872 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,872 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,873 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,873 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,873 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,873 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,873 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,873 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,873 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,876 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,876 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,876 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,876 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,877 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,877 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,878 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,878 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,879 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,879 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,879 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,880 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,880 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,880 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,880 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,880 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,880 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,881 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,881 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,881 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,881 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,881 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,881 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,881 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of5ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,882 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,882 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of5ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:02,882 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:23:02,883 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-10-22 01:23:02,883 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:23:02,883 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:23:02,883 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:23:02,883 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:23:02,883 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:23:02,883 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:23:02,884 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:23:02,884 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:23:02,885 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:23:02,885 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 117 transitions, 279 flow [2020-10-22 01:23:02,885 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 117 transitions, 279 flow [2020-10-22 01:23:02,885 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 112 places, 117 transitions, 279 flow [2020-10-22 01:23:02,914 INFO L129 PetriNetUnfolder]: 21/161 cut-off events. [2020-10-22 01:23:02,914 INFO L130 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2020-10-22 01:23:02,917 INFO L80 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 161 events. 21/161 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 489 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 146. Up to 12 conditions per place. [2020-10-22 01:23:02,926 INFO L116 LiptonReduction]: Number of co-enabled transitions 8640 [2020-10-22 01:23:04,235 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-22 01:23:04,313 INFO L131 LiptonReduction]: Checked pairs total: 22651 [2020-10-22 01:23:04,313 INFO L133 LiptonReduction]: Total number of compositions: 101 [2020-10-22 01:23:04,314 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 50 places, 52 transitions, 149 flow [2020-10-22 01:23:24,633 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 79020 states. [2020-10-22 01:23:24,634 INFO L276 IsEmpty]: Start isEmpty. Operand 79020 states. [2020-10-22 01:23:24,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-22 01:23:24,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:24,634 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:24,634 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:24,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:24,635 INFO L82 PathProgramCache]: Analyzing trace with hash -138648108, now seen corresponding path program 1 times [2020-10-22 01:23:24,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:24,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851832358] [2020-10-22 01:23:24,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:24,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:24,684 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 01:23:24,685 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851832358] [2020-10-22 01:23:24,685 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:24,685 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:24,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2070196394] [2020-10-22 01:23:24,686 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:24,686 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:24,687 INFO L252 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-10-22 01:23:24,687 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:24,687 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:24,687 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 01:23:24,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:24,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 01:23:24,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:23:24,688 INFO L87 Difference]: Start difference. First operand 79020 states. Second operand 5 states. [2020-10-22 01:23:27,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:27,624 INFO L93 Difference]: Finished difference Result 80024 states and 451669 transitions. [2020-10-22 01:23:27,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 01:23:27,625 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-10-22 01:23:27,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:27,928 INFO L225 Difference]: With dead ends: 80024 [2020-10-22 01:23:27,928 INFO L226 Difference]: Without dead ends: 80024 [2020-10-22 01:23:27,929 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:23:29,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80024 states. [2020-10-22 01:23:32,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80024 to 67021. [2020-10-22 01:23:32,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67021 states. [2020-10-22 01:23:33,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67021 states to 67021 states and 379395 transitions. [2020-10-22 01:23:33,146 INFO L78 Accepts]: Start accepts. Automaton has 67021 states and 379395 transitions. Word has length 7 [2020-10-22 01:23:33,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:33,146 INFO L481 AbstractCegarLoop]: Abstraction has 67021 states and 379395 transitions. [2020-10-22 01:23:33,146 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 01:23:33,146 INFO L276 IsEmpty]: Start isEmpty. Operand 67021 states and 379395 transitions. [2020-10-22 01:23:33,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 01:23:33,147 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:33,147 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:33,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-22 01:23:33,147 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:33,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:33,148 INFO L82 PathProgramCache]: Analyzing trace with hash -96873308, now seen corresponding path program 1 times [2020-10-22 01:23:33,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:33,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003434668] [2020-10-22 01:23:33,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:33,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:33,209 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 01:23:33,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003434668] [2020-10-22 01:23:33,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:33,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:33,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [832158720] [2020-10-22 01:23:33,210 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:33,211 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:33,211 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 01:23:33,212 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:33,212 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:33,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 01:23:33,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:33,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 01:23:33,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:23:33,213 INFO L87 Difference]: Start difference. First operand 67021 states and 379395 transitions. Second operand 4 states. [2020-10-22 01:23:36,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:36,723 INFO L93 Difference]: Finished difference Result 91711 states and 519513 transitions. [2020-10-22 01:23:36,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 01:23:36,724 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-10-22 01:23:36,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:37,070 INFO L225 Difference]: With dead ends: 91711 [2020-10-22 01:23:37,071 INFO L226 Difference]: Without dead ends: 91711 [2020-10-22 01:23:37,071 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:23:39,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91711 states. [2020-10-22 01:23:40,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91711 to 80627. [2020-10-22 01:23:40,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80627 states. [2020-10-22 01:23:46,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80627 states to 80627 states and 457037 transitions. [2020-10-22 01:23:46,228 INFO L78 Accepts]: Start accepts. Automaton has 80627 states and 457037 transitions. Word has length 9 [2020-10-22 01:23:46,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:46,228 INFO L481 AbstractCegarLoop]: Abstraction has 80627 states and 457037 transitions. [2020-10-22 01:23:46,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 01:23:46,229 INFO L276 IsEmpty]: Start isEmpty. Operand 80627 states and 457037 transitions. [2020-10-22 01:23:46,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-22 01:23:46,229 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:46,229 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:46,229 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-22 01:23:46,230 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:46,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:46,230 INFO L82 PathProgramCache]: Analyzing trace with hash -1511628494, now seen corresponding path program 1 times [2020-10-22 01:23:46,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:46,231 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784036047] [2020-10-22 01:23:46,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:46,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:46,290 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 01:23:46,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784036047] [2020-10-22 01:23:46,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:46,290 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:46,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2059912549] [2020-10-22 01:23:46,291 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:46,292 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:46,292 INFO L252 McrAutomatonBuilder]: Finished intersection with 11 states and 10 transitions. [2020-10-22 01:23:46,292 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:46,293 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:46,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 01:23:46,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:46,293 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 01:23:46,293 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:23:46,294 INFO L87 Difference]: Start difference. First operand 80627 states and 457037 transitions. Second operand 5 states. [2020-10-22 01:23:47,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:47,070 INFO L93 Difference]: Finished difference Result 94787 states and 535759 transitions. [2020-10-22 01:23:47,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 01:23:47,071 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-10-22 01:23:47,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:47,431 INFO L225 Difference]: With dead ends: 94787 [2020-10-22 01:23:47,432 INFO L226 Difference]: Without dead ends: 94787 [2020-10-22 01:23:47,432 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:23:51,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94787 states. [2020-10-22 01:23:53,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94787 to 83526. [2020-10-22 01:23:53,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 83526 states. [2020-10-22 01:23:53,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83526 states to 83526 states and 472959 transitions. [2020-10-22 01:23:53,860 INFO L78 Accepts]: Start accepts. Automaton has 83526 states and 472959 transitions. Word has length 10 [2020-10-22 01:23:53,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:53,860 INFO L481 AbstractCegarLoop]: Abstraction has 83526 states and 472959 transitions. [2020-10-22 01:23:53,860 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 01:23:53,861 INFO L276 IsEmpty]: Start isEmpty. Operand 83526 states and 472959 transitions. [2020-10-22 01:23:53,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-22 01:23:53,861 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:53,861 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:53,862 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-22 01:23:53,862 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:53,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:53,862 INFO L82 PathProgramCache]: Analyzing trace with hash -976059185, now seen corresponding path program 1 times [2020-10-22 01:23:53,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:53,863 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81739013] [2020-10-22 01:23:53,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:53,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:53,910 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-22 01:23:53,911 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81739013] [2020-10-22 01:23:53,911 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:53,911 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:53,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [435257902] [2020-10-22 01:23:53,912 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:53,912 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:53,913 INFO L252 McrAutomatonBuilder]: Finished intersection with 13 states and 12 transitions. [2020-10-22 01:23:53,913 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:53,914 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:53,914 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 01:23:53,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:53,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 01:23:53,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:23:53,915 INFO L87 Difference]: Start difference. First operand 83526 states and 472959 transitions. Second operand 4 states. [2020-10-22 01:24:01,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:24:01,171 INFO L93 Difference]: Finished difference Result 113892 states and 645309 transitions. [2020-10-22 01:24:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 01:24:01,172 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-10-22 01:24:01,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:24:01,605 INFO L225 Difference]: With dead ends: 113892 [2020-10-22 01:24:01,605 INFO L226 Difference]: Without dead ends: 113892 [2020-10-22 01:24:01,606 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:24:03,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113892 states. [2020-10-22 01:24:06,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113892 to 101478. [2020-10-22 01:24:06,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101478 states. [2020-10-22 01:24:06,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101478 states to 101478 states and 575416 transitions. [2020-10-22 01:24:06,630 INFO L78 Accepts]: Start accepts. Automaton has 101478 states and 575416 transitions. Word has length 12 [2020-10-22 01:24:06,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:24:06,630 INFO L481 AbstractCegarLoop]: Abstraction has 101478 states and 575416 transitions. [2020-10-22 01:24:06,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 01:24:06,630 INFO L276 IsEmpty]: Start isEmpty. Operand 101478 states and 575416 transitions. [2020-10-22 01:24:06,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 01:24:06,631 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:24:06,631 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:24:06,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-22 01:24:06,631 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:24:06,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:24:06,632 INFO L82 PathProgramCache]: Analyzing trace with hash -49474931, now seen corresponding path program 1 times [2020-10-22 01:24:06,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:24:06,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087241235] [2020-10-22 01:24:06,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:24:06,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:24:06,685 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 01:24:06,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087241235] [2020-10-22 01:24:06,686 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:24:06,686 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-22 01:24:06,686 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1475084028] [2020-10-22 01:24:06,686 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:24:06,687 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:24:06,688 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 17 transitions. [2020-10-22 01:24:06,688 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:24:06,733 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 2 new interpolants: [1203896#(not (= (mod ~r~0 4294967296) 1)), 1203897#(not (= (mod (* ~r~0 4294967295) (- 4294967296)) 0))] [2020-10-22 01:24:06,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-22 01:24:06,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:24:06,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-22 01:24:06,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 01:24:06,735 INFO L87 Difference]: Start difference. First operand 101478 states and 575416 transitions. Second operand 7 states. [2020-10-22 01:24:06,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:24:06,907 INFO L93 Difference]: Finished difference Result 8809 states and 37780 transitions. [2020-10-22 01:24:06,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 01:24:06,907 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-10-22 01:24:06,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:24:06,927 INFO L225 Difference]: With dead ends: 8809 [2020-10-22 01:24:06,928 INFO L226 Difference]: Without dead ends: 8809 [2020-10-22 01:24:06,928 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-22 01:24:07,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8809 states. [2020-10-22 01:24:07,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8809 to 7186. [2020-10-22 01:24:07,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7186 states. [2020-10-22 01:24:07,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7186 states to 7186 states and 30442 transitions. [2020-10-22 01:24:07,135 INFO L78 Accepts]: Start accepts. Automaton has 7186 states and 30442 transitions. Word has length 13 [2020-10-22 01:24:07,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:24:07,135 INFO L481 AbstractCegarLoop]: Abstraction has 7186 states and 30442 transitions. [2020-10-22 01:24:07,135 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-22 01:24:07,135 INFO L276 IsEmpty]: Start isEmpty. Operand 7186 states and 30442 transitions. [2020-10-22 01:24:07,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-10-22 01:24:07,136 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:24:07,136 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:24:07,136 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-22 01:24:07,136 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:24:07,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:24:07,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1290817705, now seen corresponding path program 1 times [2020-10-22 01:24:07,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:24:07,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335408144] [2020-10-22 01:24:07,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:24:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:24:07,186 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-22 01:24:07,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335408144] [2020-10-22 01:24:07,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:24:07,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:24:07,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2063244449] [2020-10-22 01:24:07,187 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:24:07,188 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:24:07,189 INFO L252 McrAutomatonBuilder]: Finished intersection with 14 states and 13 transitions. [2020-10-22 01:24:07,189 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:24:07,190 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:24:07,190 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 01:24:07,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:24:07,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 01:24:07,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:24:07,191 INFO L87 Difference]: Start difference. First operand 7186 states and 30442 transitions. Second operand 5 states. [2020-10-22 01:24:07,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:24:07,414 INFO L93 Difference]: Finished difference Result 12706 states and 53755 transitions. [2020-10-22 01:24:07,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 01:24:07,414 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-10-22 01:24:07,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:24:07,466 INFO L225 Difference]: With dead ends: 12706 [2020-10-22 01:24:07,466 INFO L226 Difference]: Without dead ends: 12706 [2020-10-22 01:24:07,467 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:24:07,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12706 states. [2020-10-22 01:24:09,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12706 to 8050. [2020-10-22 01:24:09,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8050 states. [2020-10-22 01:24:09,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8050 states to 8050 states and 34132 transitions. [2020-10-22 01:24:09,597 INFO L78 Accepts]: Start accepts. Automaton has 8050 states and 34132 transitions. Word has length 13 [2020-10-22 01:24:09,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:24:09,597 INFO L481 AbstractCegarLoop]: Abstraction has 8050 states and 34132 transitions. [2020-10-22 01:24:09,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 01:24:09,597 INFO L276 IsEmpty]: Start isEmpty. Operand 8050 states and 34132 transitions. [2020-10-22 01:24:09,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-22 01:24:09,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:24:09,599 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:24:09,599 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-22 01:24:09,599 INFO L429 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:24:09,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:24:09,600 INFO L82 PathProgramCache]: Analyzing trace with hash 769766477, now seen corresponding path program 1 times [2020-10-22 01:24:09,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:24:09,603 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827317019] [2020-10-22 01:24:09,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:24:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:24:09,668 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-22 01:24:09,669 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827317019] [2020-10-22 01:24:09,669 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:24:09,669 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:24:09,669 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [313697599] [2020-10-22 01:24:09,670 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:24:09,671 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:24:09,672 INFO L252 McrAutomatonBuilder]: Finished intersection with 16 states and 15 transitions. [2020-10-22 01:24:09,672 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:24:09,672 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:24:09,673 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 01:24:09,673 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:24:09,673 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 01:24:09,673 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:24:09,673 INFO L87 Difference]: Start difference. First operand 8050 states and 34132 transitions. Second operand 4 states. [2020-10-22 01:24:09,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:24:09,770 INFO L93 Difference]: Finished difference Result 7618 states and 32287 transitions. [2020-10-22 01:24:09,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 01:24:09,771 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 15 [2020-10-22 01:24:09,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:24:09,790 INFO L225 Difference]: With dead ends: 7618 [2020-10-22 01:24:09,790 INFO L226 Difference]: Without dead ends: 7618 [2020-10-22 01:24:09,790 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:24:09,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7618 states. [2020-10-22 01:24:09,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7618 to 6754. [2020-10-22 01:24:09,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6754 states. [2020-10-22 01:24:09,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6754 states to 6754 states and 28597 transitions. [2020-10-22 01:24:09,983 INFO L78 Accepts]: Start accepts. Automaton has 6754 states and 28597 transitions. Word has length 15 [2020-10-22 01:24:09,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:24:09,984 INFO L481 AbstractCegarLoop]: Abstraction has 6754 states and 28597 transitions. [2020-10-22 01:24:09,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 01:24:09,984 INFO L276 IsEmpty]: Start isEmpty. Operand 6754 states and 28597 transitions. [2020-10-22 01:24:09,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-22 01:24:09,986 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:24:09,986 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:24:09,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-22 01:24:09,986 INFO L429 AbstractCegarLoop]: === Iteration 8 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:24:09,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:24:09,987 INFO L82 PathProgramCache]: Analyzing trace with hash 1857521794, now seen corresponding path program 1 times [2020-10-22 01:24:09,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:24:09,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597293286] [2020-10-22 01:24:09,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:24:09,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:24:10,051 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-10-22 01:24:10,052 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597293286] [2020-10-22 01:24:10,052 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:24:10,052 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:24:10,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1379246445] [2020-10-22 01:24:10,053 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:24:10,054 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:24:10,055 INFO L252 McrAutomatonBuilder]: Finished intersection with 17 states and 16 transitions. [2020-10-22 01:24:10,055 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:24:10,055 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:24:10,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-22 01:24:10,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:24:10,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-22 01:24:10,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:24:10,056 INFO L87 Difference]: Start difference. First operand 6754 states and 28597 transitions. Second operand 5 states. [2020-10-22 01:24:10,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:24:10,213 INFO L93 Difference]: Finished difference Result 11905 states and 50467 transitions. [2020-10-22 01:24:10,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-22 01:24:10,214 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-10-22 01:24:10,214 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:24:10,240 INFO L225 Difference]: With dead ends: 11905 [2020-10-22 01:24:10,240 INFO L226 Difference]: Without dead ends: 11905 [2020-10-22 01:24:10,240 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-22 01:24:10,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11905 states. [2020-10-22 01:24:10,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11905 to 7564. [2020-10-22 01:24:10,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7564 states. [2020-10-22 01:24:10,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7564 states to 7564 states and 32107 transitions. [2020-10-22 01:24:10,470 INFO L78 Accepts]: Start accepts. Automaton has 7564 states and 32107 transitions. Word has length 16 [2020-10-22 01:24:10,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:24:10,470 INFO L481 AbstractCegarLoop]: Abstraction has 7564 states and 32107 transitions. [2020-10-22 01:24:10,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-22 01:24:10,470 INFO L276 IsEmpty]: Start isEmpty. Operand 7564 states and 32107 transitions. [2020-10-22 01:24:10,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-10-22 01:24:10,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:24:10,474 INFO L422 BasicCegarLoop]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:24:10,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-22 01:24:10,474 INFO L429 AbstractCegarLoop]: === Iteration 9 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:24:10,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:24:10,475 INFO L82 PathProgramCache]: Analyzing trace with hash 1810546071, now seen corresponding path program 1 times [2020-10-22 01:24:10,476 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:24:10,476 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646316953] [2020-10-22 01:24:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:24:10,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:24:10,484 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:24:10,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-22 01:24:10,491 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-22 01:24:10,502 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-22 01:24:10,502 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-22 01:24:10,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-22 01:24:10,503 WARN L371 ceAbstractionStarter]: 5 thread instances were not sufficient, I will increase this number and restart the analysis [2020-10-22 01:24:10,503 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 6 thread instances. [2020-10-22 01:24:10,520 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,520 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,521 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,521 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,521 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,521 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,521 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,522 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,522 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,522 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,522 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,523 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,523 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,523 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,523 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,523 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,523 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,523 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,523 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,524 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,524 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,524 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,524 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,524 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,524 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,524 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,524 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,525 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,525 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,525 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,525 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,525 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,525 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,525 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,526 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,526 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,526 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,526 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,526 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,526 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,526 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,526 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,527 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,527 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,527 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,527 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,527 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,527 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,527 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,527 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,528 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,528 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,528 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,528 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,528 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,528 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,528 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,528 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,529 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,529 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,530 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,530 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,530 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,530 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,530 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,530 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,530 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,530 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,531 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,531 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,531 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,531 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,531 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,532 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,532 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,532 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,532 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,532 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,532 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,532 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,532 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,533 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,533 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,533 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,533 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,533 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,534 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,534 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,534 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,534 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,534 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,534 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,535 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,535 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,535 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,535 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,535 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,536 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,537 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,537 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,538 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,540 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,540 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,541 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,541 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,542 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,542 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,542 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,542 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,543 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,543 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,544 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,544 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,545 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread5of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,545 WARN L313 ript$VariableManager]: TermVariabe thr1Thread5of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,546 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,546 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,547 WARN L313 ript$VariableManager]: TermVariabe thr1Thread6of6ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,547 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread6of6ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:24:10,548 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:24:10,548 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-10-22 01:24:10,548 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:24:10,548 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:24:10,548 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:24:10,549 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:24:10,549 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:24:10,549 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:24:10,549 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:24:10,549 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:24:10,551 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:24:10,551 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 136 transitions, 332 flow [2020-10-22 01:24:10,551 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 136 transitions, 332 flow [2020-10-22 01:24:10,551 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 130 places, 136 transitions, 332 flow [2020-10-22 01:24:10,574 INFO L129 PetriNetUnfolder]: 25/189 cut-off events. [2020-10-22 01:24:10,574 INFO L130 PetriNetUnfolder]: For 50/50 co-relation queries the response was YES. [2020-10-22 01:24:10,577 INFO L80 FinitePrefix]: Finished finitePrefix Result has 229 conditions, 189 events. 25/189 cut-off events. For 50/50 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 610 event pairs, 0 based on Foata normal form. 0/151 useless extension candidates. Maximal degree in co-relation 181. Up to 14 conditions per place. [2020-10-22 01:24:10,590 INFO L116 LiptonReduction]: Number of co-enabled transitions 12420 [2020-10-22 01:24:12,097 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-10-22 01:24:12,167 INFO L131 LiptonReduction]: Checked pairs total: 29681 [2020-10-22 01:24:12,167 INFO L133 LiptonReduction]: Total number of compositions: 117 [2020-10-22 01:24:12,167 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 66 transitions, 192 flow Received shutdown request... [2020-10-22 01:26:46,901 WARN L546 AbstractCegarLoop]: Verification canceled [2020-10-22 01:26:46,905 WARN L235 ceAbstractionStarter]: Timeout [2020-10-22 01:26:46,905 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 01:26:46 BasicIcfg [2020-10-22 01:26:46,905 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 01:26:46,906 INFO L168 Benchmark]: Toolchain (without parser) took 242500.24 ms. Allocated memory was 140.5 MB in the beginning and 2.5 GB in the end (delta: 2.4 GB). Free memory was 101.9 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2020-10-22 01:26:46,907 INFO L168 Benchmark]: CDTParser took 3.07 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 01:26:46,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.74 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.0 MB in the beginning and 159.4 MB in the end (delta: -58.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-10-22 01:26:46,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.92 ms. Allocated memory is still 203.4 MB. Free memory was 159.4 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-22 01:26:46,908 INFO L168 Benchmark]: Boogie Preprocessor took 23.83 ms. Allocated memory is still 203.4 MB. Free memory was 157.5 MB in the beginning and 156.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-10-22 01:26:46,918 INFO L168 Benchmark]: RCFGBuilder took 462.52 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 134.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2020-10-22 01:26:46,918 INFO L168 Benchmark]: TraceAbstraction took 241323.32 ms. Allocated memory was 203.4 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 133.4 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. [2020-10-22 01:26:46,921 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 3.07 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 635.74 ms. Allocated memory was 140.5 MB in the beginning and 203.4 MB in the end (delta: 62.9 MB). Free memory was 101.0 MB in the beginning and 159.4 MB in the end (delta: -58.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.92 ms. Allocated memory is still 203.4 MB. Free memory was 159.4 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.83 ms. Allocated memory is still 203.4 MB. Free memory was 157.5 MB in the beginning and 156.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 462.52 ms. Allocated memory is still 203.4 MB. Free memory was 156.1 MB in the beginning and 134.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 241323.32 ms. Allocated memory was 203.4 MB in the beginning and 2.5 GB in the end (delta: 2.3 GB). Free memory was 133.4 MB in the beginning and 1.4 GB in the end (delta: -1.3 GB). Peak memory consumption was 2.5 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 200 VarBasedMoverChecksPositive, 0 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 4 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 40 PlacesBefore, 12 PlacesAfterwards, 41 TransitionsBefore, 10 TransitionsAfterwards, 360 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 3 ChoiceCompositions, 42 TotalNumberOfCompositions, 359 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 821 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 110 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 0.9s, 58 PlacesBefore, 24 PlacesAfterwards, 60 TransitionsBefore, 24 TransitionsAfterwards, 1404 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 51 TotalNumberOfCompositions, 3226 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1693 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 107 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.1s, 76 PlacesBefore, 33 PlacesAfterwards, 79 TransitionsBefore, 33 TransitionsAfterwards, 3132 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 65 TotalNumberOfCompositions, 6943 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 3020 VarBasedMoverChecksPositive, 62 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 201 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 94 PlacesBefore, 41 PlacesAfterwards, 98 TransitionsBefore, 41 TransitionsAfterwards, 5544 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 57 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 4 ChoiceCompositions, 87 TotalNumberOfCompositions, 11909 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 4590 VarBasedMoverChecksPositive, 57 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 279 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 112 PlacesBefore, 50 PlacesAfterwards, 117 TransitionsBefore, 52 TransitionsAfterwards, 8640 CoEnabledTransitionPairs, 5 FixpointIterations, 11 TrivialSequentialCompositions, 72 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 15 ConcurrentYvCompositions, 3 ChoiceCompositions, 101 TotalNumberOfCompositions, 22651 MoverChecksTotal - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 6795 VarBasedMoverChecksPositive, 85 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 516 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.6s, 130 PlacesBefore, 61 PlacesAfterwards, 136 TransitionsBefore, 66 TransitionsAfterwards, 12420 CoEnabledTransitionPairs, 4 FixpointIterations, 11 TrivialSequentialCompositions, 86 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 19 ConcurrentYvCompositions, 1 ChoiceCompositions, 117 TotalNumberOfCompositions, 29681 MoverChecksTotal - TimeoutResultAtElement [Line: 16]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 16). Cancelled while BasicCegarLoop was constructing initial abstraction,while PetriNet2FiniteAutomaton was constructing automaton for Petri net that has has 61 places, 66 transitions, 192 flow. Already constructed 251215 states. Currently 62121 states in worklist.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 37 locations, 1 error locations. Started 6 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 241.0s, OverallIterations: 26, TraceHistogramMax: 6, AutomataDifference: 21.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 183.6s, HoareTripleCheckerStatistics: 1118 SDtfs, 922 SDslu, 1451 SDs, 0 SdLazy, 1606 SolverSat, 107 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 95 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101478occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 33.0s AutomataMinimizationTime, 21 MinimizatonAttempts, 69397 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 291 NumberOfCodeBlocks, 291 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 208 ConstructedInterpolants, 0 QuantifiedInterpolants, 11103 SizeOfPredicates, 1 NumberOfNonLiveVariables, 150 ConjunctsInSsa, 19 ConjunctsInUnsatCore, 23 InterpolantComputations, 19 PerfectInterpolantSequences, 62/68 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