/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -i ../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-15 14:24:47,245 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-15 14:24:47,249 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-15 14:24:47,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-15 14:24:47,298 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-15 14:24:47,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-15 14:24:47,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-15 14:24:47,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-15 14:24:47,318 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-15 14:24:47,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-15 14:24:47,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-15 14:24:47,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-15 14:24:47,327 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-15 14:24:47,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-15 14:24:47,330 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-15 14:24:47,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-15 14:24:47,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-15 14:24:47,336 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-15 14:24:47,338 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-15 14:24:47,347 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-15 14:24:47,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-15 14:24:47,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-15 14:24:47,353 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-15 14:24:47,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-15 14:24:47,359 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-15 14:24:47,366 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-15 14:24:47,367 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-15 14:24:47,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-15 14:24:47,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-15 14:24:47,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-15 14:24:47,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-15 14:24:47,371 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-15 14:24:47,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-15 14:24:47,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-15 14:24:47,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-15 14:24:47,374 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-15 14:24:47,375 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2020-09-15 14:24:47,425 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-15 14:24:47,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-15 14:24:47,428 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-15 14:24:47,428 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-15 14:24:47,428 INFO L138 SettingsManager]: * Use SBE=true [2020-09-15 14:24:47,428 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-15 14:24:47,429 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-15 14:24:47,429 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-15 14:24:47,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-15 14:24:47,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-15 14:24:47,431 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-15 14:24:47,431 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-15 14:24:47,431 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-15 14:24:47,432 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-15 14:24:47,432 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-15 14:24:47,432 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-15 14:24:47,432 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-15 14:24:47,432 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-15 14:24:47,433 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-15 14:24:47,433 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-15 14:24:47,433 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-15 14:24:47,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 14:24:47,433 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-15 14:24:47,434 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-09-15 14:24:47,434 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-15 14:24:47,434 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-15 14:24:47,434 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-15 14:24:47,434 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-09-15 14:24:47,435 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-09-15 14:24:47,435 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-15 14:24:47,435 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-09-15 14:24:47,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-15 14:24:47,906 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-15 14:24:47,910 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-15 14:24:47,912 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-15 14:24:47,913 INFO L275 PluginConnector]: CDTParser initialized [2020-09-15 14:24:47,915 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2020-09-15 14:24:47,994 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac4fe7efb/a7b89827d4a0418e85aace2ce934cdc7/FLAGd78a1df98 [2020-09-15 14:24:48,641 INFO L306 CDTParser]: Found 1 translation units. [2020-09-15 14:24:48,642 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/48_ticket_lock_low_contention_vs.i [2020-09-15 14:24:48,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac4fe7efb/a7b89827d4a0418e85aace2ce934cdc7/FLAGd78a1df98 [2020-09-15 14:24:48,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ac4fe7efb/a7b89827d4a0418e85aace2ce934cdc7 [2020-09-15 14:24:48,892 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-15 14:24:48,898 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-15 14:24:48,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-15 14:24:48,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-15 14:24:48,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-15 14:24:48,905 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 02:24:48" (1/1) ... [2020-09-15 14:24:48,909 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284d0cf4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:24:48, skipping insertion in model container [2020-09-15 14:24:48,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.09 02:24:48" (1/1) ... [2020-09-15 14:24:48,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-15 14:24:48,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-15 14:24:49,456 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 14:24:49,471 INFO L203 MainTranslator]: Completed pre-run [2020-09-15 14:24:49,541 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-15 14:24:49,646 INFO L208 MainTranslator]: Completed translation [2020-09-15 14:24:49,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:24:49 WrapperNode [2020-09-15 14:24:49,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-15 14:24:49,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-15 14:24:49,649 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-15 14:24:49,649 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-15 14:24:49,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:24:49" (1/1) ... [2020-09-15 14:24:49,706 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:24:49" (1/1) ... [2020-09-15 14:24:49,738 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-15 14:24:49,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-15 14:24:49,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-15 14:24:49,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-15 14:24:49,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:24:49" (1/1) ... [2020-09-15 14:24:49,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:24:49" (1/1) ... [2020-09-15 14:24:49,753 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:24:49" (1/1) ... [2020-09-15 14:24:49,753 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:24:49" (1/1) ... [2020-09-15 14:24:49,760 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:24:49" (1/1) ... [2020-09-15 14:24:49,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:24:49" (1/1) ... [2020-09-15 14:24:49,769 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:24:49" (1/1) ... [2020-09-15 14:24:49,773 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-15 14:24:49,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-15 14:24:49,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-15 14:24:49,774 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-15 14:24:49,775 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:24:49" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-15 14:24:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-15 14:24:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-09-15 14:24:49,864 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-09-15 14:24:49,864 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-15 14:24:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-15 14:24:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-15 14:24:49,865 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-15 14:24:49,865 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-15 14:24:49,868 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-15 14:24:50,536 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-15 14:24:50,537 INFO L295 CfgBuilder]: Removed 9 assume(true) statements. [2020-09-15 14:24:50,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 02:24:50 BoogieIcfgContainer [2020-09-15 14:24:50,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-15 14:24:50,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-15 14:24:50,545 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-15 14:24:50,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-15 14:24:50,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.09 02:24:48" (1/3) ... [2020-09-15 14:24:50,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f7d85c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 02:24:50, skipping insertion in model container [2020-09-15 14:24:50,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.09 02:24:49" (2/3) ... [2020-09-15 14:24:50,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18f7d85c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.09 02:24:50, skipping insertion in model container [2020-09-15 14:24:50,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.09 02:24:50" (3/3) ... [2020-09-15 14:24:50,553 INFO L109 eAbstractionObserver]: Analyzing ICFG 48_ticket_lock_low_contention_vs.i [2020-09-15 14:24:50,566 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-15 14:24:50,566 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-15 14:24:50,577 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-15 14:24:50,579 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-15 14:24:50,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,608 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,608 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,609 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,609 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,609 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,609 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,610 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,610 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,613 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,614 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,619 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,620 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,620 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,621 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,621 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,622 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,622 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,623 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:50,651 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-15 14:24:50,681 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 14:24:50,682 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 14:24:50,682 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 14:24:50,682 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 14:24:50,682 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 14:24:50,683 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 14:24:50,683 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 14:24:50,683 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 14:24:50,704 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 68 places, 72 transitions, 149 flow [2020-09-15 14:24:50,707 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 68 places, 72 transitions, 149 flow [2020-09-15 14:24:50,765 INFO L129 PetriNetUnfolder]: 11/110 cut-off events. [2020-09-15 14:24:50,765 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 14:24:50,773 INFO L80 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 110 events. 11/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 253 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 61. Up to 4 conditions per place. [2020-09-15 14:24:50,777 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 68 places, 72 transitions, 149 flow [2020-09-15 14:24:50,803 INFO L129 PetriNetUnfolder]: 11/110 cut-off events. [2020-09-15 14:24:50,803 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-15 14:24:50,834 INFO L80 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 110 events. 11/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 253 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 61. Up to 4 conditions per place. [2020-09-15 14:24:50,837 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1760 [2020-09-15 14:24:50,839 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 14:24:51,664 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4131 [2020-09-15 14:24:51,665 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2020-09-15 14:24:51,670 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 34 transitions, 73 flow [2020-09-15 14:24:51,692 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 223 states. [2020-09-15 14:24:51,695 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states. [2020-09-15 14:24:51,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-09-15 14:24:51,704 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 14:24:51,705 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-09-15 14:24:51,706 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 14:24:51,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 14:24:51,715 INFO L82 PathProgramCache]: Analyzing trace with hash 340624438, now seen corresponding path program 1 times [2020-09-15 14:24:51,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 14:24:51,741 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504075962] [2020-09-15 14:24:51,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 14:24:51,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 14:24:51,958 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 14:24:51,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504075962] [2020-09-15 14:24:51,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 14:24:51,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 14:24:51,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2123014394] [2020-09-15 14:24:51,963 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 14:24:51,967 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 14:24:51,981 INFO L274 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-09-15 14:24:51,982 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 14:24:51,984 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 14:24:51,985 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-15 14:24:51,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 14:24:51,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-15 14:24:52,000 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 14:24:52,003 INFO L87 Difference]: Start difference. First operand 223 states. Second operand 2 states. [2020-09-15 14:24:52,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 14:24:52,025 INFO L93 Difference]: Finished difference Result 223 states and 432 transitions. [2020-09-15 14:24:52,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-15 14:24:52,027 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-09-15 14:24:52,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 14:24:52,045 INFO L225 Difference]: With dead ends: 223 [2020-09-15 14:24:52,046 INFO L226 Difference]: Without dead ends: 181 [2020-09-15 14:24:52,048 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 14:24:52,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2020-09-15 14:24:52,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2020-09-15 14:24:52,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-15 14:24:52,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 354 transitions. [2020-09-15 14:24:52,117 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 354 transitions. Word has length 5 [2020-09-15 14:24:52,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 14:24:52,117 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 354 transitions. [2020-09-15 14:24:52,118 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-15 14:24:52,118 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 354 transitions. [2020-09-15 14:24:52,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-09-15 14:24:52,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 14:24:52,119 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1] [2020-09-15 14:24:52,119 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-15 14:24:52,120 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 14:24:52,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 14:24:52,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1958830225, now seen corresponding path program 1 times [2020-09-15 14:24:52,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 14:24:52,121 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069089611] [2020-09-15 14:24:52,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 14:24:52,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 14:24:52,145 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 14:24:52,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 14:24:52,160 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 14:24:52,188 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-15 14:24:52,188 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-15 14:24:52,190 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-15 14:24:52,191 WARN L363 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-15 14:24:52,192 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2020-09-15 14:24:52,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,205 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,206 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,206 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,207 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,208 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,208 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,209 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,209 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,211 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,212 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,212 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,212 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,213 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,213 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,213 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,213 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,214 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,214 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,214 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,214 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,214 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,215 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,215 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,215 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,216 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,216 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,217 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,217 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,217 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,218 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,232 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,232 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,232 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,232 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,233 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,233 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,233 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,233 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,235 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,236 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,237 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,238 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,242 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,242 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,243 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,244 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,244 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,245 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,245 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,246 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,246 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,253 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,253 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,253 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,253 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,253 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,254 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,254 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,254 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,255 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,255 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,255 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:52,257 INFO L251 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-09-15 14:24:52,257 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 14:24:52,257 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 14:24:52,258 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 14:24:52,258 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 14:24:52,258 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 14:24:52,258 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 14:24:52,258 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 14:24:52,258 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 14:24:52,261 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 95 transitions, 202 flow [2020-09-15 14:24:52,261 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 90 places, 95 transitions, 202 flow [2020-09-15 14:24:52,319 INFO L129 PetriNetUnfolder]: 18/172 cut-off events. [2020-09-15 14:24:52,319 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-09-15 14:24:52,321 INFO L80 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 172 events. 18/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 553 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 111. Up to 6 conditions per place. [2020-09-15 14:24:52,330 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 90 places, 95 transitions, 202 flow [2020-09-15 14:24:52,371 INFO L129 PetriNetUnfolder]: 18/172 cut-off events. [2020-09-15 14:24:52,371 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-09-15 14:24:52,376 INFO L80 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 172 events. 18/172 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 553 event pairs, 0 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 111. Up to 6 conditions per place. [2020-09-15 14:24:52,381 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 4532 [2020-09-15 14:24:52,385 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 14:24:53,274 INFO L206 etLargeBlockEncoding]: Checked pairs total: 10890 [2020-09-15 14:24:53,275 INFO L214 etLargeBlockEncoding]: Total number of compositions: 55 [2020-09-15 14:24:53,275 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 46 places, 48 transitions, 108 flow [2020-09-15 14:24:53,420 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 2706 states. [2020-09-15 14:24:53,421 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states. [2020-09-15 14:24:53,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-09-15 14:24:53,422 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 14:24:53,423 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-09-15 14:24:53,423 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 14:24:53,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 14:24:53,425 INFO L82 PathProgramCache]: Analyzing trace with hash 508549684, now seen corresponding path program 1 times [2020-09-15 14:24:53,425 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 14:24:53,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665617337] [2020-09-15 14:24:53,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 14:24:53,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 14:24:53,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 14:24:53,532 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665617337] [2020-09-15 14:24:53,532 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 14:24:53,533 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 14:24:53,533 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [817989981] [2020-09-15 14:24:53,533 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 14:24:53,534 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 14:24:53,534 INFO L274 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-09-15 14:24:53,538 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 14:24:53,538 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 14:24:53,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-15 14:24:53,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 14:24:53,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-15 14:24:53,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 14:24:53,539 INFO L87 Difference]: Start difference. First operand 2706 states. Second operand 2 states. [2020-09-15 14:24:53,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 14:24:53,608 INFO L93 Difference]: Finished difference Result 2706 states and 7907 transitions. [2020-09-15 14:24:53,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-15 14:24:53,608 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-09-15 14:24:53,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 14:24:53,637 INFO L225 Difference]: With dead ends: 2706 [2020-09-15 14:24:53,638 INFO L226 Difference]: Without dead ends: 2484 [2020-09-15 14:24:53,638 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 14:24:53,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2484 states. [2020-09-15 14:24:53,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2484 to 2484. [2020-09-15 14:24:53,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2484 states. [2020-09-15 14:24:53,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2484 states to 2484 states and 7289 transitions. [2020-09-15 14:24:53,767 INFO L78 Accepts]: Start accepts. Automaton has 2484 states and 7289 transitions. Word has length 5 [2020-09-15 14:24:53,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 14:24:53,767 INFO L479 AbstractCegarLoop]: Abstraction has 2484 states and 7289 transitions. [2020-09-15 14:24:53,767 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-15 14:24:53,767 INFO L276 IsEmpty]: Start isEmpty. Operand 2484 states and 7289 transitions. [2020-09-15 14:24:53,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-15 14:24:53,768 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 14:24:53,768 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-15 14:24:53,768 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-15 14:24:53,768 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 14:24:53,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 14:24:53,769 INFO L82 PathProgramCache]: Analyzing trace with hash -912847861, now seen corresponding path program 1 times [2020-09-15 14:24:53,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 14:24:53,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1804071715] [2020-09-15 14:24:53,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 14:24:53,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 14:24:53,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 14:24:53,843 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1804071715] [2020-09-15 14:24:53,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 14:24:53,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 14:24:53,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [953963494] [2020-09-15 14:24:53,843 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 14:24:53,844 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 14:24:53,845 INFO L274 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-09-15 14:24:53,845 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 14:24:53,845 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 14:24:53,846 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 14:24:53,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 14:24:53,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 14:24:53,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 14:24:53,847 INFO L87 Difference]: Start difference. First operand 2484 states and 7289 transitions. Second operand 3 states. [2020-09-15 14:24:53,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 14:24:53,916 INFO L93 Difference]: Finished difference Result 2629 states and 7439 transitions. [2020-09-15 14:24:53,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 14:24:53,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-09-15 14:24:53,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 14:24:53,934 INFO L225 Difference]: With dead ends: 2629 [2020-09-15 14:24:53,934 INFO L226 Difference]: Without dead ends: 2204 [2020-09-15 14:24:53,935 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 14:24:53,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2020-09-15 14:24:53,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 2024. [2020-09-15 14:24:53,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2024 states. [2020-09-15 14:24:54,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 5749 transitions. [2020-09-15 14:24:54,007 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 5749 transitions. Word has length 7 [2020-09-15 14:24:54,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 14:24:54,008 INFO L479 AbstractCegarLoop]: Abstraction has 2024 states and 5749 transitions. [2020-09-15 14:24:54,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 14:24:54,008 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 5749 transitions. [2020-09-15 14:24:54,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-15 14:24:54,038 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 14:24:54,038 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1] [2020-09-15 14:24:54,038 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-15 14:24:54,038 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 14:24:54,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 14:24:54,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1015550492, now seen corresponding path program 1 times [2020-09-15 14:24:54,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 14:24:54,040 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378550302] [2020-09-15 14:24:54,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 14:24:54,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 14:24:54,070 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 14:24:54,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 14:24:54,099 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 14:24:54,112 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-15 14:24:54,112 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-15 14:24:54,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-15 14:24:54,113 WARN L363 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-15 14:24:54,117 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2020-09-15 14:24:54,131 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,131 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,132 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,132 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,132 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,132 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,132 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,132 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,138 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,138 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,138 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,138 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,138 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,142 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,143 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,143 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,143 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,143 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,144 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,144 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,145 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,145 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,146 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,147 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,147 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,147 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,147 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,147 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,147 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,148 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,148 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,149 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,149 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,149 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,149 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,149 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,149 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,149 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,149 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,150 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,150 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,150 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,150 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,150 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,150 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,152 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,153 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,153 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,153 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,157 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,157 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,157 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,158 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,158 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,160 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,160 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,160 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,160 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,160 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,161 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,161 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,162 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,169 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,170 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,170 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,170 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,170 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,170 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,170 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,171 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,171 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,172 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,172 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:24:54,173 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-09-15 14:24:54,174 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 14:24:54,174 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 14:24:54,174 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 14:24:54,174 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 14:24:54,174 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 14:24:54,174 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 14:24:54,174 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 14:24:54,175 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 14:24:54,177 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 118 transitions, 257 flow [2020-09-15 14:24:54,177 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 112 places, 118 transitions, 257 flow [2020-09-15 14:24:54,204 INFO L129 PetriNetUnfolder]: 25/234 cut-off events. [2020-09-15 14:24:54,205 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-09-15 14:24:54,208 INFO L80 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 234 events. 25/234 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 863 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 176. Up to 8 conditions per place. [2020-09-15 14:24:54,218 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 112 places, 118 transitions, 257 flow [2020-09-15 14:24:54,242 INFO L129 PetriNetUnfolder]: 25/234 cut-off events. [2020-09-15 14:24:54,243 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2020-09-15 14:24:54,245 INFO L80 FinitePrefix]: Finished finitePrefix Result has 250 conditions, 234 events. 25/234 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 863 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 176. Up to 8 conditions per place. [2020-09-15 14:24:54,256 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 8316 [2020-09-15 14:24:54,256 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 14:24:55,257 INFO L206 etLargeBlockEncoding]: Checked pairs total: 19134 [2020-09-15 14:24:55,258 INFO L214 etLargeBlockEncoding]: Total number of compositions: 65 [2020-09-15 14:24:55,258 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 59 places, 60 transitions, 141 flow [2020-09-15 14:24:58,260 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 30003 states. [2020-09-15 14:24:58,260 INFO L276 IsEmpty]: Start isEmpty. Operand 30003 states. [2020-09-15 14:24:58,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-09-15 14:24:58,261 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 14:24:58,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-09-15 14:24:58,261 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 14:24:58,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 14:24:58,262 INFO L82 PathProgramCache]: Analyzing trace with hash 708949697, now seen corresponding path program 1 times [2020-09-15 14:24:58,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 14:24:58,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404016885] [2020-09-15 14:24:58,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 14:24:58,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 14:24:58,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 14:24:58,286 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404016885] [2020-09-15 14:24:58,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 14:24:58,287 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 14:24:58,287 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1394273050] [2020-09-15 14:24:58,287 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 14:24:58,288 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 14:24:58,288 INFO L274 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-09-15 14:24:58,288 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 14:24:58,289 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 14:24:58,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-15 14:24:58,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 14:24:58,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-15 14:24:58,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 14:24:58,290 INFO L87 Difference]: Start difference. First operand 30003 states. Second operand 2 states. [2020-09-15 14:24:59,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 14:24:59,311 INFO L93 Difference]: Finished difference Result 30003 states and 117604 transitions. [2020-09-15 14:24:59,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-15 14:24:59,312 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-09-15 14:24:59,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 14:24:59,512 INFO L225 Difference]: With dead ends: 30003 [2020-09-15 14:24:59,513 INFO L226 Difference]: Without dead ends: 29067 [2020-09-15 14:24:59,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 14:25:00,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29067 states. [2020-09-15 14:25:00,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29067 to 29067. [2020-09-15 14:25:00,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29067 states. [2020-09-15 14:25:01,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29067 states to 29067 states and 114088 transitions. [2020-09-15 14:25:01,028 INFO L78 Accepts]: Start accepts. Automaton has 29067 states and 114088 transitions. Word has length 5 [2020-09-15 14:25:01,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 14:25:01,029 INFO L479 AbstractCegarLoop]: Abstraction has 29067 states and 114088 transitions. [2020-09-15 14:25:01,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-15 14:25:01,029 INFO L276 IsEmpty]: Start isEmpty. Operand 29067 states and 114088 transitions. [2020-09-15 14:25:01,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-15 14:25:01,029 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 14:25:01,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-15 14:25:01,030 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-15 14:25:01,030 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 14:25:01,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 14:25:01,030 INFO L82 PathProgramCache]: Analyzing trace with hash -1601966740, now seen corresponding path program 1 times [2020-09-15 14:25:01,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 14:25:01,031 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611375037] [2020-09-15 14:25:01,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 14:25:01,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 14:25:01,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 14:25:01,069 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611375037] [2020-09-15 14:25:01,070 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 14:25:01,070 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 14:25:01,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1223529350] [2020-09-15 14:25:01,070 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 14:25:01,071 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 14:25:01,072 INFO L274 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-09-15 14:25:01,072 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 14:25:01,072 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 14:25:01,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 14:25:01,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 14:25:01,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 14:25:01,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 14:25:01,073 INFO L87 Difference]: Start difference. First operand 29067 states and 114088 transitions. Second operand 3 states. [2020-09-15 14:25:01,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 14:25:01,386 INFO L93 Difference]: Finished difference Result 36627 states and 139297 transitions. [2020-09-15 14:25:01,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 14:25:01,387 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-09-15 14:25:01,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 14:25:01,564 INFO L225 Difference]: With dead ends: 36627 [2020-09-15 14:25:01,564 INFO L226 Difference]: Without dead ends: 34492 [2020-09-15 14:25:01,565 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 14:25:03,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34492 states. [2020-09-15 14:25:04,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34492 to 30270. [2020-09-15 14:25:04,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30270 states. [2020-09-15 14:25:04,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30270 states to 30270 states and 115972 transitions. [2020-09-15 14:25:04,612 INFO L78 Accepts]: Start accepts. Automaton has 30270 states and 115972 transitions. Word has length 7 [2020-09-15 14:25:04,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 14:25:04,612 INFO L479 AbstractCegarLoop]: Abstraction has 30270 states and 115972 transitions. [2020-09-15 14:25:04,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-15 14:25:04,613 INFO L276 IsEmpty]: Start isEmpty. Operand 30270 states and 115972 transitions. [2020-09-15 14:25:04,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-15 14:25:04,626 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 14:25:04,626 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 1, 1, 1, 1, 1] [2020-09-15 14:25:04,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-15 14:25:04,627 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 14:25:04,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 14:25:04,627 INFO L82 PathProgramCache]: Analyzing trace with hash -943303476, now seen corresponding path program 1 times [2020-09-15 14:25:04,628 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 14:25:04,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232478239] [2020-09-15 14:25:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 14:25:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 14:25:04,663 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 14:25:04,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-15 14:25:04,682 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-15 14:25:04,691 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-09-15 14:25:04,692 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-15 14:25:04,692 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-15 14:25:04,692 WARN L363 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2020-09-15 14:25:04,693 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2020-09-15 14:25:04,710 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,711 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,711 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,711 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,711 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,711 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,712 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,712 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,712 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,712 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,712 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,712 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,712 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,713 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,713 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,713 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,713 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,713 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,713 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,714 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,714 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,714 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,714 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,714 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,714 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,715 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,715 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,715 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,715 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,715 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,715 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,716 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,716 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,716 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,716 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,716 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,716 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,717 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,717 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,717 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,717 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,717 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,717 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,717 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,718 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,718 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,718 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,718 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,718 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,718 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,719 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,719 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,719 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,719 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,719 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,719 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,720 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,720 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,720 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,720 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,720 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,720 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,721 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,721 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,721 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,721 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,721 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,721 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,721 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,722 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,722 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,722 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,722 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,722 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,722 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,723 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,723 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,723 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,723 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,723 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,723 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,724 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,724 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,724 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,724 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,724 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,724 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,725 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,725 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,725 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,725 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,725 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,726 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,726 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,726 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,726 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,726 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,726 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,726 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,726 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,727 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,728 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,729 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,730 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,730 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,731 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,731 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,732 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,733 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,734 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,734 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,735 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,735 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,735 WARN L313 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,736 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,736 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,738 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,738 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,738 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,739 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,739 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,739 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,739 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,739 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,739 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,740 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,740 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,740 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,740 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,740 WARN L313 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,742 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,742 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,743 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,743 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,743 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_#in~l.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,743 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,743 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,743 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,744 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,744 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0___VERIFIER_atomic_fetch_and_inc_~l.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,744 WARN L313 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,744 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,744 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~#l~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,744 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-15 14:25:04,746 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-09-15 14:25:04,746 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-15 14:25:04,747 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-15 14:25:04,747 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-15 14:25:04,747 INFO L378 AbstractCegarLoop]: Backedges is MCR [2020-09-15 14:25:04,747 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-15 14:25:04,747 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-15 14:25:04,747 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-15 14:25:04,747 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-15 14:25:04,749 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 141 transitions, 314 flow [2020-09-15 14:25:04,750 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 134 places, 141 transitions, 314 flow [2020-09-15 14:25:04,787 INFO L129 PetriNetUnfolder]: 32/296 cut-off events. [2020-09-15 14:25:04,787 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-09-15 14:25:04,790 INFO L80 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 296 events. 32/296 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1172 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 242. Up to 10 conditions per place. [2020-09-15 14:25:04,808 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 134 places, 141 transitions, 314 flow [2020-09-15 14:25:04,839 INFO L129 PetriNetUnfolder]: 32/296 cut-off events. [2020-09-15 14:25:04,840 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2020-09-15 14:25:04,843 INFO L80 FinitePrefix]: Finished finitePrefix Result has 319 conditions, 296 events. 32/296 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1172 event pairs, 0 based on Foata normal form. 0/250 useless extension candidates. Maximal degree in co-relation 242. Up to 10 conditions per place. [2020-09-15 14:25:04,853 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 13112 [2020-09-15 14:25:04,853 INFO L182 etLargeBlockEncoding]: Variable Check. [2020-09-15 14:25:05,852 INFO L206 etLargeBlockEncoding]: Checked pairs total: 33957 [2020-09-15 14:25:05,852 INFO L214 etLargeBlockEncoding]: Total number of compositions: 75 [2020-09-15 14:25:05,853 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 74 places, 76 transitions, 184 flow [2020-09-15 14:30:41,127 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 390054 states. [2020-09-15 14:30:41,127 INFO L276 IsEmpty]: Start isEmpty. Operand 390054 states. [2020-09-15 14:30:41,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-09-15 14:30:41,127 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 14:30:41,127 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-09-15 14:30:41,128 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 14:30:41,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 14:30:41,128 INFO L82 PathProgramCache]: Analyzing trace with hash 941769443, now seen corresponding path program 1 times [2020-09-15 14:30:41,128 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 14:30:41,128 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283036670] [2020-09-15 14:30:41,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 14:30:41,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 14:30:41,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 14:30:41,168 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283036670] [2020-09-15 14:30:41,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 14:30:41,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 14:30:41,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [268573179] [2020-09-15 14:30:41,169 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 14:30:41,169 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 14:30:41,169 INFO L274 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-09-15 14:30:41,170 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 14:30:41,170 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 14:30:41,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-15 14:30:41,170 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 14:30:41,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-15 14:30:41,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 14:30:41,171 INFO L87 Difference]: Start difference. First operand 390054 states. Second operand 2 states. [2020-09-15 14:30:50,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 14:30:50,259 INFO L93 Difference]: Finished difference Result 390054 states and 1918907 transitions. [2020-09-15 14:30:50,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-15 14:30:50,259 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2020-09-15 14:30:50,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 14:31:01,362 INFO L225 Difference]: With dead ends: 390054 [2020-09-15 14:31:01,362 INFO L226 Difference]: Without dead ends: 384432 [2020-09-15 14:31:01,363 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-15 14:31:46,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 384432 states. [2020-09-15 14:31:56,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 384432 to 384432. [2020-09-15 14:31:56,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 384432 states. [2020-09-15 14:32:11,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 384432 states to 384432 states and 1892189 transitions. [2020-09-15 14:32:11,577 INFO L78 Accepts]: Start accepts. Automaton has 384432 states and 1892189 transitions. Word has length 5 [2020-09-15 14:32:11,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-15 14:32:11,577 INFO L479 AbstractCegarLoop]: Abstraction has 384432 states and 1892189 transitions. [2020-09-15 14:32:11,577 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-15 14:32:11,577 INFO L276 IsEmpty]: Start isEmpty. Operand 384432 states and 1892189 transitions. [2020-09-15 14:32:11,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-09-15 14:32:11,578 INFO L414 BasicCegarLoop]: Found error trace [2020-09-15 14:32:11,578 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-09-15 14:32:11,578 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-15 14:32:11,578 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-15 14:32:11,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-15 14:32:11,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1202373650, now seen corresponding path program 1 times [2020-09-15 14:32:11,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-15 14:32:11,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036292473] [2020-09-15 14:32:11,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-15 14:32:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-15 14:32:11,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-15 14:32:11,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036292473] [2020-09-15 14:32:11,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-15 14:32:11,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-15 14:32:11,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1372029090] [2020-09-15 14:32:11,646 INFO L216 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-09-15 14:32:11,647 INFO L271 McrAutomatonBuilder]: Started intersection. [2020-09-15 14:32:11,647 INFO L274 McrAutomatonBuilder]: Finished intersection with 8 states and 7 transitions. [2020-09-15 14:32:11,647 INFO L299 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-09-15 14:32:11,647 INFO L399 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-09-15 14:32:11,648 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-15 14:32:11,648 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-15 14:32:11,648 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-15 14:32:11,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 14:32:11,648 INFO L87 Difference]: Start difference. First operand 384432 states and 1892189 transitions. Second operand 3 states. [2020-09-15 14:32:40,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-15 14:32:40,542 INFO L93 Difference]: Finished difference Result 530219 states and 2515400 transitions. [2020-09-15 14:32:40,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-15 14:32:40,543 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-09-15 14:32:40,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-15 14:32:44,499 INFO L225 Difference]: With dead ends: 530219 [2020-09-15 14:32:44,499 INFO L226 Difference]: Without dead ends: 516994 [2020-09-15 14:32:44,499 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-15 14:33:18,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 516994 states.