/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/19_time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b09bf87 [2020-10-16 12:35:20,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 12:35:20,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 12:35:20,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 12:35:20,321 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 12:35:20,322 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 12:35:20,324 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 12:35:20,325 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 12:35:20,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 12:35:20,328 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 12:35:20,329 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 12:35:20,330 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 12:35:20,330 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 12:35:20,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 12:35:20,334 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 12:35:20,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 12:35:20,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 12:35:20,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 12:35:20,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 12:35:20,349 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 12:35:20,353 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 12:35:20,355 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 12:35:20,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 12:35:20,359 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 12:35:20,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-16 12:35:20,368 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 12:35:20,370 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 12:35:20,371 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 12:35:20,372 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 12:35:20,373 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 12:35:20,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 12:35:20,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 12:35:20,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 12:35:20,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 12:35:20,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 12:35:20,378 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 12:35:20,378 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 [2020-10-16 12:35:20,431 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 12:35:20,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 12:35:20,435 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 12:35:20,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 12:35:20,436 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 12:35:20,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 12:35:20,436 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 12:35:20,436 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 12:35:20,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 12:35:20,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 12:35:20,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 12:35:20,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 12:35:20,438 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 12:35:20,438 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 12:35:20,438 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 12:35:20,438 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 12:35:20,438 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 12:35:20,439 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 12:35:20,439 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 12:35:20,439 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 12:35:20,439 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 12:35:20,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 12:35:20,439 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 12:35:20,439 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-16 12:35:20,440 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 12:35:20,440 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 12:35:20,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 12:35:20,443 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-16 12:35:20,443 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-16 12:35:20,444 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-16 12:35:20,444 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-16 12:35:20,778 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 12:35:20,796 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 12:35:20,800 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 12:35:20,803 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 12:35:20,803 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 12:35:20,804 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-10-16 12:35:20,867 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22f844c7c/6327a0c63c1c4426bbb079027acd4544/FLAGbc2dd7be0 [2020-10-16 12:35:21,432 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 12:35:21,433 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/19_time_var_mutex.i [2020-10-16 12:35:21,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22f844c7c/6327a0c63c1c4426bbb079027acd4544/FLAGbc2dd7be0 [2020-10-16 12:35:21,706 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/22f844c7c/6327a0c63c1c4426bbb079027acd4544 [2020-10-16 12:35:21,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 12:35:21,719 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 12:35:21,720 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 12:35:21,720 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 12:35:21,724 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 12:35:21,725 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:35:21" (1/1) ... [2020-10-16 12:35:21,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a39a493 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:35:21, skipping insertion in model container [2020-10-16 12:35:21,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:35:21" (1/1) ... [2020-10-16 12:35:21,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 12:35:21,775 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 12:35:22,142 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:35:22,162 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 12:35:22,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 12:35:22,376 INFO L208 MainTranslator]: Completed translation [2020-10-16 12:35:22,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:35:22 WrapperNode [2020-10-16 12:35:22,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 12:35:22,378 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 12:35:22,378 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 12:35:22,378 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 12:35:22,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:35:22" (1/1) ... [2020-10-16 12:35:22,403 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:35:22" (1/1) ... [2020-10-16 12:35:22,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 12:35:22,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 12:35:22,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 12:35:22,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 12:35:22,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:35:22" (1/1) ... [2020-10-16 12:35:22,441 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:35:22" (1/1) ... [2020-10-16 12:35:22,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:35:22" (1/1) ... [2020-10-16 12:35:22,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:35:22" (1/1) ... [2020-10-16 12:35:22,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:35:22" (1/1) ... [2020-10-16 12:35:22,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:35:22" (1/1) ... [2020-10-16 12:35:22,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:35:22" (1/1) ... [2020-10-16 12:35:22,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 12:35:22,461 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 12:35:22,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 12:35:22,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 12:35:22,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:35:22" (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 [2020-10-16 12:35:22,534 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 12:35:22,534 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-16 12:35:22,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-16 12:35:22,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 12:35:22,535 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 12:35:22,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 12:35:22,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 12:35:22,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 12:35:22,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 12:35:22,538 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 12:35:23,346 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 12:35:23,346 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-16 12:35:23,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:35:23 BoogieIcfgContainer [2020-10-16 12:35:23,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 12:35:23,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 12:35:23,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 12:35:23,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 12:35:23,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:35:21" (1/3) ... [2020-10-16 12:35:23,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503d8a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:35:23, skipping insertion in model container [2020-10-16 12:35:23,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:35:22" (2/3) ... [2020-10-16 12:35:23,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@503d8a6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:35:23, skipping insertion in model container [2020-10-16 12:35:23,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:35:23" (3/3) ... [2020-10-16 12:35:23,358 INFO L111 eAbstractionObserver]: Analyzing ICFG 19_time_var_mutex.i [2020-10-16 12:35:23,370 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-16 12:35:23,371 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-16 12:35:23,379 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 12:35:23,380 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 12:35:23,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,404 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,405 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,405 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,405 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,406 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,406 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,407 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,407 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,407 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,408 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,408 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,409 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,409 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,409 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,410 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,410 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,411 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,411 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,412 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,412 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,412 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,416 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#t~mem3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,417 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,417 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,418 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,418 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#in~m.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,418 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_#t~mem2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,418 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,418 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_acquire_~m.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_release_#in~m.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,419 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_release_~m.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,419 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 12:35:23,424 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-16 12:35:23,445 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-16 12:35:23,469 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 12:35:23,470 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-16 12:35:23,470 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-16 12:35:23,471 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-16 12:35:23,471 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 12:35:23,471 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 12:35:23,471 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 12:35:23,471 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 12:35:23,482 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-16 12:35:23,483 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 54 places, 54 transitions, 113 flow [2020-10-16 12:35:23,486 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 54 places, 54 transitions, 113 flow [2020-10-16 12:35:23,488 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 54 places, 54 transitions, 113 flow [2020-10-16 12:35:23,521 INFO L129 PetriNetUnfolder]: 4/53 cut-off events. [2020-10-16 12:35:23,522 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 12:35:23,527 INFO L80 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 53 events. 4/53 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 62 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 38. Up to 3 conditions per place. [2020-10-16 12:35:23,528 INFO L117 LiptonReduction]: Number of co-enabled transitions 704 [2020-10-16 12:35:24,997 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2020-10-16 12:35:25,068 INFO L132 LiptonReduction]: Checked pairs total: 2171 [2020-10-16 12:35:25,069 INFO L134 LiptonReduction]: Total number of compositions: 40 [2020-10-16 12:35:25,075 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 21 transitions, 47 flow [2020-10-16 12:35:25,086 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 74 states. [2020-10-16 12:35:25,088 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states. [2020-10-16 12:35:25,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-16 12:35:25,095 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:35:25,095 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 12:35:25,096 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:35:25,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:35:25,100 INFO L82 PathProgramCache]: Analyzing trace with hash 403413595, now seen corresponding path program 1 times [2020-10-16 12:35:25,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:35:25,126 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873813821] [2020-10-16 12:35:25,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:35:25,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:35:25,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:35:25,336 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873813821] [2020-10-16 12:35:25,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:35:25,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:35:25,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1460752159] [2020-10-16 12:35:25,340 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:35:25,343 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:35:25,360 INFO L258 McrAutomatonBuilder]: Finished intersection with 6 states and 5 transitions. [2020-10-16 12:35:25,360 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:35:25,364 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:35:25,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:35:25,366 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:35:25,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:35:25,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:35:25,388 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 3 states. [2020-10-16 12:35:25,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:35:25,410 INFO L93 Difference]: Finished difference Result 74 states and 138 transitions. [2020-10-16 12:35:25,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:35:25,412 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-16 12:35:25,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:35:25,444 INFO L225 Difference]: With dead ends: 74 [2020-10-16 12:35:25,445 INFO L226 Difference]: Without dead ends: 68 [2020-10-16 12:35:25,446 INFO L677 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 [2020-10-16 12:35:25,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-10-16 12:35:25,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-10-16 12:35:25,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-10-16 12:35:25,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 124 transitions. [2020-10-16 12:35:25,492 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 124 transitions. Word has length 5 [2020-10-16 12:35:25,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:35:25,493 INFO L481 AbstractCegarLoop]: Abstraction has 68 states and 124 transitions. [2020-10-16 12:35:25,493 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:35:25,493 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 124 transitions. [2020-10-16 12:35:25,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-10-16 12:35:25,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:35:25,494 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-10-16 12:35:25,494 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 12:35:25,494 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:35:25,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:35:25,495 INFO L82 PathProgramCache]: Analyzing trace with hash -378762693, now seen corresponding path program 1 times [2020-10-16 12:35:25,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:35:25,501 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22567250] [2020-10-16 12:35:25,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:35:25,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:35:25,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:35:25,551 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22567250] [2020-10-16 12:35:25,551 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:35:25,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:35:25,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1787159886] [2020-10-16 12:35:25,552 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:35:25,552 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:35:25,553 INFO L258 McrAutomatonBuilder]: Finished intersection with 7 states and 6 transitions. [2020-10-16 12:35:25,554 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:35:25,554 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:35:25,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:35:25,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:35:25,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:35:25,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:35:25,557 INFO L87 Difference]: Start difference. First operand 68 states and 124 transitions. Second operand 3 states. [2020-10-16 12:35:25,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:35:25,584 INFO L93 Difference]: Finished difference Result 66 states and 112 transitions. [2020-10-16 12:35:25,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:35:25,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-10-16 12:35:25,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:35:25,586 INFO L225 Difference]: With dead ends: 66 [2020-10-16 12:35:25,586 INFO L226 Difference]: Without dead ends: 58 [2020-10-16 12:35:25,587 INFO L677 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 [2020-10-16 12:35:25,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2020-10-16 12:35:25,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 54. [2020-10-16 12:35:25,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2020-10-16 12:35:25,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 95 transitions. [2020-10-16 12:35:25,596 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 95 transitions. Word has length 6 [2020-10-16 12:35:25,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:35:25,597 INFO L481 AbstractCegarLoop]: Abstraction has 54 states and 95 transitions. [2020-10-16 12:35:25,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:35:25,597 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 95 transitions. [2020-10-16 12:35:25,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-16 12:35:25,598 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:35:25,598 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:35:25,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 12:35:25,598 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:35:25,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:35:25,599 INFO L82 PathProgramCache]: Analyzing trace with hash 778386525, now seen corresponding path program 1 times [2020-10-16 12:35:25,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:35:25,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799674765] [2020-10-16 12:35:25,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:35:25,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:35:25,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:35:25,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799674765] [2020-10-16 12:35:25,661 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:35:25,661 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 12:35:25,661 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [687136991] [2020-10-16 12:35:25,661 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:35:25,664 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:35:25,666 INFO L258 McrAutomatonBuilder]: Finished intersection with 9 states and 8 transitions. [2020-10-16 12:35:25,666 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:35:25,666 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-16 12:35:25,667 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 12:35:25,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:35:25,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 12:35:25,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 12:35:25,669 INFO L87 Difference]: Start difference. First operand 54 states and 95 transitions. Second operand 3 states. [2020-10-16 12:35:25,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:35:25,692 INFO L93 Difference]: Finished difference Result 50 states and 82 transitions. [2020-10-16 12:35:25,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:35:25,693 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-16 12:35:25,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:35:25,694 INFO L225 Difference]: With dead ends: 50 [2020-10-16 12:35:25,694 INFO L226 Difference]: Without dead ends: 37 [2020-10-16 12:35:25,694 INFO L677 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 [2020-10-16 12:35:25,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-10-16 12:35:25,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-10-16 12:35:25,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-10-16 12:35:25,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 54 transitions. [2020-10-16 12:35:25,699 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 54 transitions. Word has length 8 [2020-10-16 12:35:25,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:35:25,700 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 54 transitions. [2020-10-16 12:35:25,700 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 12:35:25,700 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 54 transitions. [2020-10-16 12:35:25,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:35:25,701 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:35:25,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:35:25,701 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 12:35:25,701 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:35:25,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:35:25,702 INFO L82 PathProgramCache]: Analyzing trace with hash 537187588, now seen corresponding path program 1 times [2020-10-16 12:35:25,703 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:35:25,703 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365734510] [2020-10-16 12:35:25,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:35:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:35:25,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:35:25,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365734510] [2020-10-16 12:35:25,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:35:25,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 12:35:25,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1559673357] [2020-10-16 12:35:25,750 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:35:25,751 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:35:25,754 INFO L258 McrAutomatonBuilder]: Finished intersection with 16 states and 18 transitions. [2020-10-16 12:35:25,754 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:35:25,763 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [725#(not (= ~busy~0 0))] [2020-10-16 12:35:25,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 12:35:25,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:35:25,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 12:35:25,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:35:25,764 INFO L87 Difference]: Start difference. First operand 37 states and 54 transitions. Second operand 4 states. [2020-10-16 12:35:25,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:35:25,774 INFO L93 Difference]: Finished difference Result 37 states and 51 transitions. [2020-10-16 12:35:25,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 12:35:25,774 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-16 12:35:25,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:35:25,775 INFO L225 Difference]: With dead ends: 37 [2020-10-16 12:35:25,775 INFO L226 Difference]: Without dead ends: 31 [2020-10-16 12:35:25,776 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-16 12:35:25,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-10-16 12:35:25,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-10-16 12:35:25,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-10-16 12:35:25,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 42 transitions. [2020-10-16 12:35:25,779 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 42 transitions. Word has length 11 [2020-10-16 12:35:25,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:35:25,780 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 42 transitions. [2020-10-16 12:35:25,780 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 12:35:25,780 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 42 transitions. [2020-10-16 12:35:25,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-16 12:35:25,781 INFO L414 BasicCegarLoop]: Found error trace [2020-10-16 12:35:25,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 12:35:25,781 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 12:35:25,781 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 12:35:25,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 12:35:25,782 INFO L82 PathProgramCache]: Analyzing trace with hash 93897508, now seen corresponding path program 2 times [2020-10-16 12:35:25,787 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 12:35:25,787 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211798309] [2020-10-16 12:35:25,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 12:35:25,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 12:35:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 12:35:25,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211798309] [2020-10-16 12:35:25,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 12:35:25,861 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 12:35:25,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [834382249] [2020-10-16 12:35:25,861 INFO L200 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-16 12:35:25,862 INFO L255 McrAutomatonBuilder]: Started intersection. [2020-10-16 12:35:25,865 INFO L258 McrAutomatonBuilder]: Finished intersection with 19 states and 24 transitions. [2020-10-16 12:35:25,865 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-16 12:35:25,921 INFO L313 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [831#(not (= (select (select |#memory_int| |~#m_busy~0.base|) |~#m_busy~0.offset|) 0))] [2020-10-16 12:35:25,921 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-16 12:35:25,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 12:35:25,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-16 12:35:25,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-16 12:35:25,922 INFO L87 Difference]: Start difference. First operand 31 states and 42 transitions. Second operand 7 states. [2020-10-16 12:35:25,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-16 12:35:25,959 INFO L93 Difference]: Finished difference Result 11 states and 13 transitions. [2020-10-16 12:35:25,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 12:35:25,960 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-10-16 12:35:25,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-16 12:35:25,960 INFO L225 Difference]: With dead ends: 11 [2020-10-16 12:35:25,961 INFO L226 Difference]: Without dead ends: 0 [2020-10-16 12:35:25,961 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-10-16 12:35:25,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-16 12:35:25,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-16 12:35:25,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-16 12:35:25,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-16 12:35:25,962 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-10-16 12:35:25,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-16 12:35:25,962 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-16 12:35:25,962 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-16 12:35:25,963 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-16 12:35:25,963 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-16 12:35:25,963 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 12:35:25,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:35:25 BasicIcfg [2020-10-16 12:35:25,967 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 12:35:25,969 INFO L168 Benchmark]: Toolchain (without parser) took 4250.66 ms. Allocated memory was 139.5 MB in the beginning and 249.6 MB in the end (delta: 110.1 MB). Free memory was 101.8 MB in the beginning and 167.1 MB in the end (delta: -65.4 MB). Peak memory consumption was 44.7 MB. Max. memory is 7.1 GB. [2020-10-16 12:35:25,970 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-16 12:35:25,971 INFO L168 Benchmark]: CACSL2BoogieTranslator took 657.31 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 162.3 MB in the end (delta: -61.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:35:25,972 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.44 ms. Allocated memory is still 202.4 MB. Free memory was 162.3 MB in the beginning and 160.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:35:25,972 INFO L168 Benchmark]: Boogie Preprocessor took 29.67 ms. Allocated memory is still 202.4 MB. Free memory was 160.3 MB in the beginning and 158.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:35:25,973 INFO L168 Benchmark]: RCFGBuilder took 888.48 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 158.3 MB in the beginning and 207.0 MB in the end (delta: -48.7 MB). Peak memory consumption was 75.5 MB. Max. memory is 7.1 GB. [2020-10-16 12:35:25,974 INFO L168 Benchmark]: TraceAbstraction took 2616.55 ms. Allocated memory was 235.4 MB in the beginning and 249.6 MB in the end (delta: 14.2 MB). Free memory was 207.0 MB in the beginning and 167.1 MB in the end (delta: 39.8 MB). Peak memory consumption was 54.0 MB. Max. memory is 7.1 GB. [2020-10-16 12:35:25,979 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 657.31 ms. Allocated memory was 139.5 MB in the beginning and 202.4 MB in the end (delta: 62.9 MB). Free memory was 101.4 MB in the beginning and 162.3 MB in the end (delta: -61.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.44 ms. Allocated memory is still 202.4 MB. Free memory was 162.3 MB in the beginning and 160.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.67 ms. Allocated memory is still 202.4 MB. Free memory was 160.3 MB in the beginning and 158.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 888.48 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 158.3 MB in the beginning and 207.0 MB in the end (delta: -48.7 MB). Peak memory consumption was 75.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2616.55 ms. Allocated memory was 235.4 MB in the beginning and 249.6 MB in the end (delta: 14.2 MB). Free memory was 207.0 MB in the beginning and 167.1 MB in the end (delta: 39.8 MB). Peak memory consumption was 54.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 374 VarBasedMoverChecksPositive, 35 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 63 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.5s, 54 PlacesBefore, 22 PlacesAfterwards, 54 TransitionsBefore, 21 TransitionsAfterwards, 704 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 40 TotalNumberOfCompositions, 2171 MoverChecksTotal - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 711]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 51 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.6s, HoareTripleCheckerStatistics: 77 SDtfs, 52 SDslu, 39 SDs, 0 SdLazy, 31 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=74occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...