/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 14:31:19,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 14:31:19,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 14:31:19,343 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 14:31:19,343 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 14:31:19,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 14:31:19,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 14:31:19,357 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 14:31:19,360 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 14:31:19,363 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 14:31:19,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 14:31:19,367 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 14:31:19,367 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 14:31:19,369 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 14:31:19,371 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 14:31:19,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 14:31:19,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 14:31:19,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 14:31:19,377 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 14:31:19,382 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 14:31:19,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 14:31:19,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 14:31:19,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 14:31:19,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 14:31:19,396 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 14:31:19,396 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 14:31:19,396 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 14:31:19,398 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 14:31:19,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 14:31:19,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 14:31:19,401 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 14:31:19,401 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 14:31:19,402 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 14:31:19,403 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 14:31:19,404 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 14:31:19,405 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 14:31:19,405 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 14:31:19,405 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 14:31:19,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 14:31:19,406 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 14:31:19,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 14:31:19,409 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-04-17 14:31:19,437 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 14:31:19,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 14:31:19,438 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 14:31:19,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 14:31:19,438 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 14:31:19,439 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 14:31:19,439 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 14:31:19,439 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 14:31:19,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 14:31:19,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 14:31:19,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 14:31:19,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 14:31:19,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 14:31:19,440 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 14:31:19,440 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 14:31:19,441 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 14:31:19,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 14:31:19,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 14:31:19,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 14:31:19,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 14:31:19,442 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 14:31:19,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 14:31:19,442 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 14:31:19,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 14:31:19,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 14:31:19,443 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 14:31:19,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 14:31:19,443 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 14:31:19,443 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 14:31:19,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 14:31:19,731 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 14:31:19,743 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 14:31:19,746 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 14:31:19,747 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 14:31:19,748 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 14:31:19,748 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-04-17 14:31:19,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a5f5f55/d53a43b677fe42ed95ed583ca17d6572/FLAG3d81bebaf [2020-04-17 14:31:20,378 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 14:31:20,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-04-17 14:31:20,397 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a5f5f55/d53a43b677fe42ed95ed583ca17d6572/FLAG3d81bebaf [2020-04-17 14:31:20,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29a5f5f55/d53a43b677fe42ed95ed583ca17d6572 [2020-04-17 14:31:20,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 14:31:20,724 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 14:31:20,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 14:31:20,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 14:31:20,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 14:31:20,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 02:31:20" (1/1) ... [2020-04-17 14:31:20,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@103992b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:20, skipping insertion in model container [2020-04-17 14:31:20,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 02:31:20" (1/1) ... [2020-04-17 14:31:20,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 14:31:20,783 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 14:31:21,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 14:31:21,263 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 14:31:21,310 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 14:31:21,387 INFO L208 MainTranslator]: Completed translation [2020-04-17 14:31:21,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:21 WrapperNode [2020-04-17 14:31:21,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 14:31:21,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 14:31:21,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 14:31:21,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 14:31:21,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:21" (1/1) ... [2020-04-17 14:31:21,415 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:21" (1/1) ... [2020-04-17 14:31:21,439 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 14:31:21,440 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 14:31:21,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 14:31:21,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 14:31:21,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:21" (1/1) ... [2020-04-17 14:31:21,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:21" (1/1) ... [2020-04-17 14:31:21,454 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:21" (1/1) ... [2020-04-17 14:31:21,454 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:21" (1/1) ... [2020-04-17 14:31:21,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:21" (1/1) ... [2020-04-17 14:31:21,464 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:21" (1/1) ... [2020-04-17 14:31:21,466 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:21" (1/1) ... [2020-04-17 14:31:21,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 14:31:21,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 14:31:21,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 14:31:21,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 14:31:21,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:21" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 14:31:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2020-04-17 14:31:21,530 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2020-04-17 14:31:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-17 14:31:21,530 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2020-04-17 14:31:21,531 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2020-04-17 14:31:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 14:31:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-04-17 14:31:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 14:31:21,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 14:31:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-04-17 14:31:21,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 14:31:21,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 14:31:21,534 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 14:31:21,964 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 14:31:21,965 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-04-17 14:31:21,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 02:31:21 BoogieIcfgContainer [2020-04-17 14:31:21,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 14:31:21,970 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 14:31:21,970 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 14:31:21,973 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 14:31:21,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 02:31:20" (1/3) ... [2020-04-17 14:31:21,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54635900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 02:31:21, skipping insertion in model container [2020-04-17 14:31:21,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:21" (2/3) ... [2020-04-17 14:31:21,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54635900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 02:31:21, skipping insertion in model container [2020-04-17 14:31:21,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 02:31:21" (3/3) ... [2020-04-17 14:31:21,978 INFO L109 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2020-04-17 14:31:21,987 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 14:31:21,988 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 14:31:21,994 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-17 14:31:21,995 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 14:31:22,021 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,021 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,022 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,022 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,022 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,023 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,023 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,023 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,024 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,024 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,025 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,026 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,026 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,026 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,026 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,027 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,027 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,028 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,032 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,032 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,033 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,033 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,033 WARN L315 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,034 WARN L315 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,039 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,039 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,040 WARN L315 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,040 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,040 WARN L315 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:22,070 INFO L251 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-04-17 14:31:22,087 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 14:31:22,088 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 14:31:22,088 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 14:31:22,088 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 14:31:22,088 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 14:31:22,088 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 14:31:22,089 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 14:31:22,089 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 14:31:22,106 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 84 transitions, 190 flow [2020-04-17 14:31:22,108 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 190 flow [2020-04-17 14:31:22,158 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2020-04-17 14:31:22,158 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-17 14:31:22,164 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 84 events. 6/84 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2020-04-17 14:31:22,167 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 190 flow [2020-04-17 14:31:22,193 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2020-04-17 14:31:22,193 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-04-17 14:31:22,195 INFO L80 FinitePrefix]: Finished finitePrefix Result has 95 conditions, 84 events. 6/84 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 99 event pairs, 0 based on Foata normal form. 0/77 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2020-04-17 14:31:22,197 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 886 [2020-04-17 14:31:22,199 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 14:31:24,290 WARN L192 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-04-17 14:31:24,396 WARN L192 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-04-17 14:31:24,785 WARN L192 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104 [2020-04-17 14:31:24,935 WARN L192 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-04-17 14:31:25,154 WARN L192 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-04-17 14:31:25,331 WARN L192 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-04-17 14:31:25,352 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2737 [2020-04-17 14:31:25,352 INFO L214 etLargeBlockEncoding]: Total number of compositions: 66 [2020-04-17 14:31:25,356 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 34 places, 31 transitions, 84 flow [2020-04-17 14:31:25,376 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 197 states. [2020-04-17 14:31:25,378 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states. [2020-04-17 14:31:25,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-17 14:31:25,385 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:31:25,386 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-04-17 14:31:25,386 INFO L427 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 14:31:25,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:31:25,393 INFO L82 PathProgramCache]: Analyzing trace with hash 304074620, now seen corresponding path program 1 times [2020-04-17 14:31:25,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:31:25,403 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659840472] [2020-04-17 14:31:25,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:31:25,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:31:25,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:31:25,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659840472] [2020-04-17 14:31:25,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:31:25,595 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 14:31:25,596 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022980105] [2020-04-17 14:31:25,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 14:31:25,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:31:25,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 14:31:25,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 14:31:25,620 INFO L87 Difference]: Start difference. First operand 197 states. Second operand 3 states. [2020-04-17 14:31:25,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:31:25,672 INFO L93 Difference]: Finished difference Result 197 states and 434 transitions. [2020-04-17 14:31:25,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 14:31:25,674 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-04-17 14:31:25,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:31:25,709 INFO L225 Difference]: With dead ends: 197 [2020-04-17 14:31:25,710 INFO L226 Difference]: Without dead ends: 167 [2020-04-17 14:31:25,711 INFO L678 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 [2020-04-17 14:31:25,734 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-04-17 14:31:25,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2020-04-17 14:31:25,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-04-17 14:31:25,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 363 transitions. [2020-04-17 14:31:25,784 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 363 transitions. Word has length 5 [2020-04-17 14:31:25,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:31:25,784 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 363 transitions. [2020-04-17 14:31:25,784 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 14:31:25,785 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 363 transitions. [2020-04-17 14:31:25,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-17 14:31:25,786 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:31:25,786 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:31:25,786 INFO L427 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 14:31:25,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:31:25,787 INFO L82 PathProgramCache]: Analyzing trace with hash 137181791, now seen corresponding path program 1 times [2020-04-17 14:31:25,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:31:25,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823795303] [2020-04-17 14:31:25,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:31:25,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:31:25,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:31:25,858 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823795303] [2020-04-17 14:31:25,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:31:25,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 14:31:25,858 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50443444] [2020-04-17 14:31:25,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 14:31:25,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:31:25,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 14:31:25,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 14:31:25,861 INFO L87 Difference]: Start difference. First operand 167 states and 363 transitions. Second operand 3 states. [2020-04-17 14:31:25,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:31:25,900 INFO L93 Difference]: Finished difference Result 182 states and 370 transitions. [2020-04-17 14:31:25,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 14:31:25,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-04-17 14:31:25,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:31:25,904 INFO L225 Difference]: With dead ends: 182 [2020-04-17 14:31:25,904 INFO L226 Difference]: Without dead ends: 157 [2020-04-17 14:31:25,905 INFO L678 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 [2020-04-17 14:31:25,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-04-17 14:31:25,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 143. [2020-04-17 14:31:25,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 143 states. [2020-04-17 14:31:25,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 302 transitions. [2020-04-17 14:31:25,933 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 302 transitions. Word has length 7 [2020-04-17 14:31:25,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:31:25,934 INFO L479 AbstractCegarLoop]: Abstraction has 143 states and 302 transitions. [2020-04-17 14:31:25,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 14:31:25,936 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 302 transitions. [2020-04-17 14:31:25,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 14:31:25,937 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:31:25,938 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:31:25,938 INFO L427 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 14:31:25,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:31:25,939 INFO L82 PathProgramCache]: Analyzing trace with hash 610856971, now seen corresponding path program 1 times [2020-04-17 14:31:25,939 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:31:25,940 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351952644] [2020-04-17 14:31:25,940 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:31:25,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:31:26,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:31:26,001 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351952644] [2020-04-17 14:31:26,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:31:26,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 14:31:26,002 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422077932] [2020-04-17 14:31:26,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 14:31:26,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:31:26,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 14:31:26,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 14:31:26,004 INFO L87 Difference]: Start difference. First operand 143 states and 302 transitions. Second operand 3 states. [2020-04-17 14:31:26,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:31:26,021 INFO L93 Difference]: Finished difference Result 138 states and 278 transitions. [2020-04-17 14:31:26,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 14:31:26,021 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-04-17 14:31:26,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:31:26,022 INFO L225 Difference]: With dead ends: 138 [2020-04-17 14:31:26,023 INFO L226 Difference]: Without dead ends: 84 [2020-04-17 14:31:26,023 INFO L678 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 [2020-04-17 14:31:26,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2020-04-17 14:31:26,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2020-04-17 14:31:26,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2020-04-17 14:31:26,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 151 transitions. [2020-04-17 14:31:26,030 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 151 transitions. Word has length 8 [2020-04-17 14:31:26,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:31:26,031 INFO L479 AbstractCegarLoop]: Abstraction has 84 states and 151 transitions. [2020-04-17 14:31:26,031 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 14:31:26,031 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 151 transitions. [2020-04-17 14:31:26,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 14:31:26,032 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:31:26,032 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:31:26,032 INFO L427 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 14:31:26,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:31:26,033 INFO L82 PathProgramCache]: Analyzing trace with hash -2030863522, now seen corresponding path program 1 times [2020-04-17 14:31:26,033 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:31:26,033 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677472002] [2020-04-17 14:31:26,034 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:31:26,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:31:26,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:31:26,143 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677472002] [2020-04-17 14:31:26,143 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:31:26,143 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-04-17 14:31:26,143 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328758474] [2020-04-17 14:31:26,144 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-17 14:31:26,144 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:31:26,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-17 14:31:26,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-04-17 14:31:26,145 INFO L87 Difference]: Start difference. First operand 84 states and 151 transitions. Second operand 6 states. [2020-04-17 14:31:26,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:31:26,256 INFO L93 Difference]: Finished difference Result 76 states and 127 transitions. [2020-04-17 14:31:26,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-17 14:31:26,259 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 12 [2020-04-17 14:31:26,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:31:26,259 INFO L225 Difference]: With dead ends: 76 [2020-04-17 14:31:26,260 INFO L226 Difference]: Without dead ends: 68 [2020-04-17 14:31:26,260 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-04-17 14:31:26,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-04-17 14:31:26,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-04-17 14:31:26,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-04-17 14:31:26,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 111 transitions. [2020-04-17 14:31:26,265 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 111 transitions. Word has length 12 [2020-04-17 14:31:26,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:31:26,265 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 111 transitions. [2020-04-17 14:31:26,266 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-17 14:31:26,266 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 111 transitions. [2020-04-17 14:31:26,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 14:31:26,267 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:31:26,267 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:31:26,267 INFO L427 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 14:31:26,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:31:26,268 INFO L82 PathProgramCache]: Analyzing trace with hash -1821491492, now seen corresponding path program 2 times [2020-04-17 14:31:26,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:31:26,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637619229] [2020-04-17 14:31:26,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:31:26,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:31:26,307 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:31:26,307 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637619229] [2020-04-17 14:31:26,307 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:31:26,308 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 14:31:26,308 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903355879] [2020-04-17 14:31:26,308 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 14:31:26,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:31:26,309 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 14:31:26,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 14:31:26,309 INFO L87 Difference]: Start difference. First operand 68 states and 111 transitions. Second operand 3 states. [2020-04-17 14:31:26,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:31:26,321 INFO L93 Difference]: Finished difference Result 26 states and 40 transitions. [2020-04-17 14:31:26,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 14:31:26,322 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-04-17 14:31:26,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:31:26,323 INFO L225 Difference]: With dead ends: 26 [2020-04-17 14:31:26,323 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 14:31:26,323 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 14:31:26,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 14:31:26,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 14:31:26,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 14:31:26,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 14:31:26,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2020-04-17 14:31:26,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:31:26,325 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 14:31:26,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 14:31:26,325 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 14:31:26,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 14:31:26,328 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 02:31:26 BasicIcfg [2020-04-17 14:31:26,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 14:31:26,331 INFO L168 Benchmark]: Toolchain (without parser) took 5625.68 ms. Allocated memory was 146.8 MB in the beginning and 273.7 MB in the end (delta: 126.9 MB). Free memory was 102.0 MB in the beginning and 196.9 MB in the end (delta: -94.9 MB). Peak memory consumption was 31.9 MB. Max. memory is 7.1 GB. [2020-04-17 14:31:26,331 INFO L168 Benchmark]: CDTParser took 0.37 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-04-17 14:31:26,332 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.24 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 100.0 MB in the beginning and 163.0 MB in the end (delta: -63.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2020-04-17 14:31:26,333 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.70 ms. Allocated memory is still 204.5 MB. Free memory was 163.0 MB in the beginning and 161.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-04-17 14:31:26,334 INFO L168 Benchmark]: Boogie Preprocessor took 29.94 ms. Allocated memory is still 204.5 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-17 14:31:26,335 INFO L168 Benchmark]: RCFGBuilder took 499.01 ms. Allocated memory is still 204.5 MB. Free memory was 159.1 MB in the beginning and 135.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2020-04-17 14:31:26,336 INFO L168 Benchmark]: TraceAbstraction took 4358.71 ms. Allocated memory was 204.5 MB in the beginning and 273.7 MB in the end (delta: 69.2 MB). Free memory was 135.0 MB in the beginning and 196.9 MB in the end (delta: -62.0 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. [2020-04-17 14:31:26,340 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37 ms. Allocated memory is still 146.8 MB. Free memory was 121.8 MB in the beginning and 121.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 663.24 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 100.0 MB in the beginning and 163.0 MB in the end (delta: -63.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.70 ms. Allocated memory is still 204.5 MB. Free memory was 163.0 MB in the beginning and 161.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.94 ms. Allocated memory is still 204.5 MB. Free memory was 161.1 MB in the beginning and 159.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 499.01 ms. Allocated memory is still 204.5 MB. Free memory was 159.1 MB in the beginning and 135.0 MB in the end (delta: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4358.71 ms. Allocated memory was 204.5 MB in the beginning and 273.7 MB in the end (delta: 69.2 MB). Free memory was 135.0 MB in the beginning and 196.9 MB in the end (delta: -62.0 MB). Peak memory consumption was 7.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 3.2s, 84 ProgramPointsBefore, 34 ProgramPointsAfterwards, 84 TransitionsBefore, 31 TransitionsAfterwards, 886 CoEnabledTransitionPairs, 8 FixpointIterations, 40 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 5 ConcurrentYvCompositions, 3 ChoiceCompositions, 403 VarBasedMoverChecksPositive, 44 VarBasedMoverChecksNegative, 29 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2737 CheckedPairsTotal, 66 TotalNumberOfCompositions - PositiveResult [Line: 691]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 699]: 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 3 procedures, 78 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.2s, HoareTripleCheckerStatistics: 125 SDtfs, 90 SDslu, 89 SDs, 0 SdLazy, 45 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=197occurred 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, 14 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 866 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...