/usr/bin/java -Xmx16000000000 -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/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 00:02:57,971 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 00:02:57,974 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 00:02:57,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 00:02:57,998 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 00:02:57,999 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 00:02:58,000 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 00:02:58,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 00:02:58,004 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 00:02:58,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 00:02:58,005 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 00:02:58,006 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 00:02:58,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 00:02:58,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 00:02:58,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 00:02:58,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 00:02:58,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 00:02:58,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 00:02:58,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 00:02:58,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 00:02:58,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 00:02:58,025 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 00:02:58,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 00:02:58,027 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 00:02:58,032 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 00:02:58,032 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 00:02:58,033 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 00:02:58,033 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 00:02:58,034 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 00:02:58,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 00:02:58,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 00:02:58,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 00:02:58,038 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 00:02:58,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 00:02:58,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 00:02:58,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 00:02:58,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 00:02:58,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 00:02:58,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 00:02:58,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 00:02:58,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 00:02:58,045 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe.epf [2020-10-16 00:02:58,094 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 00:02:58,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 00:02:58,096 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 00:02:58,096 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 00:02:58,096 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 00:02:58,096 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 00:02:58,097 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 00:02:58,097 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 00:02:58,097 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 00:02:58,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 00:02:58,097 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 00:02:58,097 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 00:02:58,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 00:02:58,098 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 00:02:58,098 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 00:02:58,098 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 00:02:58,098 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 00:02:58,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 00:02:58,099 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 00:02:58,099 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 00:02:58,102 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 00:02:58,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 00:02:58,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 00:02:58,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 00:02:58,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 00:02:58,103 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 00:02:58,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 00:02:58,103 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 00:02:58,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 00:02:58,407 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 00:02:58,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 00:02:58,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 00:02:58,427 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 00:02:58,427 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 00:02:58,428 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-10-16 00:02:58,495 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5163542b9/f1ed186779ec4aaeaf368a3cd3685c9c/FLAGd3351463e [2020-10-16 00:02:58,988 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 00:02:58,991 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/time_var_mutex.i [2020-10-16 00:02:59,010 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5163542b9/f1ed186779ec4aaeaf368a3cd3685c9c/FLAGd3351463e [2020-10-16 00:02:59,344 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5163542b9/f1ed186779ec4aaeaf368a3cd3685c9c [2020-10-16 00:02:59,353 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 00:02:59,356 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 00:02:59,357 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 00:02:59,357 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 00:02:59,360 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 00:02:59,361 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:02:59" (1/1) ... [2020-10-16 00:02:59,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@490fb923 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:59, skipping insertion in model container [2020-10-16 00:02:59,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 12:02:59" (1/1) ... [2020-10-16 00:02:59,372 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 00:02:59,408 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 00:02:59,797 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 00:02:59,811 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 00:02:59,853 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 00:02:59,926 INFO L208 MainTranslator]: Completed translation [2020-10-16 00:02:59,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:59 WrapperNode [2020-10-16 00:02:59,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 00:02:59,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 00:02:59,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 00:02:59,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 00:02:59,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:59" (1/1) ... [2020-10-16 00:02:59,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:59" (1/1) ... [2020-10-16 00:02:59,974 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 00:02:59,975 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 00:02:59,975 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 00:02:59,975 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 00:02:59,984 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:59" (1/1) ... [2020-10-16 00:02:59,984 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:59" (1/1) ... [2020-10-16 00:02:59,987 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:59" (1/1) ... [2020-10-16 00:02:59,988 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:59" (1/1) ... [2020-10-16 00:02:59,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:59" (1/1) ... [2020-10-16 00:02:59,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:59" (1/1) ... [2020-10-16 00:02:59,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:59" (1/1) ... [2020-10-16 00:03:00,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 00:03:00,003 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 00:03:00,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 00:03:00,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 00:03:00,004 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:59" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 00:03:00,085 INFO L130 BoogieDeclarations]: Found specification of procedure allocator [2020-10-16 00:03:00,086 INFO L138 BoogieDeclarations]: Found implementation of procedure allocator [2020-10-16 00:03:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-16 00:03:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure de_allocator [2020-10-16 00:03:00,086 INFO L138 BoogieDeclarations]: Found implementation of procedure de_allocator [2020-10-16 00:03:00,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 00:03:00,087 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-16 00:03:00,087 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 00:03:00,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 00:03:00,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-16 00:03:00,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 00:03:00,087 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 00:03:00,089 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 00:03:00,469 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 00:03:00,469 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-16 00:03:00,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:03:00 BoogieIcfgContainer [2020-10-16 00:03:00,471 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 00:03:00,472 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 00:03:00,472 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 00:03:00,475 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 00:03:00,476 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 12:02:59" (1/3) ... [2020-10-16 00:03:00,476 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2179acc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:03:00, skipping insertion in model container [2020-10-16 00:03:00,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 12:02:59" (2/3) ... [2020-10-16 00:03:00,477 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2179acc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 12:03:00, skipping insertion in model container [2020-10-16 00:03:00,477 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 12:03:00" (3/3) ... [2020-10-16 00:03:00,479 INFO L111 eAbstractionObserver]: Analyzing ICFG time_var_mutex.i [2020-10-16 00:03:00,490 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 00:03:00,497 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 00:03:00,498 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 00:03:00,526 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,526 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,527 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,527 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,527 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,528 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,528 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,528 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,529 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,529 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,530 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,530 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,530 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,531 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,531 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,531 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,532 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,532 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,535 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,536 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,536 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,536 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,537 WARN L313 ript$VariableManager]: TermVariabe allocatorThread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,537 WARN L313 ript$VariableManager]: TermVariabe |allocatorThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,543 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,543 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#t~nondet4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,543 WARN L313 ript$VariableManager]: TermVariabe de_allocatorThread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,544 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,544 WARN L313 ript$VariableManager]: TermVariabe |de_allocatorThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 00:03:00,573 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 00:03:00,594 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 00:03:00,594 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 00:03:00,594 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 00:03:00,595 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 00:03:00,595 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 00:03:00,595 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 00:03:00,595 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 00:03:00,595 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 00:03:00,609 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 84 transitions, 190 flow [2020-10-16 00:03:00,654 INFO L129 PetriNetUnfolder]: 6/84 cut-off events. [2020-10-16 00:03:00,654 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 00:03:00,659 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. [2020-10-16 00:03:00,660 INFO L82 GeneralOperation]: Start removeDead. Operand has 84 places, 84 transitions, 190 flow [2020-10-16 00:03:00,666 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 72 transitions, 156 flow [2020-10-16 00:03:00,668 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 00:03:00,671 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 73 places, 72 transitions, 156 flow [2020-10-16 00:03:00,673 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 73 places, 72 transitions, 156 flow [2020-10-16 00:03:00,674 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 73 places, 72 transitions, 156 flow [2020-10-16 00:03:00,694 INFO L129 PetriNetUnfolder]: 5/74 cut-off events. [2020-10-16 00:03:00,695 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 00:03:00,696 INFO L80 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 74 events. 5/74 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 88 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 54. Up to 3 conditions per place. [2020-10-16 00:03:00,698 INFO L117 LiptonReduction]: Number of co-enabled transitions 886 [2020-10-16 00:03:02,318 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-16 00:03:02,436 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-16 00:03:02,826 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 112 [2020-10-16 00:03:02,997 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-10-16 00:03:03,004 INFO L132 LiptonReduction]: Checked pairs total: 3136 [2020-10-16 00:03:03,004 INFO L134 LiptonReduction]: Total number of compositions: 61 [2020-10-16 00:03:03,007 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2341 [2020-10-16 00:03:03,014 INFO L129 PetriNetUnfolder]: 1/9 cut-off events. [2020-10-16 00:03:03,014 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 00:03:03,014 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:03:03,015 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2020-10-16 00:03:03,015 INFO L429 AbstractCegarLoop]: === Iteration 1 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:03:03,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:03:03,021 INFO L82 PathProgramCache]: Analyzing trace with hash 296676810, now seen corresponding path program 1 times [2020-10-16 00:03:03,029 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:03:03,030 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441543470] [2020-10-16 00:03:03,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:03:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:03:03,219 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 00:03:03,219 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441543470] [2020-10-16 00:03:03,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:03:03,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 00:03:03,221 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075101982] [2020-10-16 00:03:03,243 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 00:03:03,244 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:03:03,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 00:03:03,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 00:03:03,257 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 145 [2020-10-16 00:03:03,260 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 64 flow. Second operand 3 states. [2020-10-16 00:03:03,260 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:03:03,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 145 [2020-10-16 00:03:03,270 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:03:03,302 INFO L129 PetriNetUnfolder]: 1/26 cut-off events. [2020-10-16 00:03:03,302 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2020-10-16 00:03:03,303 INFO L80 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 26 events. 1/26 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 41 event pairs, 0 based on Foata normal form. 3/26 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2020-10-16 00:03:03,304 INFO L132 encePairwiseOnDemand]: 141/145 looper letters, 1 selfloop transitions, 2 changer transitions 0/24 dead transitions. [2020-10-16 00:03:03,304 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 66 flow [2020-10-16 00:03:03,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 00:03:03,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 00:03:03,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 345 transitions. [2020-10-16 00:03:03,319 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7931034482758621 [2020-10-16 00:03:03,320 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 345 transitions. [2020-10-16 00:03:03,320 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 345 transitions. [2020-10-16 00:03:03,322 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:03:03,324 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 345 transitions. [2020-10-16 00:03:03,327 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 00:03:03,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 00:03:03,334 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 00:03:03,336 INFO L185 Difference]: Start difference. First operand has 29 places, 26 transitions, 64 flow. Second operand 3 states and 345 transitions. [2020-10-16 00:03:03,337 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 66 flow [2020-10-16 00:03:03,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 24 transitions, 58 flow, removed 0 selfloop flow, removed 4 redundant places. [2020-10-16 00:03:03,342 INFO L241 Difference]: Finished difference. Result has 27 places, 24 transitions, 56 flow [2020-10-16 00:03:03,344 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=56, PETRI_PLACES=27, PETRI_TRANSITIONS=24} [2020-10-16 00:03:03,345 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, -2 predicate places. [2020-10-16 00:03:03,346 INFO L481 AbstractCegarLoop]: Abstraction has has 27 places, 24 transitions, 56 flow [2020-10-16 00:03:03,346 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 00:03:03,346 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:03:03,346 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:03:03,346 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 00:03:03,347 INFO L429 AbstractCegarLoop]: === Iteration 2 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:03:03,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:03:03,347 INFO L82 PathProgramCache]: Analyzing trace with hash 1626154764, now seen corresponding path program 1 times [2020-10-16 00:03:03,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:03:03,348 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163070211] [2020-10-16 00:03:03,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:03:03,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:03:03,447 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 00:03:03,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163070211] [2020-10-16 00:03:03,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:03:03,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 00:03:03,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016494452] [2020-10-16 00:03:03,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 00:03:03,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:03:03,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 00:03:03,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 00:03:03,456 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 145 [2020-10-16 00:03:03,457 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 24 transitions, 56 flow. Second operand 3 states. [2020-10-16 00:03:03,458 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:03:03,458 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 145 [2020-10-16 00:03:03,458 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:03:03,490 INFO L129 PetriNetUnfolder]: 5/64 cut-off events. [2020-10-16 00:03:03,491 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2020-10-16 00:03:03,491 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 64 events. 5/64 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 252 event pairs, 2 based on Foata normal form. 4/57 useless extension candidates. Maximal degree in co-relation 65. Up to 15 conditions per place. [2020-10-16 00:03:03,492 INFO L132 encePairwiseOnDemand]: 139/145 looper letters, 6 selfloop transitions, 4 changer transitions 0/27 dead transitions. [2020-10-16 00:03:03,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 27 transitions, 82 flow [2020-10-16 00:03:03,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 00:03:03,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 00:03:03,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 357 transitions. [2020-10-16 00:03:03,496 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8206896551724138 [2020-10-16 00:03:03,496 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 357 transitions. [2020-10-16 00:03:03,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 357 transitions. [2020-10-16 00:03:03,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:03:03,497 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 357 transitions. [2020-10-16 00:03:03,498 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 00:03:03,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 00:03:03,500 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 00:03:03,500 INFO L185 Difference]: Start difference. First operand has 27 places, 24 transitions, 56 flow. Second operand 3 states and 357 transitions. [2020-10-16 00:03:03,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 27 transitions, 82 flow [2020-10-16 00:03:03,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 27 transitions, 78 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 00:03:03,502 INFO L241 Difference]: Finished difference. Result has 29 places, 26 transitions, 80 flow [2020-10-16 00:03:03,502 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=29, PETRI_TRANSITIONS=26} [2020-10-16 00:03:03,503 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 0 predicate places. [2020-10-16 00:03:03,503 INFO L481 AbstractCegarLoop]: Abstraction has has 29 places, 26 transitions, 80 flow [2020-10-16 00:03:03,503 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 00:03:03,503 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:03:03,503 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:03:03,503 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 00:03:03,504 INFO L429 AbstractCegarLoop]: === Iteration 3 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:03:03,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:03:03,504 INFO L82 PathProgramCache]: Analyzing trace with hash -733998466, now seen corresponding path program 1 times [2020-10-16 00:03:03,504 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:03:03,505 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758028000] [2020-10-16 00:03:03,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:03:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:03:03,547 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 00:03:03,548 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758028000] [2020-10-16 00:03:03,548 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:03:03,548 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-16 00:03:03,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139809398] [2020-10-16 00:03:03,549 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 00:03:03,549 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:03:03,549 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 00:03:03,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 00:03:03,551 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 115 out of 145 [2020-10-16 00:03:03,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 26 transitions, 80 flow. Second operand 3 states. [2020-10-16 00:03:03,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:03:03,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 115 of 145 [2020-10-16 00:03:03,552 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:03:03,621 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2020-10-16 00:03:03,621 INFO L130 PetriNetUnfolder]: For 11/17 co-relation queries the response was YES. [2020-10-16 00:03:03,622 INFO L80 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 53 events. 2/53 cut-off events. For 11/17 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 187 event pairs, 1 based on Foata normal form. 4/51 useless extension candidates. Maximal degree in co-relation 69. Up to 10 conditions per place. [2020-10-16 00:03:03,626 INFO L132 encePairwiseOnDemand]: 141/145 looper letters, 5 selfloop transitions, 3 changer transitions 3/26 dead transitions. [2020-10-16 00:03:03,626 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 26 transitions, 98 flow [2020-10-16 00:03:03,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 00:03:03,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 00:03:03,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 355 transitions. [2020-10-16 00:03:03,629 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8160919540229885 [2020-10-16 00:03:03,629 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 355 transitions. [2020-10-16 00:03:03,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 355 transitions. [2020-10-16 00:03:03,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:03:03,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 355 transitions. [2020-10-16 00:03:03,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 00:03:03,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 00:03:03,634 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 00:03:03,634 INFO L185 Difference]: Start difference. First operand has 29 places, 26 transitions, 80 flow. Second operand 3 states and 355 transitions. [2020-10-16 00:03:03,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 26 transitions, 98 flow [2020-10-16 00:03:03,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 26 transitions, 90 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 00:03:03,639 INFO L241 Difference]: Finished difference. Result has 30 places, 23 transitions, 75 flow [2020-10-16 00:03:03,639 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2020-10-16 00:03:03,639 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 1 predicate places. [2020-10-16 00:03:03,639 INFO L481 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 75 flow [2020-10-16 00:03:03,639 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 00:03:03,640 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:03:03,640 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:03:03,640 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 00:03:03,641 INFO L429 AbstractCegarLoop]: === Iteration 4 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:03:03,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:03:03,641 INFO L82 PathProgramCache]: Analyzing trace with hash -142236598, now seen corresponding path program 1 times [2020-10-16 00:03:03,642 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:03:03,642 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058629361] [2020-10-16 00:03:03,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:03:03,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:03:03,759 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 00:03:03,760 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058629361] [2020-10-16 00:03:03,760 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:03:03,760 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 00:03:03,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955618463] [2020-10-16 00:03:03,761 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 00:03:03,761 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:03:03,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 00:03:03,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-16 00:03:03,764 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 145 [2020-10-16 00:03:03,765 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 75 flow. Second operand 6 states. [2020-10-16 00:03:03,765 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:03:03,765 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 145 [2020-10-16 00:03:03,765 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:03:03,853 INFO L129 PetriNetUnfolder]: 11/74 cut-off events. [2020-10-16 00:03:03,853 INFO L130 PetriNetUnfolder]: For 18/18 co-relation queries the response was YES. [2020-10-16 00:03:03,854 INFO L80 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 74 events. 11/74 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 276 event pairs, 2 based on Foata normal form. 3/73 useless extension candidates. Maximal degree in co-relation 126. Up to 19 conditions per place. [2020-10-16 00:03:03,854 INFO L132 encePairwiseOnDemand]: 137/145 looper letters, 7 selfloop transitions, 10 changer transitions 5/31 dead transitions. [2020-10-16 00:03:03,854 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 31 transitions, 144 flow [2020-10-16 00:03:03,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 00:03:03,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 00:03:03,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 426 transitions. [2020-10-16 00:03:03,857 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.4896551724137931 [2020-10-16 00:03:03,857 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 426 transitions. [2020-10-16 00:03:03,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 426 transitions. [2020-10-16 00:03:03,858 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:03:03,861 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 426 transitions. [2020-10-16 00:03:03,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 00:03:03,864 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 00:03:03,864 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 00:03:03,865 INFO L185 Difference]: Start difference. First operand has 30 places, 23 transitions, 75 flow. Second operand 6 states and 426 transitions. [2020-10-16 00:03:03,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 31 transitions, 144 flow [2020-10-16 00:03:03,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 31 transitions, 140 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-16 00:03:03,867 INFO L241 Difference]: Finished difference. Result has 33 places, 25 transitions, 100 flow [2020-10-16 00:03:03,867 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=100, PETRI_PLACES=33, PETRI_TRANSITIONS=25} [2020-10-16 00:03:03,867 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, 4 predicate places. [2020-10-16 00:03:03,867 INFO L481 AbstractCegarLoop]: Abstraction has has 33 places, 25 transitions, 100 flow [2020-10-16 00:03:03,868 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 00:03:03,868 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 00:03:03,868 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 00:03:03,868 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 00:03:03,868 INFO L429 AbstractCegarLoop]: === Iteration 5 === [de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, de_allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, allocatorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 00:03:03,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 00:03:03,869 INFO L82 PathProgramCache]: Analyzing trace with hash -803394742, now seen corresponding path program 2 times [2020-10-16 00:03:03,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 00:03:03,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768476650] [2020-10-16 00:03:03,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 00:03:03,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 00:03:03,901 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 00:03:03,901 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768476650] [2020-10-16 00:03:03,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 00:03:03,902 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 00:03:03,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25579432] [2020-10-16 00:03:03,902 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 00:03:03,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 00:03:03,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 00:03:03,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 00:03:03,904 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 145 [2020-10-16 00:03:03,905 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 25 transitions, 100 flow. Second operand 3 states. [2020-10-16 00:03:03,905 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 00:03:03,905 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 145 [2020-10-16 00:03:03,905 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 00:03:03,915 INFO L129 PetriNetUnfolder]: 0/17 cut-off events. [2020-10-16 00:03:03,915 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2020-10-16 00:03:03,915 INFO L80 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 17 events. 0/17 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 10 event pairs, 0 based on Foata normal form. 2/19 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2020-10-16 00:03:03,916 INFO L132 encePairwiseOnDemand]: 143/145 looper letters, 0 selfloop transitions, 0 changer transitions 17/17 dead transitions. [2020-10-16 00:03:03,916 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 17 transitions, 63 flow [2020-10-16 00:03:03,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 00:03:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 00:03:03,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2020-10-16 00:03:03,918 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.7885057471264367 [2020-10-16 00:03:03,918 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 343 transitions. [2020-10-16 00:03:03,918 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 343 transitions. [2020-10-16 00:03:03,919 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 00:03:03,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 343 transitions. [2020-10-16 00:03:03,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 00:03:03,921 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 00:03:03,921 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 00:03:03,922 INFO L185 Difference]: Start difference. First operand has 33 places, 25 transitions, 100 flow. Second operand 3 states and 343 transitions. [2020-10-16 00:03:03,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 17 transitions, 63 flow [2020-10-16 00:03:03,922 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 17 transitions, 50 flow, removed 2 selfloop flow, removed 5 redundant places. [2020-10-16 00:03:03,923 INFO L241 Difference]: Finished difference. Result has 25 places, 0 transitions, 0 flow [2020-10-16 00:03:03,923 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=44, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=25, PETRI_TRANSITIONS=0} [2020-10-16 00:03:03,923 INFO L342 CegarLoopForPetriNet]: 29 programPoint places, -4 predicate places. [2020-10-16 00:03:03,924 INFO L481 AbstractCegarLoop]: Abstraction has has 25 places, 0 transitions, 0 flow [2020-10-16 00:03:03,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 00:03:03,924 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 00:03:03,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 12:03:03 BasicIcfg [2020-10-16 00:03:03,928 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 00:03:03,930 INFO L168 Benchmark]: Toolchain (without parser) took 4575.07 ms. Allocated memory was 251.7 MB in the beginning and 371.2 MB in the end (delta: 119.5 MB). Free memory was 207.0 MB in the beginning and 171.3 MB in the end (delta: 35.7 MB). Peak memory consumption was 155.2 MB. Max. memory is 14.2 GB. [2020-10-16 00:03:03,931 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 00:03:03,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 570.41 ms. Allocated memory was 251.7 MB in the beginning and 315.6 MB in the end (delta: 64.0 MB). Free memory was 207.0 MB in the beginning and 271.9 MB in the end (delta: -64.9 MB). Peak memory consumption was 29.7 MB. Max. memory is 14.2 GB. [2020-10-16 00:03:03,933 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.86 ms. Allocated memory is still 315.6 MB. Free memory was 271.9 MB in the beginning and 269.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 00:03:03,934 INFO L168 Benchmark]: Boogie Preprocessor took 27.86 ms. Allocated memory is still 315.6 MB. Free memory was 269.4 MB in the beginning and 266.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 00:03:03,934 INFO L168 Benchmark]: RCFGBuilder took 468.24 ms. Allocated memory is still 315.6 MB. Free memory was 266.9 MB in the beginning and 241.9 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 14.2 GB. [2020-10-16 00:03:03,935 INFO L168 Benchmark]: TraceAbstraction took 3456.59 ms. Allocated memory was 315.6 MB in the beginning and 371.2 MB in the end (delta: 55.6 MB). Free memory was 241.9 MB in the beginning and 171.3 MB in the end (delta: 70.6 MB). Peak memory consumption was 126.2 MB. Max. memory is 14.2 GB. [2020-10-16 00:03:03,939 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 570.41 ms. Allocated memory was 251.7 MB in the beginning and 315.6 MB in the end (delta: 64.0 MB). Free memory was 207.0 MB in the beginning and 271.9 MB in the end (delta: -64.9 MB). Peak memory consumption was 29.7 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 46.86 ms. Allocated memory is still 315.6 MB. Free memory was 271.9 MB in the beginning and 269.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 27.86 ms. Allocated memory is still 315.6 MB. Free memory was 269.4 MB in the beginning and 266.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 468.24 ms. Allocated memory is still 315.6 MB. Free memory was 266.9 MB in the beginning and 241.9 MB in the end (delta: 25.0 MB). Peak memory consumption was 25.0 MB. Max. memory is 14.2 GB. * TraceAbstraction took 3456.59 ms. Allocated memory was 315.6 MB in the beginning and 371.2 MB in the end (delta: 55.6 MB). Free memory was 241.9 MB in the beginning and 171.3 MB in the end (delta: 70.6 MB). Peak memory consumption was 126.2 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 619 VarBasedMoverChecksPositive, 69 VarBasedMoverChecksNegative, 34 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 162 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.3s, 73 PlacesBefore, 29 PlacesAfterwards, 72 TransitionsBefore, 26 TransitionsAfterwards, 886 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 61 TotalNumberOfCompositions, 3136 MoverChecksTotal - 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. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 3.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 27 SDtfs, 30 SDslu, 4 SDs, 0 SdLazy, 49 SolverSat, 19 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=100occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, 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, 943 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...