/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/concurrent/pthreads/regression/pthreadJoinCorrectThreadId.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 03:38:12,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 03:38:12,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 03:38:13,056 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 03:38:13,056 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 03:38:13,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 03:38:13,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 03:38:13,071 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 03:38:13,073 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 03:38:13,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 03:38:13,077 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 03:38:13,081 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 03:38:13,081 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 03:38:13,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 03:38:13,089 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 03:38:13,091 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 03:38:13,091 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 03:38:13,092 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 03:38:13,094 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 03:38:13,096 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 03:38:13,098 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 03:38:13,099 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 03:38:13,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 03:38:13,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 03:38:13,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 03:38:13,109 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 03:38:13,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 03:38:13,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 03:38:13,111 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 03:38:13,112 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 03:38:13,113 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 03:38:13,114 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 03:38:13,114 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 03:38:13,114 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 03:38:13,115 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 03:38:13,116 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 03:38:13,117 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-29 03:38:13,149 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 03:38:13,149 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 03:38:13,153 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 03:38:13,153 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 03:38:13,153 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 03:38:13,154 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 03:38:13,156 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 03:38:13,156 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 03:38:13,156 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 03:38:13,156 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 03:38:13,157 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 03:38:13,157 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 03:38:13,157 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 03:38:13,157 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 03:38:13,157 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 03:38:13,158 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 03:38:13,158 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 03:38:13,158 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 03:38:13,158 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 03:38:13,159 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 03:38:13,159 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 03:38:13,160 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 03:38:13,160 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 03:38:13,161 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 03:38:13,161 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 03:38:13,161 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 03:38:13,161 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 03:38:13,161 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 03:38:13,162 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 03:38:13,162 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 03:38:13,162 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 03:38:13,581 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 03:38:13,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 03:38:13,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 03:38:13,619 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 03:38:13,620 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 03:38:13,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/regression/pthreadJoinCorrectThreadId.c [2021-04-29 03:38:13,699 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/770683977/c36a2b8da30040de9f216cddbdd1c70a/FLAG9d5af3dfe [2021-04-29 03:38:14,252 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 03:38:14,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/regression/pthreadJoinCorrectThreadId.c [2021-04-29 03:38:14,253 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2021-04-29 03:38:14,292 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/770683977/c36a2b8da30040de9f216cddbdd1c70a/FLAG9d5af3dfe [2021-04-29 03:38:14,645 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/770683977/c36a2b8da30040de9f216cddbdd1c70a [2021-04-29 03:38:14,648 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 03:38:14,685 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 03:38:14,686 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 03:38:14,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 03:38:14,690 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 03:38:14,691 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:38:14" (1/1) ... [2021-04-29 03:38:14,692 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d95b2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:14, skipping insertion in model container [2021-04-29 03:38:14,692 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 03:38:14" (1/1) ... [2021-04-29 03:38:14,700 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 03:38:14,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 03:38:14,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:38:14,859 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 03:38:14,873 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 03:38:14,888 INFO L208 MainTranslator]: Completed translation [2021-04-29 03:38:14,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:14 WrapperNode [2021-04-29 03:38:14,889 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 03:38:14,890 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 03:38:14,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 03:38:14,891 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 03:38:14,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:14" (1/1) ... [2021-04-29 03:38:14,907 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:14" (1/1) ... [2021-04-29 03:38:14,926 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 03:38:14,927 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 03:38:14,927 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 03:38:14,927 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 03:38:14,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:14" (1/1) ... [2021-04-29 03:38:14,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:14" (1/1) ... [2021-04-29 03:38:14,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:14" (1/1) ... [2021-04-29 03:38:14,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:14" (1/1) ... [2021-04-29 03:38:14,946 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:14" (1/1) ... [2021-04-29 03:38:14,948 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:14" (1/1) ... [2021-04-29 03:38:14,952 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:14" (1/1) ... [2021-04-29 03:38:14,954 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 03:38:14,957 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 03:38:14,957 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 03:38:14,957 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 03:38:14,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:14" (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 [2021-04-29 03:38:15,053 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 03:38:15,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread0 [2021-04-29 03:38:15,053 INFO L138 BoogieDeclarations]: Found implementation of procedure thread0 [2021-04-29 03:38:15,053 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-29 03:38:15,054 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-29 03:38:15,054 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 03:38:15,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 03:38:15,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-29 03:38:15,054 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 03:38:15,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 03:38:15,056 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-29 03:38:15,296 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 03:38:15,297 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-04-29 03:38:15,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:38:15 BoogieIcfgContainer [2021-04-29 03:38:15,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 03:38:15,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 03:38:15,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 03:38:15,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 03:38:15,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 03:38:14" (1/3) ... [2021-04-29 03:38:15,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cad9d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:38:15, skipping insertion in model container [2021-04-29 03:38:15,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 03:38:14" (2/3) ... [2021-04-29 03:38:15,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cad9d5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 03:38:15, skipping insertion in model container [2021-04-29 03:38:15,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 03:38:15" (3/3) ... [2021-04-29 03:38:15,324 INFO L111 eAbstractionObserver]: Analyzing ICFG pthreadJoinCorrectThreadId.c [2021-04-29 03:38:15,340 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 03:38:15,352 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-04-29 03:38:15,353 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 03:38:15,415 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,415 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,416 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,416 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,416 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,416 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,416 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,417 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,417 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,417 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,418 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,418 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,420 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,420 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,420 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,420 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,421 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,421 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,421 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,421 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,422 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,428 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,428 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,429 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,429 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,430 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,430 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,430 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,430 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,431 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,431 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,431 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,431 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,432 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,432 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,432 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,436 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,437 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,437 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,437 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,437 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,437 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,438 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,438 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,441 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,442 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,445 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,446 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,446 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,447 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,454 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#t~nondet0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#t~mem1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,455 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_~#t1~0.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,456 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,456 WARN L313 ript$VariableManager]: TermVariabe |thread0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,457 WARN L313 ript$VariableManager]: TermVariabe thread0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,466 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,466 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,466 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,466 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 03:38:15,491 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-04-29 03:38:15,518 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-04-29 03:38:15,545 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 03:38:15,545 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 03:38:15,545 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 03:38:15,546 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 03:38:15,546 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 03:38:15,546 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 03:38:15,546 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 03:38:15,546 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 03:38:15,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 53 places, 50 transitions, 128 flow [2021-04-29 03:38:15,642 INFO L129 PetriNetUnfolder]: 4/51 cut-off events. [2021-04-29 03:38:15,643 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 03:38:15,648 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63 conditions, 51 events. 4/51 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 37 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 37. Up to 5 conditions per place. [2021-04-29 03:38:15,650 INFO L82 GeneralOperation]: Start removeDead. Operand has 53 places, 50 transitions, 128 flow [2021-04-29 03:38:15,666 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 38 places, 34 transitions, 89 flow [2021-04-29 03:38:15,668 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:38:15,699 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 38 places, 34 transitions, 89 flow [2021-04-29 03:38:15,708 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 38 places, 34 transitions, 89 flow [2021-04-29 03:38:15,714 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 34 transitions, 89 flow [2021-04-29 03:38:15,743 INFO L129 PetriNetUnfolder]: 2/37 cut-off events. [2021-04-29 03:38:15,744 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 03:38:15,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 37 events. 2/37 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 15 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 30. Up to 5 conditions per place. [2021-04-29 03:38:15,747 INFO L146 LiptonReduction]: Number of co-enabled transitions 100 [2021-04-29 03:38:17,028 INFO L158 LiptonReduction]: Checked pairs total: 65 [2021-04-29 03:38:17,028 INFO L160 LiptonReduction]: Total number of compositions: 35 [2021-04-29 03:38:17,031 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1365 [2021-04-29 03:38:17,046 INFO L129 PetriNetUnfolder]: 2/35 cut-off events. [2021-04-29 03:38:17,047 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-04-29 03:38:17,047 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:38:17,048 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:38:17,048 INFO L428 AbstractCegarLoop]: === Iteration 1 === [thread0Thread1of1ForFork1Err0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:38:17,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:38:17,054 INFO L82 PathProgramCache]: Analyzing trace with hash 2131267928, now seen corresponding path program 1 times [2021-04-29 03:38:17,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:38:17,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107422231] [2021-04-29 03:38:17,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:38:17,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:38:17,242 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:38:17,252 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:38:17,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 03:38:17,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:38:17,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:38:17,279 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107422231] [2021-04-29 03:38:17,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:38:17,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-29 03:38:17,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963650673] [2021-04-29 03:38:17,290 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-29 03:38:17,291 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:38:17,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-29 03:38:17,309 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-04-29 03:38:17,315 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 88 [2021-04-29 03:38:17,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 56.2) internal successors, (281), 5 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:17,321 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:38:17,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 88 [2021-04-29 03:38:17,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:38:17,443 INFO L129 PetriNetUnfolder]: 15/86 cut-off events. [2021-04-29 03:38:17,443 INFO L130 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2021-04-29 03:38:17,444 INFO L84 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 86 events. 15/86 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 343 event pairs, 7 based on Foata normal form. 2/44 useless extension candidates. Maximal degree in co-relation 115. Up to 37 conditions per place. [2021-04-29 03:38:17,447 INFO L132 encePairwiseOnDemand]: 79/88 looper letters, 13 selfloop transitions, 6 changer transitions 16/47 dead transitions. [2021-04-29 03:38:17,447 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 47 transitions, 177 flow [2021-04-29 03:38:17,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-29 03:38:17,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-29 03:38:17,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 357 transitions. [2021-04-29 03:38:17,472 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6761363636363636 [2021-04-29 03:38:17,473 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 357 transitions. [2021-04-29 03:38:17,474 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 357 transitions. [2021-04-29 03:38:17,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:38:17,481 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 357 transitions. [2021-04-29 03:38:17,488 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:17,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:17,501 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 88.0) internal successors, (616), 7 states have internal predecessors, (616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:17,503 INFO L185 Difference]: Start difference. First operand has 41 places, 37 transitions, 95 flow. Second operand 6 states and 357 transitions. [2021-04-29 03:38:17,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 47 transitions, 177 flow [2021-04-29 03:38:17,507 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 47 transitions, 155 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-29 03:38:17,519 INFO L241 Difference]: Finished difference. Result has 45 places, 27 transitions, 91 flow [2021-04-29 03:38:17,522 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=91, PETRI_PLACES=45, PETRI_TRANSITIONS=27} [2021-04-29 03:38:17,523 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, 4 predicate places. [2021-04-29 03:38:17,523 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:38:17,523 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 27 transitions, 91 flow [2021-04-29 03:38:17,524 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 45 places, 27 transitions, 91 flow [2021-04-29 03:38:17,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 31 places, 27 transitions, 91 flow [2021-04-29 03:38:17,538 INFO L129 PetriNetUnfolder]: 4/42 cut-off events. [2021-04-29 03:38:17,538 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-04-29 03:38:17,539 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66 conditions, 42 events. 4/42 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 120 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 32. Up to 6 conditions per place. [2021-04-29 03:38:17,540 INFO L146 LiptonReduction]: Number of co-enabled transitions 82 [2021-04-29 03:38:17,544 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:38:17,544 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:38:17,544 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 21 [2021-04-29 03:38:17,548 INFO L480 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 91 flow [2021-04-29 03:38:17,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 56.2) internal successors, (281), 5 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:17,549 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:38:17,549 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:38:17,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 03:38:17,549 INFO L428 AbstractCegarLoop]: === Iteration 2 === [thread0Thread1of1ForFork1Err0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:38:17,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:38:17,551 INFO L82 PathProgramCache]: Analyzing trace with hash -1664998028, now seen corresponding path program 2 times [2021-04-29 03:38:17,551 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:38:17,551 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594433787] [2021-04-29 03:38:17,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:38:17,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:38:17,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 03:38:17,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:38:17,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 03:38:17,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 03:38:17,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:38:17,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:38:17,697 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594433787] [2021-04-29 03:38:17,697 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:38:17,697 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 03:38:17,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762346866] [2021-04-29 03:38:17,699 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 03:38:17,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:38:17,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 03:38:17,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-29 03:38:17,702 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 88 [2021-04-29 03:38:17,702 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 91 flow. Second operand has 6 states, 6 states have (on average 41.0) internal successors, (246), 6 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:17,702 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:38:17,703 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 88 [2021-04-29 03:38:17,703 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:38:17,856 INFO L129 PetriNetUnfolder]: 15/75 cut-off events. [2021-04-29 03:38:17,856 INFO L130 PetriNetUnfolder]: For 22/23 co-relation queries the response was YES. [2021-04-29 03:38:17,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 75 events. 15/75 cut-off events. For 22/23 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 327 event pairs, 1 based on Foata normal form. 3/52 useless extension candidates. Maximal degree in co-relation 112. Up to 14 conditions per place. [2021-04-29 03:38:17,858 INFO L132 encePairwiseOnDemand]: 79/88 looper letters, 16 selfloop transitions, 13 changer transitions 9/44 dead transitions. [2021-04-29 03:38:17,858 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 44 transitions, 209 flow [2021-04-29 03:38:17,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-04-29 03:38:17,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2021-04-29 03:38:17,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 354 transitions. [2021-04-29 03:38:17,862 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5028409090909091 [2021-04-29 03:38:17,862 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 354 transitions. [2021-04-29 03:38:17,862 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 354 transitions. [2021-04-29 03:38:17,863 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:38:17,863 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 354 transitions. [2021-04-29 03:38:17,864 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 44.25) internal successors, (354), 8 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:17,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:17,868 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 88.0) internal successors, (792), 9 states have internal predecessors, (792), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:17,868 INFO L185 Difference]: Start difference. First operand has 31 places, 27 transitions, 91 flow. Second operand 8 states and 354 transitions. [2021-04-29 03:38:17,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 44 transitions, 209 flow [2021-04-29 03:38:17,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 44 transitions, 206 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-29 03:38:17,872 INFO L241 Difference]: Finished difference. Result has 39 places, 28 transitions, 140 flow [2021-04-29 03:38:17,873 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=140, PETRI_PLACES=39, PETRI_TRANSITIONS=28} [2021-04-29 03:38:17,873 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, -2 predicate places. [2021-04-29 03:38:17,873 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:38:17,874 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 28 transitions, 140 flow [2021-04-29 03:38:17,874 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 28 transitions, 140 flow [2021-04-29 03:38:17,875 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 34 places, 28 transitions, 140 flow [2021-04-29 03:38:17,882 INFO L129 PetriNetUnfolder]: 7/46 cut-off events. [2021-04-29 03:38:17,882 INFO L130 PetriNetUnfolder]: For 24/24 co-relation queries the response was YES. [2021-04-29 03:38:17,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 46 events. 7/46 cut-off events. For 24/24 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 159 event pairs, 0 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 56. Up to 7 conditions per place. [2021-04-29 03:38:17,884 INFO L146 LiptonReduction]: Number of co-enabled transitions 58 [2021-04-29 03:38:17,887 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:38:17,887 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:38:17,887 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 14 [2021-04-29 03:38:17,889 INFO L480 AbstractCegarLoop]: Abstraction has has 34 places, 28 transitions, 140 flow [2021-04-29 03:38:17,890 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 41.0) internal successors, (246), 6 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:17,890 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:38:17,890 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:38:17,890 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 03:38:17,891 INFO L428 AbstractCegarLoop]: === Iteration 3 === [thread0Thread1of1ForFork1Err0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:38:17,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:38:17,895 INFO L82 PathProgramCache]: Analyzing trace with hash -1676357048, now seen corresponding path program 3 times [2021-04-29 03:38:17,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:38:17,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580759655] [2021-04-29 03:38:17,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:38:17,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:38:17,961 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-29 03:38:17,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-29 03:38:17,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-29 03:38:17,979 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-04-29 03:38:17,985 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:17,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:38:17,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:38:17,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580759655] [2021-04-29 03:38:17,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:38:17,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-29 03:38:17,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513533020] [2021-04-29 03:38:17,988 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-29 03:38:17,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:38:17,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-29 03:38:17,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-04-29 03:38:17,990 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 88 [2021-04-29 03:38:17,990 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 28 transitions, 140 flow. Second operand has 6 states, 6 states have (on average 41.0) internal successors, (246), 6 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:17,990 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:38:17,991 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 88 [2021-04-29 03:38:17,991 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:38:18,077 INFO L129 PetriNetUnfolder]: 9/48 cut-off events. [2021-04-29 03:38:18,077 INFO L130 PetriNetUnfolder]: For 44/44 co-relation queries the response was YES. [2021-04-29 03:38:18,077 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133 conditions, 48 events. 9/48 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 149 event pairs, 0 based on Foata normal form. 2/40 useless extension candidates. Maximal degree in co-relation 90. Up to 12 conditions per place. [2021-04-29 03:38:18,078 INFO L132 encePairwiseOnDemand]: 81/88 looper letters, 14 selfloop transitions, 10 changer transitions 1/30 dead transitions. [2021-04-29 03:38:18,078 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 30 transitions, 185 flow [2021-04-29 03:38:18,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-29 03:38:18,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-29 03:38:18,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 300 transitions. [2021-04-29 03:38:18,080 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.487012987012987 [2021-04-29 03:38:18,080 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 300 transitions. [2021-04-29 03:38:18,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 300 transitions. [2021-04-29 03:38:18,081 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:38:18,081 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 300 transitions. [2021-04-29 03:38:18,082 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 42.857142857142854) internal successors, (300), 7 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:18,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 88.0) internal successors, (704), 8 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:18,085 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 88.0) internal successors, (704), 8 states have internal predecessors, (704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:18,085 INFO L185 Difference]: Start difference. First operand has 34 places, 28 transitions, 140 flow. Second operand 7 states and 300 transitions. [2021-04-29 03:38:18,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 30 transitions, 185 flow [2021-04-29 03:38:18,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 30 transitions, 175 flow, removed 3 selfloop flow, removed 2 redundant places. [2021-04-29 03:38:18,088 INFO L241 Difference]: Finished difference. Result has 39 places, 25 transitions, 142 flow [2021-04-29 03:38:18,088 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=142, PETRI_PLACES=39, PETRI_TRANSITIONS=25} [2021-04-29 03:38:18,088 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, -2 predicate places. [2021-04-29 03:38:18,088 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:38:18,088 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 39 places, 25 transitions, 142 flow [2021-04-29 03:38:18,089 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 39 places, 25 transitions, 142 flow [2021-04-29 03:38:18,089 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 38 places, 25 transitions, 142 flow [2021-04-29 03:38:18,095 INFO L129 PetriNetUnfolder]: 6/40 cut-off events. [2021-04-29 03:38:18,095 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2021-04-29 03:38:18,096 INFO L84 FinitePrefix]: Finished finitePrefix Result has 97 conditions, 40 events. 6/40 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 122 event pairs, 0 based on Foata normal form. 0/31 useless extension candidates. Maximal degree in co-relation 66. Up to 6 conditions per place. [2021-04-29 03:38:18,096 INFO L146 LiptonReduction]: Number of co-enabled transitions 36 [2021-04-29 03:38:18,099 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:38:18,099 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:38:18,099 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 11 [2021-04-29 03:38:18,100 INFO L480 AbstractCegarLoop]: Abstraction has has 38 places, 25 transitions, 142 flow [2021-04-29 03:38:18,101 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 41.0) internal successors, (246), 6 states have internal predecessors, (246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:18,101 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 03:38:18,101 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-29 03:38:18,101 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 03:38:18,101 INFO L428 AbstractCegarLoop]: === Iteration 4 === [thread0Thread1of1ForFork1Err0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread0Err2INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-04-29 03:38:18,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 03:38:18,102 INFO L82 PathProgramCache]: Analyzing trace with hash 1445204988, now seen corresponding path program 1 times [2021-04-29 03:38:18,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 03:38:18,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [248552158] [2021-04-29 03:38:18,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 03:38:18,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 03:38:18,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:18,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 03:38:18,127 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 03:38:18,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 03:38:18,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-29 03:38:18,131 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [248552158] [2021-04-29 03:38:18,131 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 03:38:18,131 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 03:38:18,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926847979] [2021-04-29 03:38:18,132 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 03:38:18,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 03:38:18,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 03:38:18,132 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 03:38:18,133 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 88 [2021-04-29 03:38:18,134 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 25 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:18,134 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 03:38:18,134 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 88 [2021-04-29 03:38:18,134 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 03:38:18,141 INFO L129 PetriNetUnfolder]: 4/37 cut-off events. [2021-04-29 03:38:18,142 INFO L130 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2021-04-29 03:38:18,142 INFO L84 FinitePrefix]: Finished finitePrefix Result has 94 conditions, 37 events. 4/37 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 105 event pairs, 0 based on Foata normal form. 3/31 useless extension candidates. Maximal degree in co-relation 67. Up to 6 conditions per place. [2021-04-29 03:38:18,142 INFO L132 encePairwiseOnDemand]: 86/88 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2021-04-29 03:38:18,142 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 22 transitions, 132 flow [2021-04-29 03:38:18,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 03:38:18,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 03:38:18,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2021-04-29 03:38:18,144 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7272727272727273 [2021-04-29 03:38:18,144 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 192 transitions. [2021-04-29 03:38:18,144 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 192 transitions. [2021-04-29 03:38:18,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 03:38:18,145 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 192 transitions. [2021-04-29 03:38:18,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:18,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:18,147 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 88.0) internal successors, (352), 4 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:18,147 INFO L185 Difference]: Start difference. First operand has 38 places, 25 transitions, 142 flow. Second operand 3 states and 192 transitions. [2021-04-29 03:38:18,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 22 transitions, 132 flow [2021-04-29 03:38:18,149 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 22 transitions, 121 flow, removed 1 selfloop flow, removed 4 redundant places. [2021-04-29 03:38:18,149 INFO L241 Difference]: Finished difference. Result has 35 places, 0 transitions, 0 flow [2021-04-29 03:38:18,149 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=88, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=35, PETRI_TRANSITIONS=0} [2021-04-29 03:38:18,150 INFO L343 CegarLoopForPetriNet]: 41 programPoint places, -6 predicate places. [2021-04-29 03:38:18,150 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 03:38:18,150 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 35 places, 0 transitions, 0 flow [2021-04-29 03:38:18,150 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 35 places, 0 transitions, 0 flow [2021-04-29 03:38:18,150 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2021-04-29 03:38:18,151 INFO L129 PetriNetUnfolder]: 0/0 cut-off events. [2021-04-29 03:38:18,151 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 03:38:18,151 INFO L84 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2021-04-29 03:38:18,151 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 03:38:18,151 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 03:38:18,151 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 03:38:18,151 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 1 [2021-04-29 03:38:18,153 INFO L480 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2021-04-29 03:38:18,153 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 64.0) internal successors, (192), 3 states have internal predecessors, (192), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-29 03:38:18,153 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 03:38:18,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 03:38:18 BasicIcfg [2021-04-29 03:38:18,157 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 03:38:18,159 INFO L168 Benchmark]: Toolchain (without parser) took 3508.89 ms. Allocated memory was 306.2 MB in the beginning and 369.1 MB in the end (delta: 62.9 MB). Free memory was 279.9 MB in the beginning and 257.6 MB in the end (delta: 22.3 MB). Peak memory consumption was 86.6 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:18,159 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 306.2 MB. Free memory is still 291.1 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:38:18,160 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.16 ms. Allocated memory is still 306.2 MB. Free memory was 276.8 MB in the beginning and 267.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:18,161 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.78 ms. Allocated memory is still 306.2 MB. Free memory was 267.8 MB in the beginning and 266.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:18,161 INFO L168 Benchmark]: Boogie Preprocessor took 27.36 ms. Allocated memory is still 306.2 MB. Free memory was 266.5 MB in the beginning and 265.5 MB in the end (delta: 995.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 03:38:18,162 INFO L168 Benchmark]: RCFGBuilder took 345.68 ms. Allocated memory is still 306.2 MB. Free memory was 265.3 MB in the beginning and 283.6 MB in the end (delta: -18.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:18,162 INFO L168 Benchmark]: TraceAbstraction took 2853.33 ms. Allocated memory was 306.2 MB in the beginning and 369.1 MB in the end (delta: 62.9 MB). Free memory was 282.7 MB in the beginning and 257.6 MB in the end (delta: 25.1 MB). Peak memory consumption was 87.7 MB. Max. memory is 16.0 GB. [2021-04-29 03:38:18,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 306.2 MB. Free memory is still 291.1 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 203.16 ms. Allocated memory is still 306.2 MB. Free memory was 276.8 MB in the beginning and 267.8 MB in the end (delta: 9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 35.78 ms. Allocated memory is still 306.2 MB. Free memory was 267.8 MB in the beginning and 266.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 27.36 ms. Allocated memory is still 306.2 MB. Free memory was 266.5 MB in the beginning and 265.5 MB in the end (delta: 995.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 345.68 ms. Allocated memory is still 306.2 MB. Free memory was 265.3 MB in the beginning and 283.6 MB in the end (delta: -18.2 MB). Peak memory consumption was 15.6 MB. Max. memory is 16.0 GB. * TraceAbstraction took 2853.33 ms. Allocated memory was 306.2 MB in the beginning and 369.1 MB in the end (delta: 62.9 MB). Free memory was 282.7 MB in the beginning and 257.6 MB in the end (delta: 25.1 MB). Peak memory consumption was 87.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1320.1ms, 38 PlacesBefore, 41 PlacesAfterwards, 34 TransitionsBefore, 37 TransitionsAfterwards, 100 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 35 TotalNumberOfCompositions, 65 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 65, positive: 65, positive conditional: 65, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 53, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 53, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 53, positive: 53, positive conditional: 0, positive unconditional: 53, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 65, positive: 12, positive conditional: 12, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 53, unknown conditional: 53, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 53, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 20.3ms, 45 PlacesBefore, 31 PlacesAfterwards, 27 TransitionsBefore, 27 TransitionsAfterwards, 82 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 53, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 12.7ms, 39 PlacesBefore, 34 PlacesAfterwards, 28 TransitionsBefore, 28 TransitionsAfterwards, 58 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 53, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 10.2ms, 39 PlacesBefore, 38 PlacesAfterwards, 25 TransitionsBefore, 25 TransitionsAfterwards, 36 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 53, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1ms, 35 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 53, Positive cache size: 53, Positive conditional cache size: 53, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 35]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 40 locations, 1 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 8.2ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 2614.0ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 509.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1489.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 31 SDtfs, 65 SDslu, 24 SDs, 0 SdLazy, 133 SolverSat, 23 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 125.7ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 145.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=142occurred in iteration=3, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.3ms SsaConstructionTime, 93.3ms SatisfiabilityAnalysisTime, 261.5ms InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 31 ConstructedInterpolants, 0 QuantifiedInterpolants, 142 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...