/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/svcomp/ldv-races/race-1_3-join.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-29 01:08:27,555 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-29 01:08:27,560 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-29 01:08:27,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-29 01:08:27,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-29 01:08:27,628 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-29 01:08:27,632 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-29 01:08:27,641 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-29 01:08:27,644 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-29 01:08:27,650 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-29 01:08:27,651 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-29 01:08:27,653 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-29 01:08:27,654 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-29 01:08:27,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-29 01:08:27,659 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-29 01:08:27,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-29 01:08:27,665 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-29 01:08:27,666 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-29 01:08:27,674 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-29 01:08:27,682 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-29 01:08:27,684 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-29 01:08:27,687 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-29 01:08:27,688 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-29 01:08:27,691 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-29 01:08:27,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-29 01:08:27,705 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-29 01:08:27,706 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-29 01:08:27,708 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-29 01:08:27,709 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-29 01:08:27,710 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-29 01:08:27,710 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-29 01:08:27,711 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-29 01:08:27,711 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-29 01:08:27,712 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-29 01:08:27,713 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-29 01:08:27,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-29 01:08:27,718 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 01:08:27,772 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-29 01:08:27,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-29 01:08:27,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-29 01:08:27,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-29 01:08:27,777 INFO L138 SettingsManager]: * Use SBE=true [2021-04-29 01:08:27,777 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-29 01:08:27,777 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-29 01:08:27,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-29 01:08:27,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-29 01:08:27,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-29 01:08:27,780 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-29 01:08:27,780 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-29 01:08:27,780 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-29 01:08:27,780 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-29 01:08:27,781 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-29 01:08:27,781 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-29 01:08:27,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-29 01:08:27,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-29 01:08:27,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-29 01:08:27,782 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-29 01:08:27,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-29 01:08:27,783 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-29 01:08:27,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-29 01:08:27,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-29 01:08:27,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-29 01:08:27,783 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-29 01:08:27,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-29 01:08:27,784 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-29 01:08:27,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-29 01:08:27,784 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-29 01:08:27,785 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-29 01:08:28,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-29 01:08:28,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-29 01:08:28,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-29 01:08:28,294 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-29 01:08:28,295 INFO L275 PluginConnector]: CDTParser initialized [2021-04-29 01:08:28,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-04-29 01:08:28,379 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3544a0b74/3c897e00fa1047fea5830c200339cb88/FLAG005f1227a [2021-04-29 01:08:29,162 INFO L306 CDTParser]: Found 1 translation units. [2021-04-29 01:08:29,163 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i [2021-04-29 01:08:29,206 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3544a0b74/3c897e00fa1047fea5830c200339cb88/FLAG005f1227a [2021-04-29 01:08:29,361 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3544a0b74/3c897e00fa1047fea5830c200339cb88 [2021-04-29 01:08:29,367 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-29 01:08:29,478 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-29 01:08:29,480 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-29 01:08:29,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-29 01:08:29,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-29 01:08:29,486 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 01:08:29" (1/1) ... [2021-04-29 01:08:29,488 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e4d6353 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:08:29, skipping insertion in model container [2021-04-29 01:08:29,489 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.04 01:08:29" (1/1) ... [2021-04-29 01:08:29,500 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-29 01:08:29,563 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-29 01:08:30,456 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-04-29 01:08:30,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 01:08:30,492 INFO L203 MainTranslator]: Completed pre-run [2021-04-29 01:08:30,542 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_3-join.i[76153,76166] [2021-04-29 01:08:30,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-29 01:08:31,003 INFO L208 MainTranslator]: Completed translation [2021-04-29 01:08:31,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:08:31 WrapperNode [2021-04-29 01:08:31,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-29 01:08:31,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-29 01:08:31,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-29 01:08:31,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-29 01:08:31,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:08:31" (1/1) ... [2021-04-29 01:08:31,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:08:31" (1/1) ... [2021-04-29 01:08:31,079 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-29 01:08:31,080 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-29 01:08:31,081 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-29 01:08:31,081 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-29 01:08:31,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:08:31" (1/1) ... [2021-04-29 01:08:31,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:08:31" (1/1) ... [2021-04-29 01:08:31,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:08:31" (1/1) ... [2021-04-29 01:08:31,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:08:31" (1/1) ... [2021-04-29 01:08:31,113 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:08:31" (1/1) ... [2021-04-29 01:08:31,116 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:08:31" (1/1) ... [2021-04-29 01:08:31,122 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:08:31" (1/1) ... [2021-04-29 01:08:31,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-29 01:08:31,130 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-29 01:08:31,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-29 01:08:31,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-29 01:08:31,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:08:31" (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 01:08:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-29 01:08:31,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-29 01:08:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-29 01:08:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-04-29 01:08:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-04-29 01:08:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-04-29 01:08:31,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-29 01:08:31,257 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-29 01:08:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-29 01:08:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-04-29 01:08:31,258 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-04-29 01:08:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-29 01:08:31,258 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-29 01:08:31,261 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 01:08:31,915 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-29 01:08:31,915 INFO L299 CfgBuilder]: Removed 16 assume(true) statements. [2021-04-29 01:08:31,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 01:08:31 BoogieIcfgContainer [2021-04-29 01:08:31,918 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-29 01:08:31,923 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-29 01:08:31,923 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-29 01:08:31,929 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-29 01:08:31,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.04 01:08:29" (1/3) ... [2021-04-29 01:08:31,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5134d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 01:08:31, skipping insertion in model container [2021-04-29 01:08:31,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.04 01:08:31" (2/3) ... [2021-04-29 01:08:31,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c5134d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.04 01:08:31, skipping insertion in model container [2021-04-29 01:08:31,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.04 01:08:31" (3/3) ... [2021-04-29 01:08:31,934 INFO L111 eAbstractionObserver]: Analyzing ICFG race-1_3-join.i [2021-04-29 01:08:31,942 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-29 01:08:31,947 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-04-29 01:08:31,948 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-29 01:08:31,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,979 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,979 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,979 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,980 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,980 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,980 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,981 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,982 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,982 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,982 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,982 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,985 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,985 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,985 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,986 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,986 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-29 01:08:31,991 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-04-29 01:08:32,017 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-04-29 01:08:32,046 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-29 01:08:32,047 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-29 01:08:32,047 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-29 01:08:32,047 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-29 01:08:32,047 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-29 01:08:32,047 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-29 01:08:32,047 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-29 01:08:32,048 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-29 01:08:32,063 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 87 transitions, 182 flow [2021-04-29 01:08:32,123 INFO L129 PetriNetUnfolder]: 4/101 cut-off events. [2021-04-29 01:08:32,124 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 01:08:32,135 INFO L84 FinitePrefix]: Finished finitePrefix Result has 106 conditions, 101 events. 4/101 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 150 event pairs, 0 based on Foata normal form. 0/90 useless extension candidates. Maximal degree in co-relation 61. Up to 3 conditions per place. [2021-04-29 01:08:32,135 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 87 transitions, 182 flow [2021-04-29 01:08:32,151 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 76 transitions, 158 flow [2021-04-29 01:08:32,153 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:08:32,173 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 76 transitions, 158 flow [2021-04-29 01:08:32,180 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 76 transitions, 158 flow [2021-04-29 01:08:32,186 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 76 transitions, 158 flow [2021-04-29 01:08:32,225 INFO L129 PetriNetUnfolder]: 2/86 cut-off events. [2021-04-29 01:08:32,226 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 01:08:32,226 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 86 events. 2/86 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 94 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 56. Up to 2 conditions per place. [2021-04-29 01:08:32,231 INFO L146 LiptonReduction]: Number of co-enabled transitions 168 [2021-04-29 01:08:34,792 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-04-29 01:08:34,982 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2021-04-29 01:08:35,165 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-04-29 01:08:35,339 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2021-04-29 01:08:35,588 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-04-29 01:08:35,850 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-04-29 01:08:38,174 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-29 01:08:38,657 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-29 01:08:38,760 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-29 01:08:38,862 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-29 01:08:39,762 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:39,866 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:39,969 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:40,073 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:42,935 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:43,042 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:43,148 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:43,253 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:43,379 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:08:43,499 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 01:08:43,624 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:08:43,742 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 01:08:43,865 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-29 01:08:43,978 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-29 01:08:44,089 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-29 01:08:44,198 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-29 01:08:44,303 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:44,409 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:44,512 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:44,615 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:44,734 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:44,840 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:44,951 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:45,060 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:45,166 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:45,269 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:45,391 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:45,507 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:45,616 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-29 01:08:45,728 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-29 01:08:45,836 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-29 01:08:45,948 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-29 01:08:46,075 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:08:46,197 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 01:08:46,331 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:08:46,456 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-29 01:08:46,568 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:46,674 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:46,781 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:46,889 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:47,016 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:47,130 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:47,248 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:47,365 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:47,486 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:08:47,597 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:08:47,714 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:08:47,823 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:08:47,934 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-29 01:08:48,039 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:08:48,157 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2021-04-29 01:08:48,260 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2021-04-29 01:08:48,373 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:08:48,483 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:08:48,605 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2021-04-29 01:08:48,730 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 69 [2021-04-29 01:08:48,859 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:48,974 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-29 01:08:49,106 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:49,226 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-29 01:08:49,334 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-29 01:08:49,527 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2021-04-29 01:08:49,724 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 01:08:49,920 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-29 01:08:50,037 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-29 01:08:50,160 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-29 01:08:50,279 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:50,407 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-29 01:08:50,518 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-29 01:08:51,104 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:51,228 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:51,366 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:51,497 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:51,633 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:51,756 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:51,897 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:52,028 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:52,182 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:08:52,337 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:08:52,510 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:08:52,657 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:08:52,813 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:52,950 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:53,093 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:53,230 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:53,369 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-29 01:08:53,501 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:08:53,645 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-29 01:08:53,783 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:08:53,927 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:54,053 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:54,183 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:54,310 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:54,446 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-29 01:08:54,586 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:08:54,734 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-29 01:08:54,876 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-29 01:08:55,018 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:55,151 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:55,290 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:55,423 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:55,571 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:55,700 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:55,863 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:55,994 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:56,137 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:56,270 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:56,412 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-29 01:08:56,546 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-29 01:08:56,697 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:08:56,851 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:08:57,001 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:08:57,146 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-04-29 01:08:57,551 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 103 [2021-04-29 01:08:57,711 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-29 01:08:58,105 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 109 [2021-04-29 01:08:58,288 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-04-29 01:08:58,629 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-04-29 01:08:58,792 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-04-29 01:08:59,137 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2021-04-29 01:08:59,309 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-29 01:08:59,704 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 108 [2021-04-29 01:08:59,879 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:09:00,320 WARN L205 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 112 [2021-04-29 01:09:00,525 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2021-04-29 01:09:00,842 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2021-04-29 01:09:00,993 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:09:01,361 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2021-04-29 01:09:01,563 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-29 01:09:01,913 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:09:02,091 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:09:02,461 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2021-04-29 01:09:02,649 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 01:09:02,991 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2021-04-29 01:09:03,153 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:09:03,504 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2021-04-29 01:09:03,669 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-29 01:09:04,011 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2021-04-29 01:09:04,162 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:09:04,549 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:09:04,715 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-29 01:09:05,049 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2021-04-29 01:09:05,217 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-29 01:09:05,585 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2021-04-29 01:09:05,765 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:09:05,910 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:09:06,062 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:09:06,226 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:09:06,381 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:09:06,785 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2021-04-29 01:09:06,961 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 01:09:07,411 WARN L205 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 114 [2021-04-29 01:09:07,619 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2021-04-29 01:09:08,009 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-04-29 01:09:08,174 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-29 01:09:08,572 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2021-04-29 01:09:08,763 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 01:09:09,092 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 95 [2021-04-29 01:09:09,246 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2021-04-29 01:09:09,603 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99 [2021-04-29 01:09:09,774 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-29 01:09:10,123 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2021-04-29 01:09:10,327 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-29 01:09:10,695 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2021-04-29 01:09:10,871 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:09:11,210 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2021-04-29 01:09:11,381 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:09:11,760 WARN L205 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2021-04-29 01:09:11,943 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-29 01:09:12,310 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 101 [2021-04-29 01:09:12,492 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-29 01:09:12,883 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 104 [2021-04-29 01:09:13,058 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-29 01:09:13,561 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 121 [2021-04-29 01:09:13,800 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 121 [2021-04-29 01:09:14,332 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 126 [2021-04-29 01:09:14,607 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 126 [2021-04-29 01:09:14,966 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2021-04-29 01:09:15,146 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 103 [2021-04-29 01:09:15,578 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 106 [2021-04-29 01:09:15,793 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2021-04-29 01:09:16,148 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 103 [2021-04-29 01:09:16,316 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2021-04-29 01:09:16,717 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2021-04-29 01:09:16,893 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2021-04-29 01:09:17,273 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 101 [2021-04-29 01:09:17,461 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2021-04-29 01:09:17,862 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 104 [2021-04-29 01:09:18,058 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-29 01:09:18,400 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2021-04-29 01:09:18,570 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-04-29 01:09:18,954 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96 [2021-04-29 01:09:19,134 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-29 01:09:19,187 INFO L158 LiptonReduction]: Checked pairs total: 414 [2021-04-29 01:09:19,188 INFO L160 LiptonReduction]: Total number of compositions: 207 [2021-04-29 01:09:19,195 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 47043 [2021-04-29 01:09:19,210 INFO L129 PetriNetUnfolder]: 0/10 cut-off events. [2021-04-29 01:09:19,210 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 01:09:19,210 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:09:19,211 INFO L263 CegarLoopForPetriNet]: trace histogram [1] [2021-04-29 01:09:19,211 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:09:19,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:09:19,220 INFO L82 PathProgramCache]: Analyzing trace with hash 463, now seen corresponding path program 1 times [2021-04-29 01:09:19,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:09:19,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699043153] [2021-04-29 01:09:19,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:09:19,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:09:19,513 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 01:09:19,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [699043153] [2021-04-29 01:09:19,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:09:19,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2021-04-29 01:09:19,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832817779] [2021-04-29 01:09:19,531 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-04-29 01:09:19,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:09:19,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-04-29 01:09:19,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-04-29 01:09:19,555 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 266 out of 294 [2021-04-29 01:09:19,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 90 transitions, 186 flow. Second operand has 2 states, 2 states have (on average 266.5) internal successors, (533), 2 states have internal predecessors, (533), 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 01:09:19,560 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:09:19,560 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 266 of 294 [2021-04-29 01:09:19,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:09:19,587 INFO L129 PetriNetUnfolder]: 0/92 cut-off events. [2021-04-29 01:09:19,587 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 01:09:19,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 92 events. 0/92 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 648 event pairs, 0 based on Foata normal form. 2/12 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 01:09:19,589 INFO L132 encePairwiseOnDemand]: 286/294 looper letters, 0 selfloop transitions, 0 changer transitions 69/82 dead transitions. [2021-04-29 01:09:19,589 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 82 transitions, 170 flow [2021-04-29 01:09:19,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-04-29 01:09:19,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2021-04-29 01:09:19,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 540 transitions. [2021-04-29 01:09:19,609 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.9183673469387755 [2021-04-29 01:09:19,611 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 540 transitions. [2021-04-29 01:09:19,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 540 transitions. [2021-04-29 01:09:19,615 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:09:19,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 540 transitions. [2021-04-29 01:09:19,623 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 270.0) internal successors, (540), 2 states have internal predecessors, (540), 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 01:09:19,632 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 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 01:09:19,633 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 294.0) internal successors, (882), 3 states have internal predecessors, (882), 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 01:09:19,635 INFO L185 Difference]: Start difference. First operand has 92 places, 90 transitions, 186 flow. Second operand 2 states and 540 transitions. [2021-04-29 01:09:19,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 82 transitions, 170 flow [2021-04-29 01:09:19,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 82 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-29 01:09:19,642 INFO L241 Difference]: Finished difference. Result has 83 places, 13 transitions, 27 flow [2021-04-29 01:09:19,644 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=294, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=27, PETRI_PLACES=83, PETRI_TRANSITIONS=13} [2021-04-29 01:09:19,645 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -9 predicate places. [2021-04-29 01:09:19,645 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:09:19,645 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 13 transitions, 27 flow [2021-04-29 01:09:19,646 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 13 transitions, 27 flow [2021-04-29 01:09:19,646 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 14 places, 13 transitions, 27 flow [2021-04-29 01:09:19,649 INFO L129 PetriNetUnfolder]: 0/15 cut-off events. [2021-04-29 01:09:19,649 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 01:09:19,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 15 events. 0/15 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 43 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-29 01:09:19,650 INFO L146 LiptonReduction]: Number of co-enabled transitions 42 [2021-04-29 01:09:19,829 INFO L158 LiptonReduction]: Checked pairs total: 63 [2021-04-29 01:09:19,829 INFO L160 LiptonReduction]: Total number of compositions: 1 [2021-04-29 01:09:19,830 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 185 [2021-04-29 01:09:19,836 INFO L480 AbstractCegarLoop]: Abstraction has has 15 places, 14 transitions, 29 flow [2021-04-29 01:09:19,837 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 266.5) internal successors, (533), 2 states have internal predecessors, (533), 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 01:09:19,837 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:09:19,837 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2021-04-29 01:09:19,838 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-29 01:09:19,838 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:09:19,840 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:09:19,841 INFO L82 PathProgramCache]: Analyzing trace with hash 439009, now seen corresponding path program 1 times [2021-04-29 01:09:19,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:09:19,841 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724731340] [2021-04-29 01:09:19,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:09:19,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:09:20,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:09:20,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-04-29 01:09:20,040 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:09:20,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 01:09:20,041 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 01:09:20,041 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724731340] [2021-04-29 01:09:20,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:09:20,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 01:09:20,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003554752] [2021-04-29 01:09:20,043 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 01:09:20,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:09:20,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 01:09:20,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 01:09:20,047 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 295 [2021-04-29 01:09:20,048 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 14 transitions, 29 flow. Second operand has 3 states, 3 states have (on average 197.66666666666666) internal successors, (593), 3 states have internal predecessors, (593), 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 01:09:20,048 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:09:20,048 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 295 [2021-04-29 01:09:20,048 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:09:20,069 INFO L129 PetriNetUnfolder]: 0/13 cut-off events. [2021-04-29 01:09:20,069 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 01:09:20,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20 conditions, 13 events. 0/13 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 36 event pairs, 0 based on Foata normal form. 1/6 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2021-04-29 01:09:20,069 INFO L132 encePairwiseOnDemand]: 293/295 looper letters, 2 selfloop transitions, 0 changer transitions 2/13 dead transitions. [2021-04-29 01:09:20,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 13 transitions, 35 flow [2021-04-29 01:09:20,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 01:09:20,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 01:09:20,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 596 transitions. [2021-04-29 01:09:20,073 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6734463276836158 [2021-04-29 01:09:20,073 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 596 transitions. [2021-04-29 01:09:20,074 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 596 transitions. [2021-04-29 01:09:20,074 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:09:20,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 596 transitions. [2021-04-29 01:09:20,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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 01:09:20,080 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 01:09:20,082 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 01:09:20,082 INFO L185 Difference]: Start difference. First operand has 15 places, 14 transitions, 29 flow. Second operand 3 states and 596 transitions. [2021-04-29 01:09:20,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 13 transitions, 35 flow [2021-04-29 01:09:20,082 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 17 places, 13 transitions, 35 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 01:09:20,083 INFO L241 Difference]: Finished difference. Result has 17 places, 11 transitions, 23 flow [2021-04-29 01:09:20,083 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=27, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=23, PETRI_PLACES=17, PETRI_TRANSITIONS=11} [2021-04-29 01:09:20,084 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -75 predicate places. [2021-04-29 01:09:20,084 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:09:20,084 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 17 places, 11 transitions, 23 flow [2021-04-29 01:09:20,085 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 17 places, 11 transitions, 23 flow [2021-04-29 01:09:20,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 13 places, 11 transitions, 23 flow [2021-04-29 01:09:20,087 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-04-29 01:09:20,088 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 01:09:20,088 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13 conditions, 11 events. 0/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 29 event pairs, 0 based on Foata normal form. 0/5 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2021-04-29 01:09:20,088 INFO L146 LiptonReduction]: Number of co-enabled transitions 28 [2021-04-29 01:09:20,089 INFO L158 LiptonReduction]: Checked pairs total: 14 [2021-04-29 01:09:20,089 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 01:09:20,089 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-04-29 01:09:20,090 INFO L480 AbstractCegarLoop]: Abstraction has has 13 places, 11 transitions, 23 flow [2021-04-29 01:09:20,091 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 197.66666666666666) internal successors, (593), 3 states have internal predecessors, (593), 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 01:09:20,091 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:09:20,091 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2021-04-29 01:09:20,091 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-29 01:09:20,091 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:09:20,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:09:20,092 INFO L82 PathProgramCache]: Analyzing trace with hash 14056875, now seen corresponding path program 1 times [2021-04-29 01:09:20,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:09:20,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7121873] [2021-04-29 01:09:20,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:09:20,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-29 01:09:20,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:09:20,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-29 01:09:20,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-29 01:09:20,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-29 01:09:20,201 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 01:09:20,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7121873] [2021-04-29 01:09:20,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-29 01:09:20,202 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-29 01:09:20,202 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673655728] [2021-04-29 01:09:20,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-29 01:09:20,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-29 01:09:20,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-29 01:09:20,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-29 01:09:20,205 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 295 [2021-04-29 01:09:20,206 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 13 places, 11 transitions, 23 flow. Second operand has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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 01:09:20,206 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-29 01:09:20,206 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 295 [2021-04-29 01:09:20,207 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-29 01:09:20,241 INFO L129 PetriNetUnfolder]: 0/22 cut-off events. [2021-04-29 01:09:20,241 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-29 01:09:20,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 22 events. 0/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 78 event pairs, 0 based on Foata normal form. 5/19 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2021-04-29 01:09:20,242 INFO L132 encePairwiseOnDemand]: 289/295 looper letters, 2 selfloop transitions, 5 changer transitions 7/15 dead transitions. [2021-04-29 01:09:20,242 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 15 places, 15 transitions, 53 flow [2021-04-29 01:09:20,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-29 01:09:20,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-29 01:09:20,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 483 transitions. [2021-04-29 01:09:20,245 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5457627118644067 [2021-04-29 01:09:20,245 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 483 transitions. [2021-04-29 01:09:20,245 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 483 transitions. [2021-04-29 01:09:20,246 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-29 01:09:20,246 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 483 transitions. [2021-04-29 01:09:20,247 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 161.0) internal successors, (483), 3 states have internal predecessors, (483), 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 01:09:20,250 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 01:09:20,251 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 295.0) internal successors, (1180), 4 states have internal predecessors, (1180), 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 01:09:20,251 INFO L185 Difference]: Start difference. First operand has 13 places, 11 transitions, 23 flow. Second operand 3 states and 483 transitions. [2021-04-29 01:09:20,251 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 15 places, 15 transitions, 53 flow [2021-04-29 01:09:20,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 15 places, 15 transitions, 53 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-29 01:09:20,252 INFO L241 Difference]: Finished difference. Result has 16 places, 8 transitions, 34 flow [2021-04-29 01:09:20,252 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=295, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=11, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=34, PETRI_PLACES=16, PETRI_TRANSITIONS=8} [2021-04-29 01:09:20,253 INFO L343 CegarLoopForPetriNet]: 92 programPoint places, -76 predicate places. [2021-04-29 01:09:20,253 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-29 01:09:20,253 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 16 places, 8 transitions, 34 flow [2021-04-29 01:09:20,253 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 16 places, 8 transitions, 34 flow [2021-04-29 01:09:20,254 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 13 places, 8 transitions, 34 flow [2021-04-29 01:09:20,256 INFO L129 PetriNetUnfolder]: 0/11 cut-off events. [2021-04-29 01:09:20,257 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-04-29 01:09:20,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28 conditions, 11 events. 0/11 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 18 event pairs, 0 based on Foata normal form. 0/8 useless extension candidates. Maximal degree in co-relation 0. Up to 9 conditions per place. [2021-04-29 01:09:20,257 INFO L146 LiptonReduction]: Number of co-enabled transitions 0 [2021-04-29 01:09:20,258 INFO L158 LiptonReduction]: Checked pairs total: 0 [2021-04-29 01:09:20,258 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-29 01:09:20,258 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5 [2021-04-29 01:09:20,259 INFO L480 AbstractCegarLoop]: Abstraction has has 13 places, 8 transitions, 34 flow [2021-04-29 01:09:20,260 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 158.0) internal successors, (474), 3 states have internal predecessors, (474), 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 01:09:20,260 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-29 01:09:20,260 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2021-04-29 01:09:20,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-29 01:09:20,260 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-29 01:09:20,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-29 01:09:20,261 INFO L82 PathProgramCache]: Analyzing trace with hash 435766274, now seen corresponding path program 1 times [2021-04-29 01:09:20,261 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-29 01:09:20,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1015320340] [2021-04-29 01:09:20,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-29 01:09:20,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 01:09:20,299 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 01:09:20,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-04-29 01:09:20,326 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-04-29 01:09:20,352 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-04-29 01:09:20,352 INFO L634 BasicCegarLoop]: Counterexample might be feasible [2021-04-29 01:09:20,352 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-29 01:09:20,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.04 01:09:20 BasicIcfg [2021-04-29 01:09:20,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-04-29 01:09:20,388 INFO L168 Benchmark]: Toolchain (without parser) took 51019.42 ms. Allocated memory was 302.0 MB in the beginning and 524.3 MB in the end (delta: 222.3 MB). Free memory was 274.7 MB in the beginning and 428.6 MB in the end (delta: -153.9 MB). Peak memory consumption was 71.2 MB. Max. memory is 16.0 GB. [2021-04-29 01:09:20,388 INFO L168 Benchmark]: CDTParser took 0.80 ms. Allocated memory is still 302.0 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-04-29 01:09:20,389 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1523.99 ms. Allocated memory is still 302.0 MB. Free memory was 271.4 MB in the beginning and 168.2 MB in the end (delta: 103.2 MB). Peak memory consumption was 101.9 MB. Max. memory is 16.0 GB. [2021-04-29 01:09:20,389 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.45 ms. Allocated memory is still 302.0 MB. Free memory was 168.2 MB in the beginning and 165.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-04-29 01:09:20,390 INFO L168 Benchmark]: Boogie Preprocessor took 48.95 ms. Allocated memory is still 302.0 MB. Free memory was 165.1 MB in the beginning and 163.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-04-29 01:09:20,390 INFO L168 Benchmark]: RCFGBuilder took 790.87 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 163.0 MB in the beginning and 316.5 MB in the end (delta: -153.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. [2021-04-29 01:09:20,391 INFO L168 Benchmark]: TraceAbstraction took 48463.79 ms. Allocated memory was 362.8 MB in the beginning and 524.3 MB in the end (delta: 161.5 MB). Free memory was 315.4 MB in the beginning and 428.6 MB in the end (delta: -113.2 MB). Peak memory consumption was 49.3 MB. Max. memory is 16.0 GB. [2021-04-29 01:09:20,393 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80 ms. Allocated memory is still 302.0 MB. Free memory is still 271.7 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1523.99 ms. Allocated memory is still 302.0 MB. Free memory was 271.4 MB in the beginning and 168.2 MB in the end (delta: 103.2 MB). Peak memory consumption was 101.9 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 74.45 ms. Allocated memory is still 302.0 MB. Free memory was 168.2 MB in the beginning and 165.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 48.95 ms. Allocated memory is still 302.0 MB. Free memory was 165.1 MB in the beginning and 163.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 790.87 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 163.0 MB in the beginning and 316.5 MB in the end (delta: -153.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 48463.79 ms. Allocated memory was 362.8 MB in the beginning and 524.3 MB in the end (delta: 161.5 MB). Free memory was 315.4 MB in the beginning and 428.6 MB in the end (delta: -113.2 MB). Peak memory consumption was 49.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 47007.2ms, 77 PlacesBefore, 92 PlacesAfterwards, 76 TransitionsBefore, 90 TransitionsAfterwards, 168 CoEnabledTransitionPairs, 8 FixpointIterations, 178 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 1 TrivialYvCompositions, 1 ConcurrentYvCompositions, 2 ChoiceCompositions, 207 TotalNumberOfCompositions, 414 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 308, positive: 286, positive conditional: 286, positive unconditional: 0, negative: 22, negative conditional: 22, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 176, positive: 167, positive conditional: 0, positive unconditional: 167, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 176, positive: 167, positive conditional: 0, positive unconditional: 167, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 176, positive: 165, positive conditional: 0, positive unconditional: 165, negative: 11, negative conditional: 0, negative unconditional: 11, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 11, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 79, positive: 8, positive conditional: 0, positive unconditional: 8, negative: 71, negative conditional: 0, negative unconditional: 71, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 308, positive: 119, positive conditional: 119, positive unconditional: 0, negative: 13, negative conditional: 13, negative unconditional: 0, unknown: 176, unknown conditional: 176, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 176, Positive cache size: 167, Positive conditional cache size: 167, Positive unconditional cache size: 0, Negative cache size: 9, Negative conditional cache size: 9, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 183.7ms, 83 PlacesBefore, 15 PlacesAfterwards, 13 TransitionsBefore, 14 TransitionsAfterwards, 42 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, 63 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 23, positive: 15, positive conditional: 15, positive unconditional: 0, negative: 8, negative conditional: 8, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 11, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 17, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 23, positive: 6, positive conditional: 6, positive unconditional: 0, negative: 6, negative conditional: 6, negative unconditional: 0, unknown: 11, unknown conditional: 11, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 187, Positive cache size: 176, Positive conditional cache size: 176, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.3ms, 17 PlacesBefore, 13 PlacesAfterwards, 11 TransitionsBefore, 11 TransitionsAfterwards, 28 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, 14 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 2, 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: 4, positive: 2, positive conditional: 2, positive unconditional: 0, negative: 2, negative conditional: 2, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 187, Positive cache size: 176, Positive conditional cache size: 176, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.8ms, 16 PlacesBefore, 13 PlacesAfterwards, 8 TransitionsBefore, 8 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): 187, Positive cache size: 176, Positive conditional cache size: 176, Positive unconditional cache size: 0, Negative cache size: 11, Negative conditional cache size: 11, Negative unconditional cache size: 0 - CounterExampleResult [Line: 1695]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1696] 0 pthread_t t1; [L1697] 0 pthread_mutex_t mutex; [L1698] 0 int pdev; [L1709] 0 pdev = 1 [L1695] COND FALSE 0 !(!expression) [L1711] COND TRUE 0 __VERIFIER_nondet_int() [L1712] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={7:0}, pdev=1, t1={5:0}] [L1713] 0 return 0; [L1734] COND FALSE 0 !(module_init()!=0) [L1721] 0 void *status; [L1723] 0 pdev = 4 VAL [arg={0:0}, mutex={7:0}, pdev=4, t1={5:0}] [L1702] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={7:0}, pdev=6, t1={5:0}] [L1695] COND TRUE 0 !expression [L1695] 0 reach_error() VAL [arg={0:0}, arg={0:0}, mutex={7:0}, pdev=6, t1={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 83 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.3ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 48313.3ms, OverallIterations: 4, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 187.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 47157.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 15 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 13 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 28.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 20.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=186occurred in iteration=0, InterpolantAutomatonStates: 8, 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: 13.5ms SsaConstructionTime, 119.6ms SatisfiabilityAnalysisTime, 221.6ms InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...