/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-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations BEFORE -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 02:10:47,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 02:10:47,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 02:10:47,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 02:10:47,879 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 02:10:47,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 02:10:47,880 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 02:10:47,881 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 02:10:47,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 02:10:47,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 02:10:47,883 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 02:10:47,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 02:10:47,885 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 02:10:47,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 02:10:47,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 02:10:47,886 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 02:10:47,888 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 02:10:47,892 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 02:10:47,893 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 02:10:47,893 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 02:10:47,894 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-VariableLbe.epf [2023-01-28 02:10:47,907 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 02:10:47,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 02:10:47,908 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 02:10:47,908 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 02:10:47,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 02:10:47,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 02:10:47,908 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 02:10:47,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 02:10:47,909 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 02:10:47,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 02:10:47,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 02:10:47,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 02:10:47,909 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 02:10:47,909 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 02:10:47,909 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 02:10:47,909 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 02:10:47,909 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 02:10:47,910 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 02:10:47,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 02:10:47,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 02:10:47,910 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 02:10:47,910 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 02:10:47,910 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 02:10:47,910 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:10:47,910 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 02:10:47,910 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 02:10:47,910 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 02:10:47,911 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 02:10:47,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 02:10:47,911 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 02:10:47,911 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 02:10:47,911 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 02:10:48,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 02:10:48,113 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 02:10:48,115 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 02:10:48,115 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 02:10:48,116 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 02:10:48,116 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-01-28 02:10:49,087 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 02:10:49,301 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 02:10:49,302 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-01-28 02:10:49,310 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/724a780db/371c30aebb5e4521bab890daffff1c42/FLAGf500a411c [2023-01-28 02:10:49,322 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/724a780db/371c30aebb5e4521bab890daffff1c42 [2023-01-28 02:10:49,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 02:10:49,324 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 02:10:49,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 02:10:49,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 02:10:49,327 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 02:10:49,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:10:49" (1/1) ... [2023-01-28 02:10:49,329 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e4ded1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49, skipping insertion in model container [2023-01-28 02:10:49,329 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 02:10:49" (1/1) ... [2023-01-28 02:10:49,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 02:10:49,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 02:10:49,447 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-01-28 02:10:49,527 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:10:49,536 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 02:10:49,544 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-01-28 02:10:49,563 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 02:10:49,587 INFO L208 MainTranslator]: Completed translation [2023-01-28 02:10:49,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49 WrapperNode [2023-01-28 02:10:49,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 02:10:49,589 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 02:10:49,589 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 02:10:49,589 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 02:10:49,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49" (1/1) ... [2023-01-28 02:10:49,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49" (1/1) ... [2023-01-28 02:10:49,638 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 143 [2023-01-28 02:10:49,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 02:10:49,639 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 02:10:49,639 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 02:10:49,639 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 02:10:49,645 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49" (1/1) ... [2023-01-28 02:10:49,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49" (1/1) ... [2023-01-28 02:10:49,661 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49" (1/1) ... [2023-01-28 02:10:49,661 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49" (1/1) ... [2023-01-28 02:10:49,678 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49" (1/1) ... [2023-01-28 02:10:49,680 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49" (1/1) ... [2023-01-28 02:10:49,681 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49" (1/1) ... [2023-01-28 02:10:49,682 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49" (1/1) ... [2023-01-28 02:10:49,684 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 02:10:49,684 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 02:10:49,684 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 02:10:49,684 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 02:10:49,685 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49" (1/1) ... [2023-01-28 02:10:49,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 02:10:49,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 02:10:49,707 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 02:10:49,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 02:10:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 02:10:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 02:10:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 02:10:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 02:10:49,742 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-28 02:10:49,743 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-28 02:10:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 02:10:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 02:10:49,743 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 02:10:49,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 02:10:49,744 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 02:10:49,878 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 02:10:49,879 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 02:10:50,124 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 02:10:50,130 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 02:10:50,130 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 02:10:50,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:10:50 BoogieIcfgContainer [2023-01-28 02:10:50,131 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 02:10:50,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 02:10:50,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 02:10:50,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 02:10:50,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 02:10:49" (1/3) ... [2023-01-28 02:10:50,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40756539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:10:50, skipping insertion in model container [2023-01-28 02:10:50,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 02:10:49" (2/3) ... [2023-01-28 02:10:50,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40756539 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 02:10:50, skipping insertion in model container [2023-01-28 02:10:50,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 02:10:50" (3/3) ... [2023-01-28 02:10:50,139 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-01-28 02:10:50,153 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 02:10:50,153 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-01-28 02:10:50,153 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 02:10:50,220 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 02:10:50,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 166 transitions, 337 flow [2023-01-28 02:10:50,293 INFO L130 PetriNetUnfolder]: 8/168 cut-off events. [2023-01-28 02:10:50,294 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:10:50,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 168 events. 8/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 148 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 121. Up to 2 conditions per place. [2023-01-28 02:10:50,299 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 166 transitions, 337 flow [2023-01-28 02:10:50,303 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 164 transitions, 331 flow [2023-01-28 02:10:50,321 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 02:10:50,343 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 164 transitions, 331 flow [2023-01-28 02:10:50,345 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 164 transitions, 331 flow [2023-01-28 02:10:50,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 164 transitions, 331 flow [2023-01-28 02:10:50,367 INFO L130 PetriNetUnfolder]: 8/164 cut-off events. [2023-01-28 02:10:50,368 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:10:50,369 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 164 events. 8/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 140 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 121. Up to 2 conditions per place. [2023-01-28 02:10:50,371 INFO L119 LiptonReduction]: Number of co-enabled transitions 6840 [2023-01-28 02:10:54,081 INFO L134 LiptonReduction]: Checked pairs total: 11483 [2023-01-28 02:10:54,081 INFO L136 LiptonReduction]: Total number of compositions: 172 [2023-01-28 02:10:54,091 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 02:10:54,095 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@596449d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 02:10:54,095 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-01-28 02:10:54,098 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2023-01-28 02:10:54,098 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:10:54,098 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:54,098 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 02:10:54,099 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 02:10:54,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:54,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1949425250, now seen corresponding path program 1 times [2023-01-28 02:10:54,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:54,108 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638719016] [2023-01-28 02:10:54,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:54,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:54,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:10:54,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:10:54,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:10:54,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638719016] [2023-01-28 02:10:54,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638719016] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:10:54,262 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:10:54,262 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 02:10:54,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248663246] [2023-01-28 02:10:54,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:10:54,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 02:10:54,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:10:54,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 02:10:54,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 02:10:54,286 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 338 [2023-01-28 02:10:54,287 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 67 flow. Second operand has 2 states, 2 states have (on average 158.0) internal successors, (316), 2 states have internal predecessors, (316), 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) [2023-01-28 02:10:54,287 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:10:54,287 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 338 [2023-01-28 02:10:54,288 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:10:54,374 INFO L130 PetriNetUnfolder]: 113/275 cut-off events. [2023-01-28 02:10:54,374 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:10:54,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 520 conditions, 275 events. 113/275 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1100 event pairs, 104 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 511. Up to 241 conditions per place. [2023-01-28 02:10:54,379 INFO L137 encePairwiseOnDemand]: 336/338 looper letters, 20 selfloop transitions, 0 changer transitions 4/29 dead transitions. [2023-01-28 02:10:54,379 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 109 flow [2023-01-28 02:10:54,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 02:10:54,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 02:10:54,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 336 transitions. [2023-01-28 02:10:54,395 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4970414201183432 [2023-01-28 02:10:54,396 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 336 transitions. [2023-01-28 02:10:54,396 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 336 transitions. [2023-01-28 02:10:54,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:10:54,400 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 336 transitions. [2023-01-28 02:10:54,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 168.0) internal successors, (336), 2 states have internal predecessors, (336), 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) [2023-01-28 02:10:54,406 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 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) [2023-01-28 02:10:54,407 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 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) [2023-01-28 02:10:54,408 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 67 flow. Second operand 2 states and 336 transitions. [2023-01-28 02:10:54,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 109 flow [2023-01-28 02:10:54,410 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 02:10:54,411 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 52 flow [2023-01-28 02:10:54,413 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=52, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2023-01-28 02:10:54,416 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2023-01-28 02:10:54,417 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 52 flow [2023-01-28 02:10:54,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 158.0) internal successors, (316), 2 states have internal predecessors, (316), 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) [2023-01-28 02:10:54,417 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:54,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 02:10:54,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 02:10:54,417 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 02:10:54,419 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:54,419 INFO L85 PathProgramCache]: Analyzing trace with hash 1949297308, now seen corresponding path program 1 times [2023-01-28 02:10:54,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:54,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339746216] [2023-01-28 02:10:54,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:54,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:10:54,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:10:54,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:10:54,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339746216] [2023-01-28 02:10:54,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339746216] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:10:54,613 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:10:54,613 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 02:10:54,613 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749115045] [2023-01-28 02:10:54,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:10:54,614 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 02:10:54,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:10:54,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 02:10:54,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 02:10:54,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 338 [2023-01-28 02:10:54,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 142.5) internal successors, (570), 4 states have internal predecessors, (570), 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) [2023-01-28 02:10:54,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:10:54,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 338 [2023-01-28 02:10:54,617 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:10:54,680 INFO L130 PetriNetUnfolder]: 83/229 cut-off events. [2023-01-28 02:10:54,680 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 02:10:54,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 229 events. 83/229 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 871 event pairs, 8 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 418. Up to 126 conditions per place. [2023-01-28 02:10:54,682 INFO L137 encePairwiseOnDemand]: 333/338 looper letters, 34 selfloop transitions, 5 changer transitions 0/44 dead transitions. [2023-01-28 02:10:54,682 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 44 transitions, 168 flow [2023-01-28 02:10:54,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 02:10:54,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 02:10:54,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 746 transitions. [2023-01-28 02:10:54,684 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4414201183431953 [2023-01-28 02:10:54,684 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 746 transitions. [2023-01-28 02:10:54,684 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 746 transitions. [2023-01-28 02:10:54,685 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:10:54,685 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 746 transitions. [2023-01-28 02:10:54,686 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 149.2) internal successors, (746), 5 states have internal predecessors, (746), 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) [2023-01-28 02:10:54,689 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 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) [2023-01-28 02:10:54,690 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 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) [2023-01-28 02:10:54,690 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 52 flow. Second operand 5 states and 746 transitions. [2023-01-28 02:10:54,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 44 transitions, 168 flow [2023-01-28 02:10:54,690 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 44 transitions, 168 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 02:10:54,691 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 83 flow [2023-01-28 02:10:54,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=83, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2023-01-28 02:10:54,692 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2023-01-28 02:10:54,692 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 83 flow [2023-01-28 02:10:54,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 142.5) internal successors, (570), 4 states have internal predecessors, (570), 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) [2023-01-28 02:10:54,692 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:54,692 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 02:10:54,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 02:10:54,693 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 02:10:54,693 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:54,693 INFO L85 PathProgramCache]: Analyzing trace with hash 668944993, now seen corresponding path program 1 times [2023-01-28 02:10:54,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:54,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860448083] [2023-01-28 02:10:54,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:54,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:10:54,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:10:54,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:10:54,797 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860448083] [2023-01-28 02:10:54,797 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860448083] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:10:54,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:10:54,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 02:10:54,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143802933] [2023-01-28 02:10:54,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:10:54,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 02:10:54,798 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:10:54,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 02:10:54,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 02:10:54,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 338 [2023-01-28 02:10:54,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 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) [2023-01-28 02:10:54,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:10:54,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 338 [2023-01-28 02:10:54,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:10:54,916 INFO L130 PetriNetUnfolder]: 94/257 cut-off events. [2023-01-28 02:10:54,916 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-01-28 02:10:54,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 257 events. 94/257 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1059 event pairs, 32 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 544. Up to 120 conditions per place. [2023-01-28 02:10:54,917 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 40 selfloop transitions, 9 changer transitions 0/54 dead transitions. [2023-01-28 02:10:54,918 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 54 transitions, 240 flow [2023-01-28 02:10:54,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 02:10:54,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 02:10:54,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1172 transitions. [2023-01-28 02:10:54,920 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4334319526627219 [2023-01-28 02:10:54,920 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1172 transitions. [2023-01-28 02:10:54,921 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1172 transitions. [2023-01-28 02:10:54,921 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:10:54,921 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1172 transitions. [2023-01-28 02:10:54,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 146.5) internal successors, (1172), 8 states have internal predecessors, (1172), 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) [2023-01-28 02:10:54,926 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 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) [2023-01-28 02:10:54,927 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 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) [2023-01-28 02:10:54,928 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 83 flow. Second operand 8 states and 1172 transitions. [2023-01-28 02:10:54,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 54 transitions, 240 flow [2023-01-28 02:10:54,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 02:10:54,930 INFO L231 Difference]: Finished difference. Result has 45 places, 32 transitions, 126 flow [2023-01-28 02:10:54,930 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=126, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2023-01-28 02:10:54,931 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2023-01-28 02:10:54,931 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 126 flow [2023-01-28 02:10:54,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 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) [2023-01-28 02:10:54,931 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:54,931 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 02:10:54,931 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 02:10:54,931 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 02:10:54,932 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:54,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1660388124, now seen corresponding path program 1 times [2023-01-28 02:10:54,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:54,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385917513] [2023-01-28 02:10:54,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:54,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:10:54,978 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:10:54,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:10:54,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385917513] [2023-01-28 02:10:54,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385917513] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:10:54,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:10:54,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 02:10:54,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010126529] [2023-01-28 02:10:54,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:10:54,979 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 02:10:54,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:10:54,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 02:10:54,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 02:10:54,981 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 338 [2023-01-28 02:10:54,981 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2023-01-28 02:10:54,981 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:10:54,981 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 338 [2023-01-28 02:10:54,981 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:10:55,041 INFO L130 PetriNetUnfolder]: 102/265 cut-off events. [2023-01-28 02:10:55,042 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-01-28 02:10:55,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 265 events. 102/265 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1040 event pairs, 37 based on Foata normal form. 15/280 useless extension candidates. Maximal degree in co-relation 634. Up to 151 conditions per place. [2023-01-28 02:10:55,043 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 34 selfloop transitions, 8 changer transitions 0/43 dead transitions. [2023-01-28 02:10:55,043 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 43 transitions, 233 flow [2023-01-28 02:10:55,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 02:10:55,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 02:10:55,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2023-01-28 02:10:55,045 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43984220907297833 [2023-01-28 02:10:55,045 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2023-01-28 02:10:55,045 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2023-01-28 02:10:55,045 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:10:55,045 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2023-01-28 02:10:55,046 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 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) [2023-01-28 02:10:55,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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) [2023-01-28 02:10:55,048 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 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) [2023-01-28 02:10:55,048 INFO L175 Difference]: Start difference. First operand has 45 places, 32 transitions, 126 flow. Second operand 3 states and 446 transitions. [2023-01-28 02:10:55,048 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 43 transitions, 233 flow [2023-01-28 02:10:55,050 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 43 transitions, 211 flow, removed 6 selfloop flow, removed 5 redundant places. [2023-01-28 02:10:55,050 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 127 flow [2023-01-28 02:10:55,050 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-01-28 02:10:55,051 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2023-01-28 02:10:55,051 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 127 flow [2023-01-28 02:10:55,051 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 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) [2023-01-28 02:10:55,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:55,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 02:10:55,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 02:10:55,052 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 02:10:55,052 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:55,052 INFO L85 PathProgramCache]: Analyzing trace with hash -1388907553, now seen corresponding path program 1 times [2023-01-28 02:10:55,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:55,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272458094] [2023-01-28 02:10:55,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:55,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:55,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:10:55,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:10:55,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:10:55,205 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272458094] [2023-01-28 02:10:55,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272458094] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:10:55,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:10:55,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 02:10:55,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606982649] [2023-01-28 02:10:55,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:10:55,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 02:10:55,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:10:55,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 02:10:55,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-01-28 02:10:55,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 338 [2023-01-28 02:10:55,208 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 127 flow. Second operand has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 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) [2023-01-28 02:10:55,208 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:10:55,208 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 338 [2023-01-28 02:10:55,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:10:55,336 INFO L130 PetriNetUnfolder]: 63/212 cut-off events. [2023-01-28 02:10:55,336 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2023-01-28 02:10:55,337 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 212 events. 63/212 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 912 event pairs, 31 based on Foata normal form. 10/217 useless extension candidates. Maximal degree in co-relation 554. Up to 110 conditions per place. [2023-01-28 02:10:55,337 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 41 selfloop transitions, 10 changer transitions 1/57 dead transitions. [2023-01-28 02:10:55,337 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 57 transitions, 311 flow [2023-01-28 02:10:55,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 02:10:55,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 02:10:55,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1124 transitions. [2023-01-28 02:10:55,340 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4156804733727811 [2023-01-28 02:10:55,340 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1124 transitions. [2023-01-28 02:10:55,340 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1124 transitions. [2023-01-28 02:10:55,341 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:10:55,341 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1124 transitions. [2023-01-28 02:10:55,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 140.5) internal successors, (1124), 8 states have internal predecessors, (1124), 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) [2023-01-28 02:10:55,346 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 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) [2023-01-28 02:10:55,346 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 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) [2023-01-28 02:10:55,347 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 127 flow. Second operand 8 states and 1124 transitions. [2023-01-28 02:10:55,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 57 transitions, 311 flow [2023-01-28 02:10:55,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 297 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 02:10:55,349 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 178 flow [2023-01-28 02:10:55,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=178, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2023-01-28 02:10:55,349 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 18 predicate places. [2023-01-28 02:10:55,349 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 178 flow [2023-01-28 02:10:55,350 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 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) [2023-01-28 02:10:55,350 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:55,350 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 02:10:55,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 02:10:55,350 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 02:10:55,350 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:55,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1288531683, now seen corresponding path program 1 times [2023-01-28 02:10:55,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:55,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2414259] [2023-01-28 02:10:55,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:55,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:55,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:10:55,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:10:55,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:10:55,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2414259] [2023-01-28 02:10:55,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2414259] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:10:55,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:10:55,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 02:10:55,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590668856] [2023-01-28 02:10:55,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:10:55,483 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 02:10:55,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:10:55,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 02:10:55,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 02:10:55,484 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 338 [2023-01-28 02:10:55,485 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 178 flow. Second operand has 5 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 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) [2023-01-28 02:10:55,485 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:10:55,485 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 338 [2023-01-28 02:10:55,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:10:55,575 INFO L130 PetriNetUnfolder]: 62/211 cut-off events. [2023-01-28 02:10:55,575 INFO L131 PetriNetUnfolder]: For 140/142 co-relation queries the response was YES. [2023-01-28 02:10:55,576 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 211 events. 62/211 cut-off events. For 140/142 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 914 event pairs, 29 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 601. Up to 116 conditions per place. [2023-01-28 02:10:55,576 INFO L137 encePairwiseOnDemand]: 333/338 looper letters, 39 selfloop transitions, 8 changer transitions 0/54 dead transitions. [2023-01-28 02:10:55,576 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 54 transitions, 335 flow [2023-01-28 02:10:55,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 02:10:55,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 02:10:55,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 716 transitions. [2023-01-28 02:10:55,579 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4236686390532544 [2023-01-28 02:10:55,579 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 716 transitions. [2023-01-28 02:10:55,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 716 transitions. [2023-01-28 02:10:55,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:10:55,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 716 transitions. [2023-01-28 02:10:55,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 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) [2023-01-28 02:10:55,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 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) [2023-01-28 02:10:55,584 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 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) [2023-01-28 02:10:55,584 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 178 flow. Second operand 5 states and 716 transitions. [2023-01-28 02:10:55,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 54 transitions, 335 flow [2023-01-28 02:10:55,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 54 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 02:10:55,588 INFO L231 Difference]: Finished difference. Result has 55 places, 40 transitions, 204 flow [2023-01-28 02:10:55,588 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=204, PETRI_PLACES=55, PETRI_TRANSITIONS=40} [2023-01-28 02:10:55,590 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 22 predicate places. [2023-01-28 02:10:55,590 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 40 transitions, 204 flow [2023-01-28 02:10:55,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 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) [2023-01-28 02:10:55,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:55,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 02:10:55,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 02:10:55,591 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 02:10:55,591 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:55,591 INFO L85 PathProgramCache]: Analyzing trace with hash 344959075, now seen corresponding path program 1 times [2023-01-28 02:10:55,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:55,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132257243] [2023-01-28 02:10:55,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:55,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:55,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:10:55,684 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:10:55,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:10:55,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132257243] [2023-01-28 02:10:55,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132257243] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:10:55,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:10:55,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 02:10:55,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262712528] [2023-01-28 02:10:55,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:10:55,686 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 02:10:55,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:10:55,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 02:10:55,689 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 02:10:55,690 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 338 [2023-01-28 02:10:55,690 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 40 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 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) [2023-01-28 02:10:55,691 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:10:55,691 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 338 [2023-01-28 02:10:55,691 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:10:55,762 INFO L130 PetriNetUnfolder]: 58/197 cut-off events. [2023-01-28 02:10:55,763 INFO L131 PetriNetUnfolder]: For 141/141 co-relation queries the response was YES. [2023-01-28 02:10:55,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 197 events. 58/197 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 828 event pairs, 32 based on Foata normal form. 5/198 useless extension candidates. Maximal degree in co-relation 601. Up to 109 conditions per place. [2023-01-28 02:10:55,764 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 40 selfloop transitions, 10 changer transitions 1/56 dead transitions. [2023-01-28 02:10:55,764 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 56 transitions, 374 flow [2023-01-28 02:10:55,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 02:10:55,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 02:10:55,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1028 transitions. [2023-01-28 02:10:55,766 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4344885883347422 [2023-01-28 02:10:55,766 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1028 transitions. [2023-01-28 02:10:55,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1028 transitions. [2023-01-28 02:10:55,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:10:55,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1028 transitions. [2023-01-28 02:10:55,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 146.85714285714286) internal successors, (1028), 7 states have internal predecessors, (1028), 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) [2023-01-28 02:10:55,771 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 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) [2023-01-28 02:10:55,771 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 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) [2023-01-28 02:10:55,771 INFO L175 Difference]: Start difference. First operand has 55 places, 40 transitions, 204 flow. Second operand 7 states and 1028 transitions. [2023-01-28 02:10:55,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 56 transitions, 374 flow [2023-01-28 02:10:55,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 56 transitions, 359 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-01-28 02:10:55,774 INFO L231 Difference]: Finished difference. Result has 62 places, 43 transitions, 247 flow [2023-01-28 02:10:55,774 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=247, PETRI_PLACES=62, PETRI_TRANSITIONS=43} [2023-01-28 02:10:55,775 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 29 predicate places. [2023-01-28 02:10:55,776 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 43 transitions, 247 flow [2023-01-28 02:10:55,776 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 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) [2023-01-28 02:10:55,776 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:55,776 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 02:10:55,776 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 02:10:55,776 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 02:10:55,777 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:55,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1328339176, now seen corresponding path program 1 times [2023-01-28 02:10:55,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:55,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362562107] [2023-01-28 02:10:55,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:55,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:55,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:10:55,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:10:55,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:10:55,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362562107] [2023-01-28 02:10:55,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362562107] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:10:55,954 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:10:55,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 02:10:55,954 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63880092] [2023-01-28 02:10:55,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:10:55,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 02:10:55,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:10:55,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 02:10:55,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-01-28 02:10:55,956 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 338 [2023-01-28 02:10:55,956 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 43 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 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) [2023-01-28 02:10:55,956 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:10:55,956 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 338 [2023-01-28 02:10:55,957 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:10:56,018 INFO L130 PetriNetUnfolder]: 76/218 cut-off events. [2023-01-28 02:10:56,018 INFO L131 PetriNetUnfolder]: For 253/253 co-relation queries the response was YES. [2023-01-28 02:10:56,019 INFO L83 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 218 events. 76/218 cut-off events. For 253/253 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 846 event pairs, 25 based on Foata normal form. 4/222 useless extension candidates. Maximal degree in co-relation 730. Up to 117 conditions per place. [2023-01-28 02:10:56,019 INFO L137 encePairwiseOnDemand]: 333/338 looper letters, 41 selfloop transitions, 8 changer transitions 3/55 dead transitions. [2023-01-28 02:10:56,019 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 55 transitions, 415 flow [2023-01-28 02:10:56,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 02:10:56,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 02:10:56,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 527 transitions. [2023-01-28 02:10:56,021 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38979289940828404 [2023-01-28 02:10:56,021 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 527 transitions. [2023-01-28 02:10:56,021 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 527 transitions. [2023-01-28 02:10:56,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:10:56,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 527 transitions. [2023-01-28 02:10:56,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 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) [2023-01-28 02:10:56,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 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) [2023-01-28 02:10:56,024 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 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) [2023-01-28 02:10:56,024 INFO L175 Difference]: Start difference. First operand has 62 places, 43 transitions, 247 flow. Second operand 4 states and 527 transitions. [2023-01-28 02:10:56,024 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 55 transitions, 415 flow [2023-01-28 02:10:56,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 55 transitions, 403 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-01-28 02:10:56,028 INFO L231 Difference]: Finished difference. Result has 62 places, 41 transitions, 243 flow [2023-01-28 02:10:56,028 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=243, PETRI_PLACES=62, PETRI_TRANSITIONS=41} [2023-01-28 02:10:56,030 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 29 predicate places. [2023-01-28 02:10:56,030 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 41 transitions, 243 flow [2023-01-28 02:10:56,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 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) [2023-01-28 02:10:56,030 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:56,030 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 02:10:56,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 02:10:56,031 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 02:10:56,031 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:56,031 INFO L85 PathProgramCache]: Analyzing trace with hash -1671539549, now seen corresponding path program 1 times [2023-01-28 02:10:56,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:56,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1648736291] [2023-01-28 02:10:56,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:56,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:10:56,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:10:56,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:10:56,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1648736291] [2023-01-28 02:10:56,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1648736291] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:10:56,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:10:56,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-28 02:10:56,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806000696] [2023-01-28 02:10:56,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:10:56,136 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 02:10:56,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:10:56,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 02:10:56,137 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-28 02:10:56,137 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 338 [2023-01-28 02:10:56,138 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 41 transitions, 243 flow. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2023-01-28 02:10:56,138 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:10:56,138 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 338 [2023-01-28 02:10:56,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:10:56,209 INFO L130 PetriNetUnfolder]: 46/163 cut-off events. [2023-01-28 02:10:56,209 INFO L131 PetriNetUnfolder]: For 188/188 co-relation queries the response was YES. [2023-01-28 02:10:56,209 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 163 events. 46/163 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 608 event pairs, 7 based on Foata normal form. 6/168 useless extension candidates. Maximal degree in co-relation 556. Up to 58 conditions per place. [2023-01-28 02:10:56,225 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 36 selfloop transitions, 8 changer transitions 1/53 dead transitions. [2023-01-28 02:10:56,225 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 53 transitions, 389 flow [2023-01-28 02:10:56,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-28 02:10:56,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-28 02:10:56,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1087 transitions. [2023-01-28 02:10:56,228 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40199704142011833 [2023-01-28 02:10:56,228 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1087 transitions. [2023-01-28 02:10:56,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1087 transitions. [2023-01-28 02:10:56,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:10:56,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1087 transitions. [2023-01-28 02:10:56,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 135.875) internal successors, (1087), 8 states have internal predecessors, (1087), 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) [2023-01-28 02:10:56,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 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) [2023-01-28 02:10:56,233 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 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) [2023-01-28 02:10:56,233 INFO L175 Difference]: Start difference. First operand has 62 places, 41 transitions, 243 flow. Second operand 8 states and 1087 transitions. [2023-01-28 02:10:56,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 53 transitions, 389 flow [2023-01-28 02:10:56,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 53 transitions, 373 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 02:10:56,235 INFO L231 Difference]: Finished difference. Result has 63 places, 40 transitions, 239 flow [2023-01-28 02:10:56,235 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=239, PETRI_PLACES=63, PETRI_TRANSITIONS=40} [2023-01-28 02:10:56,235 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 30 predicate places. [2023-01-28 02:10:56,236 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 40 transitions, 239 flow [2023-01-28 02:10:56,236 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 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) [2023-01-28 02:10:56,236 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:56,236 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 02:10:56,236 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 02:10:56,236 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 02:10:56,236 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:56,237 INFO L85 PathProgramCache]: Analyzing trace with hash -1411106432, now seen corresponding path program 1 times [2023-01-28 02:10:56,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:56,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1641128676] [2023-01-28 02:10:56,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:56,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:56,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:10:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:10:56,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:10:56,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1641128676] [2023-01-28 02:10:56,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1641128676] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:10:56,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:10:56,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-28 02:10:56,348 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023422362] [2023-01-28 02:10:56,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:10:56,349 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-28 02:10:56,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:10:56,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-28 02:10:56,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-01-28 02:10:56,350 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 338 [2023-01-28 02:10:56,351 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 40 transitions, 239 flow. Second operand has 7 states, 7 states have (on average 132.0) internal successors, (924), 7 states have internal predecessors, (924), 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) [2023-01-28 02:10:56,351 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:10:56,351 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 338 [2023-01-28 02:10:56,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:10:56,490 INFO L130 PetriNetUnfolder]: 42/153 cut-off events. [2023-01-28 02:10:56,490 INFO L131 PetriNetUnfolder]: For 201/201 co-relation queries the response was YES. [2023-01-28 02:10:56,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 153 events. 42/153 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 542 event pairs, 7 based on Foata normal form. 6/158 useless extension candidates. Maximal degree in co-relation 524. Up to 40 conditions per place. [2023-01-28 02:10:56,491 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 38 selfloop transitions, 11 changer transitions 2/59 dead transitions. [2023-01-28 02:10:56,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 59 transitions, 427 flow [2023-01-28 02:10:56,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-28 02:10:56,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-28 02:10:56,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1605 transitions. [2023-01-28 02:10:56,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39571005917159763 [2023-01-28 02:10:56,494 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1605 transitions. [2023-01-28 02:10:56,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1605 transitions. [2023-01-28 02:10:56,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:10:56,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1605 transitions. [2023-01-28 02:10:56,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 133.75) internal successors, (1605), 12 states have internal predecessors, (1605), 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) [2023-01-28 02:10:56,501 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 338.0) internal successors, (4394), 13 states have internal predecessors, (4394), 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) [2023-01-28 02:10:56,502 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 338.0) internal successors, (4394), 13 states have internal predecessors, (4394), 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) [2023-01-28 02:10:56,502 INFO L175 Difference]: Start difference. First operand has 63 places, 40 transitions, 239 flow. Second operand 12 states and 1605 transitions. [2023-01-28 02:10:56,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 59 transitions, 427 flow [2023-01-28 02:10:56,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 59 transitions, 399 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-01-28 02:10:56,504 INFO L231 Difference]: Finished difference. Result has 65 places, 40 transitions, 234 flow [2023-01-28 02:10:56,505 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=234, PETRI_PLACES=65, PETRI_TRANSITIONS=40} [2023-01-28 02:10:56,505 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 32 predicate places. [2023-01-28 02:10:56,505 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 40 transitions, 234 flow [2023-01-28 02:10:56,506 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 132.0) internal successors, (924), 7 states have internal predecessors, (924), 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) [2023-01-28 02:10:56,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:56,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 02:10:56,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-28 02:10:56,506 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 02:10:56,506 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:56,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1136432958, now seen corresponding path program 1 times [2023-01-28 02:10:56,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:56,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768926274] [2023-01-28 02:10:56,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:56,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:10:56,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:10:56,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:10:56,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768926274] [2023-01-28 02:10:56,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768926274] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:10:56,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:10:56,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 02:10:56,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795268300] [2023-01-28 02:10:56,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:10:56,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 02:10:56,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:10:56,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 02:10:56,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-28 02:10:56,627 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 338 [2023-01-28 02:10:56,627 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 40 transitions, 234 flow. Second operand has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 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) [2023-01-28 02:10:56,627 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:10:56,628 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 338 [2023-01-28 02:10:56,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:10:56,708 INFO L130 PetriNetUnfolder]: 41/153 cut-off events. [2023-01-28 02:10:56,709 INFO L131 PetriNetUnfolder]: For 187/187 co-relation queries the response was YES. [2023-01-28 02:10:56,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 153 events. 41/153 cut-off events. For 187/187 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 536 event pairs, 18 based on Foata normal form. 3/154 useless extension candidates. Maximal degree in co-relation 518. Up to 57 conditions per place. [2023-01-28 02:10:56,709 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 32 selfloop transitions, 13 changer transitions 5/55 dead transitions. [2023-01-28 02:10:56,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 55 transitions, 397 flow [2023-01-28 02:10:56,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 02:10:56,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 02:10:56,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 948 transitions. [2023-01-28 02:10:56,712 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.400676246830093 [2023-01-28 02:10:56,712 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 948 transitions. [2023-01-28 02:10:56,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 948 transitions. [2023-01-28 02:10:56,712 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:10:56,712 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 948 transitions. [2023-01-28 02:10:56,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.42857142857142) internal successors, (948), 7 states have internal predecessors, (948), 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) [2023-01-28 02:10:56,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 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) [2023-01-28 02:10:56,716 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 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) [2023-01-28 02:10:56,716 INFO L175 Difference]: Start difference. First operand has 65 places, 40 transitions, 234 flow. Second operand 7 states and 948 transitions. [2023-01-28 02:10:56,716 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 55 transitions, 397 flow [2023-01-28 02:10:56,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 55 transitions, 372 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-01-28 02:10:56,718 INFO L231 Difference]: Finished difference. Result has 64 places, 39 transitions, 240 flow [2023-01-28 02:10:56,718 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=240, PETRI_PLACES=64, PETRI_TRANSITIONS=39} [2023-01-28 02:10:56,718 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 31 predicate places. [2023-01-28 02:10:56,718 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 39 transitions, 240 flow [2023-01-28 02:10:56,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 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) [2023-01-28 02:10:56,719 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 02:10:56,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 02:10:56,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-28 02:10:56,719 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-28 02:10:56,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 02:10:56,719 INFO L85 PathProgramCache]: Analyzing trace with hash -2044695278, now seen corresponding path program 1 times [2023-01-28 02:10:56,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 02:10:56,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339490852] [2023-01-28 02:10:56,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 02:10:56,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 02:10:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 02:10:56,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 02:10:56,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 02:10:56,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339490852] [2023-01-28 02:10:56,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1339490852] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 02:10:56,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 02:10:56,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 02:10:56,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739171655] [2023-01-28 02:10:56,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 02:10:56,867 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 02:10:56,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 02:10:56,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 02:10:56,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-01-28 02:10:56,868 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 338 [2023-01-28 02:10:56,868 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 39 transitions, 240 flow. Second operand has 5 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 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) [2023-01-28 02:10:56,868 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 02:10:56,869 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 338 [2023-01-28 02:10:56,869 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 02:10:56,900 INFO L130 PetriNetUnfolder]: 24/98 cut-off events. [2023-01-28 02:10:56,901 INFO L131 PetriNetUnfolder]: For 154/154 co-relation queries the response was YES. [2023-01-28 02:10:56,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 98 events. 24/98 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 284 event pairs, 10 based on Foata normal form. 15/113 useless extension candidates. Maximal degree in co-relation 348. Up to 84 conditions per place. [2023-01-28 02:10:56,901 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2023-01-28 02:10:56,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 43 transitions, 322 flow [2023-01-28 02:10:56,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 02:10:56,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 02:10:56,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 522 transitions. [2023-01-28 02:10:56,903 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.386094674556213 [2023-01-28 02:10:56,903 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 522 transitions. [2023-01-28 02:10:56,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 522 transitions. [2023-01-28 02:10:56,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 02:10:56,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 522 transitions. [2023-01-28 02:10:56,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 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) [2023-01-28 02:10:56,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 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) [2023-01-28 02:10:56,905 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 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) [2023-01-28 02:10:56,905 INFO L175 Difference]: Start difference. First operand has 64 places, 39 transitions, 240 flow. Second operand 4 states and 522 transitions. [2023-01-28 02:10:56,906 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 43 transitions, 322 flow [2023-01-28 02:10:56,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 43 transitions, 297 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-01-28 02:10:56,907 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2023-01-28 02:10:56,907 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2023-01-28 02:10:56,907 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 24 predicate places. [2023-01-28 02:10:56,908 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2023-01-28 02:10:56,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 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) [2023-01-28 02:10:56,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-01-28 02:10:56,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-01-28 02:10:56,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-01-28 02:10:56,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-01-28 02:10:56,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-01-28 02:10:56,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-01-28 02:10:56,910 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-01-28 02:10:56,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-28 02:10:56,910 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 02:10:56,914 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 02:10:56,914 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 02:10:56,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 02:10:56 BasicIcfg [2023-01-28 02:10:56,916 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 02:10:56,917 INFO L158 Benchmark]: Toolchain (without parser) took 7592.36ms. Allocated memory was 539.0MB in the beginning and 648.0MB in the end (delta: 109.1MB). Free memory was 499.1MB in the beginning and 485.6MB in the end (delta: 13.5MB). Peak memory consumption was 123.8MB. Max. memory is 16.0GB. [2023-01-28 02:10:56,917 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 373.3MB. Free memory is still 322.5MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 02:10:56,917 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.79ms. Allocated memory is still 539.0MB. Free memory was 498.8MB in the beginning and 478.9MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-01-28 02:10:56,917 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.65ms. Allocated memory is still 539.0MB. Free memory was 478.9MB in the beginning and 476.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 02:10:56,917 INFO L158 Benchmark]: Boogie Preprocessor took 45.12ms. Allocated memory is still 539.0MB. Free memory was 476.5MB in the beginning and 474.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 02:10:56,917 INFO L158 Benchmark]: RCFGBuilder took 447.24ms. Allocated memory is still 539.0MB. Free memory was 474.8MB in the beginning and 456.5MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2023-01-28 02:10:56,918 INFO L158 Benchmark]: TraceAbstraction took 6783.56ms. Allocated memory was 539.0MB in the beginning and 648.0MB in the end (delta: 109.1MB). Free memory was 455.5MB in the beginning and 485.6MB in the end (delta: -30.1MB). Peak memory consumption was 79.7MB. Max. memory is 16.0GB. [2023-01-28 02:10:56,918 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 373.3MB. Free memory is still 322.5MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 262.79ms. Allocated memory is still 539.0MB. Free memory was 498.8MB in the beginning and 478.9MB in the end (delta: 19.8MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 49.65ms. Allocated memory is still 539.0MB. Free memory was 478.9MB in the beginning and 476.5MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 45.12ms. Allocated memory is still 539.0MB. Free memory was 476.5MB in the beginning and 474.8MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 447.24ms. Allocated memory is still 539.0MB. Free memory was 474.8MB in the beginning and 456.5MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 6783.56ms. Allocated memory was 539.0MB in the beginning and 648.0MB in the end (delta: 109.1MB). Free memory was 455.5MB in the beginning and 485.6MB in the end (delta: -30.1MB). Peak memory consumption was 79.7MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.7s, 160 PlacesBefore, 33 PlacesAfterwards, 164 TransitionsBefore, 32 TransitionsAfterwards, 6840 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 102 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 5 ChoiceCompositions, 172 TotalNumberOfCompositions, 11483 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6171, independent: 5919, independent conditional: 0, independent unconditional: 5919, dependent: 252, dependent conditional: 0, dependent unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3845, independent: 3793, independent conditional: 0, independent unconditional: 3793, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6171, independent: 2126, independent conditional: 0, independent unconditional: 2126, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 3845, unknown conditional: 0, unknown unconditional: 3845] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 230 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 6.7s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 370 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 370 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 971 IncrementalHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 11 mSDtfsCounter, 971 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=7, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-28 02:10:56,935 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...