/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/pthread-wmm/safe013_tso.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 00:47:06,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 00:47:06,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 00:47:06,675 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 00:47:06,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 00:47:06,685 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 00:47:06,686 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 00:47:06,687 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 00:47:06,687 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 00:47:06,688 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 00:47:06,689 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 00:47:06,690 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 00:47:06,691 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 00:47:06,697 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 00:47:06,697 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 00:47:06,698 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 00:47:06,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 00:47:06,705 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 00:47:06,706 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 00:47:06,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 00:47:06,713 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 00:47:06,734 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 00:47:06,734 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 00:47:06,734 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 00:47:06,734 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 00:47:06,735 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 00:47:06,735 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 00:47:06,735 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 00:47:06,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 00:47:06,735 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 00:47:06,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 00:47:06,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 00:47:06,735 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 00:47:06,735 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 00:47:06,735 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 00:47:06,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 00:47:06,736 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 00:47:06,736 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 00:47:06,736 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 00:47:06,736 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 00:47:06,736 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 00:47:06,736 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 00:47:06,736 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 00:47:06,736 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 00:47:06,736 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:47:06,736 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 00:47:06,737 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 00:47:06,737 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 00:47:06,737 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 00:47:06,737 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 00:47:06,737 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 00:47:06,737 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 00:47:06,737 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-01-28 00:47:06,906 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 00:47:06,928 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 00:47:06,930 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 00:47:06,930 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 00:47:06,931 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 00:47:06,931 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.i [2023-01-28 00:47:07,907 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 00:47:08,095 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 00:47:08,095 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.i [2023-01-28 00:47:08,106 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/688e4678c/b82f249c7a914ed0b024a6f36350cd40/FLAGe716cb41b [2023-01-28 00:47:08,116 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/688e4678c/b82f249c7a914ed0b024a6f36350cd40 [2023-01-28 00:47:08,118 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 00:47:08,119 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 00:47:08,119 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 00:47:08,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 00:47:08,122 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 00:47:08,122 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:47:08" (1/1) ... [2023-01-28 00:47:08,123 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e78b1f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08, skipping insertion in model container [2023-01-28 00:47:08,123 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 12:47:08" (1/1) ... [2023-01-28 00:47:08,127 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 00:47:08,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 00:47:08,262 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.i[945,958] [2023-01-28 00:47:08,416 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:47:08,423 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 00:47:08,434 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.i[945,958] [2023-01-28 00:47:08,462 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 00:47:08,489 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 00:47:08,489 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 00:47:08,494 INFO L208 MainTranslator]: Completed translation [2023-01-28 00:47:08,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08 WrapperNode [2023-01-28 00:47:08,494 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 00:47:08,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 00:47:08,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 00:47:08,495 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 00:47:08,500 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08" (1/1) ... [2023-01-28 00:47:08,522 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08" (1/1) ... [2023-01-28 00:47:08,541 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-01-28 00:47:08,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 00:47:08,541 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 00:47:08,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 00:47:08,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 00:47:08,547 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08" (1/1) ... [2023-01-28 00:47:08,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08" (1/1) ... [2023-01-28 00:47:08,560 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08" (1/1) ... [2023-01-28 00:47:08,561 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08" (1/1) ... [2023-01-28 00:47:08,564 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08" (1/1) ... [2023-01-28 00:47:08,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08" (1/1) ... [2023-01-28 00:47:08,566 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08" (1/1) ... [2023-01-28 00:47:08,567 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08" (1/1) ... [2023-01-28 00:47:08,568 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 00:47:08,569 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 00:47:08,569 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 00:47:08,569 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 00:47:08,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08" (1/1) ... [2023-01-28 00:47:08,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 00:47:08,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 00:47:08,604 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 00:47:08,619 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 00:47:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 00:47:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 00:47:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 00:47:08,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 00:47:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 00:47:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-01-28 00:47:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-01-28 00:47:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-01-28 00:47:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-01-28 00:47:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-01-28 00:47:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-01-28 00:47:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 00:47:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 00:47:08,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 00:47:08,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 00:47:08,632 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 00:47:08,715 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 00:47:08,716 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 00:47:08,872 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 00:47:08,877 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 00:47:08,877 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 00:47:08,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:47:08 BoogieIcfgContainer [2023-01-28 00:47:08,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 00:47:08,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 00:47:08,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 00:47:08,883 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 00:47:08,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 12:47:08" (1/3) ... [2023-01-28 00:47:08,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d6f900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:47:08, skipping insertion in model container [2023-01-28 00:47:08,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 12:47:08" (2/3) ... [2023-01-28 00:47:08,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46d6f900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 12:47:08, skipping insertion in model container [2023-01-28 00:47:08,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 12:47:08" (3/3) ... [2023-01-28 00:47:08,890 INFO L112 eAbstractionObserver]: Analyzing ICFG safe013_tso.i [2023-01-28 00:47:08,902 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 00:47:08,903 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 00:47:08,903 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 00:47:08,972 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 00:47:08,999 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 85 transitions, 185 flow [2023-01-28 00:47:09,049 INFO L130 PetriNetUnfolder]: 2/82 cut-off events. [2023-01-28 00:47:09,050 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:47:09,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 92 conditions, 82 events. 2/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 64. Up to 2 conditions per place. [2023-01-28 00:47:09,053 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 85 transitions, 185 flow [2023-01-28 00:47:09,057 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 79 places, 70 transitions, 149 flow [2023-01-28 00:47:09,060 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 00:47:09,072 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 70 transitions, 149 flow [2023-01-28 00:47:09,077 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 70 transitions, 149 flow [2023-01-28 00:47:09,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 70 transitions, 149 flow [2023-01-28 00:47:09,100 INFO L130 PetriNetUnfolder]: 1/70 cut-off events. [2023-01-28 00:47:09,101 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:47:09,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 70 events. 1/70 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 38 event pairs, 0 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 52. Up to 2 conditions per place. [2023-01-28 00:47:09,103 INFO L119 LiptonReduction]: Number of co-enabled transitions 1044 [2023-01-28 00:47:10,640 INFO L134 LiptonReduction]: Checked pairs total: 2101 [2023-01-28 00:47:10,640 INFO L136 LiptonReduction]: Total number of compositions: 58 [2023-01-28 00:47:10,649 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 00:47:10,653 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;@7765e253, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 00:47:10,653 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 00:47:10,656 INFO L130 PetriNetUnfolder]: 0/14 cut-off events. [2023-01-28 00:47:10,657 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 00:47:10,657 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:47:10,657 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:47:10,657 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 00:47:10,660 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:47:10,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1302549311, now seen corresponding path program 1 times [2023-01-28 00:47:10,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:47:10,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093710930] [2023-01-28 00:47:10,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:47:10,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:47:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:47:11,040 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 00:47:11,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:47:11,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093710930] [2023-01-28 00:47:11,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1093710930] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:47:11,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:47:11,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 00:47:11,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547466777] [2023-01-28 00:47:11,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:47:11,048 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 00:47:11,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:47:11,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 00:47:11,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 00:47:11,065 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 143 [2023-01-28 00:47:11,067 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 18 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 00:47:11,067 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:47:11,067 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 143 [2023-01-28 00:47:11,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:47:11,194 INFO L130 PetriNetUnfolder]: 354/584 cut-off events. [2023-01-28 00:47:11,195 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-01-28 00:47:11,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1205 conditions, 584 events. 354/584 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 2621 event pairs, 144 based on Foata normal form. 27/610 useless extension candidates. Maximal degree in co-relation 1194. Up to 400 conditions per place. [2023-01-28 00:47:11,202 INFO L137 encePairwiseOnDemand]: 136/143 looper letters, 23 selfloop transitions, 5 changer transitions 0/29 dead transitions. [2023-01-28 00:47:11,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 29 transitions, 129 flow [2023-01-28 00:47:11,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 00:47:11,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 00:47:11,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2023-01-28 00:47:11,213 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5687645687645687 [2023-01-28 00:47:11,214 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2023-01-28 00:47:11,214 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2023-01-28 00:47:11,215 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:47:11,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2023-01-28 00:47:11,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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 00:47:11,220 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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 00:47:11,221 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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 00:47:11,222 INFO L175 Difference]: Start difference. First operand has 27 places, 18 transitions, 45 flow. Second operand 3 states and 244 transitions. [2023-01-28 00:47:11,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 29 transitions, 129 flow [2023-01-28 00:47:11,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 29 transitions, 124 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 00:47:11,224 INFO L231 Difference]: Finished difference. Result has 27 places, 20 transitions, 69 flow [2023-01-28 00:47:11,226 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=40, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=69, PETRI_PLACES=27, PETRI_TRANSITIONS=20} [2023-01-28 00:47:11,228 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 0 predicate places. [2023-01-28 00:47:11,228 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 20 transitions, 69 flow [2023-01-28 00:47:11,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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 00:47:11,228 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:47:11,228 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:47:11,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 00:47:11,229 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 00:47:11,229 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:47:11,229 INFO L85 PathProgramCache]: Analyzing trace with hash 1724322363, now seen corresponding path program 1 times [2023-01-28 00:47:11,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:47:11,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730703620] [2023-01-28 00:47:11,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:47:11,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:47:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:47:11,387 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 00:47:11,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:47:11,387 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730703620] [2023-01-28 00:47:11,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730703620] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:47:11,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:47:11,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 00:47:11,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145420991] [2023-01-28 00:47:11,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:47:11,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 00:47:11,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:47:11,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 00:47:11,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-28 00:47:11,390 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 143 [2023-01-28 00:47:11,390 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 20 transitions, 69 flow. Second operand has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 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 00:47:11,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:47:11,390 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 143 [2023-01-28 00:47:11,390 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:47:11,467 INFO L130 PetriNetUnfolder]: 333/558 cut-off events. [2023-01-28 00:47:11,467 INFO L131 PetriNetUnfolder]: For 73/73 co-relation queries the response was YES. [2023-01-28 00:47:11,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1395 conditions, 558 events. 333/558 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2404 event pairs, 81 based on Foata normal form. 9/562 useless extension candidates. Maximal degree in co-relation 1384. Up to 271 conditions per place. [2023-01-28 00:47:11,471 INFO L137 encePairwiseOnDemand]: 137/143 looper letters, 24 selfloop transitions, 6 changer transitions 0/31 dead transitions. [2023-01-28 00:47:11,471 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 31 transitions, 156 flow [2023-01-28 00:47:11,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 00:47:11,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 00:47:11,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 314 transitions. [2023-01-28 00:47:11,475 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.548951048951049 [2023-01-28 00:47:11,476 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 314 transitions. [2023-01-28 00:47:11,476 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 314 transitions. [2023-01-28 00:47:11,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:47:11,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 314 transitions. [2023-01-28 00:47:11,478 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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 00:47:11,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 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 00:47:11,481 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 143.0) internal successors, (715), 5 states have internal predecessors, (715), 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 00:47:11,481 INFO L175 Difference]: Start difference. First operand has 27 places, 20 transitions, 69 flow. Second operand 4 states and 314 transitions. [2023-01-28 00:47:11,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 31 transitions, 156 flow [2023-01-28 00:47:11,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 31 transitions, 150 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 00:47:11,485 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 90 flow [2023-01-28 00:47:11,485 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=64, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=90, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2023-01-28 00:47:11,485 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 4 predicate places. [2023-01-28 00:47:11,486 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 90 flow [2023-01-28 00:47:11,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.25) internal successors, (293), 4 states have internal predecessors, (293), 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 00:47:11,486 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:47:11,486 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:47:11,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 00:47:11,486 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 00:47:11,487 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:47:11,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1724321650, now seen corresponding path program 1 times [2023-01-28 00:47:11,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:47:11,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1586247671] [2023-01-28 00:47:11,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:47:11,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:47:11,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:47:11,645 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 00:47:11,646 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:47:11,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1586247671] [2023-01-28 00:47:11,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1586247671] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:47:11,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:47:11,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 00:47:11,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120454448] [2023-01-28 00:47:11,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:47:11,646 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 00:47:11,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:47:11,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 00:47:11,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 00:47:11,647 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 143 [2023-01-28 00:47:11,648 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 90 flow. Second operand has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 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 00:47:11,648 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:47:11,648 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 143 [2023-01-28 00:47:11,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:47:11,730 INFO L130 PetriNetUnfolder]: 507/818 cut-off events. [2023-01-28 00:47:11,730 INFO L131 PetriNetUnfolder]: For 557/557 co-relation queries the response was YES. [2023-01-28 00:47:11,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2250 conditions, 818 events. 507/818 cut-off events. For 557/557 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3452 event pairs, 77 based on Foata normal form. 16/834 useless extension candidates. Maximal degree in co-relation 2236. Up to 272 conditions per place. [2023-01-28 00:47:11,733 INFO L137 encePairwiseOnDemand]: 136/143 looper letters, 38 selfloop transitions, 17 changer transitions 0/55 dead transitions. [2023-01-28 00:47:11,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 55 transitions, 329 flow [2023-01-28 00:47:11,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 00:47:11,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 00:47:11,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 396 transitions. [2023-01-28 00:47:11,735 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5538461538461539 [2023-01-28 00:47:11,735 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 396 transitions. [2023-01-28 00:47:11,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 396 transitions. [2023-01-28 00:47:11,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:47:11,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 396 transitions. [2023-01-28 00:47:11,736 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.2) internal successors, (396), 5 states have internal predecessors, (396), 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 00:47:11,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 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 00:47:11,738 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 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 00:47:11,738 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 90 flow. Second operand 5 states and 396 transitions. [2023-01-28 00:47:11,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 55 transitions, 329 flow [2023-01-28 00:47:11,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 55 transitions, 311 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 00:47:11,740 INFO L231 Difference]: Finished difference. Result has 37 places, 33 transitions, 225 flow [2023-01-28 00:47:11,740 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=81, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=225, PETRI_PLACES=37, PETRI_TRANSITIONS=33} [2023-01-28 00:47:11,740 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 10 predicate places. [2023-01-28 00:47:11,741 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 33 transitions, 225 flow [2023-01-28 00:47:11,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.25) internal successors, (285), 4 states have internal predecessors, (285), 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 00:47:11,741 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:47:11,741 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:47:11,741 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 00:47:11,741 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 00:47:11,742 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:47:11,742 INFO L85 PathProgramCache]: Analyzing trace with hash 1913238614, now seen corresponding path program 1 times [2023-01-28 00:47:11,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:47:11,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387777477] [2023-01-28 00:47:11,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:47:11,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:47:11,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:47:11,858 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 00:47:11,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:47:11,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387777477] [2023-01-28 00:47:11,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387777477] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:47:11,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:47:11,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 00:47:11,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701005026] [2023-01-28 00:47:11,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:47:11,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 00:47:11,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:47:11,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 00:47:11,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 00:47:11,862 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 143 [2023-01-28 00:47:11,862 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 33 transitions, 225 flow. Second operand has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 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 00:47:11,862 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:47:11,862 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 143 [2023-01-28 00:47:11,863 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:47:11,958 INFO L130 PetriNetUnfolder]: 539/888 cut-off events. [2023-01-28 00:47:11,958 INFO L131 PetriNetUnfolder]: For 1552/1552 co-relation queries the response was YES. [2023-01-28 00:47:11,960 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2994 conditions, 888 events. 539/888 cut-off events. For 1552/1552 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3887 event pairs, 171 based on Foata normal form. 36/924 useless extension candidates. Maximal degree in co-relation 2976. Up to 322 conditions per place. [2023-01-28 00:47:11,962 INFO L137 encePairwiseOnDemand]: 136/143 looper letters, 28 selfloop transitions, 8 changer transitions 16/52 dead transitions. [2023-01-28 00:47:11,962 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 52 transitions, 413 flow [2023-01-28 00:47:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 00:47:11,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 00:47:11,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 386 transitions. [2023-01-28 00:47:11,963 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5398601398601398 [2023-01-28 00:47:11,964 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 386 transitions. [2023-01-28 00:47:11,964 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 386 transitions. [2023-01-28 00:47:11,965 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:47:11,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 386 transitions. [2023-01-28 00:47:11,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 77.2) internal successors, (386), 5 states have internal predecessors, (386), 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 00:47:11,971 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 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 00:47:11,972 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 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 00:47:11,972 INFO L175 Difference]: Start difference. First operand has 37 places, 33 transitions, 225 flow. Second operand 5 states and 386 transitions. [2023-01-28 00:47:11,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 52 transitions, 413 flow [2023-01-28 00:47:11,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 52 transitions, 413 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 00:47:11,993 INFO L231 Difference]: Finished difference. Result has 43 places, 23 transitions, 164 flow [2023-01-28 00:47:11,993 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=225, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=164, PETRI_PLACES=43, PETRI_TRANSITIONS=23} [2023-01-28 00:47:11,994 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 16 predicate places. [2023-01-28 00:47:11,994 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 23 transitions, 164 flow [2023-01-28 00:47:11,994 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.0) internal successors, (355), 5 states have internal predecessors, (355), 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 00:47:11,994 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:47:11,994 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:47:11,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 00:47:11,995 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 00:47:11,995 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:47:11,995 INFO L85 PathProgramCache]: Analyzing trace with hash 32299563, now seen corresponding path program 1 times [2023-01-28 00:47:11,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:47:11,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339114821] [2023-01-28 00:47:11,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:47:11,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:47:12,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:47:12,110 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 00:47:12,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:47:12,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [339114821] [2023-01-28 00:47:12,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [339114821] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:47:12,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:47:12,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 00:47:12,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890882699] [2023-01-28 00:47:12,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:47:12,111 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 00:47:12,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:47:12,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 00:47:12,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 00:47:12,112 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 143 [2023-01-28 00:47:12,112 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 23 transitions, 164 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 00:47:12,112 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:47:12,112 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 143 [2023-01-28 00:47:12,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:47:12,150 INFO L130 PetriNetUnfolder]: 179/336 cut-off events. [2023-01-28 00:47:12,151 INFO L131 PetriNetUnfolder]: For 803/804 co-relation queries the response was YES. [2023-01-28 00:47:12,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1226 conditions, 336 events. 179/336 cut-off events. For 803/804 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1319 event pairs, 91 based on Foata normal form. 2/326 useless extension candidates. Maximal degree in co-relation 1204. Up to 272 conditions per place. [2023-01-28 00:47:12,152 INFO L137 encePairwiseOnDemand]: 139/143 looper letters, 22 selfloop transitions, 5 changer transitions 0/31 dead transitions. [2023-01-28 00:47:12,153 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 31 transitions, 248 flow [2023-01-28 00:47:12,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 00:47:12,153 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 00:47:12,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 251 transitions. [2023-01-28 00:47:12,154 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.585081585081585 [2023-01-28 00:47:12,154 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 251 transitions. [2023-01-28 00:47:12,154 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 251 transitions. [2023-01-28 00:47:12,154 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:47:12,154 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 251 transitions. [2023-01-28 00:47:12,154 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 00:47:12,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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 00:47:12,156 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 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 00:47:12,156 INFO L175 Difference]: Start difference. First operand has 43 places, 23 transitions, 164 flow. Second operand 3 states and 251 transitions. [2023-01-28 00:47:12,156 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 31 transitions, 248 flow [2023-01-28 00:47:12,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 31 transitions, 183 flow, removed 8 selfloop flow, removed 10 redundant places. [2023-01-28 00:47:12,159 INFO L231 Difference]: Finished difference. Result has 36 places, 24 transitions, 130 flow [2023-01-28 00:47:12,160 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=36, PETRI_TRANSITIONS=24} [2023-01-28 00:47:12,161 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 9 predicate places. [2023-01-28 00:47:12,161 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 24 transitions, 130 flow [2023-01-28 00:47:12,162 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 00:47:12,162 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:47:12,162 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:47:12,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 00:47:12,162 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 00:47:12,162 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:47:12,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1002518089, now seen corresponding path program 1 times [2023-01-28 00:47:12,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:47:12,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [49407959] [2023-01-28 00:47:12,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:47:12,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:47:12,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:47:12,286 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 00:47:12,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:47:12,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [49407959] [2023-01-28 00:47:12,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [49407959] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:47:12,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:47:12,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 00:47:12,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794181081] [2023-01-28 00:47:12,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:47:12,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 00:47:12,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:47:12,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 00:47:12,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 00:47:12,291 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 143 [2023-01-28 00:47:12,291 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 24 transitions, 130 flow. Second operand has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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 00:47:12,291 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:47:12,291 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 143 [2023-01-28 00:47:12,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:47:12,341 INFO L130 PetriNetUnfolder]: 166/323 cut-off events. [2023-01-28 00:47:12,342 INFO L131 PetriNetUnfolder]: For 444/471 co-relation queries the response was YES. [2023-01-28 00:47:12,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 955 conditions, 323 events. 166/323 cut-off events. For 444/471 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1402 event pairs, 39 based on Foata normal form. 23/329 useless extension candidates. Maximal degree in co-relation 939. Up to 184 conditions per place. [2023-01-28 00:47:12,343 INFO L137 encePairwiseOnDemand]: 137/143 looper letters, 34 selfloop transitions, 7 changer transitions 10/57 dead transitions. [2023-01-28 00:47:12,343 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 57 transitions, 395 flow [2023-01-28 00:47:12,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 00:47:12,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 00:47:12,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 399 transitions. [2023-01-28 00:47:12,345 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.558041958041958 [2023-01-28 00:47:12,345 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 399 transitions. [2023-01-28 00:47:12,345 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 399 transitions. [2023-01-28 00:47:12,345 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:47:12,345 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 399 transitions. [2023-01-28 00:47:12,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 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 00:47:12,347 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 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 00:47:12,347 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 143.0) internal successors, (858), 6 states have internal predecessors, (858), 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 00:47:12,347 INFO L175 Difference]: Start difference. First operand has 36 places, 24 transitions, 130 flow. Second operand 5 states and 399 transitions. [2023-01-28 00:47:12,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 57 transitions, 395 flow [2023-01-28 00:47:12,348 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 57 transitions, 368 flow, removed 4 selfloop flow, removed 2 redundant places. [2023-01-28 00:47:12,349 INFO L231 Difference]: Finished difference. Result has 41 places, 30 transitions, 173 flow [2023-01-28 00:47:12,349 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=173, PETRI_PLACES=41, PETRI_TRANSITIONS=30} [2023-01-28 00:47:12,350 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 14 predicate places. [2023-01-28 00:47:12,350 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 30 transitions, 173 flow [2023-01-28 00:47:12,351 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.75) internal successors, (299), 4 states have internal predecessors, (299), 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 00:47:12,351 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:47:12,351 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:47:12,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 00:47:12,352 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 00:47:12,352 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:47:12,352 INFO L85 PathProgramCache]: Analyzing trace with hash 579732821, now seen corresponding path program 1 times [2023-01-28 00:47:12,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:47:12,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621100920] [2023-01-28 00:47:12,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:47:12,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:47:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:47:12,450 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 00:47:12,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:47:12,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621100920] [2023-01-28 00:47:12,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621100920] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:47:12,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:47:12,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 00:47:12,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978811861] [2023-01-28 00:47:12,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:47:12,452 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 00:47:12,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:47:12,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 00:47:12,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 00:47:12,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 143 [2023-01-28 00:47:12,453 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 30 transitions, 173 flow. Second operand has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 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 00:47:12,453 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:47:12,453 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 143 [2023-01-28 00:47:12,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:47:12,542 INFO L130 PetriNetUnfolder]: 252/503 cut-off events. [2023-01-28 00:47:12,542 INFO L131 PetriNetUnfolder]: For 800/804 co-relation queries the response was YES. [2023-01-28 00:47:12,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1939 conditions, 503 events. 252/503 cut-off events. For 800/804 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2378 event pairs, 33 based on Foata normal form. 10/513 useless extension candidates. Maximal degree in co-relation 1920. Up to 254 conditions per place. [2023-01-28 00:47:12,544 INFO L137 encePairwiseOnDemand]: 136/143 looper letters, 36 selfloop transitions, 12 changer transitions 19/69 dead transitions. [2023-01-28 00:47:12,544 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 69 transitions, 495 flow [2023-01-28 00:47:12,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 00:47:12,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 00:47:12,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 460 transitions. [2023-01-28 00:47:12,545 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5361305361305362 [2023-01-28 00:47:12,545 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 460 transitions. [2023-01-28 00:47:12,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 460 transitions. [2023-01-28 00:47:12,546 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:47:12,546 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 460 transitions. [2023-01-28 00:47:12,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 76.66666666666667) internal successors, (460), 6 states have internal predecessors, (460), 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 00:47:12,548 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 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 00:47:12,548 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 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 00:47:12,548 INFO L175 Difference]: Start difference. First operand has 41 places, 30 transitions, 173 flow. Second operand 6 states and 460 transitions. [2023-01-28 00:47:12,548 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 69 transitions, 495 flow [2023-01-28 00:47:12,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 69 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 00:47:12,550 INFO L231 Difference]: Finished difference. Result has 47 places, 31 transitions, 212 flow [2023-01-28 00:47:12,551 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=212, PETRI_PLACES=47, PETRI_TRANSITIONS=31} [2023-01-28 00:47:12,551 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 20 predicate places. [2023-01-28 00:47:12,551 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 31 transitions, 212 flow [2023-01-28 00:47:12,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 71.6) internal successors, (358), 5 states have internal predecessors, (358), 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 00:47:12,551 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:47:12,551 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:47:12,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 00:47:12,552 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 00:47:12,552 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:47:12,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1487522671, now seen corresponding path program 1 times [2023-01-28 00:47:12,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:47:12,552 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877782519] [2023-01-28 00:47:12,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:47:12,552 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:47:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:47:12,636 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 00:47:12,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:47:12,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877782519] [2023-01-28 00:47:12,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877782519] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:47:12,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:47:12,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 00:47:12,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989269009] [2023-01-28 00:47:12,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:47:12,637 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 00:47:12,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:47:12,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 00:47:12,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-28 00:47:12,638 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 143 [2023-01-28 00:47:12,638 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 31 transitions, 212 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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 00:47:12,638 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:47:12,639 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 143 [2023-01-28 00:47:12,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:47:12,720 INFO L130 PetriNetUnfolder]: 139/295 cut-off events. [2023-01-28 00:47:12,720 INFO L131 PetriNetUnfolder]: For 746/802 co-relation queries the response was YES. [2023-01-28 00:47:12,721 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1137 conditions, 295 events. 139/295 cut-off events. For 746/802 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1327 event pairs, 14 based on Foata normal form. 28/308 useless extension candidates. Maximal degree in co-relation 1115. Up to 173 conditions per place. [2023-01-28 00:47:12,721 INFO L137 encePairwiseOnDemand]: 137/143 looper letters, 27 selfloop transitions, 7 changer transitions 23/63 dead transitions. [2023-01-28 00:47:12,721 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 63 transitions, 524 flow [2023-01-28 00:47:12,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-28 00:47:12,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-28 00:47:12,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 477 transitions. [2023-01-28 00:47:12,723 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5559440559440559 [2023-01-28 00:47:12,723 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 477 transitions. [2023-01-28 00:47:12,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 477 transitions. [2023-01-28 00:47:12,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:47:12,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 477 transitions. [2023-01-28 00:47:12,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.5) internal successors, (477), 6 states have internal predecessors, (477), 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 00:47:12,725 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 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 00:47:12,726 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 143.0) internal successors, (1001), 7 states have internal predecessors, (1001), 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 00:47:12,726 INFO L175 Difference]: Start difference. First operand has 47 places, 31 transitions, 212 flow. Second operand 6 states and 477 transitions. [2023-01-28 00:47:12,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 63 transitions, 524 flow [2023-01-28 00:47:12,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 63 transitions, 522 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-28 00:47:12,728 INFO L231 Difference]: Finished difference. Result has 52 places, 28 transitions, 209 flow [2023-01-28 00:47:12,728 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=210, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=209, PETRI_PLACES=52, PETRI_TRANSITIONS=28} [2023-01-28 00:47:12,729 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 25 predicate places. [2023-01-28 00:47:12,729 INFO L495 AbstractCegarLoop]: Abstraction has has 52 places, 28 transitions, 209 flow [2023-01-28 00:47:12,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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 00:47:12,729 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 00:47:12,729 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:47:12,729 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-28 00:47:12,729 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 00:47:12,730 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 00:47:12,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1660680286, now seen corresponding path program 1 times [2023-01-28 00:47:12,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 00:47:12,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461453631] [2023-01-28 00:47:12,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 00:47:12,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 00:47:12,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 00:47:12,820 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 00:47:12,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 00:47:12,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461453631] [2023-01-28 00:47:12,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461453631] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 00:47:12,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 00:47:12,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 00:47:12,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664930658] [2023-01-28 00:47:12,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 00:47:12,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-28 00:47:12,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 00:47:12,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-28 00:47:12,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-01-28 00:47:12,823 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 143 [2023-01-28 00:47:12,823 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 28 transitions, 209 flow. Second operand has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 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 00:47:12,823 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 00:47:12,823 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 143 [2023-01-28 00:47:12,823 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 00:47:12,898 INFO L130 PetriNetUnfolder]: 65/167 cut-off events. [2023-01-28 00:47:12,899 INFO L131 PetriNetUnfolder]: For 506/539 co-relation queries the response was YES. [2023-01-28 00:47:12,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 738 conditions, 167 events. 65/167 cut-off events. For 506/539 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 696 event pairs, 11 based on Foata normal form. 19/176 useless extension candidates. Maximal degree in co-relation 723. Up to 84 conditions per place. [2023-01-28 00:47:12,899 INFO L137 encePairwiseOnDemand]: 137/143 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2023-01-28 00:47:12,900 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 44 transitions, 373 flow [2023-01-28 00:47:12,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-28 00:47:12,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-28 00:47:12,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 539 transitions. [2023-01-28 00:47:12,901 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5384615384615384 [2023-01-28 00:47:12,901 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 539 transitions. [2023-01-28 00:47:12,901 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 539 transitions. [2023-01-28 00:47:12,902 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 00:47:12,902 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 539 transitions. [2023-01-28 00:47:12,903 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 77.0) internal successors, (539), 7 states have internal predecessors, (539), 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 00:47:12,904 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 143.0) internal successors, (1144), 8 states have internal predecessors, (1144), 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 00:47:12,904 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 143.0) internal successors, (1144), 8 states have internal predecessors, (1144), 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 00:47:12,904 INFO L175 Difference]: Start difference. First operand has 52 places, 28 transitions, 209 flow. Second operand 7 states and 539 transitions. [2023-01-28 00:47:12,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 44 transitions, 373 flow [2023-01-28 00:47:12,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 44 transitions, 310 flow, removed 14 selfloop flow, removed 8 redundant places. [2023-01-28 00:47:12,906 INFO L231 Difference]: Finished difference. Result has 47 places, 0 transitions, 0 flow [2023-01-28 00:47:12,906 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=143, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=47, PETRI_TRANSITIONS=0} [2023-01-28 00:47:12,906 INFO L281 CegarLoopForPetriNet]: 27 programPoint places, 20 predicate places. [2023-01-28 00:47:12,907 INFO L495 AbstractCegarLoop]: Abstraction has has 47 places, 0 transitions, 0 flow [2023-01-28 00:47:12,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 74.16666666666667) internal successors, (445), 6 states have internal predecessors, (445), 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 00:47:12,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 00:47:12,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 00:47:12,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-28 00:47:12,909 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-28 00:47:12,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-28 00:47:12,909 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 00:47:12,911 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 00:47:12,911 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 00:47:12,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 12:47:12 BasicIcfg [2023-01-28 00:47:12,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 00:47:12,914 INFO L158 Benchmark]: Toolchain (without parser) took 4794.97ms. Allocated memory was 494.9MB in the beginning and 595.6MB in the end (delta: 100.7MB). Free memory was 454.5MB in the beginning and 547.8MB in the end (delta: -93.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.0GB. [2023-01-28 00:47:12,914 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 320.9MB. Free memory is still 268.3MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:47:12,914 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.05ms. Allocated memory is still 494.9MB. Free memory was 453.9MB in the beginning and 433.9MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-28 00:47:12,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.90ms. Allocated memory is still 494.9MB. Free memory was 433.9MB in the beginning and 431.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 00:47:12,914 INFO L158 Benchmark]: Boogie Preprocessor took 26.76ms. Allocated memory is still 494.9MB. Free memory was 431.8MB in the beginning and 430.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 00:47:12,914 INFO L158 Benchmark]: RCFGBuilder took 310.15ms. Allocated memory is still 494.9MB. Free memory was 430.3MB in the beginning and 416.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-01-28 00:47:12,915 INFO L158 Benchmark]: TraceAbstraction took 4032.98ms. Allocated memory was 494.9MB in the beginning and 595.6MB in the end (delta: 100.7MB). Free memory was 415.6MB in the beginning and 547.8MB in the end (delta: -132.2MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 00:47:12,915 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 320.9MB. Free memory is still 268.3MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 375.05ms. Allocated memory is still 494.9MB. Free memory was 453.9MB in the beginning and 433.9MB in the end (delta: 20.0MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.90ms. Allocated memory is still 494.9MB. Free memory was 433.9MB in the beginning and 431.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 26.76ms. Allocated memory is still 494.9MB. Free memory was 431.8MB in the beginning and 430.3MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 310.15ms. Allocated memory is still 494.9MB. Free memory was 430.3MB in the beginning and 416.2MB in the end (delta: 14.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 4032.98ms. Allocated memory was 494.9MB in the beginning and 595.6MB in the end (delta: 100.7MB). Free memory was 415.6MB in the beginning and 547.8MB in the end (delta: -132.2MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 79 PlacesBefore, 27 PlacesAfterwards, 70 TransitionsBefore, 18 TransitionsAfterwards, 1044 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 58 TotalNumberOfCompositions, 2101 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1332, independent: 1249, independent conditional: 0, independent unconditional: 1249, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 581, independent: 558, independent conditional: 0, independent unconditional: 558, dependent: 23, dependent conditional: 0, dependent unconditional: 23, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1332, independent: 691, independent conditional: 0, independent unconditional: 691, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 581, unknown conditional: 0, unknown unconditional: 581] , Statistics on independence cache: Total cache size (in pairs): 52, Positive cache size: 45, Positive conditional cache size: 0, Positive unconditional cache size: 45, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 18]: 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 7 procedures, 108 locations, 4 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: 3.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 157 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 157 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 17 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 430 IncrementalHoareTripleChecker+Invalid, 447 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 17 mSolverCounterUnsat, 16 mSDtfsCounter, 430 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=225occurred in iteration=3, InterpolantAutomatonStates: 44, 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, 0.2s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 101 NumberOfCodeBlocks, 101 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 374 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-28 00:47:12,929 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...