/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:35:26,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:35:26,641 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:35:26,690 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 19:35:26,690 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 19:35:26,692 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 19:35:26,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 19:35:26,698 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 19:35:26,715 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 19:35:26,718 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 19:35:26,719 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 19:35:26,720 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 19:35:26,721 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:35:26,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:35:26,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:35:26,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:35:26,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:35:26,725 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:35:26,727 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:35:26,730 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:35:26,732 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:35:26,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:35:26,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:35:26,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:35:26,740 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 19:35:26,761 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:35:26,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:35:26,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:35:26,763 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 [2023-01-27 19:35:26,799 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:35:26,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:35:26,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:35:26,800 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:35:26,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:35:26,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:35:26,801 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:35:26,801 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:35:26,801 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:35:26,801 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:35:26,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:35:26,802 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:35:26,802 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:35:26,802 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:35:26,802 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:35:26,803 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:35:26,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:35:26,803 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:35:26,803 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:35:26,803 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:35:26,803 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:35:26,803 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:35:26,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:35:26,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:35:26,803 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:35:26,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:35:26,804 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:35:26,804 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:35:26,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:35:26,804 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:35:26,804 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:35:26,804 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:35:27,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:35:27,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:35:27,178 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:35:27,178 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:35:27,193 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:35:27,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-01-27 19:35:28,742 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:35:29,100 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:35:29,101 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-01-27 19:35:29,111 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fa49f5f8/df8b35a48e644bf18a2a537e39aa1389/FLAG1cb49f30d [2023-01-27 19:35:29,125 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2fa49f5f8/df8b35a48e644bf18a2a537e39aa1389 [2023-01-27 19:35:29,127 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:35:29,127 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:35:29,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:35:29,130 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:35:29,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:35:29,132 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:35:29" (1/1) ... [2023-01-27 19:35:29,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6047d796 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29, skipping insertion in model container [2023-01-27 19:35:29,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:35:29" (1/1) ... [2023-01-27 19:35:29,138 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:35:29,173 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:35:29,320 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-01-27 19:35:29,565 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:35:29,585 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:35:29,607 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i[1120,1133] [2023-01-27 19:35:29,662 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:35:29,718 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:35:29,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29 WrapperNode [2023-01-27 19:35:29,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:35:29,720 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:35:29,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:35:29,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:35:29,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29" (1/1) ... [2023-01-27 19:35:29,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29" (1/1) ... [2023-01-27 19:35:29,797 INFO L138 Inliner]: procedures = 165, calls = 42, calls flagged for inlining = 9, calls inlined = 11, statements flattened = 143 [2023-01-27 19:35:29,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:35:29,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:35:29,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:35:29,798 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:35:29,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29" (1/1) ... [2023-01-27 19:35:29,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29" (1/1) ... [2023-01-27 19:35:29,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29" (1/1) ... [2023-01-27 19:35:29,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29" (1/1) ... [2023-01-27 19:35:29,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29" (1/1) ... [2023-01-27 19:35:29,824 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29" (1/1) ... [2023-01-27 19:35:29,832 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29" (1/1) ... [2023-01-27 19:35:29,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29" (1/1) ... [2023-01-27 19:35:29,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:35:29,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:35:29,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:35:29,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:35:29,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29" (1/1) ... [2023-01-27 19:35:29,844 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:35:29,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:35:29,883 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) [2023-01-27 19:35:29,937 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 [2023-01-27 19:35:29,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:35:29,964 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:35:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:35:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:35:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-01-27 19:35:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-01-27 19:35:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:35:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:35:29,965 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:35:29,965 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:35:29,966 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 19:35:30,180 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:35:30,182 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:35:30,554 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:35:30,560 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:35:30,561 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-27 19:35:30,562 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:35:30 BoogieIcfgContainer [2023-01-27 19:35:30,562 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:35:30,564 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:35:30,564 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:35:30,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:35:30,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:35:29" (1/3) ... [2023-01-27 19:35:30,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2524989b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:35:30, skipping insertion in model container [2023-01-27 19:35:30,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:35:29" (2/3) ... [2023-01-27 19:35:30,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2524989b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:35:30, skipping insertion in model container [2023-01-27 19:35:30,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:35:30" (3/3) ... [2023-01-27 19:35:30,587 INFO L112 eAbstractionObserver]: Analyzing ICFG 36-apron_22-traces-write-centered-vs-meet-mutex_true_no-overflow.i [2023-01-27 19:35:30,620 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:35:30,620 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2023-01-27 19:35:30,620 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:35:30,784 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-27 19:35:30,847 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 161 places, 166 transitions, 337 flow [2023-01-27 19:35:30,981 INFO L130 PetriNetUnfolder]: 8/168 cut-off events. [2023-01-27 19:35:30,981 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:35:30,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 168 events. 8/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 148 event pairs, 0 based on Foata normal form. 0/156 useless extension candidates. Maximal degree in co-relation 121. Up to 2 conditions per place. [2023-01-27 19:35:30,988 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 166 transitions, 337 flow [2023-01-27 19:35:31,012 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 160 places, 164 transitions, 331 flow [2023-01-27 19:35:31,019 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:35:31,029 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 160 places, 164 transitions, 331 flow [2023-01-27 19:35:31,033 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 160 places, 164 transitions, 331 flow [2023-01-27 19:35:31,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 160 places, 164 transitions, 331 flow [2023-01-27 19:35:31,106 INFO L130 PetriNetUnfolder]: 8/164 cut-off events. [2023-01-27 19:35:31,106 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:35:31,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 164 events. 8/164 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 140 event pairs, 0 based on Foata normal form. 0/153 useless extension candidates. Maximal degree in co-relation 121. Up to 2 conditions per place. [2023-01-27 19:35:31,111 INFO L119 LiptonReduction]: Number of co-enabled transitions 6840 [2023-01-27 19:35:36,350 INFO L134 LiptonReduction]: Checked pairs total: 11483 [2023-01-27 19:35:36,350 INFO L136 LiptonReduction]: Total number of compositions: 172 [2023-01-27 19:35:36,371 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:35:36,377 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;@131e26e0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:35:36,377 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-01-27 19:35:36,387 INFO L130 PetriNetUnfolder]: 0/12 cut-off events. [2023-01-27 19:35:36,387 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:35:36,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:35:36,389 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-27 19:35:36,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-27 19:35:36,410 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:35:36,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1949425250, now seen corresponding path program 1 times [2023-01-27 19:35:36,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:35:36,432 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154435374] [2023-01-27 19:35:36,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:35:36,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:35:36,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:35:36,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:35:36,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:35:36,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154435374] [2023-01-27 19:35:36,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154435374] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:35:36,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:35:36,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 19:35:36,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [113180989] [2023-01-27 19:35:36,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:35:36,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-27 19:35:36,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:35:36,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-27 19:35:36,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-27 19:35:36,799 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 338 [2023-01-27 19:35:36,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 32 transitions, 67 flow. Second operand has 2 states, 2 states have (on average 158.0) internal successors, (316), 2 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:36,803 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:35:36,803 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 338 [2023-01-27 19:35:36,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:35:36,922 INFO L130 PetriNetUnfolder]: 113/275 cut-off events. [2023-01-27 19:35:36,922 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:35:36,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 520 conditions, 275 events. 113/275 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1100 event pairs, 104 based on Foata normal form. 0/231 useless extension candidates. Maximal degree in co-relation 511. Up to 241 conditions per place. [2023-01-27 19:35:36,938 INFO L137 encePairwiseOnDemand]: 336/338 looper letters, 20 selfloop transitions, 0 changer transitions 4/29 dead transitions. [2023-01-27 19:35:36,939 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 29 transitions, 109 flow [2023-01-27 19:35:36,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-27 19:35:36,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-27 19:35:36,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 336 transitions. [2023-01-27 19:35:36,954 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4970414201183432 [2023-01-27 19:35:36,955 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 336 transitions. [2023-01-27 19:35:36,955 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 336 transitions. [2023-01-27 19:35:36,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:35:36,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 336 transitions. [2023-01-27 19:35:36,976 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 168.0) internal successors, (336), 2 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:36,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:36,980 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 338.0) internal successors, (1014), 3 states have internal predecessors, (1014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:36,981 INFO L175 Difference]: Start difference. First operand has 33 places, 32 transitions, 67 flow. Second operand 2 states and 336 transitions. [2023-01-27 19:35:36,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 29 transitions, 109 flow [2023-01-27 19:35:36,983 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 29 transitions, 108 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 19:35:36,983 INFO L231 Difference]: Finished difference. Result has 32 places, 25 transitions, 52 flow [2023-01-27 19:35:36,988 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=52, PETRI_PLACES=32, PETRI_TRANSITIONS=25} [2023-01-27 19:35:37,005 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2023-01-27 19:35:37,005 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 25 transitions, 52 flow [2023-01-27 19:35:37,006 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 158.0) internal successors, (316), 2 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:37,006 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:35:37,006 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-27 19:35:37,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:35:37,006 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-27 19:35:37,012 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:35:37,012 INFO L85 PathProgramCache]: Analyzing trace with hash 1949297308, now seen corresponding path program 1 times [2023-01-27 19:35:37,012 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:35:37,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261997236] [2023-01-27 19:35:37,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:35:37,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:35:37,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:35:37,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:35:37,343 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:35:37,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261997236] [2023-01-27 19:35:37,343 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261997236] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:35:37,343 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:35:37,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 19:35:37,344 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745164866] [2023-01-27 19:35:37,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:35:37,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-27 19:35:37,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:35:37,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-27 19:35:37,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-27 19:35:37,362 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 141 out of 338 [2023-01-27 19:35:37,366 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 25 transitions, 52 flow. Second operand has 4 states, 4 states have (on average 142.5) internal successors, (570), 4 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:37,366 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:35:37,366 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 141 of 338 [2023-01-27 19:35:37,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:35:37,489 INFO L130 PetriNetUnfolder]: 83/229 cut-off events. [2023-01-27 19:35:37,489 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:35:37,490 INFO L83 FinitePrefix]: Finished finitePrefix Result has 421 conditions, 229 events. 83/229 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 871 event pairs, 8 based on Foata normal form. 0/211 useless extension candidates. Maximal degree in co-relation 418. Up to 126 conditions per place. [2023-01-27 19:35:37,491 INFO L137 encePairwiseOnDemand]: 333/338 looper letters, 34 selfloop transitions, 5 changer transitions 0/44 dead transitions. [2023-01-27 19:35:37,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 44 transitions, 168 flow [2023-01-27 19:35:37,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 19:35:37,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 19:35:37,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 746 transitions. [2023-01-27 19:35:37,494 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4414201183431953 [2023-01-27 19:35:37,494 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 746 transitions. [2023-01-27 19:35:37,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 746 transitions. [2023-01-27 19:35:37,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:35:37,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 746 transitions. [2023-01-27 19:35:37,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 149.2) internal successors, (746), 5 states have internal predecessors, (746), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:37,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:37,500 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:37,500 INFO L175 Difference]: Start difference. First operand has 32 places, 25 transitions, 52 flow. Second operand 5 states and 746 transitions. [2023-01-27 19:35:37,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 44 transitions, 168 flow [2023-01-27 19:35:37,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 44 transitions, 168 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-27 19:35:37,502 INFO L231 Difference]: Finished difference. Result has 36 places, 28 transitions, 83 flow [2023-01-27 19:35:37,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=52, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=83, PETRI_PLACES=36, PETRI_TRANSITIONS=28} [2023-01-27 19:35:37,502 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 3 predicate places. [2023-01-27 19:35:37,502 INFO L495 AbstractCegarLoop]: Abstraction has has 36 places, 28 transitions, 83 flow [2023-01-27 19:35:37,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 142.5) internal successors, (570), 4 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:37,503 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:35:37,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:35:37,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-27 19:35:37,517 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-27 19:35:37,517 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:35:37,517 INFO L85 PathProgramCache]: Analyzing trace with hash 668944993, now seen corresponding path program 1 times [2023-01-27 19:35:37,517 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:35:37,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553835338] [2023-01-27 19:35:37,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:35:37,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:35:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:35:37,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:35:37,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:35:37,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553835338] [2023-01-27 19:35:37,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553835338] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:35:37,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:35:37,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 19:35:37,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705346053] [2023-01-27 19:35:37,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:35:37,690 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 19:35:37,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:35:37,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 19:35:37,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 19:35:37,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 338 [2023-01-27 19:35:37,694 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 28 transitions, 83 flow. Second operand has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:37,694 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:35:37,694 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 338 [2023-01-27 19:35:37,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:35:37,869 INFO L130 PetriNetUnfolder]: 94/257 cut-off events. [2023-01-27 19:35:37,869 INFO L131 PetriNetUnfolder]: For 48/48 co-relation queries the response was YES. [2023-01-27 19:35:37,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 551 conditions, 257 events. 94/257 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1059 event pairs, 32 based on Foata normal form. 0/245 useless extension candidates. Maximal degree in co-relation 544. Up to 120 conditions per place. [2023-01-27 19:35:37,870 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 40 selfloop transitions, 9 changer transitions 0/54 dead transitions. [2023-01-27 19:35:37,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 54 transitions, 240 flow [2023-01-27 19:35:37,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-27 19:35:37,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-27 19:35:37,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1172 transitions. [2023-01-27 19:35:37,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4334319526627219 [2023-01-27 19:35:37,874 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1172 transitions. [2023-01-27 19:35:37,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1172 transitions. [2023-01-27 19:35:37,874 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:35:37,874 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1172 transitions. [2023-01-27 19:35:37,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 146.5) internal successors, (1172), 8 states have internal predecessors, (1172), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:37,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:37,881 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:37,881 INFO L175 Difference]: Start difference. First operand has 36 places, 28 transitions, 83 flow. Second operand 8 states and 1172 transitions. [2023-01-27 19:35:37,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 54 transitions, 240 flow [2023-01-27 19:35:37,891 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 54 transitions, 236 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 19:35:37,892 INFO L231 Difference]: Finished difference. Result has 45 places, 32 transitions, 126 flow [2023-01-27 19:35:37,892 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=126, PETRI_PLACES=45, PETRI_TRANSITIONS=32} [2023-01-27 19:35:37,893 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 12 predicate places. [2023-01-27 19:35:37,893 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 32 transitions, 126 flow [2023-01-27 19:35:37,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 141.6) internal successors, (708), 5 states have internal predecessors, (708), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:37,893 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:35:37,894 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:35:37,894 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-27 19:35:37,894 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-27 19:35:37,909 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:35:37,909 INFO L85 PathProgramCache]: Analyzing trace with hash 1660388124, now seen corresponding path program 1 times [2023-01-27 19:35:37,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:35:37,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713668417] [2023-01-27 19:35:37,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:35:37,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:35:37,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:35:38,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:35:38,026 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:35:38,026 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713668417] [2023-01-27 19:35:38,026 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713668417] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:35:38,026 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:35:38,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 19:35:38,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886688511] [2023-01-27 19:35:38,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:35:38,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 19:35:38,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:35:38,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 19:35:38,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 19:35:38,029 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 338 [2023-01-27 19:35:38,030 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 32 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:38,030 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:35:38,030 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 338 [2023-01-27 19:35:38,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:35:38,140 INFO L130 PetriNetUnfolder]: 102/265 cut-off events. [2023-01-27 19:35:38,140 INFO L131 PetriNetUnfolder]: For 110/110 co-relation queries the response was YES. [2023-01-27 19:35:38,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 644 conditions, 265 events. 102/265 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1040 event pairs, 37 based on Foata normal form. 15/280 useless extension candidates. Maximal degree in co-relation 634. Up to 151 conditions per place. [2023-01-27 19:35:38,142 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 34 selfloop transitions, 8 changer transitions 0/43 dead transitions. [2023-01-27 19:35:38,142 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 43 transitions, 233 flow [2023-01-27 19:35:38,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 19:35:38,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 19:35:38,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 446 transitions. [2023-01-27 19:35:38,143 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43984220907297833 [2023-01-27 19:35:38,143 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 446 transitions. [2023-01-27 19:35:38,143 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 446 transitions. [2023-01-27 19:35:38,144 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:35:38,144 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 446 transitions. [2023-01-27 19:35:38,145 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 148.66666666666666) internal successors, (446), 3 states have internal predecessors, (446), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:38,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:38,147 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 338.0) internal successors, (1352), 4 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:38,147 INFO L175 Difference]: Start difference. First operand has 45 places, 32 transitions, 126 flow. Second operand 3 states and 446 transitions. [2023-01-27 19:35:38,160 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 43 transitions, 233 flow [2023-01-27 19:35:38,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 43 transitions, 211 flow, removed 6 selfloop flow, removed 5 redundant places. [2023-01-27 19:35:38,167 INFO L231 Difference]: Finished difference. Result has 42 places, 32 transitions, 127 flow [2023-01-27 19:35:38,168 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=127, PETRI_PLACES=42, PETRI_TRANSITIONS=32} [2023-01-27 19:35:38,169 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 9 predicate places. [2023-01-27 19:35:38,169 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 32 transitions, 127 flow [2023-01-27 19:35:38,170 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:38,170 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:35:38,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:35:38,170 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-27 19:35:38,170 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-27 19:35:38,170 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:35:38,171 INFO L85 PathProgramCache]: Analyzing trace with hash -1388907553, now seen corresponding path program 1 times [2023-01-27 19:35:38,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:35:38,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179245889] [2023-01-27 19:35:38,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:35:38,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:35:38,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:35:38,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:35:38,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:35:38,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179245889] [2023-01-27 19:35:38,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179245889] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:35:38,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:35:38,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 19:35:38,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787857968] [2023-01-27 19:35:38,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:35:38,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 19:35:38,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:35:38,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 19:35:38,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-01-27 19:35:38,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 338 [2023-01-27 19:35:38,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 32 transitions, 127 flow. Second operand has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:38,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:35:38,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 338 [2023-01-27 19:35:38,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:35:38,592 INFO L130 PetriNetUnfolder]: 63/212 cut-off events. [2023-01-27 19:35:38,592 INFO L131 PetriNetUnfolder]: For 46/46 co-relation queries the response was YES. [2023-01-27 19:35:38,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 212 events. 63/212 cut-off events. For 46/46 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 912 event pairs, 31 based on Foata normal form. 10/217 useless extension candidates. Maximal degree in co-relation 554. Up to 110 conditions per place. [2023-01-27 19:35:38,594 INFO L137 encePairwiseOnDemand]: 330/338 looper letters, 41 selfloop transitions, 10 changer transitions 1/57 dead transitions. [2023-01-27 19:35:38,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 57 transitions, 311 flow [2023-01-27 19:35:38,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-27 19:35:38,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-27 19:35:38,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1124 transitions. [2023-01-27 19:35:38,597 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4156804733727811 [2023-01-27 19:35:38,597 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1124 transitions. [2023-01-27 19:35:38,597 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1124 transitions. [2023-01-27 19:35:38,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:35:38,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1124 transitions. [2023-01-27 19:35:38,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 140.5) internal successors, (1124), 8 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:38,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:38,617 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:38,617 INFO L175 Difference]: Start difference. First operand has 42 places, 32 transitions, 127 flow. Second operand 8 states and 1124 transitions. [2023-01-27 19:35:38,617 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 57 transitions, 311 flow [2023-01-27 19:35:38,620 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 57 transitions, 297 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-27 19:35:38,622 INFO L231 Difference]: Finished difference. Result has 51 places, 38 transitions, 178 flow [2023-01-27 19:35:38,622 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=178, PETRI_PLACES=51, PETRI_TRANSITIONS=38} [2023-01-27 19:35:38,623 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 18 predicate places. [2023-01-27 19:35:38,623 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 38 transitions, 178 flow [2023-01-27 19:35:38,624 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 135.66666666666666) internal successors, (814), 6 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:38,624 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:35:38,624 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:35:38,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-27 19:35:38,624 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-27 19:35:38,624 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:35:38,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1288531683, now seen corresponding path program 1 times [2023-01-27 19:35:38,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:35:38,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765757033] [2023-01-27 19:35:38,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:35:38,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:35:38,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:35:38,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:35:38,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:35:38,878 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765757033] [2023-01-27 19:35:38,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765757033] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:35:38,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:35:38,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 19:35:38,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414291097] [2023-01-27 19:35:38,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:35:38,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 19:35:38,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:35:38,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 19:35:38,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 19:35:38,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 338 [2023-01-27 19:35:38,884 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 38 transitions, 178 flow. Second operand has 5 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:38,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:35:38,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 338 [2023-01-27 19:35:38,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:35:39,035 INFO L130 PetriNetUnfolder]: 62/211 cut-off events. [2023-01-27 19:35:39,035 INFO L131 PetriNetUnfolder]: For 140/142 co-relation queries the response was YES. [2023-01-27 19:35:39,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 614 conditions, 211 events. 62/211 cut-off events. For 140/142 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 914 event pairs, 29 based on Foata normal form. 1/209 useless extension candidates. Maximal degree in co-relation 601. Up to 116 conditions per place. [2023-01-27 19:35:39,036 INFO L137 encePairwiseOnDemand]: 333/338 looper letters, 39 selfloop transitions, 8 changer transitions 0/54 dead transitions. [2023-01-27 19:35:39,036 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 54 transitions, 335 flow [2023-01-27 19:35:39,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-27 19:35:39,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-27 19:35:39,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 716 transitions. [2023-01-27 19:35:39,038 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4236686390532544 [2023-01-27 19:35:39,038 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 716 transitions. [2023-01-27 19:35:39,039 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 716 transitions. [2023-01-27 19:35:39,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:35:39,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 716 transitions. [2023-01-27 19:35:39,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 143.2) internal successors, (716), 5 states have internal predecessors, (716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,043 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 338.0) internal successors, (2028), 6 states have internal predecessors, (2028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,043 INFO L175 Difference]: Start difference. First operand has 51 places, 38 transitions, 178 flow. Second operand 5 states and 716 transitions. [2023-01-27 19:35:39,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 54 transitions, 335 flow [2023-01-27 19:35:39,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 54 transitions, 329 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-27 19:35:39,046 INFO L231 Difference]: Finished difference. Result has 55 places, 40 transitions, 204 flow [2023-01-27 19:35:39,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=204, PETRI_PLACES=55, PETRI_TRANSITIONS=40} [2023-01-27 19:35:39,062 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 22 predicate places. [2023-01-27 19:35:39,062 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 40 transitions, 204 flow [2023-01-27 19:35:39,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 137.2) internal successors, (686), 5 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:35:39,063 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:35:39,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-27 19:35:39,063 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-27 19:35:39,063 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:35:39,064 INFO L85 PathProgramCache]: Analyzing trace with hash 344959075, now seen corresponding path program 1 times [2023-01-27 19:35:39,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:35:39,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020814884] [2023-01-27 19:35:39,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:35:39,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:35:39,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:35:39,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:35:39,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:35:39,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020814884] [2023-01-27 19:35:39,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020814884] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:35:39,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:35:39,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-27 19:35:39,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419496470] [2023-01-27 19:35:39,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:35:39,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 19:35:39,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:35:39,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 19:35:39,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-01-27 19:35:39,199 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 140 out of 338 [2023-01-27 19:35:39,200 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 40 transitions, 204 flow. Second operand has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,200 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:35:39,200 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 140 of 338 [2023-01-27 19:35:39,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:35:39,325 INFO L130 PetriNetUnfolder]: 58/197 cut-off events. [2023-01-27 19:35:39,325 INFO L131 PetriNetUnfolder]: For 141/141 co-relation queries the response was YES. [2023-01-27 19:35:39,325 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 197 events. 58/197 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 828 event pairs, 32 based on Foata normal form. 5/198 useless extension candidates. Maximal degree in co-relation 601. Up to 109 conditions per place. [2023-01-27 19:35:39,326 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 40 selfloop transitions, 10 changer transitions 1/56 dead transitions. [2023-01-27 19:35:39,326 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 56 transitions, 374 flow [2023-01-27 19:35:39,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 19:35:39,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 19:35:39,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1028 transitions. [2023-01-27 19:35:39,329 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4344885883347422 [2023-01-27 19:35:39,329 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1028 transitions. [2023-01-27 19:35:39,329 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1028 transitions. [2023-01-27 19:35:39,329 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:35:39,329 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1028 transitions. [2023-01-27 19:35:39,330 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 146.85714285714286) internal successors, (1028), 7 states have internal predecessors, (1028), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,333 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,333 INFO L175 Difference]: Start difference. First operand has 55 places, 40 transitions, 204 flow. Second operand 7 states and 1028 transitions. [2023-01-27 19:35:39,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 56 transitions, 374 flow [2023-01-27 19:35:39,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 56 transitions, 359 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-01-27 19:35:39,336 INFO L231 Difference]: Finished difference. Result has 62 places, 43 transitions, 247 flow [2023-01-27 19:35:39,336 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=247, PETRI_PLACES=62, PETRI_TRANSITIONS=43} [2023-01-27 19:35:39,337 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 29 predicate places. [2023-01-27 19:35:39,337 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 43 transitions, 247 flow [2023-01-27 19:35:39,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 142.6) internal successors, (713), 5 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,337 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:35:39,337 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:35:39,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-27 19:35:39,337 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-27 19:35:39,338 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:35:39,338 INFO L85 PathProgramCache]: Analyzing trace with hash 1328339176, now seen corresponding path program 1 times [2023-01-27 19:35:39,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:35:39,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568054037] [2023-01-27 19:35:39,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:35:39,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:35:39,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:35:39,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:35:39,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:35:39,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568054037] [2023-01-27 19:35:39,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568054037] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:35:39,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:35:39,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-27 19:35:39,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199430078] [2023-01-27 19:35:39,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:35:39,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 19:35:39,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:35:39,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 19:35:39,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-01-27 19:35:39,642 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 338 [2023-01-27 19:35:39,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 43 transitions, 247 flow. Second operand has 6 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:35:39,643 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 338 [2023-01-27 19:35:39,643 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:35:39,734 INFO L130 PetriNetUnfolder]: 76/218 cut-off events. [2023-01-27 19:35:39,734 INFO L131 PetriNetUnfolder]: For 253/253 co-relation queries the response was YES. [2023-01-27 19:35:39,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 749 conditions, 218 events. 76/218 cut-off events. For 253/253 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 846 event pairs, 25 based on Foata normal form. 4/222 useless extension candidates. Maximal degree in co-relation 730. Up to 117 conditions per place. [2023-01-27 19:35:39,735 INFO L137 encePairwiseOnDemand]: 333/338 looper letters, 41 selfloop transitions, 8 changer transitions 3/55 dead transitions. [2023-01-27 19:35:39,736 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 55 transitions, 415 flow [2023-01-27 19:35:39,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 19:35:39,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 19:35:39,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 527 transitions. [2023-01-27 19:35:39,737 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.38979289940828404 [2023-01-27 19:35:39,737 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 527 transitions. [2023-01-27 19:35:39,737 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 527 transitions. [2023-01-27 19:35:39,737 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:35:39,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 527 transitions. [2023-01-27 19:35:39,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 131.75) internal successors, (527), 4 states have internal predecessors, (527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,740 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,740 INFO L175 Difference]: Start difference. First operand has 62 places, 43 transitions, 247 flow. Second operand 4 states and 527 transitions. [2023-01-27 19:35:39,740 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 55 transitions, 415 flow [2023-01-27 19:35:39,747 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 55 transitions, 403 flow, removed 1 selfloop flow, removed 3 redundant places. [2023-01-27 19:35:39,756 INFO L231 Difference]: Finished difference. Result has 62 places, 41 transitions, 243 flow [2023-01-27 19:35:39,757 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=243, PETRI_PLACES=62, PETRI_TRANSITIONS=41} [2023-01-27 19:35:39,758 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 29 predicate places. [2023-01-27 19:35:39,758 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 41 transitions, 243 flow [2023-01-27 19:35:39,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 125.16666666666667) internal successors, (751), 6 states have internal predecessors, (751), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,759 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:35:39,759 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:35:39,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-01-27 19:35:39,759 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-27 19:35:39,759 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:35:39,759 INFO L85 PathProgramCache]: Analyzing trace with hash -1671539549, now seen corresponding path program 1 times [2023-01-27 19:35:39,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:35:39,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [684358903] [2023-01-27 19:35:39,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:35:39,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:35:39,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:35:39,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:35:39,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:35:39,941 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [684358903] [2023-01-27 19:35:39,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [684358903] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:35:39,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:35:39,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-01-27 19:35:39,941 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412264589] [2023-01-27 19:35:39,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:35:39,942 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-01-27 19:35:39,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:35:39,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-01-27 19:35:39,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-01-27 19:35:39,943 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 338 [2023-01-27 19:35:39,943 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 41 transitions, 243 flow. Second operand has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:39,944 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:35:39,944 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 338 [2023-01-27 19:35:39,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:35:40,073 INFO L130 PetriNetUnfolder]: 46/163 cut-off events. [2023-01-27 19:35:40,073 INFO L131 PetriNetUnfolder]: For 188/188 co-relation queries the response was YES. [2023-01-27 19:35:40,073 INFO L83 FinitePrefix]: Finished finitePrefix Result has 575 conditions, 163 events. 46/163 cut-off events. For 188/188 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 608 event pairs, 7 based on Foata normal form. 6/168 useless extension candidates. Maximal degree in co-relation 556. Up to 58 conditions per place. [2023-01-27 19:35:40,074 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 36 selfloop transitions, 8 changer transitions 1/53 dead transitions. [2023-01-27 19:35:40,074 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 53 transitions, 389 flow [2023-01-27 19:35:40,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-01-27 19:35:40,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2023-01-27 19:35:40,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1087 transitions. [2023-01-27 19:35:40,077 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.40199704142011833 [2023-01-27 19:35:40,078 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1087 transitions. [2023-01-27 19:35:40,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1087 transitions. [2023-01-27 19:35:40,078 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:35:40,078 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1087 transitions. [2023-01-27 19:35:40,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 135.875) internal successors, (1087), 8 states have internal predecessors, (1087), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,084 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 338.0) internal successors, (3042), 9 states have internal predecessors, (3042), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,084 INFO L175 Difference]: Start difference. First operand has 62 places, 41 transitions, 243 flow. Second operand 8 states and 1087 transitions. [2023-01-27 19:35:40,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 53 transitions, 389 flow [2023-01-27 19:35:40,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 53 transitions, 373 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-27 19:35:40,086 INFO L231 Difference]: Finished difference. Result has 63 places, 40 transitions, 239 flow [2023-01-27 19:35:40,086 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=239, PETRI_PLACES=63, PETRI_TRANSITIONS=40} [2023-01-27 19:35:40,087 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 30 predicate places. [2023-01-27 19:35:40,087 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 40 transitions, 239 flow [2023-01-27 19:35:40,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 133.0) internal successors, (798), 6 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,088 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:35:40,088 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:35:40,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-01-27 19:35:40,088 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-27 19:35:40,088 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:35:40,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1411106432, now seen corresponding path program 1 times [2023-01-27 19:35:40,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:35:40,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615660817] [2023-01-27 19:35:40,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:35:40,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:35:40,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:35:40,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:35:40,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:35:40,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615660817] [2023-01-27 19:35:40,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615660817] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:35:40,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:35:40,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-01-27 19:35:40,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [371346941] [2023-01-27 19:35:40,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:35:40,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 19:35:40,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:35:40,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 19:35:40,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-01-27 19:35:40,360 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 338 [2023-01-27 19:35:40,361 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 40 transitions, 239 flow. Second operand has 7 states, 7 states have (on average 132.0) internal successors, (924), 7 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,361 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:35:40,361 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 338 [2023-01-27 19:35:40,361 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:35:40,558 INFO L130 PetriNetUnfolder]: 42/153 cut-off events. [2023-01-27 19:35:40,558 INFO L131 PetriNetUnfolder]: For 201/201 co-relation queries the response was YES. [2023-01-27 19:35:40,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 542 conditions, 153 events. 42/153 cut-off events. For 201/201 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 542 event pairs, 7 based on Foata normal form. 6/158 useless extension candidates. Maximal degree in co-relation 524. Up to 40 conditions per place. [2023-01-27 19:35:40,559 INFO L137 encePairwiseOnDemand]: 331/338 looper letters, 38 selfloop transitions, 11 changer transitions 2/59 dead transitions. [2023-01-27 19:35:40,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 59 transitions, 427 flow [2023-01-27 19:35:40,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-27 19:35:40,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-27 19:35:40,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1605 transitions. [2023-01-27 19:35:40,563 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39571005917159763 [2023-01-27 19:35:40,563 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1605 transitions. [2023-01-27 19:35:40,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1605 transitions. [2023-01-27 19:35:40,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:35:40,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1605 transitions. [2023-01-27 19:35:40,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 133.75) internal successors, (1605), 12 states have internal predecessors, (1605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 338.0) internal successors, (4394), 13 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,570 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 338.0) internal successors, (4394), 13 states have internal predecessors, (4394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,570 INFO L175 Difference]: Start difference. First operand has 63 places, 40 transitions, 239 flow. Second operand 12 states and 1605 transitions. [2023-01-27 19:35:40,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 59 transitions, 427 flow [2023-01-27 19:35:40,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 59 transitions, 399 flow, removed 2 selfloop flow, removed 8 redundant places. [2023-01-27 19:35:40,573 INFO L231 Difference]: Finished difference. Result has 65 places, 40 transitions, 234 flow [2023-01-27 19:35:40,573 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=234, PETRI_PLACES=65, PETRI_TRANSITIONS=40} [2023-01-27 19:35:40,574 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 32 predicate places. [2023-01-27 19:35:40,574 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 40 transitions, 234 flow [2023-01-27 19:35:40,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 132.0) internal successors, (924), 7 states have internal predecessors, (924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:35:40,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:35:40,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-01-27 19:35:40,575 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-27 19:35:40,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:35:40,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1136432958, now seen corresponding path program 1 times [2023-01-27 19:35:40,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:35:40,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909442533] [2023-01-27 19:35:40,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:35:40,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:35:40,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:35:40,779 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:35:40,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:35:40,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909442533] [2023-01-27 19:35:40,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909442533] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:35:40,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:35:40,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 19:35:40,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269594743] [2023-01-27 19:35:40,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:35:40,780 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 19:35:40,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:35:40,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 19:35:40,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-01-27 19:35:40,781 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 338 [2023-01-27 19:35:40,782 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 40 transitions, 234 flow. Second operand has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:35:40,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 338 [2023-01-27 19:35:40,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:35:40,900 INFO L130 PetriNetUnfolder]: 41/153 cut-off events. [2023-01-27 19:35:40,901 INFO L131 PetriNetUnfolder]: For 187/187 co-relation queries the response was YES. [2023-01-27 19:35:40,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 153 events. 41/153 cut-off events. For 187/187 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 536 event pairs, 18 based on Foata normal form. 3/154 useless extension candidates. Maximal degree in co-relation 518. Up to 57 conditions per place. [2023-01-27 19:35:40,902 INFO L137 encePairwiseOnDemand]: 332/338 looper letters, 32 selfloop transitions, 13 changer transitions 5/55 dead transitions. [2023-01-27 19:35:40,902 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 55 transitions, 397 flow [2023-01-27 19:35:40,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-01-27 19:35:40,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2023-01-27 19:35:40,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 948 transitions. [2023-01-27 19:35:40,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.400676246830093 [2023-01-27 19:35:40,904 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 948 transitions. [2023-01-27 19:35:40,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 948 transitions. [2023-01-27 19:35:40,905 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:35:40,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 948 transitions. [2023-01-27 19:35:40,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.42857142857142) internal successors, (948), 7 states have internal predecessors, (948), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,909 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 338.0) internal successors, (2704), 8 states have internal predecessors, (2704), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,909 INFO L175 Difference]: Start difference. First operand has 65 places, 40 transitions, 234 flow. Second operand 7 states and 948 transitions. [2023-01-27 19:35:40,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 55 transitions, 397 flow [2023-01-27 19:35:40,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 55 transitions, 372 flow, removed 1 selfloop flow, removed 8 redundant places. [2023-01-27 19:35:40,918 INFO L231 Difference]: Finished difference. Result has 64 places, 39 transitions, 240 flow [2023-01-27 19:35:40,918 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=240, PETRI_PLACES=64, PETRI_TRANSITIONS=39} [2023-01-27 19:35:40,918 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 31 predicate places. [2023-01-27 19:35:40,919 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 39 transitions, 240 flow [2023-01-27 19:35:40,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 132.4) internal successors, (662), 5 states have internal predecessors, (662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:40,919 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:35:40,919 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:35:40,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-01-27 19:35:40,919 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting t_funErr2ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (and 4 more)] === [2023-01-27 19:35:40,919 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:35:40,920 INFO L85 PathProgramCache]: Analyzing trace with hash -2044695278, now seen corresponding path program 1 times [2023-01-27 19:35:40,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:35:40,920 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [763856475] [2023-01-27 19:35:40,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:35:40,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:35:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:35:41,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:35:41,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:35:41,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [763856475] [2023-01-27 19:35:41,240 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [763856475] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:35:41,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:35:41,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-27 19:35:41,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422524359] [2023-01-27 19:35:41,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:35:41,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-27 19:35:41,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:35:41,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-27 19:35:41,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-01-27 19:35:41,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 123 out of 338 [2023-01-27 19:35:41,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 39 transitions, 240 flow. Second operand has 5 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:41,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:35:41,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 123 of 338 [2023-01-27 19:35:41,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:35:41,300 INFO L130 PetriNetUnfolder]: 24/98 cut-off events. [2023-01-27 19:35:41,300 INFO L131 PetriNetUnfolder]: For 154/154 co-relation queries the response was YES. [2023-01-27 19:35:41,301 INFO L83 FinitePrefix]: Finished finitePrefix Result has 363 conditions, 98 events. 24/98 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 284 event pairs, 10 based on Foata normal form. 15/113 useless extension candidates. Maximal degree in co-relation 348. Up to 84 conditions per place. [2023-01-27 19:35:41,301 INFO L137 encePairwiseOnDemand]: 335/338 looper letters, 0 selfloop transitions, 0 changer transitions 43/43 dead transitions. [2023-01-27 19:35:41,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 43 transitions, 322 flow [2023-01-27 19:35:41,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-27 19:35:41,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-27 19:35:41,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 522 transitions. [2023-01-27 19:35:41,303 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.386094674556213 [2023-01-27 19:35:41,303 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 522 transitions. [2023-01-27 19:35:41,303 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 522 transitions. [2023-01-27 19:35:41,303 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:35:41,303 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 522 transitions. [2023-01-27 19:35:41,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 130.5) internal successors, (522), 4 states have internal predecessors, (522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:41,305 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:41,305 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 338.0) internal successors, (1690), 5 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:41,306 INFO L175 Difference]: Start difference. First operand has 64 places, 39 transitions, 240 flow. Second operand 4 states and 522 transitions. [2023-01-27 19:35:41,306 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 43 transitions, 322 flow [2023-01-27 19:35:41,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 43 transitions, 297 flow, removed 2 selfloop flow, removed 7 redundant places. [2023-01-27 19:35:41,307 INFO L231 Difference]: Finished difference. Result has 57 places, 0 transitions, 0 flow [2023-01-27 19:35:41,307 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=338, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=57, PETRI_TRANSITIONS=0} [2023-01-27 19:35:41,308 INFO L281 CegarLoopForPetriNet]: 33 programPoint places, 24 predicate places. [2023-01-27 19:35:41,308 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 0 transitions, 0 flow [2023-01-27 19:35:41,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 127.2) internal successors, (636), 5 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:35:41,310 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-01-27 19:35:41,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-01-27 19:35:41,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-01-27 19:35:41,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 7 remaining) [2023-01-27 19:35:41,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 7 remaining) [2023-01-27 19:35:41,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-01-27 19:35:41,312 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr2ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-01-27 19:35:41,312 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-01-27 19:35:41,312 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:35:41,316 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:35:41,316 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:35:41,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:35:41 BasicIcfg [2023-01-27 19:35:41,335 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:35:41,335 INFO L158 Benchmark]: Toolchain (without parser) took 12207.94ms. Allocated memory was 434.1MB in the beginning and 522.2MB in the end (delta: 88.1MB). Free memory was 381.7MB in the beginning and 285.8MB in the end (delta: 95.9MB). Peak memory consumption was 182.3MB. Max. memory is 16.0GB. [2023-01-27 19:35:41,335 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 312.5MB. Free memory was 260.9MB in the beginning and 260.7MB in the end (delta: 176.3kB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:35:41,336 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.78ms. Allocated memory is still 434.1MB. Free memory was 381.4MB in the beginning and 361.7MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 19:35:41,336 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.21ms. Allocated memory is still 434.1MB. Free memory was 361.7MB in the beginning and 359.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:35:41,336 INFO L158 Benchmark]: Boogie Preprocessor took 37.74ms. Allocated memory is still 434.1MB. Free memory was 359.3MB in the beginning and 357.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:35:41,336 INFO L158 Benchmark]: RCFGBuilder took 726.65ms. Allocated memory is still 434.1MB. Free memory was 357.5MB in the beginning and 339.7MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. [2023-01-27 19:35:41,336 INFO L158 Benchmark]: TraceAbstraction took 10771.03ms. Allocated memory was 434.1MB in the beginning and 522.2MB in the end (delta: 88.1MB). Free memory was 339.4MB in the beginning and 285.8MB in the end (delta: 53.6MB). Peak memory consumption was 140.3MB. Max. memory is 16.0GB. [2023-01-27 19:35:41,337 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 312.5MB. Free memory was 260.9MB in the beginning and 260.7MB in the end (delta: 176.3kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 589.78ms. Allocated memory is still 434.1MB. Free memory was 381.4MB in the beginning and 361.7MB in the end (delta: 19.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 77.21ms. Allocated memory is still 434.1MB. Free memory was 361.7MB in the beginning and 359.3MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 37.74ms. Allocated memory is still 434.1MB. Free memory was 359.3MB in the beginning and 357.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 726.65ms. Allocated memory is still 434.1MB. Free memory was 357.5MB in the beginning and 339.7MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.0GB. * TraceAbstraction took 10771.03ms. Allocated memory was 434.1MB in the beginning and 522.2MB in the end (delta: 88.1MB). Free memory was 339.4MB in the beginning and 285.8MB in the end (delta: 53.6MB). Peak memory consumption was 140.3MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 160 PlacesBefore, 33 PlacesAfterwards, 164 TransitionsBefore, 32 TransitionsAfterwards, 6840 CoEnabledTransitionPairs, 6 FixpointIterations, 41 TrivialSequentialCompositions, 102 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 24 ConcurrentYvCompositions, 5 ChoiceCompositions, 172 TotalNumberOfCompositions, 11483 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6171, independent: 5919, independent conditional: 0, independent unconditional: 5919, dependent: 252, dependent conditional: 0, dependent unconditional: 252, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3845, independent: 3793, independent conditional: 0, independent unconditional: 3793, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6171, independent: 2126, independent conditional: 0, independent unconditional: 2126, dependent: 200, dependent conditional: 0, dependent unconditional: 200, unknown: 3845, unknown conditional: 0, unknown unconditional: 3845] , Statistics on independence cache: Total cache size (in pairs): 101, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 24, Negative conditional cache size: 0, Negative unconditional cache size: 24, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 19]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 230 locations, 7 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.5s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 370 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 370 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 971 IncrementalHoareTripleChecker+Invalid, 1003 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 11 mSDtfsCounter, 971 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 90 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=247occurred in iteration=7, InterpolantAutomatonStates: 73, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 142 ConstructedInterpolants, 0 QuantifiedInterpolants, 688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-27 19:35:41,362 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...