/usr/bin/java -Xmx8000000000 -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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:32:25,087 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:32:25,089 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:32:25,127 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:32:25,153 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:32:25,155 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:32:25,157 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:32:25,158 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:32:25,159 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:32:25,159 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:32:25,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:32:25,168 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:32:25,170 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:32:25,172 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:32:25,174 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:32:25,175 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:32:25,181 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:32:25,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:32:25,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:32:25,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:32:25,191 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-NoLbe.epf [2022-09-16 11:32:25,222 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:32:25,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:32:25,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:32:25,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:32:25,224 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:32:25,224 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:32:25,225 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:32:25,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:32:25,225 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:32:25,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:32:25,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:32:25,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:32:25,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:32:25,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:32:25,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:32:25,226 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:32:25,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:32:25,227 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:32:25,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:32:25,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:32:25,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:32:25,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:32:25,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:32:25,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:32:25,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:32:25,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:32:25,229 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:32:25,229 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:32:25,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:32:25,229 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:32:25,229 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:32:25,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:32:25,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:32:25,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:32:25,482 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:32:25,483 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:32:25,484 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:32:25,485 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-09-16 11:32:25,539 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7cdfbf8c/d6c70443859248e6adff50d5c10d56ff/FLAGa043ca7ce [2022-09-16 11:32:26,104 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:32:26,105 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-09-16 11:32:26,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7cdfbf8c/d6c70443859248e6adff50d5c10d56ff/FLAGa043ca7ce [2022-09-16 11:32:26,559 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b7cdfbf8c/d6c70443859248e6adff50d5c10d56ff [2022-09-16 11:32:26,561 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:32:26,562 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:32:26,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:32:26,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:32:26,568 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:32:26,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:32:26" (1/1) ... [2022-09-16 11:32:26,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11f0ef09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:26, skipping insertion in model container [2022-09-16 11:32:26,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:32:26" (1/1) ... [2022-09-16 11:32:26,577 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:32:26,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:32:26,804 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-09-16 11:32:27,031 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:32:27,041 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:32:27,055 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix023_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-09-16 11:32:27,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:32:27,151 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:32:27,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:27 WrapperNode [2022-09-16 11:32:27,152 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:32:27,153 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:32:27,153 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:32:27,153 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:32:27,161 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:27" (1/1) ... [2022-09-16 11:32:27,194 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:27" (1/1) ... [2022-09-16 11:32:27,240 INFO L138 Inliner]: procedures = 177, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 195 [2022-09-16 11:32:27,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:32:27,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:32:27,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:32:27,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:32:27,250 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:27" (1/1) ... [2022-09-16 11:32:27,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:27" (1/1) ... [2022-09-16 11:32:27,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:27" (1/1) ... [2022-09-16 11:32:27,267 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:27" (1/1) ... [2022-09-16 11:32:27,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:27" (1/1) ... [2022-09-16 11:32:27,283 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:27" (1/1) ... [2022-09-16 11:32:27,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:27" (1/1) ... [2022-09-16 11:32:27,309 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:32:27,310 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:32:27,310 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:32:27,310 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:32:27,315 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:27" (1/1) ... [2022-09-16 11:32:27,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:32:27,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:32:27,349 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) [2022-09-16 11:32:27,373 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 [2022-09-16 11:32:27,395 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:32:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:32:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:32:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:32:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:32:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:32:27,396 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:32:27,396 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:32:27,397 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:32:27,397 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:32:27,397 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:32:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 11:32:27,398 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 11:32:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:32:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:32:27,398 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:32:27,398 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:32:27,400 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:32:27,528 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:32:27,529 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:32:28,129 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:32:28,530 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:32:28,530 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:32:28,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:32:28 BoogieIcfgContainer [2022-09-16 11:32:28,533 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:32:28,535 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:32:28,535 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:32:28,538 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:32:28,538 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:32:26" (1/3) ... [2022-09-16 11:32:28,539 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc5c92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:32:28, skipping insertion in model container [2022-09-16 11:32:28,539 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:32:27" (2/3) ... [2022-09-16 11:32:28,540 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bc5c92f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:32:28, skipping insertion in model container [2022-09-16 11:32:28,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:32:28" (3/3) ... [2022-09-16 11:32:28,541 INFO L112 eAbstractionObserver]: Analyzing ICFG mix023_power.oepc_pso.oepc_rmo.oepc.i [2022-09-16 11:32:28,558 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:32:28,558 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:32:28,558 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:32:28,644 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:32:28,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 145 transitions, 310 flow [2022-09-16 11:32:28,757 INFO L130 PetriNetUnfolder]: 2/141 cut-off events. [2022-09-16 11:32:28,757 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:32:28,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 141 events. 2/141 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 98 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 99. Up to 2 conditions per place. [2022-09-16 11:32:28,762 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 145 transitions, 310 flow [2022-09-16 11:32:28,768 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 152 places, 141 transitions, 294 flow [2022-09-16 11:32:28,782 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:32:28,790 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;@4523a5a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:32:28,790 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 11:32:28,819 INFO L130 PetriNetUnfolder]: 0/58 cut-off events. [2022-09-16 11:32:28,820 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:32:28,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:28,821 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:32:28,822 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:28,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:28,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1572530879, now seen corresponding path program 1 times [2022-09-16 11:32:28,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:28,833 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672255449] [2022-09-16 11:32:28,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:28,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:28,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:29,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:32:29,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:29,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672255449] [2022-09-16 11:32:29,133 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672255449] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:29,133 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:29,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:32:29,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343687016] [2022-09-16 11:32:29,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:29,143 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:32:29,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:29,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:32:29,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:32:29,178 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2022-09-16 11:32:29,186 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 141 transitions, 294 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2022-09-16 11:32:29,186 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:29,187 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2022-09-16 11:32:29,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:30,712 INFO L130 PetriNetUnfolder]: 4102/7316 cut-off events. [2022-09-16 11:32:30,712 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-09-16 11:32:30,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13341 conditions, 7316 events. 4102/7316 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 58113 event pairs, 1225 based on Foata normal form. 200/5173 useless extension candidates. Maximal degree in co-relation 13283. Up to 5438 conditions per place. [2022-09-16 11:32:30,815 INFO L137 encePairwiseOnDemand]: 130/145 looper letters, 35 selfloop transitions, 5 changer transitions 0/153 dead transitions. [2022-09-16 11:32:30,815 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 153 transitions, 407 flow [2022-09-16 11:32:30,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:32:30,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:32:30,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 403 transitions. [2022-09-16 11:32:30,829 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9264367816091954 [2022-09-16 11:32:30,830 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 403 transitions. [2022-09-16 11:32:30,830 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 403 transitions. [2022-09-16 11:32:30,831 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:30,834 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 403 transitions. [2022-09-16 11:32:30,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 134.33333333333334) internal successors, (403), 3 states have internal predecessors, (403), 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) [2022-09-16 11:32:30,845 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2022-09-16 11:32:30,846 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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) [2022-09-16 11:32:30,848 INFO L175 Difference]: Start difference. First operand has 152 places, 141 transitions, 294 flow. Second operand 3 states and 403 transitions. [2022-09-16 11:32:30,849 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 153 transitions, 407 flow [2022-09-16 11:32:30,852 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 153 transitions, 400 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:32:30,857 INFO L231 Difference]: Finished difference. Result has 150 places, 142 transitions, 331 flow [2022-09-16 11:32:30,860 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=284, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=331, PETRI_PLACES=150, PETRI_TRANSITIONS=142} [2022-09-16 11:32:30,864 INFO L287 CegarLoopForPetriNet]: 152 programPoint places, -2 predicate places. [2022-09-16 11:32:30,865 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 142 transitions, 331 flow [2022-09-16 11:32:30,866 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 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) [2022-09-16 11:32:30,866 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:30,866 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:32:30,866 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:32:30,866 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:30,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:30,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1108685056, now seen corresponding path program 1 times [2022-09-16 11:32:30,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:30,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [144833623] [2022-09-16 11:32:30,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:30,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:30,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:31,034 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:32:31,035 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:31,035 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [144833623] [2022-09-16 11:32:31,035 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [144833623] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:31,035 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:31,035 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:32:31,036 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960794536] [2022-09-16 11:32:31,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:31,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:32:31,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:31,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:32:31,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:32:31,039 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2022-09-16 11:32:31,039 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 142 transitions, 331 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2022-09-16 11:32:31,040 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:31,040 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2022-09-16 11:32:31,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:31,833 INFO L130 PetriNetUnfolder]: 2267/4525 cut-off events. [2022-09-16 11:32:31,833 INFO L131 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2022-09-16 11:32:31,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9504 conditions, 4525 events. 2267/4525 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 284. Compared 35576 event pairs, 553 based on Foata normal form. 0/3661 useless extension candidates. Maximal degree in co-relation 9447. Up to 2842 conditions per place. [2022-09-16 11:32:31,883 INFO L137 encePairwiseOnDemand]: 136/145 looper letters, 31 selfloop transitions, 5 changer transitions 0/149 dead transitions. [2022-09-16 11:32:31,883 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 149 transitions, 415 flow [2022-09-16 11:32:31,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:32:31,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:32:31,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2022-09-16 11:32:31,888 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8758620689655172 [2022-09-16 11:32:31,888 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2022-09-16 11:32:31,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2022-09-16 11:32:31,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:31,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2022-09-16 11:32:31,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 127.0) internal successors, (508), 4 states have internal predecessors, (508), 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) [2022-09-16 11:32:31,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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) [2022-09-16 11:32:31,893 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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) [2022-09-16 11:32:31,893 INFO L175 Difference]: Start difference. First operand has 150 places, 142 transitions, 331 flow. Second operand 4 states and 508 transitions. [2022-09-16 11:32:31,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 149 transitions, 415 flow [2022-09-16 11:32:31,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 149 transitions, 410 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:32:31,900 INFO L231 Difference]: Finished difference. Result has 148 places, 138 transitions, 320 flow [2022-09-16 11:32:31,900 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=320, PETRI_PLACES=148, PETRI_TRANSITIONS=138} [2022-09-16 11:32:31,901 INFO L287 CegarLoopForPetriNet]: 152 programPoint places, -4 predicate places. [2022-09-16 11:32:31,902 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 138 transitions, 320 flow [2022-09-16 11:32:31,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2022-09-16 11:32:31,902 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:31,902 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:32:31,902 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:32:31,903 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:31,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:31,903 INFO L85 PathProgramCache]: Analyzing trace with hash -705970655, now seen corresponding path program 1 times [2022-09-16 11:32:31,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:31,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951560111] [2022-09-16 11:32:31,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:31,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:31,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:32:31,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:31,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951560111] [2022-09-16 11:32:31,981 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951560111] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:31,981 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:31,981 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:32:31,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217202877] [2022-09-16 11:32:31,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:31,982 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:32:31,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:31,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:32:31,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:32:31,984 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2022-09-16 11:32:31,985 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 138 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2022-09-16 11:32:31,985 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:31,986 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2022-09-16 11:32:31,986 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:32,630 INFO L130 PetriNetUnfolder]: 1367/3140 cut-off events. [2022-09-16 11:32:32,631 INFO L131 PetriNetUnfolder]: For 431/431 co-relation queries the response was YES. [2022-09-16 11:32:32,651 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6157 conditions, 3140 events. 1367/3140 cut-off events. For 431/431 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 24674 event pairs, 279 based on Foata normal form. 0/2837 useless extension candidates. Maximal degree in co-relation 6099. Up to 917 conditions per place. [2022-09-16 11:32:32,670 INFO L137 encePairwiseOnDemand]: 136/145 looper letters, 41 selfloop transitions, 9 changer transitions 0/163 dead transitions. [2022-09-16 11:32:32,670 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 163 transitions, 488 flow [2022-09-16 11:32:32,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:32:32,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:32:32,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 522 transitions. [2022-09-16 11:32:32,673 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9 [2022-09-16 11:32:32,673 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 522 transitions. [2022-09-16 11:32:32,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 522 transitions. [2022-09-16 11:32:32,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:32,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 522 transitions. [2022-09-16 11:32:32,675 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) [2022-09-16 11:32:32,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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) [2022-09-16 11:32:32,677 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 145.0) internal successors, (725), 5 states have internal predecessors, (725), 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) [2022-09-16 11:32:32,678 INFO L175 Difference]: Start difference. First operand has 148 places, 138 transitions, 320 flow. Second operand 4 states and 522 transitions. [2022-09-16 11:32:32,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 163 transitions, 488 flow [2022-09-16 11:32:32,681 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 163 transitions, 482 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:32:32,686 INFO L231 Difference]: Finished difference. Result has 150 places, 142 transitions, 372 flow [2022-09-16 11:32:32,687 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=372, PETRI_PLACES=150, PETRI_TRANSITIONS=142} [2022-09-16 11:32:32,689 INFO L287 CegarLoopForPetriNet]: 152 programPoint places, -2 predicate places. [2022-09-16 11:32:32,689 INFO L495 AbstractCegarLoop]: Abstraction has has 150 places, 142 transitions, 372 flow [2022-09-16 11:32:32,690 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 119.0) internal successors, (476), 4 states have internal predecessors, (476), 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) [2022-09-16 11:32:32,690 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:32,690 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:32:32,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:32:32,691 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:32,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:32,691 INFO L85 PathProgramCache]: Analyzing trace with hash -2076955954, now seen corresponding path program 1 times [2022-09-16 11:32:32,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:32,692 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826803852] [2022-09-16 11:32:32,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:32,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:32,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:32,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:32:32,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:32,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826803852] [2022-09-16 11:32:32,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826803852] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:32,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:32,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:32:32,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665694544] [2022-09-16 11:32:32,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:32,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:32:32,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:32,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:32:32,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:32:32,878 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2022-09-16 11:32:32,879 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 142 transitions, 372 flow. Second operand has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:32,879 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:32,879 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2022-09-16 11:32:32,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:33,408 INFO L130 PetriNetUnfolder]: 1184/2828 cut-off events. [2022-09-16 11:32:33,409 INFO L131 PetriNetUnfolder]: For 948/948 co-relation queries the response was YES. [2022-09-16 11:32:33,426 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6176 conditions, 2828 events. 1184/2828 cut-off events. For 948/948 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 21831 event pairs, 246 based on Foata normal form. 0/2692 useless extension candidates. Maximal degree in co-relation 6117. Up to 683 conditions per place. [2022-09-16 11:32:33,443 INFO L137 encePairwiseOnDemand]: 136/145 looper letters, 46 selfloop transitions, 13 changer transitions 4/176 dead transitions. [2022-09-16 11:32:33,444 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 176 transitions, 594 flow [2022-09-16 11:32:33,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:32:33,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:32:33,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 652 transitions. [2022-09-16 11:32:33,446 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8993103448275862 [2022-09-16 11:32:33,446 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 652 transitions. [2022-09-16 11:32:33,447 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 652 transitions. [2022-09-16 11:32:33,447 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:33,447 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 652 transitions. [2022-09-16 11:32:33,449 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 130.4) internal successors, (652), 5 states have internal predecessors, (652), 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) [2022-09-16 11:32:33,450 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 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) [2022-09-16 11:32:33,451 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 145.0) internal successors, (870), 6 states have internal predecessors, (870), 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) [2022-09-16 11:32:33,451 INFO L175 Difference]: Start difference. First operand has 150 places, 142 transitions, 372 flow. Second operand 5 states and 652 transitions. [2022-09-16 11:32:33,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 176 transitions, 594 flow [2022-09-16 11:32:33,455 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 176 transitions, 576 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-09-16 11:32:33,458 INFO L231 Difference]: Finished difference. Result has 153 places, 142 transitions, 396 flow [2022-09-16 11:32:33,458 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=354, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=396, PETRI_PLACES=153, PETRI_TRANSITIONS=142} [2022-09-16 11:32:33,459 INFO L287 CegarLoopForPetriNet]: 152 programPoint places, 1 predicate places. [2022-09-16 11:32:33,459 INFO L495 AbstractCegarLoop]: Abstraction has has 153 places, 142 transitions, 396 flow [2022-09-16 11:32:33,460 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.2) internal successors, (596), 5 states have internal predecessors, (596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:32:33,460 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:32:33,460 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:32:33,461 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:32:33,461 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2022-09-16 11:32:33,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:32:33,461 INFO L85 PathProgramCache]: Analyzing trace with hash 873898303, now seen corresponding path program 1 times [2022-09-16 11:32:33,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:32:33,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18128031] [2022-09-16 11:32:33,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:32:33,462 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:32:33,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:32:33,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:32:33,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:32:33,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18128031] [2022-09-16 11:32:33,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18128031] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:32:33,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:32:33,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:32:33,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33220846] [2022-09-16 11:32:33,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:32:33,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:32:33,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:32:33,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:32:33,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:32:33,602 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 145 [2022-09-16 11:32:33,603 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 142 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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) [2022-09-16 11:32:33,603 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:32:33,603 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 145 [2022-09-16 11:32:33,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:32:34,178 INFO L130 PetriNetUnfolder]: 1165/3274 cut-off events. [2022-09-16 11:32:34,178 INFO L131 PetriNetUnfolder]: For 1962/1962 co-relation queries the response was YES. [2022-09-16 11:32:34,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6691 conditions, 3274 events. 1165/3274 cut-off events. For 1962/1962 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 26425 event pairs, 375 based on Foata normal form. 12/3130 useless extension candidates. Maximal degree in co-relation 6631. Up to 683 conditions per place. [2022-09-16 11:32:34,203 INFO L137 encePairwiseOnDemand]: 136/145 looper letters, 0 selfloop transitions, 0 changer transitions 168/168 dead transitions. [2022-09-16 11:32:34,203 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 168 transitions, 546 flow [2022-09-16 11:32:34,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:32:34,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:32:34,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 761 transitions. [2022-09-16 11:32:34,206 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8747126436781609 [2022-09-16 11:32:34,206 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 761 transitions. [2022-09-16 11:32:34,206 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 761 transitions. [2022-09-16 11:32:34,206 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:32:34,207 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 761 transitions. [2022-09-16 11:32:34,208 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 126.83333333333333) internal successors, (761), 6 states have internal predecessors, (761), 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) [2022-09-16 11:32:34,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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) [2022-09-16 11:32:34,211 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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) [2022-09-16 11:32:34,211 INFO L175 Difference]: Start difference. First operand has 153 places, 142 transitions, 396 flow. Second operand 6 states and 761 transitions. [2022-09-16 11:32:34,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 168 transitions, 546 flow [2022-09-16 11:32:34,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 168 transitions, 491 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-16 11:32:34,222 INFO L231 Difference]: Finished difference. Result has 148 places, 0 transitions, 0 flow [2022-09-16 11:32:34,222 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=148, PETRI_TRANSITIONS=0} [2022-09-16 11:32:34,223 INFO L287 CegarLoopForPetriNet]: 152 programPoint places, -4 predicate places. [2022-09-16 11:32:34,223 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 0 transitions, 0 flow [2022-09-16 11:32:34,224 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 119.5) internal successors, (717), 6 states have internal predecessors, (717), 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) [2022-09-16 11:32:34,226 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-09-16 11:32:34,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-09-16 11:32:34,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-09-16 11:32:34,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-09-16 11:32:34,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-09-16 11:32:34,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-09-16 11:32:34,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-09-16 11:32:34,227 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-09-16 11:32:34,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-09-16 11:32:34,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-09-16 11:32:34,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-09-16 11:32:34,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-09-16 11:32:34,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-09-16 11:32:34,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-09-16 11:32:34,228 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-09-16 11:32:34,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-09-16 11:32:34,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-09-16 11:32:34,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-09-16 11:32:34,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-09-16 11:32:34,229 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-09-16 11:32:34,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:32:34,230 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:32:34,235 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:32:34,235 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:32:34,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:32:34 BasicIcfg [2022-09-16 11:32:34,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:32:34,240 INFO L158 Benchmark]: Toolchain (without parser) took 7678.14ms. Allocated memory was 185.6MB in the beginning and 529.5MB in the end (delta: 343.9MB). Free memory was 160.5MB in the beginning and 193.3MB in the end (delta: -32.8MB). Peak memory consumption was 356.6MB. Max. memory is 8.0GB. [2022-09-16 11:32:34,240 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 185.6MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:32:34,241 INFO L158 Benchmark]: CACSL2BoogieTranslator took 589.29ms. Allocated memory was 185.6MB in the beginning and 240.1MB in the end (delta: 54.5MB). Free memory was 160.1MB in the beginning and 199.2MB in the end (delta: -39.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. [2022-09-16 11:32:34,241 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.06ms. Allocated memory is still 240.1MB. Free memory was 199.2MB in the beginning and 196.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:34,241 INFO L158 Benchmark]: Boogie Preprocessor took 67.03ms. Allocated memory is still 240.1MB. Free memory was 196.7MB in the beginning and 194.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:32:34,242 INFO L158 Benchmark]: RCFGBuilder took 1223.08ms. Allocated memory is still 240.1MB. Free memory was 194.1MB in the beginning and 161.8MB in the end (delta: 32.3MB). Peak memory consumption was 75.2MB. Max. memory is 8.0GB. [2022-09-16 11:32:34,242 INFO L158 Benchmark]: TraceAbstraction took 5704.61ms. Allocated memory was 240.1MB in the beginning and 529.5MB in the end (delta: 289.4MB). Free memory was 161.3MB in the beginning and 193.3MB in the end (delta: -32.0MB). Peak memory consumption was 303.0MB. Max. memory is 8.0GB. [2022-09-16 11:32:34,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 185.6MB. Free memory is still 145.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 589.29ms. Allocated memory was 185.6MB in the beginning and 240.1MB in the end (delta: 54.5MB). Free memory was 160.1MB in the beginning and 199.2MB in the end (delta: -39.1MB). Peak memory consumption was 14.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 88.06ms. Allocated memory is still 240.1MB. Free memory was 199.2MB in the beginning and 196.7MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.03ms. Allocated memory is still 240.1MB. Free memory was 196.7MB in the beginning and 194.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1223.08ms. Allocated memory is still 240.1MB. Free memory was 194.1MB in the beginning and 161.8MB in the end (delta: 32.3MB). Peak memory consumption was 75.2MB. Max. memory is 8.0GB. * TraceAbstraction took 5704.61ms. Allocated memory was 240.1MB in the beginning and 529.5MB in the end (delta: 289.4MB). Free memory was 161.3MB in the beginning and 193.3MB in the end (delta: -32.0MB). Peak memory consumption was 303.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 775]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 798]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 818]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 854]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 190 locations, 20 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: 5.5s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 146 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 146 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 53 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 294 IncrementalHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 53 mSolverCounterUnsat, 17 mSDtfsCounter, 294 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=396occurred in iteration=4, InterpolantAutomatonStates: 22, 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, 0.5s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 349 ConstructedInterpolants, 0 QuantifiedInterpolants, 967 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:32:34,284 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...