/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/mix057_power.oepc_pso.oepc_rmo.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:33:55,584 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:33:55,586 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:33:55,621 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:33:55,636 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:33:55,638 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:33:55,639 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:33:55,641 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:33:55,642 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:33:55,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:33:55,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:33:55,648 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:33:55,649 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:33:55,650 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:33:55,651 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:33:55,652 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:33:55,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-16 11:33:55,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:33:55,664 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:33:55,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:33:55,666 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 11:33:55,689 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:33:55,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:33:55,690 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:33:55,690 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:33:55,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:33:55,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:33:55,691 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:33:55,691 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:33:55,691 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:33:55,691 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:33:55,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:33:55,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:33:55,692 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:33:55,692 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:33:55,692 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:33:55,692 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:33:55,692 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:33:55,692 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:33:55,692 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:33:55,693 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:33:55,693 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:33:55,693 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:33:55,693 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:33:55,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:55,693 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:33:55,693 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:33:55,693 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:33:55,693 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:33:55,693 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:33:55,693 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:33:55,694 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:33:55,694 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:33:55,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:33:55,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:33:55,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:33:55,916 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:33:55,923 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:33:55,924 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-09-16 11:33:55,988 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c60ece12d/7d4cee0c3f594a78a1473879622d44df/FLAG694981d6f [2022-09-16 11:33:56,344 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:33:56,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-09-16 11:33:56,367 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c60ece12d/7d4cee0c3f594a78a1473879622d44df/FLAG694981d6f [2022-09-16 11:33:56,728 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c60ece12d/7d4cee0c3f594a78a1473879622d44df [2022-09-16 11:33:56,730 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:33:56,731 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:33:56,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:56,734 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:33:56,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:33:56,737 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:56" (1/1) ... [2022-09-16 11:33:56,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6117fd66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:56, skipping insertion in model container [2022-09-16 11:33:56,738 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:33:56" (1/1) ... [2022-09-16 11:33:56,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:33:56,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:33:56,990 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/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-09-16 11:33:57,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:57,181 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:33:57,190 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/mix057_power.oepc_pso.oepc_rmo.oepc.i[969,982] [2022-09-16 11:33:57,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:33:57,273 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:33:57,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:57 WrapperNode [2022-09-16 11:33:57,273 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:33:57,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:57,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:33:57,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:33:57,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:57" (1/1) ... [2022-09-16 11:33:57,301 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:57" (1/1) ... [2022-09-16 11:33:57,318 INFO L138 Inliner]: procedures = 177, calls = 67, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 192 [2022-09-16 11:33:57,318 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:33:57,319 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:33:57,319 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:33:57,319 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:33:57,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:57" (1/1) ... [2022-09-16 11:33:57,332 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:57" (1/1) ... [2022-09-16 11:33:57,337 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:57" (1/1) ... [2022-09-16 11:33:57,337 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:57" (1/1) ... [2022-09-16 11:33:57,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:57" (1/1) ... [2022-09-16 11:33:57,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:57" (1/1) ... [2022-09-16 11:33:57,347 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:57" (1/1) ... [2022-09-16 11:33:57,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:33:57,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:33:57,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:33:57,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:33:57,363 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:57" (1/1) ... [2022-09-16 11:33:57,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:33:57,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:33:57,383 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 11:33:57,384 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 11:33:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:33:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:33:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:33:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:33:57,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:33:57,428 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-09-16 11:33:57,428 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-09-16 11:33:57,428 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-09-16 11:33:57,428 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-09-16 11:33:57,428 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-09-16 11:33:57,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-09-16 11:33:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2022-09-16 11:33:57,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2022-09-16 11:33:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:33:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:33:57,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:33:57,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:33:57,432 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 11:33:57,578 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:33:57,579 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:33:57,984 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:33:58,315 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:33:58,316 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:33:58,317 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:33:58 BoogieIcfgContainer [2022-09-16 11:33:58,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:33:58,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:33:58,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:33:58,322 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:33:58,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:33:56" (1/3) ... [2022-09-16 11:33:58,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7f0cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:33:58, skipping insertion in model container [2022-09-16 11:33:58,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:33:57" (2/3) ... [2022-09-16 11:33:58,323 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c7f0cbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:33:58, skipping insertion in model container [2022-09-16 11:33:58,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:33:58" (3/3) ... [2022-09-16 11:33:58,324 INFO L112 eAbstractionObserver]: Analyzing ICFG mix057_power.oepc_pso.oepc_rmo.oepc.i [2022-09-16 11:33:58,337 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:33:58,338 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-09-16 11:33:58,338 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:33:58,403 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-16 11:33:58,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 140 transitions, 300 flow [2022-09-16 11:33:58,482 INFO L130 PetriNetUnfolder]: 2/136 cut-off events. [2022-09-16 11:33:58,482 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:33:58,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 136 events. 2/136 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 97. Up to 2 conditions per place. [2022-09-16 11:33:58,486 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 140 transitions, 300 flow [2022-09-16 11:33:58,491 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 136 transitions, 284 flow [2022-09-16 11:33:58,500 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:33:58,507 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;@2a38d790, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:33:58,507 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-09-16 11:33:58,520 INFO L130 PetriNetUnfolder]: 0/53 cut-off events. [2022-09-16 11:33:58,520 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:33:58,521 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:33:58,521 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] [2022-09-16 11:33:58,522 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 11:33:58,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:33:58,526 INFO L85 PathProgramCache]: Analyzing trace with hash -957983377, now seen corresponding path program 1 times [2022-09-16 11:33:58,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:33:58,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [298870667] [2022-09-16 11:33:58,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:33:58,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:33:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:33:58,783 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 11:33:58,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:33:58,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [298870667] [2022-09-16 11:33:58,784 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [298870667] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:33:58,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:33:58,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:33:58,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1996373014] [2022-09-16 11:33:58,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:33:58,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:33:58,792 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:33:58,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:33:58,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:33:58,820 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 140 [2022-09-16 11:33:58,825 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 136 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 11:33:58,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:33:58,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 140 [2022-09-16 11:33:58,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:00,024 INFO L130 PetriNetUnfolder]: 4102/7660 cut-off events. [2022-09-16 11:34:00,025 INFO L131 PetriNetUnfolder]: For 103/103 co-relation queries the response was YES. [2022-09-16 11:34:00,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13685 conditions, 7660 events. 4102/7660 cut-off events. For 103/103 co-relation queries the response was YES. Maximal size of possible extension queue 532. Compared 60269 event pairs, 2696 based on Foata normal form. 594/6022 useless extension candidates. Maximal degree in co-relation 13630. Up to 5438 conditions per place. [2022-09-16 11:34:00,114 INFO L137 encePairwiseOnDemand]: 125/140 looper letters, 35 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2022-09-16 11:34:00,115 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 148 transitions, 397 flow [2022-09-16 11:34:00,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:34:00,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:34:00,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 388 transitions. [2022-09-16 11:34:00,130 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.9238095238095239 [2022-09-16 11:34:00,131 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 388 transitions. [2022-09-16 11:34:00,131 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 388 transitions. [2022-09-16 11:34:00,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:00,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 388 transitions. [2022-09-16 11:34:00,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.33333333333334) internal successors, (388), 3 states have internal predecessors, (388), 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 11:34:00,149 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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 11:34:00,150 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 140.0) internal successors, (560), 4 states have internal predecessors, (560), 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 11:34:00,151 INFO L175 Difference]: Start difference. First operand has 147 places, 136 transitions, 284 flow. Second operand 3 states and 388 transitions. [2022-09-16 11:34:00,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 148 transitions, 397 flow [2022-09-16 11:34:00,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 148 transitions, 390 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:34:00,161 INFO L231 Difference]: Finished difference. Result has 145 places, 137 transitions, 321 flow [2022-09-16 11:34:00,162 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=321, PETRI_PLACES=145, PETRI_TRANSITIONS=137} [2022-09-16 11:34:00,165 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, -2 predicate places. [2022-09-16 11:34:00,166 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 137 transitions, 321 flow [2022-09-16 11:34:00,166 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 113.66666666666667) internal successors, (341), 3 states have internal predecessors, (341), 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 11:34:00,166 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:00,167 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] [2022-09-16 11:34:00,167 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:34:00,167 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 11:34:00,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:00,168 INFO L85 PathProgramCache]: Analyzing trace with hash 110100296, now seen corresponding path program 1 times [2022-09-16 11:34:00,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:00,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590707186] [2022-09-16 11:34:00,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:00,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:00,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:00,288 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 11:34:00,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:00,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590707186] [2022-09-16 11:34:00,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590707186] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:00,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:00,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:00,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495076049] [2022-09-16 11:34:00,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:00,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:00,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:00,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:00,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:00,291 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 140 [2022-09-16 11:34:00,292 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 137 transitions, 321 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 11:34:00,292 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:00,292 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 140 [2022-09-16 11:34:00,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:00,893 INFO L130 PetriNetUnfolder]: 2267/4520 cut-off events. [2022-09-16 11:34:00,894 INFO L131 PetriNetUnfolder]: For 116/116 co-relation queries the response was YES. [2022-09-16 11:34:00,909 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9499 conditions, 4520 events. 2267/4520 cut-off events. For 116/116 co-relation queries the response was YES. Maximal size of possible extension queue 283. Compared 35114 event pairs, 553 based on Foata normal form. 0/3654 useless extension candidates. Maximal degree in co-relation 9445. Up to 2842 conditions per place. [2022-09-16 11:34:00,936 INFO L137 encePairwiseOnDemand]: 131/140 looper letters, 31 selfloop transitions, 5 changer transitions 0/144 dead transitions. [2022-09-16 11:34:00,936 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 144 transitions, 405 flow [2022-09-16 11:34:00,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:00,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:00,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 488 transitions. [2022-09-16 11:34:00,939 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8714285714285714 [2022-09-16 11:34:00,939 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 488 transitions. [2022-09-16 11:34:00,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 488 transitions. [2022-09-16 11:34:00,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:00,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 488 transitions. [2022-09-16 11:34:00,940 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 122.0) internal successors, (488), 4 states have internal predecessors, (488), 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 11:34:00,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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 11:34:00,942 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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 11:34:00,942 INFO L175 Difference]: Start difference. First operand has 145 places, 137 transitions, 321 flow. Second operand 4 states and 488 transitions. [2022-09-16 11:34:00,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 144 transitions, 405 flow [2022-09-16 11:34:00,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 144 transitions, 400 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-09-16 11:34:00,947 INFO L231 Difference]: Finished difference. Result has 143 places, 133 transitions, 310 flow [2022-09-16 11:34:00,948 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=310, PETRI_PLACES=143, PETRI_TRANSITIONS=133} [2022-09-16 11:34:00,949 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, -4 predicate places. [2022-09-16 11:34:00,949 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 133 transitions, 310 flow [2022-09-16 11:34:00,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 11:34:00,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:00,949 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] [2022-09-16 11:34:00,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:34:00,950 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 11:34:00,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:00,950 INFO L85 PathProgramCache]: Analyzing trace with hash -728457153, now seen corresponding path program 1 times [2022-09-16 11:34:00,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:00,951 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239477249] [2022-09-16 11:34:00,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:00,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:00,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:01,039 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 11:34:01,040 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:01,040 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239477249] [2022-09-16 11:34:01,040 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239477249] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:01,041 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:01,041 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:34:01,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1777083086] [2022-09-16 11:34:01,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:01,042 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:34:01,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:01,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:34:01,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:34:01,044 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 140 [2022-09-16 11:34:01,045 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 133 transitions, 310 flow. Second operand has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 11:34:01,045 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:01,045 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 140 [2022-09-16 11:34:01,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:01,487 INFO L130 PetriNetUnfolder]: 1367/3135 cut-off events. [2022-09-16 11:34:01,487 INFO L131 PetriNetUnfolder]: For 431/431 co-relation queries the response was YES. [2022-09-16 11:34:01,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6152 conditions, 3135 events. 1367/3135 cut-off events. For 431/431 co-relation queries the response was YES. Maximal size of possible extension queue 183. Compared 24420 event pairs, 279 based on Foata normal form. 0/2830 useless extension candidates. Maximal degree in co-relation 6097. Up to 917 conditions per place. [2022-09-16 11:34:01,508 INFO L137 encePairwiseOnDemand]: 131/140 looper letters, 41 selfloop transitions, 9 changer transitions 0/158 dead transitions. [2022-09-16 11:34:01,508 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 158 transitions, 478 flow [2022-09-16 11:34:01,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:34:01,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:34:01,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 502 transitions. [2022-09-16 11:34:01,510 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8964285714285715 [2022-09-16 11:34:01,510 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 502 transitions. [2022-09-16 11:34:01,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 502 transitions. [2022-09-16 11:34:01,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:01,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 502 transitions. [2022-09-16 11:34:01,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 125.5) internal successors, (502), 4 states have internal predecessors, (502), 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 11:34:01,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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 11:34:01,513 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 140.0) internal successors, (700), 5 states have internal predecessors, (700), 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 11:34:01,513 INFO L175 Difference]: Start difference. First operand has 143 places, 133 transitions, 310 flow. Second operand 4 states and 502 transitions. [2022-09-16 11:34:01,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 158 transitions, 478 flow [2022-09-16 11:34:01,514 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 158 transitions, 472 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-16 11:34:01,516 INFO L231 Difference]: Finished difference. Result has 145 places, 137 transitions, 362 flow [2022-09-16 11:34:01,516 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=362, PETRI_PLACES=145, PETRI_TRANSITIONS=137} [2022-09-16 11:34:01,517 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, -2 predicate places. [2022-09-16 11:34:01,517 INFO L495 AbstractCegarLoop]: Abstraction has has 145 places, 137 transitions, 362 flow [2022-09-16 11:34:01,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 114.0) internal successors, (456), 4 states have internal predecessors, (456), 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 11:34:01,517 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:01,518 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] [2022-09-16 11:34:01,518 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:34:01,518 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 11:34:01,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:01,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1561462919, now seen corresponding path program 1 times [2022-09-16 11:34:01,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:01,519 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152723942] [2022-09-16 11:34:01,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:01,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:01,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:01,580 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 11:34:01,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:01,581 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152723942] [2022-09-16 11:34:01,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152723942] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:01,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:01,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:34:01,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657188945] [2022-09-16 11:34:01,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:01,582 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:34:01,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:01,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:34:01,582 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:34:01,583 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 140 [2022-09-16 11:34:01,584 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 137 transitions, 362 flow. Second operand has 5 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 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 11:34:01,584 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:01,584 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 140 [2022-09-16 11:34:01,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:02,067 INFO L130 PetriNetUnfolder]: 1184/2823 cut-off events. [2022-09-16 11:34:02,067 INFO L131 PetriNetUnfolder]: For 948/948 co-relation queries the response was YES. [2022-09-16 11:34:02,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6171 conditions, 2823 events. 1184/2823 cut-off events. For 948/948 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 21546 event pairs, 246 based on Foata normal form. 0/2685 useless extension candidates. Maximal degree in co-relation 6115. Up to 683 conditions per place. [2022-09-16 11:34:02,094 INFO L137 encePairwiseOnDemand]: 131/140 looper letters, 46 selfloop transitions, 13 changer transitions 4/171 dead transitions. [2022-09-16 11:34:02,094 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 171 transitions, 584 flow [2022-09-16 11:34:02,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:34:02,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:34:02,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 627 transitions. [2022-09-16 11:34:02,096 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8957142857142857 [2022-09-16 11:34:02,096 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 627 transitions. [2022-09-16 11:34:02,096 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 627 transitions. [2022-09-16 11:34:02,096 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:02,096 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 627 transitions. [2022-09-16 11:34:02,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.4) internal successors, (627), 5 states have internal predecessors, (627), 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 11:34:02,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 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 11:34:02,099 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 140.0) internal successors, (840), 6 states have internal predecessors, (840), 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 11:34:02,099 INFO L175 Difference]: Start difference. First operand has 145 places, 137 transitions, 362 flow. Second operand 5 states and 627 transitions. [2022-09-16 11:34:02,099 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 171 transitions, 584 flow [2022-09-16 11:34:02,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 171 transitions, 566 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-09-16 11:34:02,107 INFO L231 Difference]: Finished difference. Result has 148 places, 137 transitions, 386 flow [2022-09-16 11:34:02,108 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=386, PETRI_PLACES=148, PETRI_TRANSITIONS=137} [2022-09-16 11:34:02,111 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, 1 predicate places. [2022-09-16 11:34:02,112 INFO L495 AbstractCegarLoop]: Abstraction has has 148 places, 137 transitions, 386 flow [2022-09-16 11:34:02,113 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.2) internal successors, (571), 5 states have internal predecessors, (571), 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 11:34:02,117 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:34:02,117 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] [2022-09-16 11:34:02,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:34:02,118 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 11:34:02,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:34:02,118 INFO L85 PathProgramCache]: Analyzing trace with hash -696490468, now seen corresponding path program 1 times [2022-09-16 11:34:02,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:34:02,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203800624] [2022-09-16 11:34:02,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:34:02,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:34:02,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:34:02,266 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 11:34:02,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:34:02,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203800624] [2022-09-16 11:34:02,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1203800624] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:34:02,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:34:02,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:34:02,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1970422876] [2022-09-16 11:34:02,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:34:02,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:34:02,268 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:34:02,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:34:02,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:34:02,269 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 112 out of 140 [2022-09-16 11:34:02,270 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 137 transitions, 386 flow. Second operand has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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 11:34:02,270 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:34:02,270 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 112 of 140 [2022-09-16 11:34:02,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:34:02,634 INFO L130 PetriNetUnfolder]: 1165/2783 cut-off events. [2022-09-16 11:34:02,634 INFO L131 PetriNetUnfolder]: For 1279/1279 co-relation queries the response was YES. [2022-09-16 11:34:02,647 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6200 conditions, 2783 events. 1165/2783 cut-off events. For 1279/1279 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 21151 event pairs, 246 based on Foata normal form. 12/2674 useless extension candidates. Maximal degree in co-relation 6143. Up to 683 conditions per place. [2022-09-16 11:34:02,650 INFO L137 encePairwiseOnDemand]: 131/140 looper letters, 0 selfloop transitions, 0 changer transitions 163/163 dead transitions. [2022-09-16 11:34:02,650 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 163 transitions, 536 flow [2022-09-16 11:34:02,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:34:02,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:34:02,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 731 transitions. [2022-09-16 11:34:02,652 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8702380952380953 [2022-09-16 11:34:02,652 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 731 transitions. [2022-09-16 11:34:02,652 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 731 transitions. [2022-09-16 11:34:02,653 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:34:02,653 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 731 transitions. [2022-09-16 11:34:02,654 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 121.83333333333333) internal successors, (731), 6 states have internal predecessors, (731), 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 11:34:02,655 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 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 11:34:02,656 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 140.0) internal successors, (980), 7 states have internal predecessors, (980), 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 11:34:02,656 INFO L175 Difference]: Start difference. First operand has 148 places, 137 transitions, 386 flow. Second operand 6 states and 731 transitions. [2022-09-16 11:34:02,656 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 163 transitions, 536 flow [2022-09-16 11:34:02,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 163 transitions, 481 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-16 11:34:02,672 INFO L231 Difference]: Finished difference. Result has 143 places, 0 transitions, 0 flow [2022-09-16 11:34:02,672 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=299, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=143, PETRI_TRANSITIONS=0} [2022-09-16 11:34:02,673 INFO L287 CegarLoopForPetriNet]: 147 programPoint places, -4 predicate places. [2022-09-16 11:34:02,673 INFO L495 AbstractCegarLoop]: Abstraction has has 143 places, 0 transitions, 0 flow [2022-09-16 11:34:02,673 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 114.5) internal successors, (687), 6 states have internal predecessors, (687), 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 11:34:02,675 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-09-16 11:34:02,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-09-16 11:34:02,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-09-16 11:34:02,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-09-16 11:34:02,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-09-16 11:34:02,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-09-16 11:34:02,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-09-16 11:34:02,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-09-16 11:34:02,676 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 20 remaining) [2022-09-16 11:34:02,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 20 remaining) [2022-09-16 11:34:02,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 20 remaining) [2022-09-16 11:34:02,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 20 remaining) [2022-09-16 11:34:02,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-09-16 11:34:02,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-09-16 11:34:02,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-09-16 11:34:02,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-09-16 11:34:02,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-09-16 11:34:02,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-09-16 11:34:02,677 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-09-16 11:34:02,678 INFO L805 garLoopResultBuilder]: Registering result SAFE for location P3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-09-16 11:34:02,678 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:34:02,678 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-09-16 11:34:02,682 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:34:02,682 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:34:02,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:34:02 BasicIcfg [2022-09-16 11:34:02,686 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:34:02,687 INFO L158 Benchmark]: Toolchain (without parser) took 5955.19ms. Allocated memory was 180.4MB in the beginning and 614.5MB in the end (delta: 434.1MB). Free memory was 122.7MB in the beginning and 254.1MB in the end (delta: -131.4MB). Peak memory consumption was 303.6MB. Max. memory is 8.0GB. [2022-09-16 11:34:02,687 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 180.4MB. Free memory was 140.4MB in the beginning and 140.3MB in the end (delta: 81.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:34:02,687 INFO L158 Benchmark]: CACSL2BoogieTranslator took 539.72ms. Allocated memory is still 180.4MB. Free memory was 122.5MB in the beginning and 142.1MB in the end (delta: -19.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-09-16 11:34:02,687 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.51ms. Allocated memory is still 180.4MB. Free memory was 142.1MB in the beginning and 139.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:02,688 INFO L158 Benchmark]: Boogie Preprocessor took 40.23ms. Allocated memory is still 180.4MB. Free memory was 139.5MB in the beginning and 137.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:34:02,688 INFO L158 Benchmark]: RCFGBuilder took 957.77ms. Allocated memory was 180.4MB in the beginning and 240.1MB in the end (delta: 59.8MB). Free memory was 137.1MB in the beginning and 141.4MB in the end (delta: -4.3MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2022-09-16 11:34:02,688 INFO L158 Benchmark]: TraceAbstraction took 4367.14ms. Allocated memory was 240.1MB in the beginning and 614.5MB in the end (delta: 374.3MB). Free memory was 140.4MB in the beginning and 254.1MB in the end (delta: -113.7MB). Peak memory consumption was 260.6MB. Max. memory is 8.0GB. [2022-09-16 11:34:02,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 180.4MB. Free memory was 140.4MB in the beginning and 140.3MB in the end (delta: 81.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 539.72ms. Allocated memory is still 180.4MB. Free memory was 122.5MB in the beginning and 142.1MB in the end (delta: -19.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 44.51ms. Allocated memory is still 180.4MB. Free memory was 142.1MB in the beginning and 139.5MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 40.23ms. Allocated memory is still 180.4MB. Free memory was 139.5MB in the beginning and 137.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 957.77ms. Allocated memory was 180.4MB in the beginning and 240.1MB in the end (delta: 59.8MB). Free memory was 137.1MB in the beginning and 141.4MB in the end (delta: -4.3MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. * TraceAbstraction took 4367.14ms. Allocated memory was 240.1MB in the beginning and 614.5MB in the end (delta: 374.3MB). Free memory was 140.4MB in the beginning and 254.1MB in the end (delta: -113.7MB). Peak memory consumption was 260.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 769]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 789]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 809]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 809]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 842]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 842]: 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, 183 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: 4.2s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 183 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 183 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 104 mSDsCounter, 59 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 298 IncrementalHoareTripleChecker+Invalid, 357 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 59 mSolverCounterUnsat, 17 mSDtfsCounter, 298 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=386occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 334 NumberOfCodeBlocks, 334 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 329 ConstructedInterpolants, 0 QuantifiedInterpolants, 907 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 11:34:02,717 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...