/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg true --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/safe012_power.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-wip.dk.empire-owicki-175f719-m [2023-11-30 06:44:22,988 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-30 06:44:23,054 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2023-11-30 06:44:23,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-30 06:44:23,079 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-30 06:44:23,079 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-30 06:44:23,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-30 06:44:23,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-30 06:44:23,081 INFO L153 SettingsManager]: * Use SBE=true [2023-11-30 06:44:23,084 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-30 06:44:23,084 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-30 06:44:23,085 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-30 06:44:23,085 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-30 06:44:23,086 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-30 06:44:23,086 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-30 06:44:23,086 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-30 06:44:23,086 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-30 06:44:23,086 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-30 06:44:23,086 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-30 06:44:23,087 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-30 06:44:23,087 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-30 06:44:23,087 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-30 06:44:23,088 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-30 06:44:23,088 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-30 06:44:23,088 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-30 06:44:23,088 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:44:23,088 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-30 06:44:23,088 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-30 06:44:23,088 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-30 06:44:23,089 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-30 06:44:23,089 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-30 06:44:23,089 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-30 06:44:23,089 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-30 06:44:23,090 INFO L153 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-11-30 06:44:23,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-30 06:44:23,307 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-30 06:44:23,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-30 06:44:23,309 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-30 06:44:23,309 INFO L274 PluginConnector]: CDTParser initialized [2023-11-30 06:44:23,310 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe012_power.oepc.i [2023-11-30 06:44:24,444 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-30 06:44:24,669 INFO L384 CDTParser]: Found 1 translation units. [2023-11-30 06:44:24,669 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe012_power.oepc.i [2023-11-30 06:44:24,686 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f6186796/81b487a043ff482aa4df76cb45ab2c18/FLAG598b46180 [2023-11-30 06:44:24,695 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f6186796/81b487a043ff482aa4df76cb45ab2c18 [2023-11-30 06:44:24,698 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-30 06:44:24,699 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-11-30 06:44:24,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-30 06:44:24,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-30 06:44:24,702 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-30 06:44:24,703 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:44:24" (1/1) ... [2023-11-30 06:44:24,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ac5b9c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:24, skipping insertion in model container [2023-11-30 06:44:24,704 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 06:44:24" (1/1) ... [2023-11-30 06:44:24,745 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-30 06:44:25,066 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:44:25,075 INFO L202 MainTranslator]: Completed pre-run [2023-11-30 06:44:25,131 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-30 06:44:25,166 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:44:25,166 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-30 06:44:25,175 INFO L206 MainTranslator]: Completed translation [2023-11-30 06:44:25,175 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:25 WrapperNode [2023-11-30 06:44:25,176 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-30 06:44:25,177 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-30 06:44:25,177 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-30 06:44:25,177 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-30 06:44:25,181 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:25" (1/1) ... [2023-11-30 06:44:25,192 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:25" (1/1) ... [2023-11-30 06:44:25,222 INFO L138 Inliner]: procedures = 176, calls = 70, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 140 [2023-11-30 06:44:25,222 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-30 06:44:25,223 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-30 06:44:25,223 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-30 06:44:25,223 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-30 06:44:25,229 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:25" (1/1) ... [2023-11-30 06:44:25,229 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:25" (1/1) ... [2023-11-30 06:44:25,232 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:25" (1/1) ... [2023-11-30 06:44:25,232 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:25" (1/1) ... [2023-11-30 06:44:25,238 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:25" (1/1) ... [2023-11-30 06:44:25,239 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:25" (1/1) ... [2023-11-30 06:44:25,241 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:25" (1/1) ... [2023-11-30 06:44:25,242 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:25" (1/1) ... [2023-11-30 06:44:25,244 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-30 06:44:25,245 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-30 06:44:25,245 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-30 06:44:25,245 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-30 06:44:25,245 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:25" (1/1) ... [2023-11-30 06:44:25,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-30 06:44:25,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-30 06:44:25,289 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-30 06:44:25,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-30 06:44:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-30 06:44:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-30 06:44:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-30 06:44:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-30 06:44:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-30 06:44:25,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-30 06:44:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-11-30 06:44:25,319 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-11-30 06:44:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-11-30 06:44:25,319 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-11-30 06:44:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-11-30 06:44:25,319 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-11-30 06:44:25,319 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-30 06:44:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-30 06:44:25,320 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-30 06:44:25,320 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-30 06:44:25,321 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-30 06:44:25,463 INFO L241 CfgBuilder]: Building ICFG [2023-11-30 06:44:25,466 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-30 06:44:25,781 INFO L282 CfgBuilder]: Performing block encoding [2023-11-30 06:44:25,934 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-30 06:44:25,935 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-30 06:44:25,936 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:44:25 BoogieIcfgContainer [2023-11-30 06:44:25,936 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-30 06:44:25,937 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-30 06:44:25,937 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-30 06:44:25,939 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-30 06:44:25,939 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 06:44:24" (1/3) ... [2023-11-30 06:44:25,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f064f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:44:25, skipping insertion in model container [2023-11-30 06:44:25,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 06:44:25" (2/3) ... [2023-11-30 06:44:25,940 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15f064f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 06:44:25, skipping insertion in model container [2023-11-30 06:44:25,940 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 06:44:25" (3/3) ... [2023-11-30 06:44:25,941 INFO L112 eAbstractionObserver]: Analyzing ICFG safe012_power.oepc.i [2023-11-30 06:44:25,952 INFO L197 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-30 06:44:25,952 INFO L156 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-11-30 06:44:25,953 INFO L508 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-30 06:44:25,993 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-11-30 06:44:26,016 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 147 places, 140 transitions, 292 flow [2023-11-30 06:44:26,050 INFO L124 PetriNetUnfolderBase]: 3/137 cut-off events. [2023-11-30 06:44:26,051 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:44:26,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147 conditions, 137 events. 3/137 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/128 useless extension candidates. Maximal degree in co-relation 82. Up to 2 conditions per place. [2023-11-30 06:44:26,055 INFO L82 GeneralOperation]: Start removeDead. Operand has 147 places, 140 transitions, 292 flow [2023-11-30 06:44:26,058 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 144 places, 137 transitions, 283 flow [2023-11-30 06:44:26,064 INFO L361 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-30 06:44:26,068 INFO L362 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@2f2a1900, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-30 06:44:26,068 INFO L363 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-11-30 06:44:26,079 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-30 06:44:26,080 INFO L124 PetriNetUnfolderBase]: 0/67 cut-off events. [2023-11-30 06:44:26,080 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-30 06:44:26,080 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:44:26,080 INFO L232 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] [2023-11-30 06:44:26,081 INFO L425 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:44:26,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:44:26,084 INFO L85 PathProgramCache]: Analyzing trace with hash -891541111, now seen corresponding path program 1 times [2023-11-30 06:44:26,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:44:26,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732266313] [2023-11-30 06:44:26,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:44:26,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:44:26,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:44:26,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 06:44:26,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:44:26,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732266313] [2023-11-30 06:44:26,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732266313] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:44:26,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:44:26,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-30 06:44:26,395 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308821231] [2023-11-30 06:44:26,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:44:26,403 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-30 06:44:26,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:44:26,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-30 06:44:26,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-30 06:44:26,428 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 140 [2023-11-30 06:44:26,433 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 144 places, 137 transitions, 283 flow. Second operand has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:26,433 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:44:26,433 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 140 [2023-11-30 06:44:26,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:44:26,729 INFO L124 PetriNetUnfolderBase]: 444/1133 cut-off events. [2023-11-30 06:44:26,729 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2023-11-30 06:44:26,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1888 conditions, 1133 events. 444/1133 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 7620 event pairs, 101 based on Foata normal form. 163/1044 useless extension candidates. Maximal degree in co-relation 1820. Up to 669 conditions per place. [2023-11-30 06:44:26,744 INFO L140 encePairwiseOnDemand]: 127/140 looper letters, 26 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2023-11-30 06:44:26,745 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 142 transitions, 359 flow [2023-11-30 06:44:26,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-30 06:44:26,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-11-30 06:44:26,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 393 transitions. [2023-11-30 06:44:26,759 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9357142857142857 [2023-11-30 06:44:26,759 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 393 transitions. [2023-11-30 06:44:26,760 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 393 transitions. [2023-11-30 06:44:26,762 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:44:26,764 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 393 transitions. [2023-11-30 06:44:26,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 131.0) internal successors, (393), 3 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:26,772 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) [2023-11-30 06:44:26,772 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) [2023-11-30 06:44:26,776 INFO L307 CegarLoopForPetriNet]: 144 programPoint places, -1 predicate places. [2023-11-30 06:44:26,776 INFO L500 AbstractCegarLoop]: Abstraction has has 143 places, 142 transitions, 359 flow [2023-11-30 06:44:26,777 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.33333333333333) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:26,777 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:44:26,777 INFO L232 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] [2023-11-30 06:44:26,777 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-30 06:44:26,778 INFO L425 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:44:26,778 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:44:26,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1931335545, now seen corresponding path program 1 times [2023-11-30 06:44:26,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:44:26,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861217297] [2023-11-30 06:44:26,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:44:26,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:44:26,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:44:26,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 06:44:26,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:44:26,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861217297] [2023-11-30 06:44:26,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861217297] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:44:26,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:44:26,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:44:26,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287109491] [2023-11-30 06:44:26,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:44:26,943 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:44:26,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:44:26,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:44:26,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:44:26,945 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 140 [2023-11-30 06:44:26,982 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 142 transitions, 359 flow. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:26,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:44:26,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 140 [2023-11-30 06:44:26,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:44:27,127 INFO L124 PetriNetUnfolderBase]: 286/861 cut-off events. [2023-11-30 06:44:27,128 INFO L125 PetriNetUnfolderBase]: For 63/213 co-relation queries the response was YES. [2023-11-30 06:44:27,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1823 conditions, 861 events. 286/861 cut-off events. For 63/213 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 5311 event pairs, 53 based on Foata normal form. 10/755 useless extension candidates. Maximal degree in co-relation 1752. Up to 413 conditions per place. [2023-11-30 06:44:27,133 INFO L140 encePairwiseOnDemand]: 133/140 looper letters, 23 selfloop transitions, 4 changer transitions 0/139 dead transitions. [2023-11-30 06:44:27,134 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 139 transitions, 401 flow [2023-11-30 06:44:27,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:44:27,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:44:27,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 498 transitions. [2023-11-30 06:44:27,135 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8892857142857142 [2023-11-30 06:44:27,135 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 498 transitions. [2023-11-30 06:44:27,135 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 498 transitions. [2023-11-30 06:44:27,136 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:44:27,136 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 498 transitions. [2023-11-30 06:44:27,137 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 124.5) internal successors, (498), 4 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:27,138 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) [2023-11-30 06:44:27,138 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) [2023-11-30 06:44:27,138 INFO L307 CegarLoopForPetriNet]: 144 programPoint places, -1 predicate places. [2023-11-30 06:44:27,138 INFO L500 AbstractCegarLoop]: Abstraction has has 143 places, 139 transitions, 401 flow [2023-11-30 06:44:27,139 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:27,139 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:44:27,139 INFO L232 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] [2023-11-30 06:44:27,139 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-30 06:44:27,139 INFO L425 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:44:27,140 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:44:27,140 INFO L85 PathProgramCache]: Analyzing trace with hash -1137889354, now seen corresponding path program 1 times [2023-11-30 06:44:27,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:44:27,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536991995] [2023-11-30 06:44:27,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:44:27,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:44:27,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:44:27,215 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 06:44:27,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:44:27,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536991995] [2023-11-30 06:44:27,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536991995] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:44:27,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:44:27,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-30 06:44:27,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064198386] [2023-11-30 06:44:27,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:44:27,216 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-30 06:44:27,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:44:27,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-30 06:44:27,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-30 06:44:27,217 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 140 [2023-11-30 06:44:27,218 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 139 transitions, 401 flow. Second operand has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:27,218 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:44:27,218 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 140 [2023-11-30 06:44:27,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:44:27,355 INFO L124 PetriNetUnfolderBase]: 179/816 cut-off events. [2023-11-30 06:44:27,355 INFO L125 PetriNetUnfolderBase]: For 187/335 co-relation queries the response was YES. [2023-11-30 06:44:27,357 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1734 conditions, 816 events. 179/816 cut-off events. For 187/335 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5095 event pairs, 43 based on Foata normal form. 8/774 useless extension candidates. Maximal degree in co-relation 1660. Up to 244 conditions per place. [2023-11-30 06:44:27,360 INFO L140 encePairwiseOnDemand]: 133/140 looper letters, 27 selfloop transitions, 7 changer transitions 3/149 dead transitions. [2023-11-30 06:44:27,360 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 149 transitions, 538 flow [2023-11-30 06:44:27,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-30 06:44:27,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-30 06:44:27,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 508 transitions. [2023-11-30 06:44:27,362 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.9071428571428571 [2023-11-30 06:44:27,362 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 508 transitions. [2023-11-30 06:44:27,362 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 508 transitions. [2023-11-30 06:44:27,362 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:44:27,362 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 508 transitions. [2023-11-30 06:44:27,363 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) [2023-11-30 06:44:27,364 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) [2023-11-30 06:44:27,364 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) [2023-11-30 06:44:27,365 INFO L307 CegarLoopForPetriNet]: 144 programPoint places, 2 predicate places. [2023-11-30 06:44:27,365 INFO L500 AbstractCegarLoop]: Abstraction has has 146 places, 149 transitions, 538 flow [2023-11-30 06:44:27,365 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.5) internal successors, (474), 4 states have internal predecessors, (474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:27,365 INFO L224 CegarLoopForPetriNet]: Found error trace [2023-11-30 06:44:27,365 INFO L232 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] [2023-11-30 06:44:27,366 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-30 06:44:27,366 INFO L425 AbstractCegarLoop]: === Iteration 4 === Targeting P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 11 more)] === [2023-11-30 06:44:27,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-30 06:44:27,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1451303544, now seen corresponding path program 1 times [2023-11-30 06:44:27,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-30 06:44:27,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464828007] [2023-11-30 06:44:27,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-30 06:44:27,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-30 06:44:27,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-30 06:44:27,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-30 06:44:27,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-30 06:44:27,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464828007] [2023-11-30 06:44:27,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464828007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-30 06:44:27,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-30 06:44:27,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-30 06:44:27,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [18310195] [2023-11-30 06:44:27,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-30 06:44:27,512 INFO L576 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-30 06:44:27,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-30 06:44:27,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-30 06:44:27,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-11-30 06:44:27,514 INFO L497 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 140 [2023-11-30 06:44:27,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 149 transitions, 538 flow. Second operand has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:27,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-30 06:44:27,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 140 [2023-11-30 06:44:27,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-30 06:44:27,674 INFO L124 PetriNetUnfolderBase]: 170/820 cut-off events. [2023-11-30 06:44:27,675 INFO L125 PetriNetUnfolderBase]: For 280/516 co-relation queries the response was YES. [2023-11-30 06:44:27,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1952 conditions, 820 events. 170/820 cut-off events. For 280/516 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 5088 event pairs, 25 based on Foata normal form. 14/796 useless extension candidates. Maximal degree in co-relation 1875. Up to 223 conditions per place. [2023-11-30 06:44:27,678 INFO L140 encePairwiseOnDemand]: 133/140 looper letters, 0 selfloop transitions, 0 changer transitions 149/149 dead transitions. [2023-11-30 06:44:27,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 149 transitions, 612 flow [2023-11-30 06:44:27,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-11-30 06:44:27,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-11-30 06:44:27,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 625 transitions. [2023-11-30 06:44:27,680 INFO L542 CegarLoopForPetriNet]: DFA transition density 0.8928571428571429 [2023-11-30 06:44:27,680 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 625 transitions. [2023-11-30 06:44:27,680 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 625 transitions. [2023-11-30 06:44:27,680 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-30 06:44:27,680 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 625 transitions. [2023-11-30 06:44:27,681 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 125.0) internal successors, (625), 5 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:27,682 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) [2023-11-30 06:44:27,684 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) [2023-11-30 06:44:27,685 INFO L307 CegarLoopForPetriNet]: 144 programPoint places, 3 predicate places. [2023-11-30 06:44:27,685 INFO L500 AbstractCegarLoop]: Abstraction has has 147 places, 149 transitions, 612 flow [2023-11-30 06:44:27,685 INFO L501 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 119.0) internal successors, (595), 5 states have internal predecessors, (595), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-30 06:44:27,690 INFO L143 wickiGriesTestDumper]: Dumping Owicki-Gries test to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/safe012_power.oepc.i_BEv2_AllErrorsAtOnce [2023-11-30 06:44:27,715 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 15 remaining) [2023-11-30 06:44:27,715 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-11-30 06:44:27,715 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-11-30 06:44:27,716 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 15 remaining) [2023-11-30 06:44:27,716 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 15 remaining) [2023-11-30 06:44:27,716 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-11-30 06:44:27,716 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 15 remaining) [2023-11-30 06:44:27,716 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 15 remaining) [2023-11-30 06:44:27,716 INFO L810 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-11-30 06:44:27,716 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 15 remaining) [2023-11-30 06:44:27,716 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-11-30 06:44:27,717 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-11-30 06:44:27,717 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 15 remaining) [2023-11-30 06:44:27,717 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-11-30 06:44:27,717 INFO L810 garLoopResultBuilder]: Registering result SAFE for location P2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-11-30 06:44:27,717 WARN L482 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-30 06:44:27,717 INFO L457 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-11-30 06:44:27,721 INFO L222 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-11-30 06:44:27,721 INFO L172 ceAbstractionStarter]: Computing trace abstraction results [2023-11-30 06:44:27,725 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 06:44:27 BasicIcfg [2023-11-30 06:44:27,725 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-11-30 06:44:27,726 INFO L158 Benchmark]: Toolchain (without parser) took 3026.87ms. Allocated memory was 331.4MB in the beginning and 423.6MB in the end (delta: 92.3MB). Free memory was 288.3MB in the beginning and 299.7MB in the end (delta: -11.4MB). Peak memory consumption was 83.9MB. Max. memory is 16.0GB. [2023-11-30 06:44:27,726 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 331.4MB. Free memory is still 287.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-11-30 06:44:27,726 INFO L158 Benchmark]: CACSL2BoogieTranslator took 476.39ms. Allocated memory is still 331.4MB. Free memory was 288.3MB in the beginning and 264.4MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-11-30 06:44:27,727 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.48ms. Allocated memory is still 331.4MB. Free memory was 264.4MB in the beginning and 261.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 06:44:27,727 INFO L158 Benchmark]: Boogie Preprocessor took 21.43ms. Allocated memory is still 331.4MB. Free memory was 261.9MB in the beginning and 259.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-11-30 06:44:27,727 INFO L158 Benchmark]: RCFGBuilder took 691.24ms. Allocated memory was 331.4MB in the beginning and 423.6MB in the end (delta: 92.3MB). Free memory was 259.8MB in the beginning and 353.2MB in the end (delta: -93.4MB). Peak memory consumption was 36.8MB. Max. memory is 16.0GB. [2023-11-30 06:44:27,727 INFO L158 Benchmark]: TraceAbstraction took 1788.13ms. Allocated memory is still 423.6MB. Free memory was 352.1MB in the beginning and 299.7MB in the end (delta: 52.4MB). Peak memory consumption was 53.5MB. Max. memory is 16.0GB. [2023-11-30 06:44:27,729 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 331.4MB. Free memory is still 287.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 476.39ms. Allocated memory is still 331.4MB. Free memory was 288.3MB in the beginning and 264.4MB in the end (delta: 23.9MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.48ms. Allocated memory is still 331.4MB. Free memory was 264.4MB in the beginning and 261.9MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 21.43ms. Allocated memory is still 331.4MB. Free memory was 261.9MB in the beginning and 259.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 691.24ms. Allocated memory was 331.4MB in the beginning and 423.6MB in the end (delta: 92.3MB). Free memory was 259.8MB in the beginning and 353.2MB in the end (delta: -93.4MB). Peak memory consumption was 36.8MB. Max. memory is 16.0GB. * TraceAbstraction took 1788.13ms. Allocated memory is still 423.6MB. Free memory was 352.1MB in the beginning and 299.7MB in the end (delta: 52.4MB). Peak memory consumption was 53.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 787]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 802]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 822]: 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 7 procedures, 171 locations, 15 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: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 60 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 60 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 172 IncrementalHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 4 mSDtfsCounter, 172 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=612occurred in iteration=4, InterpolantAutomatonStates: 16, 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, 0.5s InterpolantComputationTime, 304 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 300 ConstructedInterpolants, 0 QuantifiedInterpolants, 852 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-11-30 06:44:27,757 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...