/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-VariableLbe.epf --traceabstraction.order.of.the.error.locations.to.be.checked INSUFFICIENT_FIRST -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/pthread-wmm/rfi005.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-ac9dbd0-m [2023-08-27 03:51:01,187 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-08-27 03:51:01,277 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-VariableLbe.epf [2023-08-27 03:51:01,281 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-08-27 03:51:01,282 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-08-27 03:51:01,312 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-27 03:51:01,313 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-27 03:51:01,313 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-27 03:51:01,314 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-27 03:51:01,317 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-08-27 03:51:01,318 INFO L153 SettingsManager]: * Use SBE=true [2023-08-27 03:51:01,318 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-27 03:51:01,318 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-27 03:51:01,319 INFO L153 SettingsManager]: * sizeof long=4 [2023-08-27 03:51:01,319 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-27 03:51:01,320 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-08-27 03:51:01,320 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-08-27 03:51:01,320 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-27 03:51:01,320 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-27 03:51:01,320 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-27 03:51:01,321 INFO L153 SettingsManager]: * sizeof long double=12 [2023-08-27 03:51:01,321 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-08-27 03:51:01,322 INFO L153 SettingsManager]: * Use constant arrays=true [2023-08-27 03:51:01,322 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-27 03:51:01,322 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-27 03:51:01,322 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-08-27 03:51:01,323 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-27 03:51:01,323 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:51:01,323 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-27 03:51:01,323 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-27 03:51:01,324 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-27 03:51:01,324 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-27 03:51:01,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-27 03:51:01,325 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-27 03:51:01,325 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-27 03:51:01,325 INFO L153 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Order of the error locations to be checked -> INSUFFICIENT_FIRST Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2023-08-27 03:51:01,626 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-27 03:51:01,647 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-27 03:51:01,649 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-27 03:51:01,650 INFO L270 PluginConnector]: Initializing CDTParser... [2023-08-27 03:51:01,650 INFO L274 PluginConnector]: CDTParser initialized [2023-08-27 03:51:01,651 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/rfi005.i [2023-08-27 03:51:02,849 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-08-27 03:51:03,122 INFO L384 CDTParser]: Found 1 translation units. [2023-08-27 03:51:03,123 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/rfi005.i [2023-08-27 03:51:03,135 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137a1ca6a/9ad38e30dc934bbe98bf3caba108cfb8/FLAG63b932d47 [2023-08-27 03:51:03,148 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/137a1ca6a/9ad38e30dc934bbe98bf3caba108cfb8 [2023-08-27 03:51:03,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-27 03:51:03,151 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-08-27 03:51:03,152 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-27 03:51:03,152 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-27 03:51:03,155 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-27 03:51:03,155 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:51:03" (1/1) ... [2023-08-27 03:51:03,156 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68593246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03, skipping insertion in model container [2023-08-27 03:51:03,156 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:51:03" (1/1) ... [2023-08-27 03:51:03,195 INFO L176 MainTranslator]: Built tables and reachable declarations [2023-08-27 03:51:03,607 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:51:03,616 INFO L201 MainTranslator]: Completed pre-run [2023-08-27 03:51:03,646 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [268] [2023-08-27 03:51:03,648 WARN L75 lationResultReporter]: Unsoundness Warning: unspecified type, defaulting to int C: short [268] [2023-08-27 03:51:03,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-27 03:51:03,728 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 03:51:03,728 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-08-27 03:51:03,734 INFO L206 MainTranslator]: Completed translation [2023-08-27 03:51:03,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03 WrapperNode [2023-08-27 03:51:03,734 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-27 03:51:03,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-27 03:51:03,736 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-27 03:51:03,736 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-27 03:51:03,741 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03" (1/1) ... [2023-08-27 03:51:03,771 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03" (1/1) ... [2023-08-27 03:51:03,807 INFO L138 Inliner]: procedures = 175, calls = 49, calls flagged for inlining = 7, calls inlined = 9, statements flattened = 179 [2023-08-27 03:51:03,808 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-27 03:51:03,808 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-27 03:51:03,808 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-27 03:51:03,808 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-08-27 03:51:03,817 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03" (1/1) ... [2023-08-27 03:51:03,818 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03" (1/1) ... [2023-08-27 03:51:03,834 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03" (1/1) ... [2023-08-27 03:51:03,834 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03" (1/1) ... [2023-08-27 03:51:03,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03" (1/1) ... [2023-08-27 03:51:03,843 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03" (1/1) ... [2023-08-27 03:51:03,865 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03" (1/1) ... [2023-08-27 03:51:03,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03" (1/1) ... [2023-08-27 03:51:03,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-27 03:51:03,870 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-27 03:51:03,870 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-08-27 03:51:03,870 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-08-27 03:51:03,871 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03" (1/1) ... [2023-08-27 03:51:03,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-27 03:51:03,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-27 03:51:03,909 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) [2023-08-27 03:51:03,914 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 [2023-08-27 03:51:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-27 03:51:03,946 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-08-27 03:51:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-27 03:51:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-27 03:51:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-27 03:51:03,947 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-08-27 03:51:03,947 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-08-27 03:51:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-08-27 03:51:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-08-27 03:51:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-27 03:51:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-08-27 03:51:03,948 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-27 03:51:03,948 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-27 03:51:03,950 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-27 03:51:04,102 INFO L236 CfgBuilder]: Building ICFG [2023-08-27 03:51:04,104 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-27 03:51:04,467 INFO L277 CfgBuilder]: Performing block encoding [2023-08-27 03:51:04,634 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-27 03:51:04,635 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-27 03:51:04,637 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:51:04 BoogieIcfgContainer [2023-08-27 03:51:04,637 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-27 03:51:04,638 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-27 03:51:04,638 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-08-27 03:51:04,641 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-08-27 03:51:04,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 03:51:03" (1/3) ... [2023-08-27 03:51:04,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1116dd3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:51:04, skipping insertion in model container [2023-08-27 03:51:04,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:51:03" (2/3) ... [2023-08-27 03:51:04,642 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1116dd3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 03:51:04, skipping insertion in model container [2023-08-27 03:51:04,642 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:51:04" (3/3) ... [2023-08-27 03:51:04,643 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi005.i [2023-08-27 03:51:04,657 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-27 03:51:04,658 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2023-08-27 03:51:04,658 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-27 03:51:04,708 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-08-27 03:51:04,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 103 places, 99 transitions, 208 flow [2023-08-27 03:51:04,778 INFO L124 PetriNetUnfolderBase]: 3/97 cut-off events. [2023-08-27 03:51:04,779 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:51:04,784 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 3/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 70 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2023-08-27 03:51:04,784 INFO L82 GeneralOperation]: Start removeDead. Operand has 103 places, 99 transitions, 208 flow [2023-08-27 03:51:04,788 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 97 transitions, 200 flow [2023-08-27 03:51:04,791 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-27 03:51:04,806 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 97 transitions, 200 flow [2023-08-27 03:51:04,812 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 97 transitions, 200 flow [2023-08-27 03:51:04,812 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 101 places, 97 transitions, 200 flow [2023-08-27 03:51:04,849 INFO L124 PetriNetUnfolderBase]: 3/97 cut-off events. [2023-08-27 03:51:04,850 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:51:04,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 104 conditions, 97 events. 3/97 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 70 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 61. Up to 2 conditions per place. [2023-08-27 03:51:04,852 INFO L119 LiptonReduction]: Number of co-enabled transitions 1622 [2023-08-27 03:51:08,603 INFO L134 LiptonReduction]: Checked pairs total: 5356 [2023-08-27 03:51:08,604 INFO L136 LiptonReduction]: Total number of compositions: 94 [2023-08-27 03:51:08,625 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-27 03:51:08,632 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;@39600211, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-27 03:51:08,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2023-08-27 03:51:08,636 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-08-27 03:51:08,637 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2023-08-27 03:51:08,637 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-08-27 03:51:08,637 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:51:08,637 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 03:51:08,638 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONASSERT (and 11 more)] === [2023-08-27 03:51:08,642 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:51:08,642 INFO L85 PathProgramCache]: Analyzing trace with hash 555460581, now seen corresponding path program 1 times [2023-08-27 03:51:08,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:51:08,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812004443] [2023-08-27 03:51:08,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:51:08,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:51:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:51:08,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:51:08,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:51:08,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812004443] [2023-08-27 03:51:08,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812004443] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:51:08,956 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:51:08,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 03:51:08,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554730452] [2023-08-27 03:51:08,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:51:08,964 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 03:51:08,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:51:08,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 03:51:08,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 03:51:08,995 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 193 [2023-08-27 03:51:08,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2023-08-27 03:51:08,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:51:08,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 193 [2023-08-27 03:51:08,998 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:51:09,221 INFO L124 PetriNetUnfolderBase]: 251/449 cut-off events. [2023-08-27 03:51:09,221 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2023-08-27 03:51:09,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 903 conditions, 449 events. 251/449 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1801 event pairs, 144 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 893. Up to 256 conditions per place. [2023-08-27 03:51:09,228 INFO L140 encePairwiseOnDemand]: 186/193 looper letters, 35 selfloop transitions, 3 changer transitions 0/39 dead transitions. [2023-08-27 03:51:09,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 39 transitions, 163 flow [2023-08-27 03:51:09,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 03:51:09,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 03:51:09,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 270 transitions. [2023-08-27 03:51:09,247 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.46632124352331605 [2023-08-27 03:51:09,248 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 270 transitions. [2023-08-27 03:51:09,248 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 270 transitions. [2023-08-27 03:51:09,251 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:51:09,253 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 270 transitions. [2023-08-27 03:51:09,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2023-08-27 03:51:09,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-08-27 03:51:09,261 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-08-27 03:51:09,262 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 52 flow. Second operand 3 states and 270 transitions. [2023-08-27 03:51:09,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 39 transitions, 163 flow [2023-08-27 03:51:09,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 39 transitions, 160 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-27 03:51:09,267 INFO L231 Difference]: Finished difference. Result has 31 places, 25 transitions, 75 flow [2023-08-27 03:51:09,268 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=75, PETRI_PLACES=31, PETRI_TRANSITIONS=25} [2023-08-27 03:51:09,271 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2023-08-27 03:51:09,272 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 25 transitions, 75 flow [2023-08-27 03:51:09,272 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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) [2023-08-27 03:51:09,272 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:51:09,272 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-27 03:51:09,273 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-27 03:51:09,274 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONASSERT (and 11 more)] === [2023-08-27 03:51:09,281 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:51:09,281 INFO L85 PathProgramCache]: Analyzing trace with hash 555507379, now seen corresponding path program 1 times [2023-08-27 03:51:09,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:51:09,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465127922] [2023-08-27 03:51:09,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:51:09,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:51:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-27 03:51:09,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-27 03:51:09,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-27 03:51:09,443 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465127922] [2023-08-27 03:51:09,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465127922] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-27 03:51:09,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-27 03:51:09,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-08-27 03:51:09,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779552616] [2023-08-27 03:51:09,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-27 03:51:09,445 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-27 03:51:09,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-27 03:51:09,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-27 03:51:09,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-27 03:51:09,447 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 193 [2023-08-27 03:51:09,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 25 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-08-27 03:51:09,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-27 03:51:09,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 193 [2023-08-27 03:51:09,447 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-27 03:51:09,583 INFO L124 PetriNetUnfolderBase]: 212/401 cut-off events. [2023-08-27 03:51:09,583 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2023-08-27 03:51:09,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 911 conditions, 401 events. 212/401 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1636 event pairs, 18 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 900. Up to 325 conditions per place. [2023-08-27 03:51:09,586 INFO L140 encePairwiseOnDemand]: 190/193 looper letters, 26 selfloop transitions, 2 changer transitions 0/31 dead transitions. [2023-08-27 03:51:09,586 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 31 transitions, 146 flow [2023-08-27 03:51:09,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-27 03:51:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-27 03:51:09,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 264 transitions. [2023-08-27 03:51:09,588 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.45595854922279794 [2023-08-27 03:51:09,588 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 264 transitions. [2023-08-27 03:51:09,588 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 264 transitions. [2023-08-27 03:51:09,588 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-27 03:51:09,588 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 264 transitions. [2023-08-27 03:51:09,589 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2023-08-27 03:51:09,591 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-08-27 03:51:09,591 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 193.0) internal successors, (772), 4 states have internal predecessors, (772), 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) [2023-08-27 03:51:09,591 INFO L175 Difference]: Start difference. First operand has 31 places, 25 transitions, 75 flow. Second operand 3 states and 264 transitions. [2023-08-27 03:51:09,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 31 transitions, 146 flow [2023-08-27 03:51:09,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 31 transitions, 142 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-27 03:51:09,593 INFO L231 Difference]: Finished difference. Result has 31 places, 24 transitions, 74 flow [2023-08-27 03:51:09,593 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=193, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=74, PETRI_PLACES=31, PETRI_TRANSITIONS=24} [2023-08-27 03:51:09,594 INFO L281 CegarLoopForPetriNet]: 30 programPoint places, 1 predicate places. [2023-08-27 03:51:09,594 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 24 transitions, 74 flow [2023-08-27 03:51:09,594 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-08-27 03:51:09,594 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-27 03:51:09,594 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-27 03:51:09,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-27 03:51:09,595 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONASSERT === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONASSERT, P1Err1ASSERT_VIOLATIONASSERT (and 11 more)] === [2023-08-27 03:51:09,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-27 03:51:09,595 INFO L85 PathProgramCache]: Analyzing trace with hash 40860046, now seen corresponding path program 1 times [2023-08-27 03:51:09,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-27 03:51:09,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [716714565] [2023-08-27 03:51:09,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-27 03:51:09,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-27 03:51:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:51:09,609 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-27 03:51:09,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-27 03:51:09,638 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-27 03:51:09,638 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-27 03:51:09,639 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location P1Err1ASSERT_VIOLATIONASSERT (14 of 15 remaining) [2023-08-27 03:51:09,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 15 remaining) [2023-08-27 03:51:09,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 15 remaining) [2023-08-27 03:51:09,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONASSERT (11 of 15 remaining) [2023-08-27 03:51:09,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err1ASSERT_VIOLATIONASSERT (10 of 15 remaining) [2023-08-27 03:51:09,641 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 15 remaining) [2023-08-27 03:51:09,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 15 remaining) [2023-08-27 03:51:09,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (7 of 15 remaining) [2023-08-27 03:51:09,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 15 remaining) [2023-08-27 03:51:09,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 15 remaining) [2023-08-27 03:51:09,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 15 remaining) [2023-08-27 03:51:09,642 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 15 remaining) [2023-08-27 03:51:09,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONASSERT (2 of 15 remaining) [2023-08-27 03:51:09,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 15 remaining) [2023-08-27 03:51:09,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 15 remaining) [2023-08-27 03:51:09,643 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-27 03:51:09,643 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-08-27 03:51:09,648 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-27 03:51:09,649 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-27 03:51:09,672 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 03:51:09 BasicIcfg [2023-08-27 03:51:09,672 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-27 03:51:09,673 INFO L158 Benchmark]: Toolchain (without parser) took 6520.99ms. Allocated memory was 350.2MB in the beginning and 471.9MB in the end (delta: 121.6MB). Free memory was 325.1MB in the beginning and 423.5MB in the end (delta: -98.3MB). Peak memory consumption was 24.9MB. Max. memory is 16.0GB. [2023-08-27 03:51:09,673 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 350.2MB. Free memory was 326.1MB in the beginning and 326.0MB in the end (delta: 176.0kB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 03:51:09,674 INFO L158 Benchmark]: CACSL2BoogieTranslator took 582.37ms. Allocated memory is still 350.2MB. Free memory was 324.7MB in the beginning and 299.9MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-08-27 03:51:09,674 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.23ms. Allocated memory is still 350.2MB. Free memory was 299.9MB in the beginning and 296.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:51:09,674 INFO L158 Benchmark]: Boogie Preprocessor took 61.37ms. Allocated memory is still 350.2MB. Free memory was 296.9MB in the beginning and 294.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-08-27 03:51:09,675 INFO L158 Benchmark]: RCFGBuilder took 766.72ms. Allocated memory is still 350.2MB. Free memory was 294.4MB in the beginning and 293.2MB in the end (delta: 1.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. [2023-08-27 03:51:09,675 INFO L158 Benchmark]: TraceAbstraction took 5033.41ms. Allocated memory was 350.2MB in the beginning and 471.9MB in the end (delta: 121.6MB). Free memory was 292.3MB in the beginning and 423.5MB in the end (delta: -131.1MB). There was no memory consumed. Max. memory is 16.0GB. [2023-08-27 03:51:09,678 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 350.2MB. Free memory was 326.1MB in the beginning and 326.0MB in the end (delta: 176.0kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 582.37ms. Allocated memory is still 350.2MB. Free memory was 324.7MB in the beginning and 299.9MB in the end (delta: 24.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 72.23ms. Allocated memory is still 350.2MB. Free memory was 299.9MB in the beginning and 296.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 61.37ms. Allocated memory is still 350.2MB. Free memory was 296.9MB in the beginning and 294.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 766.72ms. Allocated memory is still 350.2MB. Free memory was 294.4MB in the beginning and 293.2MB in the end (delta: 1.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.0GB. * TraceAbstraction took 5033.41ms. Allocated memory was 350.2MB in the beginning and 471.9MB in the end (delta: 121.6MB). Free memory was 292.3MB in the beginning and 423.5MB in the end (delta: -131.1MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResultAtLocation [Line: 268]: Unsoundness Warning unspecified type, defaulting to int C: short [268] - GenericResultAtLocation [Line: 268]: Unsoundness Warning unspecified type, defaulting to int C: short [268] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 101 PlacesBefore, 30 PlacesAfterwards, 97 TransitionsBefore, 23 TransitionsAfterwards, 1622 CoEnabledTransitionPairs, 6 FixpointIterations, 36 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 3 ChoiceCompositions, 94 TotalNumberOfCompositions, 5356 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2710, independent: 2506, independent conditional: 0, independent unconditional: 2506, dependent: 204, dependent conditional: 0, dependent unconditional: 204, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 912, independent: 871, independent conditional: 0, independent unconditional: 871, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2710, independent: 1635, independent conditional: 0, independent unconditional: 1635, dependent: 163, dependent conditional: 0, dependent unconditional: 163, unknown: 912, unknown conditional: 0, unknown unconditional: 912] , Statistics on independence cache: Total cache size (in pairs): 90, Positive cache size: 69, Positive conditional cache size: 0, Positive unconditional cache size: 69, Negative cache size: 21, Negative conditional cache size: 0, Negative unconditional cache size: 21, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 18]: assertion can be violated assertion can be violated We found a FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p0_EAX = 0; [L713] 0 int __unbuffered_p1_EAX = 0; [L715] 0 int __unbuffered_p1_EBX = 0; [L716] 0 _Bool main$tmp_guard0; [L717] 0 _Bool main$tmp_guard1; [L719] 0 int x = 0; [L721] 0 int y = 0; [L722] 0 _Bool y$flush_delayed; [L723] 0 int y$mem_tmp; [L724] 0 _Bool y$r_buff0_thd0; [L725] 0 _Bool y$r_buff0_thd1; [L726] 0 _Bool y$r_buff0_thd2; [L727] 0 _Bool y$r_buff1_thd0; [L728] 0 _Bool y$r_buff1_thd1; [L729] 0 _Bool y$r_buff1_thd2; [L730] 0 _Bool y$read_delayed; [L731] 0 int *y$read_delayed_var; [L732] 0 int y$w_buff0; [L733] 0 _Bool y$w_buff0_used; [L734] 0 int y$w_buff1; [L735] 0 _Bool y$w_buff1_used; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L834] 0 pthread_t t1665; [L835] FCALL, FORK 0 pthread_create(&t1665, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1665, ((void *)0), P0, ((void *)0))=-1, t1665={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L836] 0 pthread_t t1666; [L837] FCALL, FORK 0 pthread_create(&t1666, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t1666, ((void *)0), P1, ((void *)0))=0, t1665={5:0}, t1666={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, y=0] [L771] 2 y$w_buff1 = y$w_buff0 [L772] 2 y$w_buff0 = 1 [L773] 2 y$w_buff1_used = y$w_buff0_used [L774] 2 y$w_buff0_used = (_Bool)1 [L775] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND FALSE 2 !(!expression) [L775] RET 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L776] 2 y$r_buff1_thd0 = y$r_buff0_thd0 [L777] 2 y$r_buff1_thd1 = y$r_buff0_thd1 [L778] 2 y$r_buff1_thd2 = y$r_buff0_thd2 [L779] 2 y$r_buff0_thd2 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, y=0] [L782] 2 y$w_buff1 = y$w_buff0 [L783] 2 y$w_buff0 = 2 [L784] 2 y$w_buff1_used = y$w_buff0_used [L785] 2 y$w_buff0_used = (_Bool)1 [L786] CALL 2 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L19] COND TRUE 2 !expression [L19] CALL 2 reach_error() [L18] COND FALSE 2 !(0) [L18] 2 __assert_fail ("0", "rfi005.c", 9, __extension__ __PRETTY_FUNCTION__) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p1_EBX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=1, y$w_buff1_used=1, y=0] - UnprovableResult [Line: 764]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 764]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 819]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 819]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 18]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 837]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 835]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 122 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: 4.9s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 15 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 2 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=1, InterpolantAutomatonStates: 6, 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, 0.3s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 RESULT: Ultimate proved your program to be incorrect! [2023-08-27 03:51:09,701 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...