/root/.sdkman/candidates/java/21.0.5-tem/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata ./data -tc ../benchexec/../../../trunk/examples/toolchains/AutomizerCInline_IcfgBuilder.xml -s ../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-4cc0a57-m [2025-04-14 15:46:26,104 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 15:46:26,158 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/gemcutter/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-14 15:46:26,164 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 15:46:26,164 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 15:46:26,182 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 15:46:26,183 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 15:46:26,183 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 15:46:26,183 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 15:46:26,183 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 15:46:26,183 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 15:46:26,183 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 15:46:26,183 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 15:46:26,183 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 15:46:26,184 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 15:46:26,184 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 15:46:26,184 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 15:46:26,184 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 15:46:26,184 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 15:46:26,184 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 15:46:26,184 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 15:46:26,184 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 15:46:26,184 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 15:46:26,184 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 15:46:26,184 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 15:46:26,184 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 15:46:26,184 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 15:46:26,184 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 15:46:26,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 15:46:26,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 15:46:26,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 15:46:26,186 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 15:46:26,186 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 15:46:26,186 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 15:46:26,186 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 15:46:26,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 15:46:26,186 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 15:46:26,186 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 15:46:26,187 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 15:46:26,187 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-14 15:46:26,187 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 15:46:26,187 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 15:46:26,187 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-14 15:46:26,187 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 15:46:26,187 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-14 15:46:26,187 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-14 15:46:26,187 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-14 15:46:26,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-14 15:46:26,360 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 15:46:26,365 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 15:46:26,367 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 15:46:26,368 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 15:46:26,368 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 15:46:26,368 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c [2025-04-14 15:46:27,742 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3733af448/69a184fd3a1c4ba2a8fac2896c9927d0/FLAG1a15955a4 [2025-04-14 15:46:27,928 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 15:46:27,929 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c [2025-04-14 15:46:27,936 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3733af448/69a184fd3a1c4ba2a8fac2896c9927d0/FLAG1a15955a4 [2025-04-14 15:46:28,792 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3733af448/69a184fd3a1c4ba2a8fac2896c9927d0 [2025-04-14 15:46:28,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 15:46:28,796 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 15:46:28,796 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 15:46:28,796 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 15:46:28,799 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 15:46:28,800 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 03:46:28" (1/1) ... [2025-04-14 15:46:28,800 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e9b838e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:28, skipping insertion in model container [2025-04-14 15:46:28,800 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 03:46:28" (1/1) ... [2025-04-14 15:46:28,812 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 15:46:28,983 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c[3882,3895] [2025-04-14 15:46:28,994 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 15:46:29,002 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 15:46:29,030 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c[3882,3895] [2025-04-14 15:46:29,033 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 15:46:29,044 INFO L204 MainTranslator]: Completed translation [2025-04-14 15:46:29,045 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:29 WrapperNode [2025-04-14 15:46:29,045 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 15:46:29,045 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 15:46:29,045 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 15:46:29,046 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 15:46:29,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:29" (1/1) ... [2025-04-14 15:46:29,054 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:29" (1/1) ... [2025-04-14 15:46:29,071 INFO L138 Inliner]: procedures = 24, calls = 24, calls flagged for inlining = 14, calls inlined = 16, statements flattened = 214 [2025-04-14 15:46:29,072 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 15:46:29,072 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 15:46:29,072 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 15:46:29,072 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 15:46:29,078 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:29" (1/1) ... [2025-04-14 15:46:29,078 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:29" (1/1) ... [2025-04-14 15:46:29,085 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:29" (1/1) ... [2025-04-14 15:46:29,085 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:29" (1/1) ... [2025-04-14 15:46:29,093 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:29" (1/1) ... [2025-04-14 15:46:29,094 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:29" (1/1) ... [2025-04-14 15:46:29,095 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:29" (1/1) ... [2025-04-14 15:46:29,095 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:29" (1/1) ... [2025-04-14 15:46:29,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 15:46:29,102 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 15:46:29,102 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 15:46:29,102 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 15:46:29,103 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:29" (1/1) ... [2025-04-14 15:46:29,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 15:46:29,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:46:29,125 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-14 15:46:29,127 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-14 15:46:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 15:46:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-14 15:46:29,142 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-14 15:46:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-14 15:46:29,142 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-14 15:46:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-14 15:46:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-14 15:46:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-14 15:46:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 15:46:29,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 15:46:29,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-14 15:46:29,143 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-14 15:46:29,210 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 15:46:29,211 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 15:46:29,468 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 15:46:29,469 INFO L307 CfgBuilder]: Performing block encoding [2025-04-14 15:46:29,692 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 15:46:29,692 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 15:46:29,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 03:46:29 BoogieIcfgContainer [2025-04-14 15:46:29,692 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 15:46:29,694 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 15:46:29,694 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 15:46:29,697 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 15:46:29,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 03:46:28" (1/3) ... [2025-04-14 15:46:29,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754dbd7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 03:46:29, skipping insertion in model container [2025-04-14 15:46:29,697 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 03:46:29" (2/3) ... [2025-04-14 15:46:29,697 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@754dbd7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 03:46:29, skipping insertion in model container [2025-04-14 15:46:29,698 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 03:46:29" (3/3) ... [2025-04-14 15:46:29,698 INFO L128 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-symm.wvr.c [2025-04-14 15:46:29,707 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 15:46:29,709 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-name-comparator-symm.wvr.c that has 3 procedures, 22 locations, 24 edges, 1 initial locations, 3 loop locations, and 1 error locations. [2025-04-14 15:46:29,709 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 15:46:29,746 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-14 15:46:29,771 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 15:46:29,772 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-14 15:46:29,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:46:29,775 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2025-04-14 15:46:29,776 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2025-04-14 15:46:29,841 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-14 15:46:29,854 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-14 15:46:29,862 INFO L340 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, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, 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;@eb407a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 15:46:29,862 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-14 15:46:30,079 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 15:46:30,079 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:46:30,079 INFO L139 ounterexampleChecker]: Examining path program with hash 1600481206, occurence #1 [2025-04-14 15:46:30,079 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:46:30,080 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:46:30,083 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:46:30,084 INFO L85 PathProgramCache]: Analyzing trace with hash -548423434, now seen corresponding path program 1 times [2025-04-14 15:46:30,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:46:30,089 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529680524] [2025-04-14 15:46:30,089 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:46:30,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:46:30,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-04-14 15:46:30,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-04-14 15:46:30,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:46:30,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:30,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 15:46:30,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:46:30,260 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529680524] [2025-04-14 15:46:30,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529680524] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:46:30,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:46:30,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-14 15:46:30,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849318705] [2025-04-14 15:46:30,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:46:30,265 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-04-14 15:46:30,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:46:30,279 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-04-14 15:46:30,279 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-04-14 15:46:30,280 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:30,281 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:46:30,281 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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) [2025-04-14 15:46:30,281 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:30,319 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:30,319 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 15:46:30,319 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 15:46:30,319 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:46:30,319 INFO L139 ounterexampleChecker]: Examining path program with hash 941595662, occurence #1 [2025-04-14 15:46:30,320 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:46:30,320 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:46:30,320 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:46:30,320 INFO L85 PathProgramCache]: Analyzing trace with hash 864264432, now seen corresponding path program 1 times [2025-04-14 15:46:30,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:46:30,320 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033602483] [2025-04-14 15:46:30,320 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:46:30,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:46:30,330 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-04-14 15:46:30,356 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-04-14 15:46:30,356 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:46:30,356 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:30,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 15:46:30,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:46:30,466 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033602483] [2025-04-14 15:46:30,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033602483] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:46:30,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:46:30,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-14 15:46:30,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684003705] [2025-04-14 15:46:30,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:46:30,467 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-14 15:46:30,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:46:30,467 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-14 15:46:30,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-14 15:46:30,467 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:30,468 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:46:30,468 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 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) [2025-04-14 15:46:30,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:30,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:30,518 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:30,519 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:30,519 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 15:46:30,519 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 15:46:30,519 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:46:30,519 INFO L139 ounterexampleChecker]: Examining path program with hash 941595662, occurence #2 [2025-04-14 15:46:30,519 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 15:46:30,519 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-14 15:46:30,520 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:30,520 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-14 15:46:30,565 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:30,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-14 15:46:30,565 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:30,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-14 15:46:30,565 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:30,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-14 15:46:30,565 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:30,565 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-14 15:46:30,565 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:30,565 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 15:46:30,565 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:46:30,566 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:46:30,566 INFO L85 PathProgramCache]: Analyzing trace with hash -436575719, now seen corresponding path program 1 times [2025-04-14 15:46:30,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:46:30,566 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592207126] [2025-04-14 15:46:30,566 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:46:30,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:46:30,574 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-14 15:46:30,600 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-14 15:46:30,600 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:46:30,600 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 15:46:30,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:46:30,694 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592207126] [2025-04-14 15:46:30,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592207126] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 15:46:30,694 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1583253839] [2025-04-14 15:46:30,694 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:46:30,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:30,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:46:30,696 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 15:46:30,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-14 15:46:30,745 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 19 statements into 1 equivalence classes. [2025-04-14 15:46:30,763 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 19 of 19 statements. [2025-04-14 15:46:30,763 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:46:30,763 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:30,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-14 15:46:30,768 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 15:46:30,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 15:46:30,793 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 15:46:30,805 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 15:46:30,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1583253839] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 15:46:30,806 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 15:46:30,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2025-04-14 15:46:30,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018970687] [2025-04-14 15:46:30,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 15:46:30,806 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-14 15:46:30,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:46:30,807 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-14 15:46:30,807 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2025-04-14 15:46:30,807 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:30,807 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:46:30,807 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.5714285714285716) internal successors, (25), 6 states have internal predecessors, (25), 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) [2025-04-14 15:46:30,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:30,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:30,807 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:30,868 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:30,868 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:30,868 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:30,874 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-04-14 15:46:31,072 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-04-14 15:46:31,072 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 15:46:31,072 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:46:31,072 INFO L139 ounterexampleChecker]: Examining path program with hash 941595662, occurence #3 [2025-04-14 15:46:31,072 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 15:46:31,072 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-14 15:46:31,072 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:31,072 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-14 15:46:31,073 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:31,073 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-14 15:46:31,073 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:31,073 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-14 15:46:31,073 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:31,073 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-14 15:46:31,073 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:31,073 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-14 15:46:31,073 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:31,073 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 15:46:31,073 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:46:31,073 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:46:31,073 INFO L85 PathProgramCache]: Analyzing trace with hash 1915150585, now seen corresponding path program 2 times [2025-04-14 15:46:31,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:46:31,073 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855248647] [2025-04-14 15:46:31,074 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 15:46:31,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:46:31,084 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 21 statements into 2 equivalence classes. [2025-04-14 15:46:31,105 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 18 of 21 statements. [2025-04-14 15:46:31,105 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-14 15:46:31,105 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:31,472 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:31,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:46:31,472 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855248647] [2025-04-14 15:46:31,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855248647] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:46:31,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:46:31,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-14 15:46:31,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24347737] [2025-04-14 15:46:31,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:46:31,473 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 15:46:31,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:46:31,473 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 15:46:31,473 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2025-04-14 15:46:31,473 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:31,473 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:46:31,474 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.1666666666666665) internal successors, (19), 6 states have internal predecessors, (19), 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) [2025-04-14 15:46:31,474 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:31,474 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:31,474 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:31,474 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:31,626 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:31,626 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:31,626 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:31,627 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:31,627 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-14 15:46:31,627 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 15:46:31,627 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:46:31,628 INFO L139 ounterexampleChecker]: Examining path program with hash 557585707, occurence #1 [2025-04-14 15:46:31,628 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:46:31,628 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:46:31,628 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:46:31,628 INFO L85 PathProgramCache]: Analyzing trace with hash -2014911012, now seen corresponding path program 1 times [2025-04-14 15:46:31,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:46:31,628 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401886407] [2025-04-14 15:46:31,628 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:46:31,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:46:31,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-04-14 15:46:31,643 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-04-14 15:46:31,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:46:31,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:31,762 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:31,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:46:31,762 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401886407] [2025-04-14 15:46:31,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401886407] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:46:31,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 15:46:31,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-04-14 15:46:31,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767650141] [2025-04-14 15:46:31,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:46:31,762 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 15:46:31,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:46:31,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 15:46:31,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-04-14 15:46:31,763 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:31,763 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:46:31,763 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 5 states have internal predecessors, (21), 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) [2025-04-14 15:46:31,763 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:31,763 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:31,763 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:31,763 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:31,763 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:31,869 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:31,869 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:31,869 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:31,869 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:31,869 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:31,869 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-14 15:46:31,870 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 15:46:31,870 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:46:31,870 INFO L139 ounterexampleChecker]: Examining path program with hash 1297156357, occurence #1 [2025-04-14 15:46:31,870 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 15:46:31,870 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:46:31,870 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:46:31,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1505610625, now seen corresponding path program 1 times [2025-04-14 15:46:31,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:46:31,870 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52811756] [2025-04-14 15:46:31,870 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:46:31,870 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:46:31,878 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-14 15:46:31,925 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 15:46:31,925 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:46:31,925 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:32,853 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:32,853 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:46:32,853 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52811756] [2025-04-14 15:46:32,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52811756] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 15:46:32,853 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15650067] [2025-04-14 15:46:32,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 15:46:32,853 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:32,853 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:46:32,857 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 15:46:32,858 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-14 15:46:32,906 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 25 statements into 1 equivalence classes. [2025-04-14 15:46:32,928 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 25 of 25 statements. [2025-04-14 15:46:32,928 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:46:32,928 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:32,930 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-04-14 15:46:32,934 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 15:46:33,274 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 106 [2025-04-14 15:46:33,543 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:33,543 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 15:46:35,067 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-14 15:46:35,068 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 308 treesize of output 196 [2025-04-14 15:46:35,331 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:35,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15650067] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 15:46:35,332 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 15:46:35,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 21 [2025-04-14 15:46:35,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336717507] [2025-04-14 15:46:35,332 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 15:46:35,332 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-04-14 15:46:35,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:46:35,333 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-04-14 15:46:35,333 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=351, Unknown=0, NotChecked=0, Total=420 [2025-04-14 15:46:35,333 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:35,333 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:46:35,333 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.9047619047619047) internal successors, (61), 21 states have internal predecessors, (61), 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) [2025-04-14 15:46:35,333 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:35,333 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:35,333 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:35,333 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:35,333 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:35,335 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:35,977 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:35,977 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:35,977 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:35,977 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:35,977 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:35,978 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 15:46:35,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-14 15:46:36,182 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:36,182 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 15:46:36,182 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:46:36,182 INFO L139 ounterexampleChecker]: Examining path program with hash 557585707, occurence #2 [2025-04-14 15:46:36,182 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 15:46:36,182 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-14 15:46:36,182 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:36,182 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-14 15:46:36,182 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:36,183 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-14 15:46:36,183 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:36,183 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-14 15:46:36,183 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:36,183 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-14 15:46:36,183 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:36,183 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-04-14 15:46:36,183 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:36,183 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 15:46:36,183 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:46:36,183 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:46:36,183 INFO L85 PathProgramCache]: Analyzing trace with hash 578514914, now seen corresponding path program 2 times [2025-04-14 15:46:36,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:46:36,183 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254661497] [2025-04-14 15:46:36,183 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 15:46:36,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:46:36,190 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 2 equivalence classes. [2025-04-14 15:46:36,230 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 15:46:36,230 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 15:46:36,230 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:36,669 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:36,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:46:36,670 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254661497] [2025-04-14 15:46:36,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254661497] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 15:46:36,670 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096496959] [2025-04-14 15:46:36,670 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 15:46:36,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:36,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:46:36,672 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 15:46:36,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-14 15:46:36,715 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 27 statements into 2 equivalence classes. [2025-04-14 15:46:36,737 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 27 of 27 statements. [2025-04-14 15:46:36,738 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 15:46:36,738 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:36,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-04-14 15:46:36,740 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 15:46:36,923 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 72 [2025-04-14 15:46:36,996 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:36,996 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 15:46:37,110 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-14 15:46:37,111 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 30 [2025-04-14 15:46:37,178 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:37,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096496959] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 15:46:37,179 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 15:46:37,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 8] total 21 [2025-04-14 15:46:37,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355415981] [2025-04-14 15:46:37,179 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 15:46:37,179 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2025-04-14 15:46:37,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:46:37,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2025-04-14 15:46:37,180 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2025-04-14 15:46:37,180 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:37,180 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:46:37,180 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.7142857142857144) internal successors, (57), 21 states have internal predecessors, (57), 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) [2025-04-14 15:46:37,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:37,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:37,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:37,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:37,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:37,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 15:46:37,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:37,598 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:37,598 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:37,599 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:37,599 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:37,599 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:37,599 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 15:46:37,599 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-14 15:46:37,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-04-14 15:46:37,799 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:37,800 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 15:46:37,800 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:46:37,800 INFO L139 ounterexampleChecker]: Examining path program with hash 1297156357, occurence #2 [2025-04-14 15:46:37,800 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 15:46:37,800 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-14 15:46:37,800 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:37,800 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-14 15:46:37,800 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:37,800 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-14 15:46:37,800 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:37,800 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-14 15:46:37,800 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:37,800 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-04-14 15:46:37,800 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:37,800 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-14 15:46:37,800 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:37,800 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 15:46:37,800 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:46:37,801 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:46:37,801 INFO L85 PathProgramCache]: Analyzing trace with hash -304327419, now seen corresponding path program 3 times [2025-04-14 15:46:37,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:46:37,801 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815897885] [2025-04-14 15:46:37,801 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 15:46:37,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:46:37,808 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 29 statements into 3 equivalence classes. [2025-04-14 15:46:37,838 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 29 of 29 statements. [2025-04-14 15:46:37,839 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-04-14 15:46:37,839 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:38,433 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:38,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:46:38,433 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815897885] [2025-04-14 15:46:38,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1815897885] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 15:46:38,433 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [590013947] [2025-04-14 15:46:38,433 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 15:46:38,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:38,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:46:38,437 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 15:46:38,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-14 15:46:38,492 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 29 statements into 3 equivalence classes. [2025-04-14 15:46:38,517 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 29 of 29 statements. [2025-04-14 15:46:38,517 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-04-14 15:46:38,517 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:38,519 INFO L256 TraceCheckSpWp]: Trace formula consists of 222 conjuncts, 38 conjuncts are in the unsatisfiable core [2025-04-14 15:46:38,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 15:46:38,768 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 116 treesize of output 76 [2025-04-14 15:46:38,970 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:38,970 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 15:46:40,086 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-14 15:46:40,086 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 237 treesize of output 157 [2025-04-14 15:46:40,466 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:40,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [590013947] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 15:46:40,467 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 15:46:40,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 11] total 30 [2025-04-14 15:46:40,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200107166] [2025-04-14 15:46:40,467 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 15:46:40,467 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-04-14 15:46:40,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:46:40,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-04-14 15:46:40,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=772, Unknown=0, NotChecked=0, Total=870 [2025-04-14 15:46:40,468 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:40,468 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:46:40,468 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.433333333333333) internal successors, (73), 30 states have internal predecessors, (73), 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) [2025-04-14 15:46:40,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:40,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:40,468 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:40,469 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:40,469 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:40,469 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 15:46:40,469 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-14 15:46:40,469 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:41,392 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:41,392 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:41,392 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:41,392 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:41,392 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:41,392 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 15:46:41,392 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-14 15:46:41,392 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2025-04-14 15:46:41,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-14 15:46:41,593 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:41,593 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 15:46:41,593 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:46:41,593 INFO L139 ounterexampleChecker]: Examining path program with hash 1297156357, occurence #3 [2025-04-14 15:46:41,593 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 15:46:41,593 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-14 15:46:41,593 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:41,593 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-14 15:46:41,593 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:41,593 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-14 15:46:41,593 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:41,594 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-14 15:46:41,594 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:41,594 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-04-14 15:46:41,594 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:41,594 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-14 15:46:41,594 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:41,594 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-14 15:46:41,594 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:41,594 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 15:46:41,594 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:46:41,594 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:46:41,594 INFO L85 PathProgramCache]: Analyzing trace with hash 453243912, now seen corresponding path program 4 times [2025-04-14 15:46:41,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:46:41,594 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229787743] [2025-04-14 15:46:41,594 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 15:46:41,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:46:41,601 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 31 statements into 2 equivalence classes. [2025-04-14 15:46:41,614 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-04-14 15:46:41,614 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 15:46:41,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:42,044 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 15:46:42,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:46:42,044 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229787743] [2025-04-14 15:46:42,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229787743] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 15:46:42,044 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [638351598] [2025-04-14 15:46:42,044 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 15:46:42,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:42,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:46:42,047 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 15:46:42,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-04-14 15:46:42,097 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 31 statements into 2 equivalence classes. [2025-04-14 15:46:42,123 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 31 of 31 statements. [2025-04-14 15:46:42,123 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 15:46:42,123 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:42,125 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 34 conjuncts are in the unsatisfiable core [2025-04-14 15:46:42,126 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 15:46:42,364 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 112 treesize of output 72 [2025-04-14 15:46:42,404 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-14 15:46:42,404 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 15:46:42,490 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-14 15:46:42,491 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 87 treesize of output 47 [2025-04-14 15:46:42,600 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:42,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [638351598] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 15:46:42,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 15:46:42,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 9] total 28 [2025-04-14 15:46:42,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873738371] [2025-04-14 15:46:42,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 15:46:42,601 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2025-04-14 15:46:42,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:46:42,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2025-04-14 15:46:42,602 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=663, Unknown=0, NotChecked=0, Total=756 [2025-04-14 15:46:42,602 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:42,602 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:46:42,602 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.642857142857143) internal successors, (74), 28 states have internal predecessors, (74), 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) [2025-04-14 15:46:42,602 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:42,602 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:42,602 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:42,602 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:42,602 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:42,602 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 15:46:42,602 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-14 15:46:42,602 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2025-04-14 15:46:42,602 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:43,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:43,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:43,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:43,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:43,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:43,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 15:46:43,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-14 15:46:43,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-14 15:46:43,244 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-14 15:46:43,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-04-14 15:46:43,448 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:43,448 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 15:46:43,448 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:46:43,448 INFO L139 ounterexampleChecker]: Examining path program with hash 557585707, occurence #3 [2025-04-14 15:46:43,448 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 15:46:43,448 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-14 15:46:43,448 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:43,448 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-14 15:46:43,448 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:43,448 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-14 15:46:43,448 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:43,448 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-14 15:46:43,448 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:43,448 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-04-14 15:46:43,448 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:43,448 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-04-14 15:46:43,449 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:43,449 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 15:46:43,449 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:46:43,449 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:46:43,449 INFO L85 PathProgramCache]: Analyzing trace with hash -334526744, now seen corresponding path program 5 times [2025-04-14 15:46:43,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:46:43,449 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247956212] [2025-04-14 15:46:43,449 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 15:46:43,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:46:43,455 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 31 statements into 3 equivalence classes. [2025-04-14 15:46:43,478 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 31 of 31 statements. [2025-04-14 15:46:43,478 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-14 15:46:43,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:43,822 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 15:46:43,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:46:43,822 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247956212] [2025-04-14 15:46:43,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247956212] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 15:46:43,823 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [588147900] [2025-04-14 15:46:43,823 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 15:46:43,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:43,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:46:43,824 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 15:46:43,826 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-04-14 15:46:43,875 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 31 statements into 3 equivalence classes. [2025-04-14 15:46:43,905 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) and asserted 31 of 31 statements. [2025-04-14 15:46:43,906 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s) [2025-04-14 15:46:43,906 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:43,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 29 conjuncts are in the unsatisfiable core [2025-04-14 15:46:43,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 15:46:44,029 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 59 [2025-04-14 15:46:44,065 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:44,065 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 15:46:44,140 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-14 15:46:44,140 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 51 treesize of output 27 [2025-04-14 15:46:44,261 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:44,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [588147900] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 15:46:44,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 15:46:44,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 10] total 24 [2025-04-14 15:46:44,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868437236] [2025-04-14 15:46:44,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 15:46:44,262 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2025-04-14 15:46:44,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:46:44,262 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2025-04-14 15:46:44,262 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=475, Unknown=0, NotChecked=0, Total=552 [2025-04-14 15:46:44,262 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:44,262 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:46:44,263 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.375) internal successors, (57), 24 states have internal predecessors, (57), 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) [2025-04-14 15:46:44,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:44,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:44,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:44,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:44,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:44,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 15:46:44,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-14 15:46:44,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2025-04-14 15:46:44,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-14 15:46:44,263 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:44,950 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:44,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:44,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:44,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:44,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:44,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 15:46:44,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-14 15:46:44,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-14 15:46:44,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 15:46:44,951 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-14 15:46:44,957 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2025-04-14 15:46:45,151 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:45,152 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 15:46:45,152 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:46:45,152 INFO L139 ounterexampleChecker]: Examining path program with hash 1297156357, occurence #4 [2025-04-14 15:46:45,152 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 15:46:45,152 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-14 15:46:45,152 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:45,152 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-14 15:46:45,152 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:45,152 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-14 15:46:45,152 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:45,152 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-04-14 15:46:45,152 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:45,152 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-14 15:46:45,153 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:45,153 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-04-14 15:46:45,153 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:45,153 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 15:46:45,153 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:46:45,153 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:46:45,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1564032373, now seen corresponding path program 6 times [2025-04-14 15:46:45,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:46:45,153 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814883638] [2025-04-14 15:46:45,153 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-14 15:46:45,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:46:45,160 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 33 statements into 4 equivalence classes. [2025-04-14 15:46:45,199 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) and asserted 33 of 33 statements. [2025-04-14 15:46:45,199 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-04-14 15:46:45,199 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:46,236 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2025-04-14 15:46:46,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:46:46,237 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814883638] [2025-04-14 15:46:46,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814883638] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 15:46:46,237 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558952177] [2025-04-14 15:46:46,237 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-14 15:46:46,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:46,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:46:46,239 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 15:46:46,240 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-04-14 15:46:46,288 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 33 statements into 4 equivalence classes. [2025-04-14 15:46:46,319 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) and asserted 33 of 33 statements. [2025-04-14 15:46:46,319 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2025-04-14 15:46:46,319 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:46,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 244 conjuncts, 40 conjuncts are in the unsatisfiable core [2025-04-14 15:46:46,323 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 15:46:46,677 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 203 treesize of output 131 [2025-04-14 15:46:47,041 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:47,041 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 15:46:47,976 INFO L325 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2025-04-14 15:46:47,976 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 265 treesize of output 177 [2025-04-14 15:46:48,222 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:48,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558952177] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 15:46:48,222 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 15:46:48,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 13] total 39 [2025-04-14 15:46:48,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021997864] [2025-04-14 15:46:48,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 15:46:48,223 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2025-04-14 15:46:48,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:46:48,223 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2025-04-14 15:46:48,224 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=1315, Unknown=0, NotChecked=0, Total=1482 [2025-04-14 15:46:48,224 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:48,224 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:46:48,224 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.3076923076923075) internal successors, (90), 39 states have internal predecessors, (90), 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) [2025-04-14 15:46:48,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:48,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:48,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:48,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:48,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:48,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 15:46:48,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-14 15:46:48,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-14 15:46:48,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 15:46:48,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-14 15:46:48,224 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:49,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:49,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:49,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:49,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:49,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:49,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 15:46:49,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-14 15:46:49,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-14 15:46:49,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 15:46:49,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2025-04-14 15:46:49,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-04-14 15:46:49,705 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2025-04-14 15:46:49,900 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2025-04-14 15:46:49,900 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 15:46:49,900 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:46:49,900 INFO L139 ounterexampleChecker]: Examining path program with hash 1297156357, occurence #5 [2025-04-14 15:46:49,900 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 15:46:49,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-14 15:46:49,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:49,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-14 15:46:49,900 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:49,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-14 15:46:49,900 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:49,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-04-14 15:46:49,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:49,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-14 15:46:49,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:49,900 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-04-14 15:46:49,900 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:49,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2025-04-14 15:46:49,901 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:49,901 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-04-14 15:46:49,901 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:49,901 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 15:46:49,901 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:46:49,901 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:46:49,901 INFO L85 PathProgramCache]: Analyzing trace with hash -737404719, now seen corresponding path program 7 times [2025-04-14 15:46:49,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:46:49,901 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373082804] [2025-04-14 15:46:49,901 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-14 15:46:49,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:46:49,909 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-04-14 15:46:49,915 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-04-14 15:46:49,915 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:46:49,915 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:49,982 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 14 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:49,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:46:49,982 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373082804] [2025-04-14 15:46:49,982 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373082804] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 15:46:49,982 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [679085062] [2025-04-14 15:46:49,982 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-14 15:46:49,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:49,982 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:46:49,984 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 15:46:49,985 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-04-14 15:46:50,037 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 37 statements into 1 equivalence classes. [2025-04-14 15:46:50,064 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 37 of 37 statements. [2025-04-14 15:46:50,064 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 15:46:50,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:50,066 INFO L256 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-14 15:46:50,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 15:46:50,087 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2025-04-14 15:46:50,087 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-14 15:46:50,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [679085062] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:46:50,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-14 15:46:50,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 8 [2025-04-14 15:46:50,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370586831] [2025-04-14 15:46:50,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:46:50,087 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 15:46:50,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:46:50,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 15:46:50,088 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2025-04-14 15:46:50,088 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:50,088 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:46:50,088 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 6 states have internal predecessors, (34), 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) [2025-04-14 15:46:50,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:50,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:50,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:50,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:50,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:50,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 15:46:50,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-14 15:46:50,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-14 15:46:50,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 15:46:50,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2025-04-14 15:46:50,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-04-14 15:46:50,088 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:50,726 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:50,727 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:50,727 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:50,727 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:50,727 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:50,727 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 15:46:50,727 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2025-04-14 15:46:50,727 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-14 15:46:50,727 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-04-14 15:46:50,727 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-14 15:46:50,728 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2025-04-14 15:46:50,728 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 15:46:50,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2025-04-14 15:46:50,928 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:50,928 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-14 15:46:50,928 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 15:46:50,929 INFO L139 ounterexampleChecker]: Examining path program with hash 557585707, occurence #4 [2025-04-14 15:46:50,929 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 15:46:50,929 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 3 [2025-04-14 15:46:50,929 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:50,929 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-14 15:46:50,929 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:50,929 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-14 15:46:50,929 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:50,929 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-14 15:46:50,929 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:50,929 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-04-14 15:46:50,929 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 15:46:50,929 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-14 15:46:50,929 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 15:46:50,929 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 15:46:50,929 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 15:46:50,929 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 15:46:50,929 INFO L85 PathProgramCache]: Analyzing trace with hash 269789934, now seen corresponding path program 8 times [2025-04-14 15:46:50,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 15:46:50,929 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098463131] [2025-04-14 15:46:50,930 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 15:46:50,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 15:46:50,936 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-04-14 15:46:50,945 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 35 of 35 statements. [2025-04-14 15:46:50,945 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 15:46:50,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:50,996 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 18 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:50,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 15:46:50,997 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098463131] [2025-04-14 15:46:50,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098463131] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 15:46:50,997 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091727680] [2025-04-14 15:46:50,997 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 15:46:50,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 15:46:50,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 15:46:50,999 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 15:46:51,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2025-04-14 15:46:51,049 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-04-14 15:46:51,075 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 35 of 35 statements. [2025-04-14 15:46:51,075 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 15:46:51,075 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 15:46:51,076 INFO L256 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-04-14 15:46:51,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 15:46:51,100 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2025-04-14 15:46:51,100 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-14 15:46:51,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091727680] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 15:46:51,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-14 15:46:51,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 7 [2025-04-14 15:46:51,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [623847782] [2025-04-14 15:46:51,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 15:46:51,100 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 15:46:51,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 15:46:51,101 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 15:46:51,101 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-04-14 15:46:51,101 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:51,101 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 15:46:51,101 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 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) [2025-04-14 15:46:51,101 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:51,101 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:51,101 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:51,101 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:51,101 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:51,101 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 15:46:51,101 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2025-04-14 15:46:51,101 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-14 15:46:51,101 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2025-04-14 15:46:51,101 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-14 15:46:51,101 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2025-04-14 15:46:51,101 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 15:46:51,101 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:52,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 15:46:52,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-14 15:46:52,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:52,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:52,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 15:46:52,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-14 15:46:52,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2025-04-14 15:46:52,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2025-04-14 15:46:52,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2025-04-14 15:46:52,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2025-04-14 15:46:52,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2025-04-14 15:46:52,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 15:46:52,271 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 15:46:52,273 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-14 15:46:52,273 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-14 15:46:52,273 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-14 15:46:52,279 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2025-04-14 15:46:52,474 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-04-14 15:46:52,477 INFO L422 BasicCegarLoop]: Path program histogram: [8, 2, 1, 1, 1] [2025-04-14 15:46:52,479 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-14 15:46:52,479 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-14 15:46:52,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2025-04-14 15:46:52,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.04 03:46:52 BasicIcfg [2025-04-14 15:46:52,487 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-14 15:46:52,488 INFO L158 Benchmark]: Toolchain (without parser) took 23692.23ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 97.9MB in the beginning and 222.6MB in the end (delta: -124.7MB). Peak memory consumption was 279.1MB. Max. memory is 8.0GB. [2025-04-14 15:46:52,488 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 159.4MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 15:46:52,488 INFO L158 Benchmark]: CACSL2BoogieTranslator took 248.63ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 82.6MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2025-04-14 15:46:52,488 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.43ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 80.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 15:46:52,488 INFO L158 Benchmark]: Boogie Preprocessor took 29.25ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 79.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 15:46:52,489 INFO L158 Benchmark]: IcfgBuilder took 590.54ms. Allocated memory is still 142.6MB. Free memory was 78.4MB in the beginning and 81.3MB in the end (delta: -2.9MB). Peak memory consumption was 61.4MB. Max. memory is 8.0GB. [2025-04-14 15:46:52,489 INFO L158 Benchmark]: TraceAbstraction took 22793.45ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 80.6MB in the beginning and 222.6MB in the end (delta: -142.0MB). Peak memory consumption was 263.9MB. Max. memory is 8.0GB. [2025-04-14 15:46:52,493 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 159.4MB. Free memory is still 86.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 248.63ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 82.6MB in the end (delta: 15.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.43ms. Allocated memory is still 142.6MB. Free memory was 82.6MB in the beginning and 80.1MB in the end (delta: 2.5MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 29.25ms. Allocated memory is still 142.6MB. Free memory was 80.1MB in the beginning and 79.0MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 8.0GB. * IcfgBuilder took 590.54ms. Allocated memory is still 142.6MB. Free memory was 78.4MB in the beginning and 81.3MB in the end (delta: -2.9MB). Peak memory consumption was 61.4MB. Max. memory is 8.0GB. * TraceAbstraction took 22793.45ms. Allocated memory was 142.6MB in the beginning and 545.3MB in the end (delta: 402.7MB). Free memory was 80.6MB in the beginning and 222.6MB in the end (delta: -142.0MB). Peak memory consumption was 263.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1745, independent: 1135, independent conditional: 877, independent unconditional: 258, dependent: 610, dependent conditional: 608, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1137, independent: 1135, independent conditional: 877, independent unconditional: 258, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1137, independent: 1135, independent conditional: 877, independent unconditional: 258, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1137, independent: 1135, independent conditional: 877, independent unconditional: 258, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1137, independent: 1135, independent conditional: 0, independent unconditional: 1135, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1137, independent: 1135, independent conditional: 0, independent unconditional: 1135, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 220, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 220, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 224, independent: 134, independent conditional: 0, independent unconditional: 134, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1137, independent: 917, independent conditional: 0, independent unconditional: 917, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 220, unknown conditional: 0, unknown unconditional: 220] , Statistics on independence cache: Total cache size (in pairs): 220, Positive cache size: 218, Positive conditional cache size: 0, Positive unconditional cache size: 218, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 877, Maximal queried relation: 0, Independence queries for same thread: 608, Persistent sets #1 benchmarks: Persistent set computation time: 0.2s, Number of persistent set computation: 54, Number of trivial persistent sets: 42, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 260, independent: 258, independent conditional: 0, independent unconditional: 258, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1745, independent: 1135, independent conditional: 877, independent unconditional: 258, dependent: 610, dependent conditional: 608, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1137, independent: 1135, independent conditional: 877, independent unconditional: 258, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1137, independent: 1135, independent conditional: 877, independent unconditional: 258, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1137, independent: 1135, independent conditional: 877, independent unconditional: 258, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1137, independent: 1135, independent conditional: 0, independent unconditional: 1135, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1137, independent: 1135, independent conditional: 0, independent unconditional: 1135, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 220, independent: 218, independent conditional: 0, independent unconditional: 218, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 220, independent: 216, independent conditional: 0, independent unconditional: 216, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 224, independent: 134, independent conditional: 0, independent unconditional: 134, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 1137, independent: 917, independent conditional: 0, independent unconditional: 917, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 220, unknown conditional: 0, unknown unconditional: 220] , Statistics on independence cache: Total cache size (in pairs): 220, Positive cache size: 218, Positive conditional cache size: 0, Positive unconditional cache size: 218, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 877, Maximal queried relation: 0, Independence queries for same thread: 608 - PositiveResult [Line: 113]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 34 locations, 42 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 22.6s, OverallIterations: 13, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 7.2s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 180, 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: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 12.3s InterpolantComputationTime, 612 NumberOfCodeBlocks, 609 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 778 ConstructedInterpolants, 0 QuantifiedInterpolants, 10957 SizeOfPredicates, 155 NumberOfNonLiveVariables, 2024 ConjunctsInSsa, 211 ConjunctsInUnsatCore, 29 InterpolantComputations, 6 PerfectInterpolantSequences, 224/405 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, ConComCheckerStatistics: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 45, ConditionCalculationTime [ms]: 0, ConditionCalculations: 30, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-14 15:46:52,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...