/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/popl20-more-buffer-mult2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-dev-4cc0a57-m [2025-04-14 16:23:47,287 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-14 16:23:47,342 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 16:23:47,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-14 16:23:47,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-14 16:23:47,365 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-14 16:23:47,365 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-14 16:23:47,365 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-14 16:23:47,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-14 16:23:47,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-14 16:23:47,367 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-14 16:23:47,367 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-14 16:23:47,367 INFO L153 SettingsManager]: * Use SBE=true [2025-04-14 16:23:47,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-14 16:23:47,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-14 16:23:47,367 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-14 16:23:47,367 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-14 16:23:47,367 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-14 16:23:47,367 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-14 16:23:47,367 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-14 16:23:47,368 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 16:23:47,368 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 16:23:47,368 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-14 16:23:47,368 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-14 16:23:47,369 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-14 16:23:47,369 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-14 16:23:47,369 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-14 16:23:47,369 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-14 16:23:47,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-14 16:23:47,369 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-14 16:23:47,369 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-14 16:23:47,369 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-14 16:23:47,369 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 16:23:47,574 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-14 16:23:47,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-14 16:23:47,583 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-14 16:23:47,584 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-14 16:23:47,584 INFO L274 PluginConnector]: CDTParser initialized [2025-04-14 16:23:47,585 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2025-04-14 16:23:48,935 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b2bd07a9/90f1f0872cb14d0783df61e846be0a05/FLAG84ee3d214 [2025-04-14 16:23:49,177 INFO L389 CDTParser]: Found 1 translation units. [2025-04-14 16:23:49,177 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2025-04-14 16:23:49,187 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b2bd07a9/90f1f0872cb14d0783df61e846be0a05/FLAG84ee3d214 [2025-04-14 16:23:51,037 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8b2bd07a9/90f1f0872cb14d0783df61e846be0a05 [2025-04-14 16:23:51,038 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-14 16:23:51,039 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-14 16:23:51,040 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-14 16:23:51,040 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-14 16:23:51,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-14 16:23:51,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 04:23:51" (1/1) ... [2025-04-14 16:23:51,044 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b07ae19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51, skipping insertion in model container [2025-04-14 16:23:51,044 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.04 04:23:51" (1/1) ... [2025-04-14 16:23:51,058 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-14 16:23:51,220 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/popl20-more-buffer-mult2.wvr.c[4151,4164] [2025-04-14 16:23:51,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 16:23:51,238 INFO L200 MainTranslator]: Completed pre-run [2025-04-14 16:23:51,278 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/popl20-more-buffer-mult2.wvr.c[4151,4164] [2025-04-14 16:23:51,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-14 16:23:51,293 INFO L204 MainTranslator]: Completed translation [2025-04-14 16:23:51,295 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51 WrapperNode [2025-04-14 16:23:51,295 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-14 16:23:51,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-14 16:23:51,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-14 16:23:51,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-14 16:23:51,300 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51" (1/1) ... [2025-04-14 16:23:51,308 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51" (1/1) ... [2025-04-14 16:23:51,327 INFO L138 Inliner]: procedures = 26, calls = 56, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 274 [2025-04-14 16:23:51,328 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-14 16:23:51,328 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-14 16:23:51,328 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-14 16:23:51,328 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-14 16:23:51,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51" (1/1) ... [2025-04-14 16:23:51,333 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51" (1/1) ... [2025-04-14 16:23:51,338 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51" (1/1) ... [2025-04-14 16:23:51,339 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51" (1/1) ... [2025-04-14 16:23:51,345 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51" (1/1) ... [2025-04-14 16:23:51,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51" (1/1) ... [2025-04-14 16:23:51,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51" (1/1) ... [2025-04-14 16:23:51,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51" (1/1) ... [2025-04-14 16:23:51,360 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-14 16:23:51,360 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-14 16:23:51,360 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-14 16:23:51,361 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-14 16:23:51,361 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51" (1/1) ... [2025-04-14 16:23:51,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-14 16:23:51,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:23:51,388 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 16:23:51,390 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 16:23:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-14 16:23:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-04-14 16:23:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-04-14 16:23:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-14 16:23:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-14 16:23:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-14 16:23:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-14 16:23:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-04-14 16:23:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-04-14 16:23:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2025-04-14 16:23:51,406 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2025-04-14 16:23:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-14 16:23:51,406 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-14 16:23:51,407 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-14 16:23:51,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-04-14 16:23:51,407 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-14 16:23:51,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-14 16:23:51,407 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 16:23:51,481 INFO L256 CfgBuilder]: Building ICFG [2025-04-14 16:23:51,482 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-14 16:23:51,772 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-14 16:23:51,772 INFO L307 CfgBuilder]: Performing block encoding [2025-04-14 16:23:52,033 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-14 16:23:52,034 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-14 16:23:52,034 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 04:23:52 BoogieIcfgContainer [2025-04-14 16:23:52,034 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-14 16:23:52,035 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-14 16:23:52,035 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-14 16:23:52,038 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-14 16:23:52,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.04 04:23:51" (1/3) ... [2025-04-14 16:23:52,039 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a351625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 04:23:52, skipping insertion in model container [2025-04-14 16:23:52,039 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.04 04:23:51" (2/3) ... [2025-04-14 16:23:52,040 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a351625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.04 04:23:52, skipping insertion in model container [2025-04-14 16:23:52,040 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.04 04:23:52" (3/3) ... [2025-04-14 16:23:52,041 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult2.wvr.c [2025-04-14 16:23:52,052 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-14 16:23:52,054 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-buffer-mult2.wvr.c that has 5 procedures, 43 locations, 44 edges, 1 initial locations, 6 loop locations, and 1 error locations. [2025-04-14 16:23:52,054 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-14 16:23:52,109 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-04-14 16:23:52,142 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 16:23:52,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-14 16:23:52,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:23:52,145 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 16:23:52,146 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 16:23:52,205 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-14 16:23:52,218 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-14 16:23:52,225 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;@65539fc3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-14 16:23:52,225 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-04-14 16:23:53,192 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:23:53,193 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:23:53,193 INFO L139 ounterexampleChecker]: Examining path program with hash 1584272446, occurence #1 [2025-04-14 16:23:53,193 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 16:23:53,193 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:23:53,196 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:23:53,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1822826216, now seen corresponding path program 1 times [2025-04-14 16:23:53,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:23:53,202 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125160800] [2025-04-14 16:23:53,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:23:53,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:53,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-04-14 16:23:53,425 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-04-14 16:23:53,425 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:23:53,425 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:53,899 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 16:23:53,899 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:23:53,900 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125160800] [2025-04-14 16:23:53,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125160800] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 16:23:53,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 16:23:53,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-14 16:23:53,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283618070] [2025-04-14 16:23:53,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 16:23:53,907 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 16:23:53,908 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:23:53,921 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 16:23:53,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 16:23:53,922 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:23:53,923 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:23:53,924 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 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 16:23:53,924 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:23:54,055 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:54,055 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-14 16:23:54,056 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:23:54,056 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:23:54,057 INFO L139 ounterexampleChecker]: Examining path program with hash 1584272446, occurence #2 [2025-04-14 16:23:54,057 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 16:23:54,057 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 16:23:54,057 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 16:23:54,057 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 4 [2025-04-14 16:23:54,066 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:54,066 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 8 [2025-04-14 16:23:54,066 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:54,066 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 12 [2025-04-14 16:23:54,066 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:54,066 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 16 [2025-04-14 16:23:54,067 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:54,067 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 61 [2025-04-14 16:23:54,139 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:23:54,140 INFO L85 PathProgramCache]: Analyzing trace with hash -989459683, now seen corresponding path program 1 times [2025-04-14 16:23:54,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 16:23:54,140 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740912936] [2025-04-14 16:23:54,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:23:54,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:54,156 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 62 statements into 1 equivalence classes. [2025-04-14 16:23:54,190 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 62 of 62 statements. [2025-04-14 16:23:54,190 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:23:54,190 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:54,398 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:54,398 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 16:23:54,398 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740912936] [2025-04-14 16:23:54,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740912936] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 16:23:54,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 16:23:54,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 16:23:54,400 INFO L172 ounterexampleChecker]: Successfully proved commutativity at non-minimality point 61. Constructing proof automaton... [2025-04-14 16:23:54,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 16:23:54,401 INFO L311 artialOrderCegarLoop]: Commutativity proof succeeded, skipping feasibility check. [2025-04-14 16:23:54,401 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-14 16:23:54,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SMTINTERPOL [2025-04-14 16:23:54,401 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-14 16:23:54,401 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-14 16:23:54,402 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:23:54,403 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:23:54,403 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 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 16:23:54,403 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:54,403 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:23:54,510 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:54,511 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:54,511 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-14 16:23:54,511 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:23:54,511 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:23:54,512 INFO L139 ounterexampleChecker]: Examining path program with hash 1584272446, occurence #3 [2025-04-14 16:23:54,512 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 16:23:54,512 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 16:23:54,512 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 16:23:54,512 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 5 [2025-04-14 16:23:54,512 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:54,512 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-14 16:23:54,512 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:54,512 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 13 [2025-04-14 16:23:54,512 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:54,512 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-14 16:23:54,512 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:54,512 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 62 [2025-04-14 16:23:54,582 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:23:54,582 INFO L85 PathProgramCache]: Analyzing trace with hash -1067017645, now seen corresponding path program 1 times [2025-04-14 16:23:54,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 16:23:54,582 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057634273] [2025-04-14 16:23:54,582 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:23:54,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:54,602 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-04-14 16:23:54,644 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-04-14 16:23:54,644 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:23:54,644 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:54,935 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:54,935 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 16:23:54,935 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057634273] [2025-04-14 16:23:54,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057634273] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:23:54,935 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1609909225] [2025-04-14 16:23:54,935 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:23:54,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:54,954 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 63 statements into 1 equivalence classes. [2025-04-14 16:23:55,001 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 63 of 63 statements. [2025-04-14 16:23:55,001 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:23:55,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:55,005 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-14 16:23:55,009 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:23:55,095 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:55,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1609909225] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:23:55,095 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-14 16:23:55,095 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-04-14 16:23:55,096 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-14 16:23:55,096 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 70 [2025-04-14 16:23:55,179 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:23:55,180 INFO L85 PathProgramCache]: Analyzing trace with hash 1182330740, now seen corresponding path program 1 times [2025-04-14 16:23:55,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 16:23:55,180 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139987603] [2025-04-14 16:23:55,180 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:23:55,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:55,193 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-04-14 16:23:55,217 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-04-14 16:23:55,217 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:23:55,217 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:55,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:55,426 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 16:23:55,427 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139987603] [2025-04-14 16:23:55,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139987603] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:23:55,427 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [895862630] [2025-04-14 16:23:55,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:23:55,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:55,446 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 71 statements into 1 equivalence classes. [2025-04-14 16:23:55,473 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 71 of 71 statements. [2025-04-14 16:23:55,473 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:23:55,473 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:55,475 INFO L256 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-14 16:23:55,477 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:23:55,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:55,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [895862630] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:23:55,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-14 16:23:55,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2025-04-14 16:23:55,574 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-14 16:23:55,574 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 90 [2025-04-14 16:23:55,574 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:55,574 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 16:23:55,574 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:23:55,574 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:23:55,574 INFO L85 PathProgramCache]: Analyzing trace with hash -115353378, now seen corresponding path program 1 times [2025-04-14 16:23:55,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:23:55,574 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771837835] [2025-04-14 16:23:55,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:23:55,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:55,590 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-04-14 16:23:55,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-04-14 16:23:55,612 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:23:55,612 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:55,841 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:55,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:23:55,842 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771837835] [2025-04-14 16:23:55,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771837835] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:23:55,842 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916530560] [2025-04-14 16:23:55,842 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:23:55,842 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:23:55,842 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:23:55,846 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 16:23:55,847 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 16:23:55,910 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 94 statements into 1 equivalence classes. [2025-04-14 16:23:55,964 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 94 of 94 statements. [2025-04-14 16:23:55,964 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:23:55,964 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:55,968 INFO L256 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-04-14 16:23:55,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:23:56,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:56,047 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:23:56,165 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:56,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916530560] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:23:56,165 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:23:56,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-04-14 16:23:56,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490046109] [2025-04-14 16:23:56,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:23:56,166 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-04-14 16:23:56,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:23:56,166 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-04-14 16:23:56,166 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2025-04-14 16:23:56,166 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:23:56,167 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:23:56,167 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.25) internal successors, (99), 11 states have internal predecessors, (99), 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 16:23:56,167 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:56,167 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:56,167 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:23:56,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:56,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:56,355 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:23:56,363 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 16:23:56,556 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3,SelfDestructingSolverStorable2,SelfDestructingSolverStorable6,SelfDestructingSolverStorable5 [2025-04-14 16:23:56,556 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:23:56,556 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:23:56,556 INFO L139 ounterexampleChecker]: Examining path program with hash 1584272446, occurence #4 [2025-04-14 16:23:56,557 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 16:23:56,557 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 16:23:56,557 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 16:23:56,557 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 6 [2025-04-14 16:23:56,557 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:56,557 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-14 16:23:56,557 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:56,557 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-14 16:23:56,557 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:56,557 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-14 16:23:56,557 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:56,557 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 63 [2025-04-14 16:23:56,606 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:23:56,606 INFO L85 PathProgramCache]: Analyzing trace with hash -2086527392, now seen corresponding path program 1 times [2025-04-14 16:23:56,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 16:23:56,606 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531602280] [2025-04-14 16:23:56,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:23:56,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:56,615 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-14 16:23:56,630 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-14 16:23:56,630 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:23:56,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:56,814 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:56,814 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 16:23:56,814 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531602280] [2025-04-14 16:23:56,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531602280] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:23:56,814 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [135829637] [2025-04-14 16:23:56,814 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:23:56,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:56,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-14 16:23:56,840 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-14 16:23:56,840 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:23:56,841 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:56,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-14 16:23:56,844 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:23:56,997 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:56,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [135829637] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:23:56,997 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-14 16:23:56,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2025-04-14 16:23:56,997 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-14 16:23:56,997 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 71 [2025-04-14 16:23:57,112 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:23:57,112 INFO L85 PathProgramCache]: Analyzing trace with hash -170951551, now seen corresponding path program 1 times [2025-04-14 16:23:57,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 16:23:57,113 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002597156] [2025-04-14 16:23:57,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:23:57,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:57,127 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-04-14 16:23:57,152 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-04-14 16:23:57,152 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:23:57,152 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:57,379 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:57,380 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 16:23:57,380 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002597156] [2025-04-14 16:23:57,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002597156] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:23:57,380 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1519230712] [2025-04-14 16:23:57,380 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:23:57,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:57,391 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 72 statements into 1 equivalence classes. [2025-04-14 16:23:57,417 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 72 of 72 statements. [2025-04-14 16:23:57,417 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:23:57,417 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:57,419 INFO L256 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-04-14 16:23:57,422 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:23:57,569 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:57,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1519230712] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:23:57,570 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-14 16:23:57,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2025-04-14 16:23:57,570 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-14 16:23:57,570 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 91 [2025-04-14 16:23:57,570 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:23:57,570 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 16:23:57,570 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:23:57,570 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:23:57,570 INFO L85 PathProgramCache]: Analyzing trace with hash 684037111, now seen corresponding path program 2 times [2025-04-14 16:23:57,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:23:57,570 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509907129] [2025-04-14 16:23:57,570 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 16:23:57,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:57,585 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 95 statements into 2 equivalence classes. [2025-04-14 16:23:57,610 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 92 of 95 statements. [2025-04-14 16:23:57,610 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-14 16:23:57,610 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:57,844 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-04-14 16:23:57,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:23:57,845 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509907129] [2025-04-14 16:23:57,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509907129] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 16:23:57,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 16:23:57,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-14 16:23:57,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [81047215] [2025-04-14 16:23:57,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 16:23:57,845 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-14 16:23:57,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:23:57,846 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-14 16:23:57,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2025-04-14 16:23:57,846 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:23:57,846 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:23:57,846 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 4 states have internal predecessors, (62), 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 16:23:57,846 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:57,846 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:57,846 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:23:57,846 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:23:58,014 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:58,014 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:58,014 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:23:58,014 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:23:58,015 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,SelfDestructingSolverStorable7,SelfDestructingSolverStorable10,SelfDestructingSolverStorable11,SelfDestructingSolverStorable9 [2025-04-14 16:23:58,015 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:23:58,015 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:23:58,015 INFO L139 ounterexampleChecker]: Examining path program with hash 294253056, occurence #1 [2025-04-14 16:23:58,015 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 16:23:58,015 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:23:58,015 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:23:58,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1384307173, now seen corresponding path program 3 times [2025-04-14 16:23:58,015 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:23:58,015 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395083395] [2025-04-14 16:23:58,015 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 16:23:58,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:58,028 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 101 statements into 4 equivalence classes. [2025-04-14 16:23:58,044 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) and asserted 56 of 101 statements. [2025-04-14 16:23:58,044 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2025-04-14 16:23:58,044 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:58,244 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2025-04-14 16:23:58,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:23:58,244 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395083395] [2025-04-14 16:23:58,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395083395] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 16:23:58,245 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 16:23:58,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-14 16:23:58,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950194637] [2025-04-14 16:23:58,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 16:23:58,245 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-14 16:23:58,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:23:58,245 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-14 16:23:58,245 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2025-04-14 16:23:58,246 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:23:58,246 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:23:58,246 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.714285714285714) internal successors, (54), 7 states have internal predecessors, (54), 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 16:23:58,246 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:58,246 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:58,246 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:23:58,246 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:23:58,246 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:23:58,763 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:58,763 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:23:58,763 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:23:58,763 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:23:58,763 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:23:58,763 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2025-04-14 16:23:58,764 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:23:58,764 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:23:58,765 INFO L139 ounterexampleChecker]: Examining path program with hash 2110876532, occurence #1 [2025-04-14 16:23:58,765 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 16:23:58,766 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:23:58,766 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:23:58,766 INFO L85 PathProgramCache]: Analyzing trace with hash 744067324, now seen corresponding path program 4 times [2025-04-14 16:23:58,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:23:58,766 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870004872] [2025-04-14 16:23:58,766 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 16:23:58,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:23:58,781 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 104 statements into 2 equivalence classes. [2025-04-14 16:23:58,819 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 104 of 104 statements. [2025-04-14 16:23:58,820 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 16:23:58,820 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:59,213 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 36 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:59,214 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:23:59,214 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870004872] [2025-04-14 16:23:59,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870004872] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:23:59,214 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121344909] [2025-04-14 16:23:59,214 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 16:23:59,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:23:59,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:23:59,216 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 16:23:59,217 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 16:23:59,288 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 104 statements into 2 equivalence classes. [2025-04-14 16:23:59,342 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 104 of 104 statements. [2025-04-14 16:23:59,342 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 16:23:59,342 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:23:59,344 INFO L256 TraceCheckSpWp]: Trace formula consists of 537 conjuncts, 16 conjuncts are in the unsatisfiable core [2025-04-14 16:23:59,348 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:23:59,771 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 40 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:23:59,771 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:24:00,148 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 35 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:24:00,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121344909] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:24:00,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:24:00,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 36 [2025-04-14 16:24:00,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166475799] [2025-04-14 16:24:00,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:24:00,149 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2025-04-14 16:24:00,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:00,150 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2025-04-14 16:24:00,151 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=940, Unknown=0, NotChecked=0, Total=1332 [2025-04-14 16:24:00,151 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:00,151 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:00,151 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 7.405405405405405) internal successors, (274), 36 states have internal predecessors, (274), 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 16:24:00,151 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:00,151 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:00,151 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:00,151 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:00,154 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:00,154 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:00,408 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:00,408 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:00,408 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:00,408 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:00,408 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:00,409 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:00,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2025-04-14 16:24:00,610 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:00,610 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:00,610 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:00,610 INFO L139 ounterexampleChecker]: Examining path program with hash 2110876532, occurence #2 [2025-04-14 16:24:00,610 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 16:24:00,610 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 16:24:00,610 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 16:24:00,610 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 10 [2025-04-14 16:24:00,611 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:00,611 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-14 16:24:00,611 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:00,611 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-14 16:24:00,611 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:00,611 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-14 16:24:00,611 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:00,611 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 87 [2025-04-14 16:24:00,660 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:00,660 INFO L85 PathProgramCache]: Analyzing trace with hash 1143882656, now seen corresponding path program 1 times [2025-04-14 16:24:00,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 16:24:00,661 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966099448] [2025-04-14 16:24:00,661 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:24:00,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:00,674 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-04-14 16:24:00,702 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-04-14 16:24:00,702 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:24:00,702 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:01,033 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 32 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:24:01,034 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 16:24:01,034 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966099448] [2025-04-14 16:24:01,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966099448] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:01,034 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [272125234] [2025-04-14 16:24:01,034 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:24:01,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:01,044 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 88 statements into 1 equivalence classes. [2025-04-14 16:24:01,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 88 of 88 statements. [2025-04-14 16:24:01,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:24:01,086 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:01,088 INFO L256 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-04-14 16:24:01,089 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:01,462 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 36 proven. 21 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-04-14 16:24:01,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [272125234] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:01,462 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-14 16:24:01,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 27 [2025-04-14 16:24:01,462 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-14 16:24:01,463 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 100 [2025-04-14 16:24:01,463 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 16:24:01,463 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 102 [2025-04-14 16:24:01,463 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:01,463 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 16:24:01,463 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:01,463 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:01,463 INFO L85 PathProgramCache]: Analyzing trace with hash 203636540, now seen corresponding path program 5 times [2025-04-14 16:24:01,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:01,463 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640909891] [2025-04-14 16:24:01,463 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 16:24:01,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:01,476 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 108 statements into 4 equivalence classes. [2025-04-14 16:24:01,548 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 108 of 108 statements. [2025-04-14 16:24:01,548 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-04-14 16:24:01,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:01,951 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 21 proven. 39 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2025-04-14 16:24:01,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:01,951 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640909891] [2025-04-14 16:24:01,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640909891] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:01,951 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555125906] [2025-04-14 16:24:01,951 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 16:24:01,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:01,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:24:01,954 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 16:24:01,956 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 16:24:02,022 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 108 statements into 4 equivalence classes. [2025-04-14 16:24:02,107 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) and asserted 108 of 108 statements. [2025-04-14 16:24:02,108 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2025-04-14 16:24:02,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:02,110 INFO L256 TraceCheckSpWp]: Trace formula consists of 573 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-14 16:24:02,112 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:02,324 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 38 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-04-14 16:24:02,324 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:24:02,592 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 11 proven. 28 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2025-04-14 16:24:02,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555125906] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:24:02,593 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:24:02,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10, 10] total 33 [2025-04-14 16:24:02,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1781171] [2025-04-14 16:24:02,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:24:02,593 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2025-04-14 16:24:02,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:02,594 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2025-04-14 16:24:02,595 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=167, Invalid=889, Unknown=0, NotChecked=0, Total=1056 [2025-04-14 16:24:02,595 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:02,595 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:02,595 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 8.030303030303031) internal successors, (265), 33 states have internal predecessors, (265), 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 16:24:02,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:02,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:02,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:02,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:02,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:02,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:02,595 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:02,947 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:02,947 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:02,947 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:02,948 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:02,948 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:02,948 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:02,948 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:02,955 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 16:24:03,148 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14,SelfDestructingSolverStorable15,SelfDestructingSolverStorable16 [2025-04-14 16:24:03,149 INFO L403 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:03,149 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:03,149 INFO L139 ounterexampleChecker]: Examining path program with hash 2110876532, occurence #3 [2025-04-14 16:24:03,149 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 16:24:03,149 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 16:24:03,149 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 16:24:03,149 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 14 [2025-04-14 16:24:03,149 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:03,149 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 18 [2025-04-14 16:24:03,149 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:03,149 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-14 16:24:03,149 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:03,149 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-14 16:24:03,149 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:03,149 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 91 [2025-04-14 16:24:03,185 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:03,186 INFO L85 PathProgramCache]: Analyzing trace with hash 743917897, now seen corresponding path program 1 times [2025-04-14 16:24:03,186 INFO L118 FreeRefinementEngine]: Executing refinement strategy SMTINTERPOL [2025-04-14 16:24:03,186 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1873469734] [2025-04-14 16:24:03,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:24:03,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:03,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-04-14 16:24:03,219 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-04-14 16:24:03,219 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:24:03,219 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:03,503 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 26 proven. 20 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-04-14 16:24:03,504 INFO L136 FreeRefinementEngine]: Strategy SMTINTERPOL found an infeasible trace [2025-04-14 16:24:03,504 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1873469734] [2025-04-14 16:24:03,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1873469734] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:03,504 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolSpWp [1589757221] [2025-04-14 16:24:03,504 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-14 16:24:03,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:03,515 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 92 statements into 1 equivalence classes. [2025-04-14 16:24:03,540 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 92 of 92 statements. [2025-04-14 16:24:03,540 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:24:03,540 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:03,542 INFO L256 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 15 conjuncts are in the unsatisfiable core [2025-04-14 16:24:03,544 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:03,824 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 36 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-04-14 16:24:03,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolSpWp [1589757221] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:03,824 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2025-04-14 16:24:03,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 23 [2025-04-14 16:24:03,824 INFO L195 ounterexampleChecker]: Commutativity condition check failed due to imperfect proof (attempt 1 of 1). [2025-04-14 16:24:03,825 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 104 [2025-04-14 16:24:03,825 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 16:24:03,825 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 106 [2025-04-14 16:24:03,825 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:03,825 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 16:24:03,825 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:03,825 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:03,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1841755618, now seen corresponding path program 6 times [2025-04-14 16:24:03,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:03,825 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993549057] [2025-04-14 16:24:03,825 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-14 16:24:03,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:03,837 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 112 statements into 5 equivalence classes. [2025-04-14 16:24:03,907 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) and asserted 76 of 112 statements. [2025-04-14 16:24:03,907 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2025-04-14 16:24:03,907 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:04,167 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-04-14 16:24:04,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:04,168 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993549057] [2025-04-14 16:24:04,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993549057] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 16:24:04,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-14 16:24:04,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2025-04-14 16:24:04,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205332768] [2025-04-14 16:24:04,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 16:24:04,168 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-04-14 16:24:04,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:04,168 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-04-14 16:24:04,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2025-04-14 16:24:04,169 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:04,169 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:04,169 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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 16:24:04,169 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:04,169 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:04,169 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:04,169 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:04,169 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:04,169 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:04,169 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:04,169 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:04,698 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:04,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:04,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:04,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:04,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:04,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:04,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:04,699 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:04,699 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,SelfDestructingSolverStorable19,SelfDestructingSolverStorable17 [2025-04-14 16:24:04,699 INFO L403 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:04,699 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:04,699 INFO L139 ounterexampleChecker]: Examining path program with hash 826272174, occurence #1 [2025-04-14 16:24:04,699 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 16:24:04,699 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:04,700 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:04,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1263105060, now seen corresponding path program 7 times [2025-04-14 16:24:04,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:04,700 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198496053] [2025-04-14 16:24:04,700 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-14 16:24:04,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:04,710 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-14 16:24:04,722 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-14 16:24:04,722 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:24:04,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:05,175 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-04-14 16:24:05,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:05,175 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198496053] [2025-04-14 16:24:05,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198496053] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:05,175 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594320124] [2025-04-14 16:24:05,175 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-14 16:24:05,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:05,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:24:05,177 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 16:24:05,179 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 16:24:05,250 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-04-14 16:24:05,287 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-04-14 16:24:05,287 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:24:05,287 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:05,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 11 conjuncts are in the unsatisfiable core [2025-04-14 16:24:05,292 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:05,461 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2025-04-14 16:24:05,461 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-04-14 16:24:05,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594320124] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-14 16:24:05,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-04-14 16:24:05,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [10] total 16 [2025-04-14 16:24:05,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415001412] [2025-04-14 16:24:05,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-14 16:24:05,461 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2025-04-14 16:24:05,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:05,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2025-04-14 16:24:05,462 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2025-04-14 16:24:05,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:05,462 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:05,462 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.625) internal successors, (53), 7 states have internal predecessors, (53), 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 16:24:05,462 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:05,462 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:05,462 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:05,462 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:05,462 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:05,462 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:05,462 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:05,462 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:05,462 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:06,110 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:06,110 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:06,110 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:06,110 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:06,110 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:06,110 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:06,110 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:06,110 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:06,111 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:06,117 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2025-04-14 16:24:06,315 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:06,315 INFO L403 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:06,315 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:06,315 INFO L139 ounterexampleChecker]: Examining path program with hash 727190778, occurence #1 [2025-04-14 16:24:06,315 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 16:24:06,315 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:06,315 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:06,315 INFO L85 PathProgramCache]: Analyzing trace with hash 1590790310, now seen corresponding path program 8 times [2025-04-14 16:24:06,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:06,315 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122132690] [2025-04-14 16:24:06,316 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 16:24:06,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:06,326 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 2 equivalence classes. [2025-04-14 16:24:06,342 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 58 of 58 statements. [2025-04-14 16:24:06,343 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 16:24:06,343 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:06,614 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-04-14 16:24:06,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:06,614 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122132690] [2025-04-14 16:24:06,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122132690] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:06,614 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869312670] [2025-04-14 16:24:06,614 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 16:24:06,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:06,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:24:06,616 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 16:24:06,617 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 16:24:06,685 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 58 statements into 2 equivalence classes. [2025-04-14 16:24:06,722 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 58 of 58 statements. [2025-04-14 16:24:06,723 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 16:24:06,723 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:06,724 INFO L256 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 20 conjuncts are in the unsatisfiable core [2025-04-14 16:24:06,725 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:06,972 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-04-14 16:24:06,972 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:24:07,235 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-04-14 16:24:07,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869312670] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:24:07,235 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:24:07,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 11] total 24 [2025-04-14 16:24:07,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314527978] [2025-04-14 16:24:07,236 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:24:07,236 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2025-04-14 16:24:07,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:07,236 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2025-04-14 16:24:07,237 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=511, Unknown=0, NotChecked=0, Total=600 [2025-04-14 16:24:07,237 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:07,237 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:07,237 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 4.36) internal successors, (109), 24 states have internal predecessors, (109), 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 16:24:07,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:07,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:07,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:07,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:07,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:07,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:07,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:07,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:07,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:07,237 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:09,928 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:09,928 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:09,928 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:09,928 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:09,928 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:09,928 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:09,928 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:09,928 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:09,928 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:09,928 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2025-04-14 16:24:09,934 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 16:24:10,129 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:10,129 INFO L403 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:10,129 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:10,129 INFO L139 ounterexampleChecker]: Examining path program with hash 421917537, occurence #1 [2025-04-14 16:24:10,129 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 16:24:10,129 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:10,130 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:10,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1054135726, now seen corresponding path program 9 times [2025-04-14 16:24:10,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:10,130 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005041275] [2025-04-14 16:24:10,130 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 16:24:10,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:10,140 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 76 statements into 5 equivalence classes. [2025-04-14 16:24:10,191 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 73 of 76 statements. [2025-04-14 16:24:10,192 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-04-14 16:24:10,192 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:10,660 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-04-14 16:24:10,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:10,660 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005041275] [2025-04-14 16:24:10,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005041275] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:10,660 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040911644] [2025-04-14 16:24:10,661 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 16:24:10,661 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:10,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:24:10,662 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 16:24:10,664 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 16:24:10,733 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 76 statements into 5 equivalence classes. [2025-04-14 16:24:10,783 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) and asserted 73 of 76 statements. [2025-04-14 16:24:10,783 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2025-04-14 16:24:10,783 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:10,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 27 conjuncts are in the unsatisfiable core [2025-04-14 16:24:10,786 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:11,406 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-04-14 16:24:11,406 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:24:11,840 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2025-04-14 16:24:11,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040911644] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:24:11,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:24:11,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 19, 17] total 46 [2025-04-14 16:24:11,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105150495] [2025-04-14 16:24:11,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:24:11,841 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2025-04-14 16:24:11,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:11,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2025-04-14 16:24:11,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=294, Invalid=1868, Unknown=0, NotChecked=0, Total=2162 [2025-04-14 16:24:11,842 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:11,842 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:11,842 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 4.127659574468085) internal successors, (194), 46 states have internal predecessors, (194), 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 16:24:11,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:11,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:11,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:11,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:11,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:11,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:11,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:11,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:11,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:11,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2025-04-14 16:24:11,842 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:14,524 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:14,525 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:14,525 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:14,525 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:14,525 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:14,525 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:14,525 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:14,525 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:14,525 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:14,525 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2025-04-14 16:24:14,525 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:14,532 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-04-14 16:24:14,729 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:14,729 INFO L403 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:14,729 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:14,729 INFO L139 ounterexampleChecker]: Examining path program with hash -2016628731, occurence #1 [2025-04-14 16:24:14,729 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 16:24:14,729 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:14,729 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:14,730 INFO L85 PathProgramCache]: Analyzing trace with hash -1731127607, now seen corresponding path program 10 times [2025-04-14 16:24:14,730 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:14,730 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412637443] [2025-04-14 16:24:14,730 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 16:24:14,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:14,739 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 85 statements into 2 equivalence classes. [2025-04-14 16:24:14,753 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 85 of 85 statements. [2025-04-14 16:24:14,753 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 16:24:14,753 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:14,972 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 29 proven. 21 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-04-14 16:24:14,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:14,973 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412637443] [2025-04-14 16:24:14,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412637443] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:14,973 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [437857786] [2025-04-14 16:24:14,973 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 16:24:14,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:14,973 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:24:14,975 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 16:24:14,977 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 16:24:15,052 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 85 statements into 2 equivalence classes. [2025-04-14 16:24:15,094 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 85 of 85 statements. [2025-04-14 16:24:15,094 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 16:24:15,094 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:15,096 INFO L256 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-04-14 16:24:15,097 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:15,360 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 40 proven. 10 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-04-14 16:24:15,360 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:24:15,587 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 29 proven. 21 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2025-04-14 16:24:15,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [437857786] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:24:15,587 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:24:15,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 30 [2025-04-14 16:24:15,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96912081] [2025-04-14 16:24:15,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:24:15,588 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2025-04-14 16:24:15,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:15,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2025-04-14 16:24:15,589 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=660, Unknown=0, NotChecked=0, Total=870 [2025-04-14 16:24:15,589 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:15,589 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:15,589 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 5.9) internal successors, (177), 30 states have internal predecessors, (177), 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 16:24:15,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:15,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:15,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:15,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:15,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:15,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:15,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:15,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:15,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:15,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2025-04-14 16:24:15,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:15,589 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:15,732 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:15,732 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:15,732 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:15,732 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:15,732 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:15,732 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:15,732 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:15,732 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:15,733 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:15,733 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2025-04-14 16:24:15,733 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:15,733 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:15,740 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 16:24:15,933 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,SelfDestructingSolverStorable23 [2025-04-14 16:24:15,934 INFO L403 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:15,934 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:15,934 INFO L139 ounterexampleChecker]: Examining path program with hash -2016628731, occurence #2 [2025-04-14 16:24:15,934 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 16:24:15,934 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 16:24:15,934 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 16:24:15,934 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 15 [2025-04-14 16:24:15,934 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:15,934 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-14 16:24:15,934 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:15,934 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-04-14 16:24:15,934 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:15,934 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-04-14 16:24:15,934 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:15,934 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 81 [2025-04-14 16:24:15,934 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:15,934 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 16:24:15,934 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:15,935 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:15,935 INFO L85 PathProgramCache]: Analyzing trace with hash 651399862, now seen corresponding path program 11 times [2025-04-14 16:24:15,935 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:15,935 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277122186] [2025-04-14 16:24:15,935 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 16:24:15,935 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:15,948 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 86 statements into 5 equivalence classes. [2025-04-14 16:24:16,001 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 86 of 86 statements. [2025-04-14 16:24:16,001 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-04-14 16:24:16,001 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:16,371 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 1 proven. 21 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2025-04-14 16:24:16,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:16,371 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277122186] [2025-04-14 16:24:16,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277122186] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:16,371 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [724582455] [2025-04-14 16:24:16,371 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 16:24:16,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:16,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:24:16,373 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 16:24:16,375 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 16:24:16,457 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 86 statements into 5 equivalence classes. [2025-04-14 16:24:16,563 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) and asserted 86 of 86 statements. [2025-04-14 16:24:16,563 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2025-04-14 16:24:16,563 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:16,565 INFO L256 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-04-14 16:24:16,567 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:16,906 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-04-14 16:24:16,907 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:24:17,189 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 1 proven. 39 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2025-04-14 16:24:17,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [724582455] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:24:17,189 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:24:17,189 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 14, 14] total 34 [2025-04-14 16:24:17,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142849682] [2025-04-14 16:24:17,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:24:17,190 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2025-04-14 16:24:17,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:17,190 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2025-04-14 16:24:17,191 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=233, Invalid=957, Unknown=0, NotChecked=0, Total=1190 [2025-04-14 16:24:17,191 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:17,191 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:17,191 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 5.6) internal successors, (196), 34 states have internal predecessors, (196), 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 16:24:17,191 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:17,191 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:17,191 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:17,191 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:17,191 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:17,191 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:17,191 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:17,191 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:17,191 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:17,191 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2025-04-14 16:24:17,191 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:17,191 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:17,191 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:20,086 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:20,086 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:20,086 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:20,086 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:20,086 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:20,087 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:20,087 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:20,087 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:20,087 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:20,087 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:20,087 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:20,087 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:20,087 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:20,093 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 16:24:20,287 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2025-04-14 16:24:20,287 INFO L403 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:20,287 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:20,288 INFO L139 ounterexampleChecker]: Examining path program with hash 1756240185, occurence #1 [2025-04-14 16:24:20,288 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 16:24:20,288 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:20,288 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:20,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1134296669, now seen corresponding path program 12 times [2025-04-14 16:24:20,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:20,288 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608668404] [2025-04-14 16:24:20,288 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-14 16:24:20,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:20,326 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 155 statements into 8 equivalence classes. [2025-04-14 16:24:20,681 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) and asserted 155 of 155 statements. [2025-04-14 16:24:20,681 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2025-04-14 16:24:20,681 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:21,270 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 34 proven. 163 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2025-04-14 16:24:21,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:21,270 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608668404] [2025-04-14 16:24:21,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608668404] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:21,270 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1918583912] [2025-04-14 16:24:21,270 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-14 16:24:21,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:21,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:24:21,272 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 16:24:21,273 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 16:24:21,366 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 155 statements into 8 equivalence classes. [2025-04-14 16:24:21,809 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) and asserted 155 of 155 statements. [2025-04-14 16:24:21,809 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2025-04-14 16:24:21,809 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:21,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 22 conjuncts are in the unsatisfiable core [2025-04-14 16:24:21,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:22,309 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 273 proven. 28 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-04-14 16:24:22,310 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:24:22,850 INFO L134 CoverageAnalysis]: Checked inductivity of 317 backedges. 222 proven. 79 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2025-04-14 16:24:22,850 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1918583912] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:24:22,850 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:24:22,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 19, 19] total 50 [2025-04-14 16:24:22,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721747444] [2025-04-14 16:24:22,850 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:24:22,851 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2025-04-14 16:24:22,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:22,851 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2025-04-14 16:24:22,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=458, Invalid=1992, Unknown=0, NotChecked=0, Total=2450 [2025-04-14 16:24:22,852 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:22,852 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:22,852 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 7.52) internal successors, (376), 50 states have internal predecessors, (376), 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 16:24:22,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:22,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:22,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:22,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:22,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:22,852 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:22,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:22,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:22,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:22,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:22,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:22,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:22,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:22,853 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:23,077 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-14 16:24:23,085 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2025-04-14 16:24:23,277 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,SelfDestructingSolverStorable25 [2025-04-14 16:24:23,278 INFO L403 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:23,278 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:23,278 INFO L139 ounterexampleChecker]: Examining path program with hash 1756240185, occurence #2 [2025-04-14 16:24:23,278 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 16:24:23,278 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 16:24:23,278 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 16:24:23,278 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 19 [2025-04-14 16:24:23,278 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:23,278 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 23 [2025-04-14 16:24:23,278 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:23,278 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 27 [2025-04-14 16:24:23,278 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:23,278 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 31 [2025-04-14 16:24:23,278 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:23,279 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 155 [2025-04-14 16:24:23,279 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:23,279 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 16:24:23,279 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:23,279 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:23,279 INFO L85 PathProgramCache]: Analyzing trace with hash -335000055, now seen corresponding path program 13 times [2025-04-14 16:24:23,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:23,279 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107934835] [2025-04-14 16:24:23,279 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-14 16:24:23,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:23,296 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-04-14 16:24:23,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-04-14 16:24:23,325 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:24:23,325 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:23,901 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 49 proven. 177 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2025-04-14 16:24:23,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:23,901 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107934835] [2025-04-14 16:24:23,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107934835] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:23,901 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605971661] [2025-04-14 16:24:23,901 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-14 16:24:23,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:23,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:24:23,903 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 16:24:23,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2025-04-14 16:24:23,998 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 159 statements into 1 equivalence classes. [2025-04-14 16:24:24,061 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 159 of 159 statements. [2025-04-14 16:24:24,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:24:24,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:24,064 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 18 conjuncts are in the unsatisfiable core [2025-04-14 16:24:24,066 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:24,419 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 264 proven. 21 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-04-14 16:24:24,419 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:24:24,704 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 202 proven. 83 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2025-04-14 16:24:24,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605971661] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:24:24,704 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:24:24,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 42 [2025-04-14 16:24:24,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1927506620] [2025-04-14 16:24:24,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:24:24,705 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2025-04-14 16:24:24,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:24,706 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2025-04-14 16:24:24,706 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=392, Invalid=1330, Unknown=0, NotChecked=0, Total=1722 [2025-04-14 16:24:24,706 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:24,706 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:24,706 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 6.571428571428571) internal successors, (276), 42 states have internal predecessors, (276), 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 16:24:24,706 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:24,706 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:24,706 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:24,706 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:24,706 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:24,706 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:24,706 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:24,706 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:24,706 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:24,707 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:24,707 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:24,707 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:24,707 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:24,707 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-14 16:24:24,707 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:24,883 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-14 16:24:24,884 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-14 16:24:24,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2025-04-14 16:24:25,084 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2025-04-14 16:24:25,085 INFO L403 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:25,085 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:25,085 INFO L139 ounterexampleChecker]: Examining path program with hash 1756240185, occurence #3 [2025-04-14 16:24:25,085 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 16:24:25,085 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 16:24:25,085 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 16:24:25,085 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 20 [2025-04-14 16:24:25,085 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:25,085 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 24 [2025-04-14 16:24:25,085 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:25,085 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 28 [2025-04-14 16:24:25,085 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:25,085 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 32 [2025-04-14 16:24:25,085 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:25,086 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 156 [2025-04-14 16:24:25,086 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:25,086 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 16:24:25,086 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:25,086 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:25,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1147170858, now seen corresponding path program 14 times [2025-04-14 16:24:25,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:25,086 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268045122] [2025-04-14 16:24:25,086 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 16:24:25,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:25,108 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 160 statements into 2 equivalence classes. [2025-04-14 16:24:25,149 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 160 of 160 statements. [2025-04-14 16:24:25,149 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 16:24:25,149 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:25,668 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 89 proven. 179 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2025-04-14 16:24:25,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:25,668 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268045122] [2025-04-14 16:24:25,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268045122] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:25,668 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373681819] [2025-04-14 16:24:25,668 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-14 16:24:25,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:25,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:24:25,671 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 16:24:25,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2025-04-14 16:24:25,765 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 160 statements into 2 equivalence classes. [2025-04-14 16:24:25,835 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 160 of 160 statements. [2025-04-14 16:24:25,836 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-14 16:24:25,836 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:25,839 INFO L256 TraceCheckSpWp]: Trace formula consists of 844 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-04-14 16:24:25,841 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:26,274 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 215 proven. 86 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-04-14 16:24:26,274 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:24:26,758 INFO L134 CoverageAnalysis]: Checked inductivity of 357 backedges. 231 proven. 70 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2025-04-14 16:24:26,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373681819] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:24:26,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:24:26,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 19, 19] total 53 [2025-04-14 16:24:26,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920298899] [2025-04-14 16:24:26,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:24:26,758 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2025-04-14 16:24:26,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:26,759 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2025-04-14 16:24:26,760 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=694, Invalid=2062, Unknown=0, NotChecked=0, Total=2756 [2025-04-14 16:24:26,760 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:26,760 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:26,760 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 6.6415094339622645) internal successors, (352), 53 states have internal predecessors, (352), 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 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-04-14 16:24:26,760 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:27,063 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:27,063 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:27,063 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:27,063 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:27,063 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:27,063 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:27,063 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:27,063 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:27,063 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:27,063 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:27,064 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:27,064 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:27,064 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:27,064 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-14 16:24:27,064 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-14 16:24:27,064 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 16:24:27,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2025-04-14 16:24:27,264 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2025-04-14 16:24:27,264 INFO L403 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:27,264 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:27,265 INFO L139 ounterexampleChecker]: Examining path program with hash 1756240185, occurence #4 [2025-04-14 16:24:27,265 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 16:24:27,265 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 16:24:27,265 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 16:24:27,265 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 21 [2025-04-14 16:24:27,265 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:27,265 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-04-14 16:24:27,265 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:27,265 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 29 [2025-04-14 16:24:27,265 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:27,265 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-14 16:24:27,265 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:27,265 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 157 [2025-04-14 16:24:27,265 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:27,265 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 16:24:27,265 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:27,265 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:27,266 INFO L85 PathProgramCache]: Analyzing trace with hash -150171095, now seen corresponding path program 15 times [2025-04-14 16:24:27,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:27,266 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221596180] [2025-04-14 16:24:27,266 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 16:24:27,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:27,280 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 161 statements into 8 equivalence classes. [2025-04-14 16:24:27,610 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 149 of 161 statements. [2025-04-14 16:24:27,611 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-04-14 16:24:27,611 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:28,181 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 131 proven. 168 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-04-14 16:24:28,181 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:28,181 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221596180] [2025-04-14 16:24:28,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221596180] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:28,182 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716910542] [2025-04-14 16:24:28,182 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-14 16:24:28,182 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:28,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:24:28,183 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 16:24:28,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2025-04-14 16:24:28,284 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 161 statements into 8 equivalence classes. [2025-04-14 16:24:28,844 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) and asserted 149 of 161 statements. [2025-04-14 16:24:28,844 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2025-04-14 16:24:28,844 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:28,848 INFO L256 TraceCheckSpWp]: Trace formula consists of 807 conjuncts, 21 conjuncts are in the unsatisfiable core [2025-04-14 16:24:28,850 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:29,244 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 263 proven. 36 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-04-14 16:24:29,245 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:24:29,667 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 106 proven. 193 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2025-04-14 16:24:29,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716910542] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:24:29,667 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:24:29,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 54 [2025-04-14 16:24:29,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265150233] [2025-04-14 16:24:29,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:24:29,668 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2025-04-14 16:24:29,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:29,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2025-04-14 16:24:29,669 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=560, Invalid=2302, Unknown=0, NotChecked=0, Total=2862 [2025-04-14 16:24:29,669 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:29,669 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:29,669 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 6.055555555555555) internal successors, (327), 54 states have internal predecessors, (327), 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 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 16:24:29,669 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:29,801 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 16:24:29,802 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-14 16:24:29,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2025-04-14 16:24:30,002 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2025-04-14 16:24:30,003 INFO L403 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:30,003 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:30,003 INFO L139 ounterexampleChecker]: Examining path program with hash 1756240185, occurence #5 [2025-04-14 16:24:30,003 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-14 16:24:30,003 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 0 [2025-04-14 16:24:30,003 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-14 16:24:30,003 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 22 [2025-04-14 16:24:30,003 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:30,003 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 26 [2025-04-14 16:24:30,003 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:30,003 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 30 [2025-04-14 16:24:30,003 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:30,003 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 34 [2025-04-14 16:24:30,004 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:30,004 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 158 [2025-04-14 16:24:30,004 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-14 16:24:30,004 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-14 16:24:30,004 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:30,004 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:30,004 INFO L85 PathProgramCache]: Analyzing trace with hash -1713065974, now seen corresponding path program 16 times [2025-04-14 16:24:30,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:30,004 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102846593] [2025-04-14 16:24:30,004 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 16:24:30,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:30,027 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 162 statements into 2 equivalence classes. [2025-04-14 16:24:30,066 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 162 of 162 statements. [2025-04-14 16:24:30,066 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 16:24:30,066 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:30,388 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 19 proven. 84 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2025-04-14 16:24:30,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:30,389 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102846593] [2025-04-14 16:24:30,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102846593] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:30,389 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1060492107] [2025-04-14 16:24:30,389 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-14 16:24:30,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:30,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:24:30,391 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 16:24:30,393 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2025-04-14 16:24:30,501 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 162 statements into 2 equivalence classes. [2025-04-14 16:24:30,574 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 162 of 162 statements. [2025-04-14 16:24:30,574 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-14 16:24:30,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:30,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 862 conjuncts, 24 conjuncts are in the unsatisfiable core [2025-04-14 16:24:30,579 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:30,986 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 274 proven. 45 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-04-14 16:24:30,986 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:24:31,413 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 193 proven. 126 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2025-04-14 16:24:31,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1060492107] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:24:31,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:24:31,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 22, 22] total 44 [2025-04-14 16:24:31,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023129873] [2025-04-14 16:24:31,413 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:24:31,413 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2025-04-14 16:24:31,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:31,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2025-04-14 16:24:31,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=451, Invalid=1441, Unknown=0, NotChecked=0, Total=1892 [2025-04-14 16:24:31,415 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:31,415 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:31,415 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 7.159090909090909) internal successors, (315), 44 states have internal predecessors, (315), 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 16:24:31,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:31,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:31,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:31,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:31,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:31,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:31,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:31,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:31,415 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:31,416 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:31,416 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:31,416 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:31,416 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:31,416 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-14 16:24:31,416 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-04-14 16:24:31,416 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 16:24:31,416 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-14 16:24:31,416 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-14 16:24:31,786 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-14 16:24:31,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2025-04-14 16:24:31,987 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:31,987 INFO L403 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:31,987 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:31,987 INFO L139 ounterexampleChecker]: Examining path program with hash 315314092, occurence #1 [2025-04-14 16:24:31,987 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 16:24:31,987 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:31,988 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:31,988 INFO L85 PathProgramCache]: Analyzing trace with hash 1157853197, now seen corresponding path program 17 times [2025-04-14 16:24:31,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:31,988 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390253474] [2025-04-14 16:24:31,988 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 16:24:31,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:32,002 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 157 statements into 8 equivalence classes. [2025-04-14 16:24:32,130 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 157 of 157 statements. [2025-04-14 16:24:32,131 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-04-14 16:24:32,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:32,748 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 308 trivial. 0 not checked. [2025-04-14 16:24:32,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:32,749 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390253474] [2025-04-14 16:24:32,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390253474] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:32,749 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339771207] [2025-04-14 16:24:32,749 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-14 16:24:32,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:32,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:24:32,750 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 16:24:32,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2025-04-14 16:24:32,854 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 157 statements into 8 equivalence classes. [2025-04-14 16:24:34,181 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) and asserted 157 of 157 statements. [2025-04-14 16:24:34,181 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2025-04-14 16:24:34,181 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:34,188 INFO L256 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 28 conjuncts are in the unsatisfiable core [2025-04-14 16:24:34,190 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:34,814 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 273 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-04-14 16:24:34,814 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:24:35,178 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 0 proven. 102 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2025-04-14 16:24:35,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339771207] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:24:35,178 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:24:35,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 24, 11] total 40 [2025-04-14 16:24:35,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784759809] [2025-04-14 16:24:35,178 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:24:35,178 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2025-04-14 16:24:35,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:35,179 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2025-04-14 16:24:35,179 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=183, Invalid=1457, Unknown=0, NotChecked=0, Total=1640 [2025-04-14 16:24:35,180 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:35,180 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:35,180 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 5.585365853658536) internal successors, (229), 40 states have internal predecessors, (229), 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 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-14 16:24:35,180 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-14 16:24:39,167 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-14 16:24:39,168 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2025-04-14 16:24:39,177 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2025-04-14 16:24:39,368 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:39,368 INFO L403 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:39,368 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:39,369 INFO L139 ounterexampleChecker]: Examining path program with hash 1512923726, occurence #1 [2025-04-14 16:24:39,369 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 16:24:39,369 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:39,369 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:39,369 INFO L85 PathProgramCache]: Analyzing trace with hash 922401951, now seen corresponding path program 18 times [2025-04-14 16:24:39,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:39,369 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416884520] [2025-04-14 16:24:39,369 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-14 16:24:39,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:39,383 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 151 statements into 9 equivalence classes. [2025-04-14 16:24:39,548 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 151 of 151 statements. [2025-04-14 16:24:39,548 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-04-14 16:24:39,548 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:40,172 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 85 refuted. 0 times theorem prover too weak. 369 trivial. 0 not checked. [2025-04-14 16:24:40,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:24:40,172 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416884520] [2025-04-14 16:24:40,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416884520] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:24:40,173 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301791809] [2025-04-14 16:24:40,173 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-14 16:24:40,173 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:40,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:24:40,175 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 16:24:40,176 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2025-04-14 16:24:40,283 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 151 statements into 9 equivalence classes. [2025-04-14 16:24:41,475 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) and asserted 151 of 151 statements. [2025-04-14 16:24:41,475 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2025-04-14 16:24:41,475 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:24:41,480 INFO L256 TraceCheckSpWp]: Trace formula consists of 820 conjuncts, 33 conjuncts are in the unsatisfiable core [2025-04-14 16:24:41,483 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:24:42,013 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 344 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2025-04-14 16:24:42,014 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:24:42,498 INFO L134 CoverageAnalysis]: Checked inductivity of 454 backedges. 0 proven. 299 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2025-04-14 16:24:42,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301791809] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-14 16:24:42,498 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-14 16:24:42,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 23, 20] total 47 [2025-04-14 16:24:42,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513752208] [2025-04-14 16:24:42,498 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-14 16:24:42,499 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2025-04-14 16:24:42,499 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-14 16:24:42,499 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2025-04-14 16:24:42,500 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=336, Invalid=1920, Unknown=0, NotChecked=0, Total=2256 [2025-04-14 16:24:42,500 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:42,500 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-14 16:24:42,500 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.729166666666667) internal successors, (275), 47 states have internal predecessors, (275), 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 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2025-04-14 16:24:42,500 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2025-04-14 16:24:51,713 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2025-04-14 16:24:51,714 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2025-04-14 16:24:51,714 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2025-04-14 16:24:51,723 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2025-04-14 16:24:51,914 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:24:51,914 INFO L403 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-14 16:24:51,914 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-14 16:24:51,915 INFO L139 ounterexampleChecker]: Examining path program with hash -1036866789, occurence #1 [2025-04-14 16:24:51,915 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-14 16:24:51,915 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-14 16:24:51,915 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-14 16:24:51,915 INFO L85 PathProgramCache]: Analyzing trace with hash -761398499, now seen corresponding path program 19 times [2025-04-14 16:24:51,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-14 16:24:51,915 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566930152] [2025-04-14 16:24:51,915 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-14 16:24:51,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-14 16:24:51,933 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-04-14 16:24:52,059 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-04-14 16:24:52,059 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:24:52,059 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:25:19,658 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 111 proven. 440 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-14 16:25:19,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-14 16:25:19,658 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566930152] [2025-04-14 16:25:19,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566930152] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-14 16:25:19,658 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1884671406] [2025-04-14 16:25:19,658 INFO L95 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2025-04-14 16:25:19,659 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:25:19,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-14 16:25:19,660 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-14 16:25:19,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2025-04-14 16:25:19,772 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 157 statements into 1 equivalence classes. [2025-04-14 16:25:19,901 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 157 of 157 statements. [2025-04-14 16:25:19,901 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-14 16:25:19,901 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-14 16:25:19,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 843 conjuncts, 199 conjuncts are in the unsatisfiable core [2025-04-14 16:25:19,912 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-14 16:25:28,910 INFO L325 Elim1Store]: treesize reduction 1336, result has 21.1 percent of original size [2025-04-14 16:25:28,911 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 555 treesize of output 447 [2025-04-14 16:25:28,940 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 352 proven. 190 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2025-04-14 16:25:28,940 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-14 16:26:11,010 WARN L286 SmtUtils]: Spent 31.72s on a formula simplification. DAG size of input: 1692 DAG size of output: 1500 (called from [L 323] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2025-04-14 16:26:11,010 INFO L325 Elim1Store]: treesize reduction 1272, result has 84.2 percent of original size [2025-04-14 16:26:11,011 INFO L354 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 36 select indices, 36 select index equivalence classes, 0 disjoint index pairs (out of 630 index pairs), introduced 36 new quantified variables, introduced 630 case distinctions, treesize of input 557 treesize of output 6865 [2025-04-14 16:33:42,850 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2025-04-14 16:33:42,850 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 101 [2025-04-14 16:33:42,851 WARN L310 FreeRefinementEngine]: Global settings require throwing the following exception [2025-04-14 16:33:42,860 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2025-04-14 16:33:43,051 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-14 16:33:43,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2025-04-14 16:33:43,060 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.push(Scriptor.java:133) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.push(DiffWrapperScript.java:90) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.push(WrapperScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.push(HistoryRecordingScript.java:107) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:48) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.checkRedundancy(SimplifyDDA2.java:275) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convertForPreprocessedInputTerms(SimplifyDDA2.java:499) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:484) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.convert(SimplifyDDA2.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:103) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SimplifyDDA2.simplify(SimplifyDDA2.java:589) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:245) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplifyWithStatistics(SmtUtils.java:318) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify(QuantifierPusher.java:726) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:142) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:223) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:115) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.pushMinionEliminatees(QuantifierPushUtilsForSubsetPush.java:241) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:139) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:191) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:103) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:99) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:305) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:285) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:56) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:234) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:325) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:181) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:160) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:317) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isCounterexampleFeasible(PartialOrderCegarLoop.java:320) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:419) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:349) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:427) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:315) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:239) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:166) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:132) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 69 more [2025-04-14 16:33:43,065 INFO L158 Benchmark]: Toolchain (without parser) took 592025.85ms. Allocated memory was 155.2MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 108.4MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2025-04-14 16:33:43,065 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 16:33:43,066 INFO L158 Benchmark]: CACSL2BoogieTranslator took 254.82ms. Allocated memory is still 155.2MB. Free memory was 108.4MB in the beginning and 92.6MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2025-04-14 16:33:43,066 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.09ms. Allocated memory is still 155.2MB. Free memory was 92.6MB in the beginning and 89.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-14 16:33:43,066 INFO L158 Benchmark]: Boogie Preprocessor took 31.93ms. Allocated memory is still 155.2MB. Free memory was 89.8MB in the beginning and 88.4MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-14 16:33:43,066 INFO L158 Benchmark]: IcfgBuilder took 673.64ms. Allocated memory is still 155.2MB. Free memory was 87.7MB in the beginning and 92.4MB in the end (delta: -4.7MB). Peak memory consumption was 70.7MB. Max. memory is 8.0GB. [2025-04-14 16:33:43,066 INFO L158 Benchmark]: TraceAbstraction took 591029.54ms. Allocated memory was 155.2MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 92.4MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2025-04-14 16:33:43,067 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 159.4MB. Free memory is still 87.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 254.82ms. Allocated memory is still 155.2MB. Free memory was 108.4MB in the beginning and 92.6MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 32.09ms. Allocated memory is still 155.2MB. Free memory was 92.6MB in the beginning and 89.8MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 31.93ms. Allocated memory is still 155.2MB. Free memory was 89.8MB in the beginning and 88.4MB in the end (delta: 1.4MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * IcfgBuilder took 673.64ms. Allocated memory is still 155.2MB. Free memory was 87.7MB in the beginning and 92.4MB in the end (delta: -4.7MB). Peak memory consumption was 70.7MB. Max. memory is 8.0GB. * TraceAbstraction took 591029.54ms. Allocated memory was 155.2MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 92.4MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...