/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/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis FINITE_AUTOMATA --preprocessor.replace.while.statements.and.if-then-else.statements false -i ../../../trunk/examples/svcomp/pthread-wmm/safe029_power.opt_pso.opt_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 21:50:25,719 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 21:50:25,776 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2025-04-13 21:50:25,780 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 21:50:25,780 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 21:50:25,803 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 21:50:25,803 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 21:50:25,803 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 21:50:25,804 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 21:50:25,804 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 21:50:25,804 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 21:50:25,804 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 21:50:25,805 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 21:50:25,805 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 21:50:25,805 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 21:50:25,805 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 21:50:25,806 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:50:25,806 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 21:50:25,806 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 21:50:25,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:50:25,807 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 21:50:25,807 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 21:50:25,807 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 21:50:25,807 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 21:50:25,807 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 21:50:25,807 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 21:50:25,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 21:50:25,807 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 21:50:25,807 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 21:50:25,807 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Automaton type used in concurrency analysis -> FINITE_AUTOMATA Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Replace while statements and if-then-else statements -> false [2025-04-13 21:50:26,032 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 21:50:26,040 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 21:50:26,042 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 21:50:26,043 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 21:50:26,044 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 21:50:26,045 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe029_power.opt_pso.opt_rmo.opt.i [2025-04-13 21:50:27,392 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a31cca1d5/7d65a2a2139246049c87700a3a73ea06/FLAGfa1841288 [2025-04-13 21:50:27,633 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 21:50:27,634 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_power.opt_pso.opt_rmo.opt.i [2025-04-13 21:50:27,646 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a31cca1d5/7d65a2a2139246049c87700a3a73ea06/FLAGfa1841288 [2025-04-13 21:50:28,442 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a31cca1d5/7d65a2a2139246049c87700a3a73ea06 [2025-04-13 21:50:28,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 21:50:28,445 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 21:50:28,446 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 21:50:28,446 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 21:50:28,449 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 21:50:28,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18d28b4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28, skipping insertion in model container [2025-04-13 21:50:28,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,476 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 21:50:28,646 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_power.opt_pso.opt_rmo.opt.i[967,980] [2025-04-13 21:50:28,806 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 21:50:28,814 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 21:50:28,827 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe029_power.opt_pso.opt_rmo.opt.i[967,980] [2025-04-13 21:50:28,880 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 21:50:28,904 INFO L204 MainTranslator]: Completed translation [2025-04-13 21:50:28,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28 WrapperNode [2025-04-13 21:50:28,905 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 21:50:28,905 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 21:50:28,906 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 21:50:28,906 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 21:50:28,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,921 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,939 INFO L138 Inliner]: procedures = 174, calls = 33, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 121 [2025-04-13 21:50:28,940 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 21:50:28,940 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 21:50:28,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 21:50:28,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 21:50:28,946 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,946 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,950 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,963 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2025-04-13 21:50:28,964 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,964 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,967 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,968 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,970 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,971 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,974 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 21:50:28,975 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-04-13 21:50:28,975 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-04-13 21:50:28,975 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-04-13 21:50:28,977 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28" (1/1) ... [2025-04-13 21:50:28,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 21:50:28,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 21:50:29,000 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) [2025-04-13 21:50:29,002 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 [2025-04-13 21:50:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-13 21:50:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 21:50:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2025-04-13 21:50:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2025-04-13 21:50:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2025-04-13 21:50:29,019 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2025-04-13 21:50:29,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 21:50:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-13 21:50:29,020 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 21:50:29,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 21:50:29,021 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 21:50:29,120 INFO L256 CfgBuilder]: Building ICFG [2025-04-13 21:50:29,121 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 21:50:29,333 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 21:50:29,334 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 21:50:29,334 INFO L318 CfgBuilder]: Performing block encoding [2025-04-13 21:50:29,541 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 21:50:29,541 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.04 09:50:29 BoogieIcfgContainer [2025-04-13 21:50:29,541 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-04-13 21:50:29,543 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 21:50:29,543 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 21:50:29,547 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 21:50:29,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 09:50:28" (1/3) ... [2025-04-13 21:50:29,547 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0a0b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 09:50:29, skipping insertion in model container [2025-04-13 21:50:29,547 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 09:50:28" (2/3) ... [2025-04-13 21:50:29,548 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f0a0b41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 09:50:29, skipping insertion in model container [2025-04-13 21:50:29,548 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 13.04 09:50:29" (3/3) ... [2025-04-13 21:50:29,550 INFO L128 eAbstractionObserver]: Analyzing ICFG safe029_power.opt_pso.opt_rmo.opt.i [2025-04-13 21:50:29,561 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 21:50:29,562 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG safe029_power.opt_pso.opt_rmo.opt.i that has 3 procedures, 27 locations, 24 edges, 1 initial locations, 0 loop locations, and 2 error locations. [2025-04-13 21:50:29,562 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 21:50:29,601 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-04-13 21:50:29,622 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 33 places, 26 transitions, 60 flow [2025-04-13 21:50:29,673 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 429 states, 426 states have (on average 2.572769953051643) internal successors, (1096), 428 states have internal predecessors, (1096), 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) [2025-04-13 21:50:29,692 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 21:50:29,703 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=FINITE_AUTOMATA, 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;@4cd126ba, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 21:50:29,703 INFO L341 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2025-04-13 21:50:29,706 INFO L278 IsEmpty]: Start isEmpty. Operand has 429 states, 426 states have (on average 2.572769953051643) internal successors, (1096), 428 states have internal predecessors, (1096), 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) [2025-04-13 21:50:29,710 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2025-04-13 21:50:29,710 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:50:29,711 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2025-04-13 21:50:29,711 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 21:50:29,714 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:50:29,715 INFO L85 PathProgramCache]: Analyzing trace with hash 458187663, now seen corresponding path program 1 times [2025-04-13 21:50:29,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:50:29,720 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353313180] [2025-04-13 21:50:29,720 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:50:29,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:50:29,782 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-04-13 21:50:29,814 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-04-13 21:50:29,815 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:50:29,815 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:50:30,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:50:30,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:50:30,098 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353313180] [2025-04-13 21:50:30,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1353313180] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:50:30,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:50:30,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-04-13 21:50:30,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685562019] [2025-04-13 21:50:30,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:50:30,107 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-13 21:50:30,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:50:30,121 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-13 21:50:30,121 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 21:50:30,124 INFO L87 Difference]: Start difference. First operand has 429 states, 426 states have (on average 2.572769953051643) internal successors, (1096), 428 states have internal predecessors, (1096), 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) Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2025-04-13 21:50:30,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:50:30,266 INFO L93 Difference]: Finished difference Result 429 states and 1096 transitions. [2025-04-13 21:50:30,270 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-13 21:50:30,271 INFO L79 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) Word has length 6 [2025-04-13 21:50:30,271 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:50:30,283 INFO L225 Difference]: With dead ends: 429 [2025-04-13 21:50:30,283 INFO L226 Difference]: Without dead ends: 359 [2025-04-13 21:50:30,286 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-13 21:50:30,289 INFO L437 NwaCegarLoop]: 2 mSDtfsCounter, 10 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 21:50:30,290 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 3 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 21:50:30,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2025-04-13 21:50:30,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 359. [2025-04-13 21:50:30,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 2.541899441340782) internal successors, (910), 358 states have internal predecessors, (910), 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) [2025-04-13 21:50:30,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 910 transitions. [2025-04-13 21:50:30,341 INFO L79 Accepts]: Start accepts. Automaton has 359 states and 910 transitions. Word has length 6 [2025-04-13 21:50:30,341 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:50:30,341 INFO L485 AbstractCegarLoop]: Abstraction has 359 states and 910 transitions. [2025-04-13 21:50:30,341 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2025-04-13 21:50:30,341 INFO L278 IsEmpty]: Start isEmpty. Operand 359 states and 910 transitions. [2025-04-13 21:50:30,342 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-04-13 21:50:30,342 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:50:30,342 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:50:30,342 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 21:50:30,344 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 21:50:30,345 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:50:30,345 INFO L85 PathProgramCache]: Analyzing trace with hash 1056074250, now seen corresponding path program 1 times [2025-04-13 21:50:30,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:50:30,345 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728963399] [2025-04-13 21:50:30,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:50:30,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:50:30,358 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-13 21:50:30,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-13 21:50:30,434 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:50:30,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:50:31,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:50:31,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:50:31,196 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728963399] [2025-04-13 21:50:31,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728963399] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:50:31,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:50:31,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 21:50:31,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139691153] [2025-04-13 21:50:31,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:50:31,197 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 21:50:31,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:50:31,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 21:50:31,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 21:50:31,198 INFO L87 Difference]: Start difference. First operand 359 states and 910 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2025-04-13 21:50:31,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:50:31,307 INFO L93 Difference]: Finished difference Result 544 states and 1358 transitions. [2025-04-13 21:50:31,309 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 21:50:31,309 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) Word has length 10 [2025-04-13 21:50:31,310 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:50:31,311 INFO L225 Difference]: With dead ends: 544 [2025-04-13 21:50:31,311 INFO L226 Difference]: Without dead ends: 299 [2025-04-13 21:50:31,312 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-04-13 21:50:31,315 INFO L437 NwaCegarLoop]: 2 mSDtfsCounter, 26 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 21:50:31,315 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 6 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 21:50:31,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299 states. [2025-04-13 21:50:31,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299 to 299. [2025-04-13 21:50:31,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 299 states, 298 states have (on average 2.4496644295302015) internal successors, (730), 298 states have internal predecessors, (730), 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) [2025-04-13 21:50:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 299 states to 299 states and 730 transitions. [2025-04-13 21:50:31,334 INFO L79 Accepts]: Start accepts. Automaton has 299 states and 730 transitions. Word has length 10 [2025-04-13 21:50:31,334 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:50:31,334 INFO L485 AbstractCegarLoop]: Abstraction has 299 states and 730 transitions. [2025-04-13 21:50:31,334 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 3 states have internal predecessors, (10), 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) [2025-04-13 21:50:31,334 INFO L278 IsEmpty]: Start isEmpty. Operand 299 states and 730 transitions. [2025-04-13 21:50:31,335 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2025-04-13 21:50:31,335 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:50:31,335 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:50:31,338 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 21:50:31,338 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 21:50:31,339 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:50:31,339 INFO L85 PathProgramCache]: Analyzing trace with hash -808499333, now seen corresponding path program 1 times [2025-04-13 21:50:31,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:50:31,339 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808547247] [2025-04-13 21:50:31,339 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:50:31,339 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:50:31,350 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-04-13 21:50:31,377 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-04-13 21:50:31,380 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:50:31,380 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:50:31,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:50:31,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:50:31,496 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808547247] [2025-04-13 21:50:31,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808547247] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:50:31,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:50:31,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-13 21:50:31,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283301027] [2025-04-13 21:50:31,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:50:31,496 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 21:50:31,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:50:31,496 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 21:50:31,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 21:50:31,497 INFO L87 Difference]: Start difference. First operand 299 states and 730 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2025-04-13 21:50:31,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:50:31,591 INFO L93 Difference]: Finished difference Result 419 states and 996 transitions. [2025-04-13 21:50:31,592 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 21:50:31,593 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) Word has length 13 [2025-04-13 21:50:31,593 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:50:31,594 INFO L225 Difference]: With dead ends: 419 [2025-04-13 21:50:31,594 INFO L226 Difference]: Without dead ends: 234 [2025-04-13 21:50:31,595 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2025-04-13 21:50:31,597 INFO L437 NwaCegarLoop]: 2 mSDtfsCounter, 35 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 21:50:31,598 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 6 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 21:50:31,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2025-04-13 21:50:31,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 234. [2025-04-13 21:50:31,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 234 states, 233 states have (on average 2.296137339055794) internal successors, (535), 233 states have internal predecessors, (535), 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) [2025-04-13 21:50:31,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 535 transitions. [2025-04-13 21:50:31,613 INFO L79 Accepts]: Start accepts. Automaton has 234 states and 535 transitions. Word has length 13 [2025-04-13 21:50:31,613 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:50:31,613 INFO L485 AbstractCegarLoop]: Abstraction has 234 states and 535 transitions. [2025-04-13 21:50:31,613 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 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) [2025-04-13 21:50:31,613 INFO L278 IsEmpty]: Start isEmpty. Operand 234 states and 535 transitions. [2025-04-13 21:50:31,614 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2025-04-13 21:50:31,614 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:50:31,614 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:50:31,614 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-04-13 21:50:31,614 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 21:50:31,614 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:50:31,618 INFO L85 PathProgramCache]: Analyzing trace with hash -375335056, now seen corresponding path program 1 times [2025-04-13 21:50:31,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:50:31,618 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436518271] [2025-04-13 21:50:31,618 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:50:31,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:50:31,629 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-13 21:50:31,675 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-13 21:50:31,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:50:31,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:50:31,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:50:31,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:50:31,823 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436518271] [2025-04-13 21:50:31,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436518271] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:50:31,823 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:50:31,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-04-13 21:50:31,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485821540] [2025-04-13 21:50:31,824 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:50:31,824 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-04-13 21:50:31,824 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:50:31,825 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-04-13 21:50:31,825 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-04-13 21:50:31,825 INFO L87 Difference]: Start difference. First operand 234 states and 535 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2025-04-13 21:50:31,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:50:31,920 INFO L93 Difference]: Finished difference Result 254 states and 571 transitions. [2025-04-13 21:50:31,920 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-04-13 21:50:31,920 INFO L79 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) Word has length 15 [2025-04-13 21:50:31,920 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:50:31,922 INFO L225 Difference]: With dead ends: 254 [2025-04-13 21:50:31,922 INFO L226 Difference]: Without dead ends: 134 [2025-04-13 21:50:31,922 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2025-04-13 21:50:31,923 INFO L437 NwaCegarLoop]: 2 mSDtfsCounter, 50 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2025-04-13 21:50:31,923 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 4 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2025-04-13 21:50:31,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2025-04-13 21:50:31,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 134. [2025-04-13 21:50:31,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134 states, 133 states have (on average 2.142857142857143) internal successors, (285), 133 states have internal predecessors, (285), 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) [2025-04-13 21:50:31,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134 states to 134 states and 285 transitions. [2025-04-13 21:50:31,931 INFO L79 Accepts]: Start accepts. Automaton has 134 states and 285 transitions. Word has length 15 [2025-04-13 21:50:31,931 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:50:31,931 INFO L485 AbstractCegarLoop]: Abstraction has 134 states and 285 transitions. [2025-04-13 21:50:31,931 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 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) [2025-04-13 21:50:31,931 INFO L278 IsEmpty]: Start isEmpty. Operand 134 states and 285 transitions. [2025-04-13 21:50:31,932 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-04-13 21:50:31,932 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:50:31,932 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:50:31,932 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-04-13 21:50:31,932 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 21:50:31,933 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:50:31,933 INFO L85 PathProgramCache]: Analyzing trace with hash 72851956, now seen corresponding path program 1 times [2025-04-13 21:50:31,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:50:31,933 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830426588] [2025-04-13 21:50:31,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 21:50:31,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:50:31,941 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-13 21:50:32,014 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-13 21:50:32,014 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:50:32,014 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 21:50:33,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-13 21:50:33,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 21:50:33,156 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830426588] [2025-04-13 21:50:33,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830426588] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 21:50:33,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 21:50:33,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2025-04-13 21:50:33,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886368292] [2025-04-13 21:50:33,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 21:50:33,156 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2025-04-13 21:50:33,156 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 21:50:33,157 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2025-04-13 21:50:33,157 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2025-04-13 21:50:33,157 INFO L87 Difference]: Start difference. First operand 134 states and 285 transitions. Second operand has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2025-04-13 21:50:33,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 21:50:33,495 INFO L93 Difference]: Finished difference Result 188 states and 394 transitions. [2025-04-13 21:50:33,495 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2025-04-13 21:50:33,495 INFO L79 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) Word has length 20 [2025-04-13 21:50:33,496 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 21:50:33,497 INFO L225 Difference]: With dead ends: 188 [2025-04-13 21:50:33,498 INFO L226 Difference]: Without dead ends: 126 [2025-04-13 21:50:33,499 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2025-04-13 21:50:33,500 INFO L437 NwaCegarLoop]: 4 mSDtfsCounter, 60 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2025-04-13 21:50:33,500 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 23 Invalid, 225 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2025-04-13 21:50:33,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2025-04-13 21:50:33,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 116. [2025-04-13 21:50:33,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116 states, 115 states have (on average 2.0869565217391304) internal successors, (240), 115 states have internal predecessors, (240), 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) [2025-04-13 21:50:33,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 240 transitions. [2025-04-13 21:50:33,506 INFO L79 Accepts]: Start accepts. Automaton has 116 states and 240 transitions. Word has length 20 [2025-04-13 21:50:33,507 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 21:50:33,507 INFO L485 AbstractCegarLoop]: Abstraction has 116 states and 240 transitions. [2025-04-13 21:50:33,507 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.5) internal successors, (20), 8 states have internal predecessors, (20), 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) [2025-04-13 21:50:33,507 INFO L278 IsEmpty]: Start isEmpty. Operand 116 states and 240 transitions. [2025-04-13 21:50:33,509 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2025-04-13 21:50:33,509 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 21:50:33,509 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 21:50:33,509 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-04-13 21:50:33,509 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2025-04-13 21:50:33,509 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 21:50:33,509 INFO L85 PathProgramCache]: Analyzing trace with hash -982654990, now seen corresponding path program 2 times [2025-04-13 21:50:33,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 21:50:33,510 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79659014] [2025-04-13 21:50:33,510 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 21:50:33,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 21:50:33,519 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 20 statements into 1 equivalence classes. [2025-04-13 21:50:33,579 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-13 21:50:33,580 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 21:50:33,580 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-13 21:50:33,580 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-13 21:50:33,584 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-04-13 21:50:33,612 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-04-13 21:50:33,613 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 21:50:33,613 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-13 21:50:33,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-13 21:50:33,633 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-13 21:50:33,634 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2025-04-13 21:50:33,635 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2025-04-13 21:50:33,636 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2025-04-13 21:50:33,636 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2025-04-13 21:50:33,636 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2025-04-13 21:50:33,636 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-13 21:50:33,638 INFO L422 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2025-04-13 21:50:33,705 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 21:50:33,706 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 21:50:33,710 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 09:50:33 BasicIcfg [2025-04-13 21:50:33,710 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 21:50:33,711 INFO L158 Benchmark]: Toolchain (without parser) took 5265.93ms. Allocated memory was 142.6MB in the beginning and 348.1MB in the end (delta: 205.5MB). Free memory was 97.5MB in the beginning and 131.1MB in the end (delta: -33.6MB). Peak memory consumption was 172.6MB. Max. memory is 8.0GB. [2025-04-13 21:50:33,711 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 159.4MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 21:50:33,711 INFO L158 Benchmark]: CACSL2BoogieTranslator took 459.43ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 71.2MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-13 21:50:33,711 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.37ms. Allocated memory is still 142.6MB. Free memory was 71.2MB in the beginning and 69.0MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 21:50:33,711 INFO L158 Benchmark]: Boogie Preprocessor took 33.85ms. Allocated memory is still 142.6MB. Free memory was 69.0MB in the beginning and 66.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 21:50:33,711 INFO L158 Benchmark]: IcfgBuilder took 566.68ms. Allocated memory is still 142.6MB. Free memory was 66.1MB in the beginning and 78.1MB in the end (delta: -12.0MB). Peak memory consumption was 48.8MB. Max. memory is 8.0GB. [2025-04-13 21:50:33,712 INFO L158 Benchmark]: TraceAbstraction took 4167.38ms. Allocated memory was 142.6MB in the beginning and 348.1MB in the end (delta: 205.5MB). Free memory was 77.4MB in the beginning and 131.1MB in the end (delta: -53.8MB). Peak memory consumption was 153.1MB. Max. memory is 8.0GB. [2025-04-13 21:50:33,712 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 159.4MB. Free memory is still 87.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 459.43ms. Allocated memory is still 142.6MB. Free memory was 96.9MB in the beginning and 71.2MB in the end (delta: 25.7MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.37ms. Allocated memory is still 142.6MB. Free memory was 71.2MB in the beginning and 69.0MB in the end (delta: 2.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.85ms. Allocated memory is still 142.6MB. Free memory was 69.0MB in the beginning and 66.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * IcfgBuilder took 566.68ms. Allocated memory is still 142.6MB. Free memory was 66.1MB in the beginning and 78.1MB in the end (delta: -12.0MB). Peak memory consumption was 48.8MB. Max. memory is 8.0GB. * TraceAbstraction took 4167.38ms. Allocated memory was 142.6MB in the beginning and 348.1MB in the end (delta: 205.5MB). Free memory was 77.4MB in the beginning and 131.1MB in the end (delta: -53.8MB). Peak memory consumption was 153.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L708] 0 int __unbuffered_cnt = 0; [L709] 0 _Bool main$tmp_guard0; [L710] 0 _Bool main$tmp_guard1; [L712] 0 int x = 0; [L713] 0 _Bool x$flush_delayed; [L714] 0 int x$mem_tmp; [L715] 0 _Bool x$r_buff0_thd0; [L716] 0 _Bool x$r_buff0_thd1; [L717] 0 _Bool x$r_buff0_thd2; [L718] 0 _Bool x$r_buff1_thd0; [L719] 0 _Bool x$r_buff1_thd1; [L720] 0 _Bool x$r_buff1_thd2; [L721] 0 _Bool x$read_delayed; [L722] 0 int *x$read_delayed_var; [L723] 0 int x$w_buff0; [L724] 0 _Bool x$w_buff0_used; [L725] 0 int x$w_buff1; [L726] 0 _Bool x$w_buff1_used; [L728] 0 int y = 0; [L729] 0 _Bool weak$$choice0; [L730] 0 _Bool weak$$choice2; [L790] 0 pthread_t t2475; [L791] FCALL, FORK 0 pthread_create(&t2475, ((void *)0), P0, ((void *)0)) VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, t2475=-1, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L792] 0 pthread_t t2476; [L793] FCALL, FORK 0 pthread_create(&t2476, ((void *)0), P1, ((void *)0)) VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=0, main$tmp_guard0=0, main$tmp_guard1=0, t2475=-1, t2476=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=0, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=0, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L754] 2 x$w_buff1 = x$w_buff0 [L755] 2 x$w_buff0 = 2 [L756] 2 x$w_buff1_used = x$w_buff0_used [L757] 2 x$w_buff0_used = (_Bool)1 [L758] CALL 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L18] COND FALSE 2 !(!expression) [L758] RET 2 __VERIFIER_assert(!(x$w_buff1_used && x$w_buff0_used)) [L759] 2 x$r_buff1_thd0 = x$r_buff0_thd0 [L760] 2 x$r_buff1_thd1 = x$r_buff0_thd1 [L761] 2 x$r_buff1_thd2 = x$r_buff0_thd2 [L762] 2 x$r_buff0_thd2 = (_Bool)1 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, __unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=0] [L765] 2 y = 1 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, __unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=1] [L734] 1 y = 2 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=0, y=2] [L737] 1 x = 1 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L740] 1 x = x$w_buff0_used && x$r_buff0_thd1 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd1 ? x$w_buff1 : x) [L741] 1 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$w_buff0_used [L742] 1 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$w_buff1_used [L743] 1 x$r_buff0_thd1 = x$w_buff0_used && x$r_buff0_thd1 ? (_Bool)0 : x$r_buff0_thd1 [L744] 1 x$r_buff1_thd1 = x$w_buff0_used && x$r_buff0_thd1 || x$w_buff1_used && x$r_buff1_thd1 ? (_Bool)0 : x$r_buff1_thd1 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L747] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=1, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=1, x$w_buff1=0, x$w_buff1_used=0, x=1, y=2] [L768] 2 x = x$w_buff0_used && x$r_buff0_thd2 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd2 ? x$w_buff1 : x) [L769] 2 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$w_buff0_used [L770] 2 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$w_buff1_used [L771] 2 x$r_buff0_thd2 = x$w_buff0_used && x$r_buff0_thd2 ? (_Bool)0 : x$r_buff0_thd2 [L772] 2 x$r_buff1_thd2 = x$w_buff0_used && x$r_buff0_thd2 || x$w_buff1_used && x$r_buff1_thd2 ? (_Bool)0 : x$r_buff1_thd2 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, __unbuffered_cnt=1, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L775] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\at(arg, Pre)={0:0}, \at(arg, Pre)={0:0}, __unbuffered_cnt=2, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L795] 0 main$tmp_guard0 = __unbuffered_cnt == 2 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=2, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2475=-1, t2476=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L797] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L797] RET 0 assume_abort_if_not(main$tmp_guard0) [L799] 0 x = x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : (x$w_buff1_used && x$r_buff1_thd0 ? x$w_buff1 : x) [L800] 0 x$w_buff0_used = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used [L801] 0 x$w_buff1_used = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$w_buff1_used [L802] 0 x$r_buff0_thd0 = x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0 [L803] 0 x$r_buff1_thd0 = x$w_buff0_used && x$r_buff0_thd0 || x$w_buff1_used && x$r_buff1_thd0 ? (_Bool)0 : x$r_buff1_thd0 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=2, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2475=-1, t2476=0, weak$$choice0=0, weak$$choice2=0, x$flush_delayed=0, x$mem_tmp=0, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L806] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L807] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L808] 0 x$flush_delayed = weak$$choice2 [L809] 0 x$mem_tmp = x [L810] 0 x = !x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff1) [L811] 0 x$w_buff0 = weak$$choice2 ? x$w_buff0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff0 : x$w_buff0)) [L812] 0 x$w_buff1 = weak$$choice2 ? x$w_buff1 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1 : (x$w_buff0_used && x$r_buff0_thd0 ? x$w_buff1 : x$w_buff1)) [L813] 0 x$w_buff0_used = weak$$choice2 ? x$w_buff0_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff0_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$w_buff0_used)) [L814] 0 x$w_buff1_used = weak$$choice2 ? x$w_buff1_used : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$w_buff1_used : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L815] 0 x$r_buff0_thd0 = weak$$choice2 ? x$r_buff0_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff0_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : x$r_buff0_thd0)) [L816] 0 x$r_buff1_thd0 = weak$$choice2 ? x$r_buff1_thd0 : (!x$w_buff0_used || !x$r_buff0_thd0 && !x$w_buff1_used || !x$r_buff0_thd0 && !x$r_buff1_thd0 ? x$r_buff1_thd0 : (x$w_buff0_used && x$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L817] 0 main$tmp_guard1 = !(x == 2 && y == 2) [L818] 0 x = x$flush_delayed ? x$mem_tmp : x [L819] 0 x$flush_delayed = (_Bool)0 VAL [\at(arg, Pre)={0:0}, __unbuffered_cnt=2, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2475=-1, t2476=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] [L821] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\at(arg, Pre)={0:0}, \at(expression, Pre)=0, __unbuffered_cnt=2, arg={0:0}, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x$flush_delayed=0, x$mem_tmp=2, x$r_buff0_thd0=0, x$r_buff0_thd1=0, x$r_buff0_thd2=1, x$r_buff1_thd0=0, x$r_buff1_thd1=0, x$r_buff1_thd2=0, x$read_delayed=0, x$read_delayed_var={0:0}, x$w_buff0=2, x$w_buff0_used=0, x$w_buff1=0, x$w_buff1_used=0, x=2, y=2] - UnprovableResult [Line: 18]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 793]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 791]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 44 locations, 41 edges, 5 error locations. Started 1 CEGAR loops. OverallTime: 4.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 181 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 181 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 30 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 402 IncrementalHoareTripleChecker+Invalid, 436 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 12 mSDtfsCounter, 402 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=429occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 608 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2025-04-13 21:50:33,725 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request...