/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.xml -s ../benchexec/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --traceabstraction.automaton.type.used.in.concurrency.analysis FINITE_AUTOMATA -i ../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.3.0-wip.dk.cfg-lbe-improvements-94356ea-m [2025-04-13 18:51:07,993 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-13 18:51:08,055 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 18:51:08,061 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-13 18:51:08,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-13 18:51:08,090 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-13 18:51:08,091 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-13 18:51:08,091 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-13 18:51:08,091 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-04-13 18:51:08,091 INFO L153 SettingsManager]: * Use memory slicer=true [2025-04-13 18:51:08,092 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-13 18:51:08,092 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-13 18:51:08,093 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-13 18:51:08,093 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-13 18:51:08,094 INFO L153 SettingsManager]: * Use SBE=true [2025-04-13 18:51:08,094 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-13 18:51:08,094 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-13 18:51:08,094 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-13 18:51:08,094 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-13 18:51:08,094 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-13 18:51:08,094 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-13 18:51:08,094 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-13 18:51:08,094 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-13 18:51:08,095 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-13 18:51:08,095 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-13 18:51:08,095 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-13 18:51:08,095 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-13 18:51:08,095 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-13 18:51:08,095 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-13 18:51:08,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 18:51:08,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 18:51:08,095 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 18:51:08,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 18:51:08,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-13 18:51:08,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-13 18:51:08,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-13 18:51:08,095 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-13 18:51:08,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 18:51:08,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-13 18:51:08,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-13 18:51:08,096 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-13 18:51:08,096 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-13 18:51:08,096 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-13 18:51:08,096 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-13 18:51:08,096 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-04-13 18:51:08,096 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-04-13 18:51:08,096 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-04-13 18:51:08,096 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 [2025-04-13 18:51:08,311 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-13 18:51:08,318 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-13 18:51:08,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-13 18:51:08,320 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-13 18:51:08,322 INFO L274 PluginConnector]: CDTParser initialized [2025-04-13 18:51:08,323 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy7.wvr.c [2025-04-13 18:51:09,569 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d8b9134a/e04572d41a7345f5a17a9bb0287217df/FLAGedb367930 [2025-04-13 18:51:09,769 INFO L389 CDTParser]: Found 1 translation units. [2025-04-13 18:51:09,769 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy7.wvr.c [2025-04-13 18:51:09,777 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d8b9134a/e04572d41a7345f5a17a9bb0287217df/FLAGedb367930 [2025-04-13 18:51:10,570 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d8b9134a/e04572d41a7345f5a17a9bb0287217df [2025-04-13 18:51:10,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-13 18:51:10,573 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2025-04-13 18:51:10,574 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-13 18:51:10,574 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-13 18:51:10,578 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-13 18:51:10,579 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,579 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11c81998 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10, skipping insertion in model container [2025-04-13 18:51:10,579 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,590 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-13 18:51:10,747 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/test-easy7.wvr.c[1898,1911] [2025-04-13 18:51:10,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 18:51:10,760 INFO L200 MainTranslator]: Completed pre-run [2025-04-13 18:51:10,785 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/test-easy7.wvr.c[1898,1911] [2025-04-13 18:51:10,786 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-13 18:51:10,799 INFO L204 MainTranslator]: Completed translation [2025-04-13 18:51:10,801 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10 WrapperNode [2025-04-13 18:51:10,801 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-13 18:51:10,802 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-13 18:51:10,802 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-13 18:51:10,802 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-13 18:51:10,806 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,827 INFO L138 Inliner]: procedures = 20, calls = 10, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 43 [2025-04-13 18:51:10,827 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-13 18:51:10,829 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-13 18:51:10,829 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-13 18:51:10,829 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-13 18:51:10,834 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,834 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,840 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,851 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 18:51:10,851 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,851 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,854 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,854 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,855 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,856 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,856 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,858 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-13 18:51:10,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-13 18:51:10,859 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-13 18:51:10,859 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-13 18:51:10,859 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (1/1) ... [2025-04-13 18:51:10,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-13 18:51:10,873 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-04-13 18:51:10,883 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 18:51:10,885 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 18:51:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-13 18:51:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-04-13 18:51:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-04-13 18:51:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-04-13 18:51:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-04-13 18:51:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-04-13 18:51:10,902 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-13 18:51:10,902 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-13 18:51:10,903 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-13 18:51:10,963 INFO L234 CfgBuilder]: Building ICFG [2025-04-13 18:51:10,965 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-13 18:51:11,064 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-13 18:51:11,064 INFO L289 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-13 18:51:11,064 INFO L294 CfgBuilder]: Performing block encoding [2025-04-13 18:51:11,172 INFO L313 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-13 18:51:11,172 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 06:51:11 BoogieIcfgContainer [2025-04-13 18:51:11,172 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-13 18:51:11,176 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-13 18:51:11,176 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-13 18:51:11,179 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-13 18:51:11,179 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.04 06:51:10" (1/3) ... [2025-04-13 18:51:11,180 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67be8a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 06:51:11, skipping insertion in model container [2025-04-13 18:51:11,180 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.04 06:51:10" (2/3) ... [2025-04-13 18:51:11,181 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67be8a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.04 06:51:11, skipping insertion in model container [2025-04-13 18:51:11,181 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.04 06:51:11" (3/3) ... [2025-04-13 18:51:11,181 INFO L128 eAbstractionObserver]: Analyzing ICFG test-easy7.wvr.c [2025-04-13 18:51:11,191 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-13 18:51:11,192 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG test-easy7.wvr.c that has 3 procedures, 14 locations, 11 edges, 1 initial locations, 0 loop locations, and 1 error locations. [2025-04-13 18:51:11,192 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-13 18:51:11,225 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-04-13 18:51:11,247 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 20 places, 13 transitions, 40 flow [2025-04-13 18:51:11,254 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 18:51:11,272 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-04-13 18:51:11,278 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;@4089f595, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-13 18:51:11,278 INFO L341 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2025-04-13 18:51:11,280 INFO L278 IsEmpty]: Start isEmpty. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-04-13 18:51:11,283 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-04-13 18:51:11,283 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:51:11,284 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:51:11,284 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-13 18:51:11,287 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:51:11,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1328350093, now seen corresponding path program 1 times [2025-04-13 18:51:11,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:51:11,292 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104764117] [2025-04-13 18:51:11,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-13 18:51:11,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:51:11,345 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-04-13 18:51:11,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-13 18:51:11,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-13 18:51:11,386 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:51:11,735 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 18:51:11,736 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:51:11,736 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104764117] [2025-04-13 18:51:11,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104764117] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:51:11,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:51:11,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 18:51:11,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380102157] [2025-04-13 18:51:11,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:51:11,741 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 18:51:11,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:51:11,754 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 18:51:11,755 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 18:51:11,756 INFO L87 Difference]: Start difference. First operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 3 states have (on average 3.3333333333333335) 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 18:51:11,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:51:11,805 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2025-04-13 18:51:11,807 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 18:51:11,808 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) 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 18:51:11,808 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:51:11,812 INFO L225 Difference]: With dead ends: 23 [2025-04-13 18:51:11,812 INFO L226 Difference]: Without dead ends: 13 [2025-04-13 18:51:11,814 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 18:51:11,816 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 4 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-13 18:51:11,816 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 0 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-13 18:51:11,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2025-04-13 18:51:11,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2025-04-13 18:51:11,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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 18:51:11,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2025-04-13 18:51:11,836 INFO L79 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 10 [2025-04-13 18:51:11,836 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:51:11,837 INFO L485 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2025-04-13 18:51:11,838 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) 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 18:51:11,838 INFO L278 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2025-04-13 18:51:11,838 INFO L284 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2025-04-13 18:51:11,839 INFO L210 NwaCegarLoop]: Found error trace [2025-04-13 18:51:11,839 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-04-13 18:51:11,839 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-13 18:51:11,839 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-13 18:51:11,840 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-13 18:51:11,840 INFO L85 PathProgramCache]: Analyzing trace with hash 2120772055, now seen corresponding path program 2 times [2025-04-13 18:51:11,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-13 18:51:11,840 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [820048412] [2025-04-13 18:51:11,840 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-13 18:51:11,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-13 18:51:11,849 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 10 statements into 1 equivalence classes. [2025-04-13 18:51:11,859 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-04-13 18:51:11,859 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-04-13 18:51:11,859 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-13 18:51:11,980 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 18:51:11,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-13 18:51:11,981 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [820048412] [2025-04-13 18:51:11,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [820048412] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-13 18:51:11,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-13 18:51:11,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-04-13 18:51:11,981 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596201385] [2025-04-13 18:51:11,981 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-13 18:51:11,982 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-04-13 18:51:11,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-13 18:51:11,982 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-04-13 18:51:11,982 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 18:51:11,982 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) 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 18:51:12,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2025-04-13 18:51:12,006 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2025-04-13 18:51:12,006 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-04-13 18:51:12,006 INFO L79 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) 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 18:51:12,007 INFO L85 Accepts]: Finished accepts. some prefix is accepted. [2025-04-13 18:51:12,007 INFO L225 Difference]: With dead ends: 13 [2025-04-13 18:51:12,007 INFO L226 Difference]: Without dead ends: 0 [2025-04-13 18:51:12,007 INFO L436 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-04-13 18:51:12,007 INFO L437 NwaCegarLoop]: 0 mSDtfsCounter, 1 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2025-04-13 18:51:12,008 INFO L438 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 0 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2025-04-13 18:51:12,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2025-04-13 18:51:12,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2025-04-13 18:51:12,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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 18:51:12,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2025-04-13 18:51:12,008 INFO L79 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2025-04-13 18:51:12,008 INFO L85 Accepts]: Finished accepts. word is rejected. [2025-04-13 18:51:12,008 INFO L485 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2025-04-13 18:51:12,008 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) 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 18:51:12,009 INFO L278 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2025-04-13 18:51:12,009 INFO L284 IsEmpty]: Finished isEmpty. No accepting run. [2025-04-13 18:51:12,011 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2025-04-13 18:51:12,011 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2025-04-13 18:51:12,011 INFO L790 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2025-04-13 18:51:12,011 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-04-13 18:51:12,013 INFO L422 BasicCegarLoop]: Path program histogram: [2] [2025-04-13 18:51:12,015 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-13 18:51:12,015 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-13 18:51:12,018 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.04 06:51:12 BasicIcfg [2025-04-13 18:51:12,018 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-13 18:51:12,019 INFO L158 Benchmark]: Toolchain (without parser) took 1445.09ms. Allocated memory is still 155.2MB. Free memory was 109.4MB in the beginning and 76.8MB in the end (delta: 32.6MB). Peak memory consumption was 30.8MB. Max. memory is 8.0GB. [2025-04-13 18:51:12,019 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 163.6MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 18:51:12,021 INFO L158 Benchmark]: CACSL2BoogieTranslator took 227.44ms. Allocated memory is still 155.2MB. Free memory was 109.4MB in the beginning and 95.7MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2025-04-13 18:51:12,022 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.50ms. Allocated memory is still 155.2MB. Free memory was 94.8MB in the beginning and 94.1MB in the end (delta: 749.6kB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 18:51:12,022 INFO L158 Benchmark]: Boogie Preprocessor took 29.16ms. Allocated memory is still 155.2MB. Free memory was 94.1MB in the beginning and 92.3MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2025-04-13 18:51:12,022 INFO L158 Benchmark]: RCFGBuilder took 313.71ms. Allocated memory is still 155.2MB. Free memory was 92.3MB in the beginning and 67.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. [2025-04-13 18:51:12,022 INFO L158 Benchmark]: TraceAbstraction took 841.86ms. Allocated memory is still 155.2MB. Free memory was 66.3MB in the beginning and 76.8MB in the end (delta: -10.4MB). There was no memory consumed. Max. memory is 8.0GB. [2025-04-13 18:51:12,023 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 163.6MB. Free memory is still 89.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 227.44ms. Allocated memory is still 155.2MB. Free memory was 109.4MB in the beginning and 95.7MB in the end (delta: 13.7MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.50ms. Allocated memory is still 155.2MB. Free memory was 94.8MB in the beginning and 94.1MB in the end (delta: 749.6kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 29.16ms. Allocated memory is still 155.2MB. Free memory was 94.1MB in the beginning and 92.3MB in the end (delta: 1.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 313.71ms. Allocated memory is still 155.2MB. Free memory was 92.3MB in the beginning and 67.2MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 8.0GB. * TraceAbstraction took 841.86ms. Allocated memory is still 155.2MB. Free memory was 66.3MB in the beginning and 76.8MB in the end (delta: -10.4MB). There was no memory consumed. 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 - PositiveResult [Line: 72]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 20 locations, 19 edges, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 0 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 141 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-04-13 18:51:12,038 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...