/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver bitwuzla -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 21:38:37,553 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 21:38:37,654 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 21:38:37,659 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 21:38:37,659 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 21:38:37,697 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 21:38:37,697 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 21:38:37,698 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 21:38:37,698 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 21:38:37,698 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 21:38:37,699 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 21:38:37,700 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 21:38:37,701 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 21:38:37,704 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 21:38:37,704 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 21:38:37,704 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 21:38:37,705 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 21:38:37,705 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 21:38:37,705 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 21:38:37,705 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 21:38:37,706 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 21:38:37,707 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 21:38:37,708 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 21:38:37,708 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 21:38:37,708 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 21:38:37,708 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 21:38:37,708 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 21:38:37,709 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 21:38:37,709 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 21:38:37,709 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 21:38:37,709 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 21:38:37,709 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 21:38:37,710 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 21:38:37,710 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 21:38:37,710 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 21:38:37,712 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 21:38:37,712 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 21:38:37,712 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 21:38:37,713 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 21:38:37,713 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 21:38:37,713 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 21:38:37,713 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 21:38:37,713 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> bitwuzla [2024-11-01 21:38:38,021 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 21:38:38,043 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 21:38:38,046 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 21:38:38,047 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 21:38:38,047 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 21:38:38,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c [2024-11-01 21:38:39,509 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 21:38:39,770 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 21:38:39,771 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c [2024-11-01 21:38:39,786 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08bbf27c9/ac48d557bf4e47e38894f209f82b2c8e/FLAG22a3ddf2b [2024-11-01 21:38:39,807 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08bbf27c9/ac48d557bf4e47e38894f209f82b2c8e [2024-11-01 21:38:39,809 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 21:38:39,810 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 21:38:39,811 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 21:38:39,812 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 21:38:39,815 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 21:38:39,816 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 09:38:39" (1/1) ... [2024-11-01 21:38:39,817 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c1d6c37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:39, skipping insertion in model container [2024-11-01 21:38:39,817 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 09:38:39" (1/1) ... [2024-11-01 21:38:39,882 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 21:38:40,090 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c[1249,1262] [2024-11-01 21:38:40,329 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 21:38:40,345 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 21:38:40,358 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.h_Arbiter.c[1249,1262] [2024-11-01 21:38:40,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 21:38:40,487 INFO L204 MainTranslator]: Completed translation [2024-11-01 21:38:40,488 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40 WrapperNode [2024-11-01 21:38:40,488 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 21:38:40,489 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 21:38:40,489 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 21:38:40,489 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 21:38:40,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40" (1/1) ... [2024-11-01 21:38:40,524 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40" (1/1) ... [2024-11-01 21:38:40,609 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1161 [2024-11-01 21:38:40,609 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 21:38:40,614 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 21:38:40,614 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 21:38:40,614 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 21:38:40,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40" (1/1) ... [2024-11-01 21:38:40,630 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40" (1/1) ... [2024-11-01 21:38:40,647 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40" (1/1) ... [2024-11-01 21:38:40,691 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]. [2024-11-01 21:38:40,692 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40" (1/1) ... [2024-11-01 21:38:40,692 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40" (1/1) ... [2024-11-01 21:38:40,722 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40" (1/1) ... [2024-11-01 21:38:40,727 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40" (1/1) ... [2024-11-01 21:38:40,731 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40" (1/1) ... [2024-11-01 21:38:40,736 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40" (1/1) ... [2024-11-01 21:38:40,746 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 21:38:40,746 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 21:38:40,747 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 21:38:40,747 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 21:38:40,747 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40" (1/1) ... [2024-11-01 21:38:40,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 21:38:40,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 21:38:40,794 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) [2024-11-01 21:38:40,798 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 [2024-11-01 21:38:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 21:38:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 21:38:40,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 21:38:40,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 21:38:41,051 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 21:38:41,053 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 21:38:41,834 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-01 21:38:41,834 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 21:38:41,844 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 21:38:41,844 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 21:38:41,844 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 09:38:41 BoogieIcfgContainer [2024-11-01 21:38:41,845 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 21:38:41,848 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 21:38:41,848 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 21:38:41,851 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 21:38:41,851 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 09:38:39" (1/3) ... [2024-11-01 21:38:41,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0eff97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 09:38:41, skipping insertion in model container [2024-11-01 21:38:41,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 09:38:40" (2/3) ... [2024-11-01 21:38:41,852 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e0eff97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 09:38:41, skipping insertion in model container [2024-11-01 21:38:41,852 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 09:38:41" (3/3) ... [2024-11-01 21:38:41,853 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Arbiter.c [2024-11-01 21:38:41,868 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 21:38:41,869 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 21:38:41,924 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 21:38:41,931 INFO L333 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=PETRI_NET, 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;@2391be6a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 21:38:41,931 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 21:38:41,979 INFO L276 IsEmpty]: Start isEmpty. Operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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) [2024-11-01 21:38:41,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-01 21:38:41,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 21:38:41,987 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-01 21:38:41,988 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 21:38:41,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 21:38:41,994 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-01 21:38:42,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 21:38:42,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [5680967] [2024-11-01 21:38:42,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 21:38:42,005 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 21:38:42,005 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:38:42,008 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 21:38:42,025 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Waiting until timeout for monitored process [2024-11-01 21:38:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 21:38:42,350 WARN L253 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 68 conjuncts are in the unsatisfiable core [2024-11-01 21:38:42,383 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 21:38:43,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 21:38:43,189 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 21:38:43,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 21:38:43,856 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 21:38:43,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [5680967] [2024-11-01 21:38:43,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [5680967] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-01 21:38:43,858 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-01 21:38:43,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-01 21:38:43,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036728902] [2024-11-01 21:38:43,860 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-01 21:38:43,863 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-01 21:38:43,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 21:38:43,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-01 21:38:43,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-01 21:38:43,887 INFO L87 Difference]: Start difference. First operand has 10 states, 8 states have (on average 1.375) internal successors, (11), 9 states have internal predecessors, (11), 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 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-11-01 21:38:43,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 21:38:43,984 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-01 21:38:43,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 21:38:43,987 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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 5 [2024-11-01 21:38:43,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 21:38:43,992 INFO L225 Difference]: With dead ends: 18 [2024-11-01 21:38:43,993 INFO L226 Difference]: Without dead ends: 10 [2024-11-01 21:38:43,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-01 21:38:43,999 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 21:38:44,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 21:38:44,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-01 21:38:44,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-01 21:38:44,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 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) [2024-11-01 21:38:44,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-01 21:38:44,030 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-01 21:38:44,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 21:38:44,030 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-01 21:38:44,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 6 states have internal predecessors, (8), 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) [2024-11-01 21:38:44,031 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-01 21:38:44,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-01 21:38:44,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 21:38:44,032 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-01 21:38:44,039 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (2)] Forceful destruction successful, exit code 0 [2024-11-01 21:38:44,235 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:38:44,236 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 21:38:44,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 21:38:44,237 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-01 21:38:44,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 21:38:44,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [8803374] [2024-11-01 21:38:44,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 21:38:44,237 INFO L173 SolverBuilder]: Constructing external solver with command: bitwuzla [2024-11-01 21:38:44,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:38:44,240 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (exit command is (exit), workingDir is null) [2024-11-01 21:38:44,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Waiting until timeout for monitored process [2024-11-01 21:38:44,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 21:38:44,644 INFO L255 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 85 conjuncts are in the unsatisfiable core [2024-11-01 21:38:44,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 21:38:45,349 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 21:38:45,349 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 21:39:10,789 WARN L286 SmtUtils]: Spent 5.89s on a formula simplification. DAG size of input: 486 DAG size of output: 449 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-01 21:39:34,782 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-01 21:39:34,783 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 21:39:34,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [8803374] [2024-11-01 21:39:34,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [8803374] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 21:39:34,786 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 21:39:34,786 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2024-11-01 21:39:34,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35016574] [2024-11-01 21:39:34,786 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 21:39:34,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-01 21:39:34,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 21:39:34,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-01 21:39:34,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-01 21:39:34,789 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2024-11-01 21:39:34,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 21:39:34,870 INFO L93 Difference]: Finished difference Result 9 states and 9 transitions. [2024-11-01 21:39:34,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-01 21:39:34,872 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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) Word has length 8 [2024-11-01 21:39:34,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 21:39:34,872 INFO L225 Difference]: With dead ends: 9 [2024-11-01 21:39:34,872 INFO L226 Difference]: Without dead ends: 0 [2024-11-01 21:39:34,873 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-01 21:39:34,874 INFO L432 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-01 21:39:34,874 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-01 21:39:34,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-01 21:39:34,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-01 21:39:34,875 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) [2024-11-01 21:39:34,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-01 21:39:34,876 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2024-11-01 21:39:34,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 21:39:34,876 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-01 21:39:34,876 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 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) [2024-11-01 21:39:34,876 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-01 21:39:34,877 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-01 21:39:34,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-01 21:39:34,886 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla (3)] Forceful destruction successful, exit code 0 [2024-11-01 21:39:35,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/bitwuzla [2024-11-01 21:39:35,085 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-01 21:39:35,086 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-01 21:39:35,125 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-01 21:39:35,136 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.11 09:39:35 BoogieIcfgContainer [2024-11-01 21:39:35,137 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-01 21:39:35,137 INFO L158 Benchmark]: Toolchain (without parser) took 55326.86ms. Allocated memory was 205.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 160.7MB in the beginning and 1.4GB in the end (delta: -1.2GB). Peak memory consumption was 58.9MB. Max. memory is 8.0GB. [2024-11-01 21:39:35,138 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 205.5MB. Free memory was 181.1MB in the beginning and 181.0MB in the end (delta: 74.0kB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 21:39:35,138 INFO L158 Benchmark]: CACSL2BoogieTranslator took 677.10ms. Allocated memory is still 205.5MB. Free memory was 160.7MB in the beginning and 120.3MB in the end (delta: 40.5MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. [2024-11-01 21:39:35,138 INFO L158 Benchmark]: Boogie Procedure Inliner took 123.95ms. Allocated memory is still 205.5MB. Free memory was 120.3MB in the beginning and 111.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2024-11-01 21:39:35,138 INFO L158 Benchmark]: Boogie Preprocessor took 132.00ms. Allocated memory is still 205.5MB. Free memory was 111.5MB in the beginning and 101.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2024-11-01 21:39:35,139 INFO L158 Benchmark]: RCFGBuilder took 1098.10ms. Allocated memory is still 205.5MB. Free memory was 101.0MB in the beginning and 84.7MB in the end (delta: 16.3MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. [2024-11-01 21:39:35,139 INFO L158 Benchmark]: TraceAbstraction took 53288.95ms. Allocated memory was 205.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 83.7MB in the beginning and 1.4GB in the end (delta: -1.3GB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 21:39:35,141 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 205.5MB. Free memory was 181.1MB in the beginning and 181.0MB in the end (delta: 74.0kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 677.10ms. Allocated memory is still 205.5MB. Free memory was 160.7MB in the beginning and 120.3MB in the end (delta: 40.5MB). Peak memory consumption was 40.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 123.95ms. Allocated memory is still 205.5MB. Free memory was 120.3MB in the beginning and 111.5MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * Boogie Preprocessor took 132.00ms. Allocated memory is still 205.5MB. Free memory was 111.5MB in the beginning and 101.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * RCFGBuilder took 1098.10ms. Allocated memory is still 205.5MB. Free memory was 101.0MB in the beginning and 84.7MB in the end (delta: 16.3MB). Peak memory consumption was 46.1MB. Max. memory is 8.0GB. * TraceAbstraction took 53288.95ms. Allocated memory was 205.5MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 83.7MB in the beginning and 1.4GB in the end (delta: -1.3GB). 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: 21]: 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 CFG has 1 procedures, 10 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 20 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 14 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18 IncrementalHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 6 mSDtfsCounter, 18 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 6.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 51.7s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 41659 SizeOfPredicates, 17 NumberOfNonLiveVariables, 306 ConjunctsInSsa, 153 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 0/4 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: (((((((((((((((1 == var_32) && (0 == state_60)) && (1 == var_8)) && (0 == state_64)) && (0 == var_3)) && (0 == state_10)) && (0 == state_17)) && (2 == var_77)) && (0 == state_80)) && (0 == state_70)) && (1 == mask_SORT_1)) && (0 == state_75)) && (0 == state_56)) && (1 == var_72)) && (0 == state_4)) RESULT: Ultimate proved your program to be correct! [2024-11-01 21:39:35,264 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...