/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 --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.trace.refinement.strategy FOX -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d64_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 15:21:53,993 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 15:21:54,037 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-06 15:21:54,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 15:21:54,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 15:21:54,059 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 15:21:54,059 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 15:21:54,059 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 15:21:54,060 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 15:21:54,060 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 15:21:54,060 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 15:21:54,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 15:21:54,061 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 15:21:54,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 15:21:54,061 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 15:21:54,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 15:21:54,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 15:21:54,062 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 15:21:54,062 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 15:21:54,062 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 15:21:54,063 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 15:21:54,065 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 15:21:54,065 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 15:21:54,065 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 15:21:54,067 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 15:21:54,067 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 15:21:54,068 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 15:21:54,068 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 15:21:54,068 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 15:21:54,068 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 15:21:54,068 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 15:21:54,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 15:21:54,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 15:21:54,069 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 15:21:54,069 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 15:21:54,069 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 15:21:54,069 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 15:21:54,069 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 15:21:54,069 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 15:21:54,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 15:21:54,070 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 15:21:54,070 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 15:21:54,238 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 15:21:54,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 15:21:54,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 15:21:54,258 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 15:21:54,258 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 15:21:54,260 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d64_e0.c [2024-11-06 15:21:55,428 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 15:21:55,685 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 15:21:55,686 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w32_d64_e0.c [2024-11-06 15:21:55,707 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99478365e/d77b9a41c6fc40948ea82877676097a9/FLAG8564f90e0 [2024-11-06 15:21:56,001 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/99478365e/d77b9a41c6fc40948ea82877676097a9 [2024-11-06 15:21:56,003 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 15:21:56,004 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 15:21:56,005 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 15:21:56,005 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 15:21:56,010 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 15:21:56,011 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,011 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53c5871f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56, skipping insertion in model container [2024-11-06 15:21:56,011 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,068 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 15:21:56,212 WARN L250 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.circular_pointer_top_w32_d64_e0.c[1280,1293] [2024-11-06 15:21:56,462 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 15:21:56,471 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 15:21:56,480 WARN L250 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.circular_pointer_top_w32_d64_e0.c[1280,1293] [2024-11-06 15:21:56,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 15:21:56,621 INFO L204 MainTranslator]: Completed translation [2024-11-06 15:21:56,621 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56 WrapperNode [2024-11-06 15:21:56,621 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 15:21:56,622 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 15:21:56,622 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 15:21:56,622 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 15:21:56,626 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,661 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,740 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2549 [2024-11-06 15:21:56,741 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 15:21:56,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 15:21:56,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 15:21:56,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 15:21:56,749 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,764 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,794 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]. [2024-11-06 15:21:56,794 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,794 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,833 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,842 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,853 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,874 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 15:21:56,876 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 15:21:56,876 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 15:21:56,876 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 15:21:56,877 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56" (1/1) ... [2024-11-06 15:21:56,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 15:21:56,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 15:21:56,898 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) [2024-11-06 15:21:56,900 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 [2024-11-06 15:21:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 15:21:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 15:21:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-06 15:21:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-06 15:21:56,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 15:21:56,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 15:21:57,216 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 15:21:57,218 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 15:21:58,576 INFO L? ?]: Removed 705 outVars from TransFormulas that were not future-live. [2024-11-06 15:21:58,576 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 15:21:58,586 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 15:21:58,586 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 15:21:58,587 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:21:58 BoogieIcfgContainer [2024-11-06 15:21:58,587 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 15:21:58,588 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 15:21:58,588 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 15:21:58,590 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 15:21:58,590 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 03:21:56" (1/3) ... [2024-11-06 15:21:58,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650200e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:21:58, skipping insertion in model container [2024-11-06 15:21:58,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 03:21:56" (2/3) ... [2024-11-06 15:21:58,591 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@650200e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 03:21:58, skipping insertion in model container [2024-11-06 15:21:58,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 03:21:58" (3/3) ... [2024-11-06 15:21:58,592 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w32_d64_e0.c [2024-11-06 15:21:58,603 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 15:21:58,604 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 15:21:58,642 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 15:21:58,646 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;@f44d2c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 15:21:58,646 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 15:21:58,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-06 15:21:58,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-06 15:21:58,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 15:21:58,658 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 15:21:58,658 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 15:21:58,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 15:21:58,662 INFO L85 PathProgramCache]: Analyzing trace with hash 1944675641, now seen corresponding path program 1 times [2024-11-06 15:21:58,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 15:21:58,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1136192217] [2024-11-06 15:21:58,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 15:21:58,674 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 15:21:58,674 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 15:21:58,676 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 15:21:58,677 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 15:21:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 15:21:59,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-06 15:21:59,263 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 15:21:59,280 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-06 15:21:59,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 15:21:59,280 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 15:21:59,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1136192217] [2024-11-06 15:21:59,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1136192217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 15:21:59,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 15:21:59,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 15:21:59,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425800079] [2024-11-06 15:21:59,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 15:21:59,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-06 15:21:59,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 15:21:59,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-06 15:21:59,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 15:21:59,302 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-06 15:21:59,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 15:21:59,314 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2024-11-06 15:21:59,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-06 15:21:59,315 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 23 [2024-11-06 15:21:59,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 15:21:59,319 INFO L225 Difference]: With dead ends: 35 [2024-11-06 15:21:59,319 INFO L226 Difference]: Without dead ends: 17 [2024-11-06 15:21:59,332 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-06 15:21:59,335 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 15:21:59,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 15:21:59,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-06 15:21:59,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-06 15:21:59,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-06 15:21:59,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-11-06 15:21:59,356 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 23 [2024-11-06 15:21:59,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 15:21:59,356 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-11-06 15:21:59,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-06 15:21:59,357 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-11-06 15:21:59,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-06 15:21:59,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 15:21:59,357 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 15:21:59,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 15:21:59,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 15:21:59,559 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 15:21:59,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 15:21:59,559 INFO L85 PathProgramCache]: Analyzing trace with hash 265954675, now seen corresponding path program 1 times [2024-11-06 15:21:59,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 15:21:59,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1707694843] [2024-11-06 15:21:59,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 15:21:59,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 15:21:59,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 15:21:59,563 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 15:21:59,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 15:22:00,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 15:22:00,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-06 15:22:00,100 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 15:22:00,276 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-06 15:22:00,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 15:22:00,395 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 15:22:00,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707694843] [2024-11-06 15:22:00,396 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707694843] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 15:22:00,396 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1365908731] [2024-11-06 15:22:00,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 15:22:00,396 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-06 15:22:00,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-06 15:22:00,399 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-06 15:22:00,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-06 15:22:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 15:22:01,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 884 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-06 15:22:01,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 15:22:01,417 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-06 15:22:01,418 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 15:22:01,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1365908731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 15:22:01,418 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 15:22:01,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 7 [2024-11-06 15:22:01,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [444961611] [2024-11-06 15:22:01,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 15:22:01,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 15:22:01,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 15:22:01,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 15:22:01,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-06 15:22:01,420 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-06 15:22:01,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 15:22:01,699 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-06 15:22:01,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 15:22:01,700 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-11-06 15:22:01,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 15:22:01,701 INFO L225 Difference]: With dead ends: 27 [2024-11-06 15:22:01,701 INFO L226 Difference]: Without dead ends: 25 [2024-11-06 15:22:01,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-06 15:22:01,702 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 15:22:01,702 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 38 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 15:22:01,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-06 15:22:01,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-06 15:22:01,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-06 15:22:01,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2024-11-06 15:22:01,707 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 23 [2024-11-06 15:22:01,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 15:22:01,707 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-11-06 15:22:01,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-06 15:22:01,708 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-11-06 15:22:01,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-06 15:22:01,708 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 15:22:01,709 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-06 15:22:01,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-06 15:22:01,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2024-11-06 15:22:02,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-06 15:22:02,110 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 15:22:02,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 15:22:02,110 INFO L85 PathProgramCache]: Analyzing trace with hash 416519459, now seen corresponding path program 1 times [2024-11-06 15:22:02,111 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 15:22:02,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [272152423] [2024-11-06 15:22:02,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 15:22:02,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 15:22:02,112 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 15:22:02,113 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 15:22:02,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 15:22:02,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 15:22:02,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 1668 conjuncts, 43 conjuncts are in the unsatisfiable core [2024-11-06 15:22:02,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 15:22:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-06 15:22:03,267 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 15:22:03,358 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 15:22:03,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [272152423] [2024-11-06 15:22:03,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [272152423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 15:22:03,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1068074853] [2024-11-06 15:22:03,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 15:22:03,359 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-06 15:22:03,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-06 15:22:03,361 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-06 15:22:03,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2024-11-06 15:22:04,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 15:22:05,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 1668 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-06 15:22:05,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 15:22:05,325 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-06 15:22:05,326 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 15:22:05,405 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1068074853] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 15:22:05,405 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 15:22:05,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 10 [2024-11-06 15:22:05,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128713118] [2024-11-06 15:22:05,406 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 15:22:05,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-06 15:22:05,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 15:22:05,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-06 15:22:05,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-06 15:22:05,407 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-06 15:22:06,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 15:22:06,132 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2024-11-06 15:22:06,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-06 15:22:06,133 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) Word has length 44 [2024-11-06 15:22:06,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 15:22:06,134 INFO L225 Difference]: With dead ends: 36 [2024-11-06 15:22:06,134 INFO L226 Difference]: Without dead ends: 34 [2024-11-06 15:22:06,134 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 83 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2024-11-06 15:22:06,135 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 7 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 15:22:06,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 76 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 15:22:06,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-06 15:22:06,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-06 15:22:06,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-06 15:22:06,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2024-11-06 15:22:06,140 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 44 [2024-11-06 15:22:06,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 15:22:06,141 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2024-11-06 15:22:06,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.4444444444444446) internal successors, (22), 10 states have internal predecessors, (22), 3 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-06 15:22:06,141 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-06 15:22:06,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-06 15:22:06,142 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 15:22:06,142 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2024-11-06 15:22:06,160 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-06 15:22:06,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Forceful destruction successful, exit code 0 [2024-11-06 15:22:06,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-06 15:22:06,543 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 15:22:06,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 15:22:06,544 INFO L85 PathProgramCache]: Analyzing trace with hash 223728499, now seen corresponding path program 2 times [2024-11-06 15:22:06,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 15:22:06,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1624569363] [2024-11-06 15:22:06,548 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 15:22:06,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 15:22:06,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 15:22:06,549 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 15:22:06,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-06 15:22:07,853 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-06 15:22:07,853 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 15:22:07,883 INFO L255 TraceCheckSpWp]: Trace formula consists of 2452 conjuncts, 126 conjuncts are in the unsatisfiable core [2024-11-06 15:22:07,900 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 15:22:11,668 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 24 proven. 55 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-06 15:22:11,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 15:22:17,962 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse4 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse22 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_355~0#1|))) (let ((.cse16 (= (_ bv0 8) |c_ULTIMATE.start_main_~state_374~0#1|)) (.cse15 (= (_ bv0 32) .cse22)) (.cse17 (forall ((|v_ULTIMATE.start_main_~var_397_arg_0~0#1_20| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_393_arg_1~0#1_18| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_397_arg_0~0#1_20|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_393_arg_1~0#1_18|))))))))))) (_ bv0 8))))) (let ((.cse19 (or .cse16 (not .cse15) .cse17)) (.cse18 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_351~0#1|))) (let ((.cse7 (= (_ bv0 8) |c_ULTIMATE.start_main_~input_7~0#1|)) (.cse21 ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse18)))) (.cse9 (and (or .cse15 .cse16 .cse17) .cse19)) (.cse20 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_11~0#1|))) (let ((.cse8 (forall ((|v_ULTIMATE.start_main_~var_365_arg_1~0#1_16| (_ BitVec 8))) (not (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_365_arg_1~0#1_16|)))))))))) (.cse10 (or (forall ((|v_ULTIMATE.start_main_~var_365_arg_1~0#1_16| (_ BitVec 8))) (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_365_arg_1~0#1_16|)))))))) .cse9)) (.cse13 (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_359_arg_0~0#1_16| (_ BitVec 8))) (not (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd (bvneg ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~input_5~0#1|) .cse4)))) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_359_arg_0~0#1_16|) .cse21))) .cse4))) .cse22))))))))))))))) (.cse12 (or (forall ((|ULTIMATE.start_main_~input_5~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_359_arg_0~0#1_16| (_ BitVec 8))) (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse20 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd (bvneg ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~input_5~0#1|) .cse4)))) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_359_arg_0~0#1_16|) .cse21))) .cse4))) .cse22))))))))))))) .cse9)) (.cse11 (not .cse7))) (let ((.cse3 (let ((.cse14 (and (or .cse15 (and (or .cse16 .cse17) (or (not .cse16) (forall ((|v_ULTIMATE.start_main_~var_354_arg_1~0#1_18| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_397_arg_0~0#1_20| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_397_arg_0~0#1_20|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv1 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse18 ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_354_arg_1~0#1_18|)))))))))))))))))))))))) .cse4)) (_ bv0 8)))))) .cse19))) (and (or .cse7 (and (or .cse14 .cse8) .cse10)) (or (and (or .cse14 .cse13) .cse12) .cse11)))) (.cse2 (and (or .cse7 (and (or .cse8 .cse9) .cse10)) (or .cse11 (and .cse12 (or .cse13 .cse9)))))) (let ((.cse1 (let ((.cse6 (= (bvand |c_ULTIMATE.start_main_~state_338~0#1| |c_ULTIMATE.start_main_~mask_SORT_3~0#1|) |c_ULTIMATE.start_main_~state_370~0#1|))) (and (or .cse6 .cse3) (or .cse2 (not .cse6))))) (.cse5 (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_13~0#1|) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_12~0#1|))))))))) (and (or (let ((.cse0 (= ((_ extract 7 0) (bvand .cse4 (_ bv254 32))) (_ bv0 8)))) (and (or .cse0 .cse1) (or (and (or .cse2 (forall ((|v_ULTIMATE.start_main_~var_341_arg_2~0#1_16| (_ BitVec 32))) (not (= (bvand |v_ULTIMATE.start_main_~var_341_arg_2~0#1_16| |c_ULTIMATE.start_main_~mask_SORT_3~0#1|) |c_ULTIMATE.start_main_~state_370~0#1|)))) (or (forall ((|v_ULTIMATE.start_main_~var_341_arg_2~0#1_16| (_ BitVec 32))) (= (bvand |v_ULTIMATE.start_main_~var_341_arg_2~0#1_16| |c_ULTIMATE.start_main_~mask_SORT_3~0#1|) |c_ULTIMATE.start_main_~state_370~0#1|)) .cse3)) (not .cse0)))) .cse5) (or (= (_ bv0 8) ((_ extract 7 0) (bvand .cse4 (_ bv255 32)))) .cse1 (not .cse5)))))))))) is different from false [2024-11-06 15:22:35,786 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 15:22:35,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624569363] [2024-11-06 15:22:35,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624569363] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 15:22:35,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1820875246] [2024-11-06 15:22:35,787 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 15:22:35,787 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-06 15:22:35,787 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-06 15:22:35,788 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-06 15:22:35,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2024-11-06 15:22:38,494 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-06 15:22:38,494 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 15:22:38,608 INFO L255 TraceCheckSpWp]: Trace formula consists of 2452 conjuncts, 86 conjuncts are in the unsatisfiable core [2024-11-06 15:22:38,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 15:23:25,082 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) stderr output: (error "out of memory") [2024-11-06 15:23:25,083 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-06 15:23:25,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 101 [2024-11-06 15:23:25,105 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-06 15:23:25,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2024-11-06 15:23:25,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-06 15:23:25,485 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:86) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:947) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:786) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:374) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:323) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:553) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:416) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:195) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:290) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:180) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:159) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:407) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:342) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:324) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:426) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:143) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 46 more [2024-11-06 15:23:25,492 INFO L158 Benchmark]: Toolchain (without parser) took 89488.36ms. Allocated memory was 312.5MB in the beginning and 933.2MB in the end (delta: 620.8MB). Free memory was 269.5MB in the beginning and 492.4MB in the end (delta: -222.9MB). Peak memory consumption was 398.5MB. Max. memory is 8.0GB. [2024-11-06 15:23:25,493 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 207.6MB. Free memory is still 160.4MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-06 15:23:25,493 INFO L158 Benchmark]: CACSL2BoogieTranslator took 616.65ms. Allocated memory is still 312.5MB. Free memory was 269.5MB in the beginning and 251.6MB in the end (delta: 17.8MB). Peak memory consumption was 67.0MB. Max. memory is 8.0GB. [2024-11-06 15:23:25,493 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.72ms. Allocated memory is still 312.5MB. Free memory was 251.6MB in the beginning and 233.3MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2024-11-06 15:23:25,493 INFO L158 Benchmark]: Boogie Preprocessor took 133.54ms. Allocated memory is still 312.5MB. Free memory was 233.3MB in the beginning and 213.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2024-11-06 15:23:25,493 INFO L158 Benchmark]: RCFGBuilder took 1711.21ms. Allocated memory was 312.5MB in the beginning and 448.8MB in the end (delta: 136.3MB). Free memory was 212.8MB in the beginning and 246.9MB in the end (delta: -34.1MB). Peak memory consumption was 112.4MB. Max. memory is 8.0GB. [2024-11-06 15:23:25,494 INFO L158 Benchmark]: TraceAbstraction took 86903.92ms. Allocated memory was 448.8MB in the beginning and 933.2MB in the end (delta: 484.4MB). Free memory was 246.4MB in the beginning and 492.4MB in the end (delta: -246.0MB). Peak memory consumption was 238.2MB. Max. memory is 8.0GB. [2024-11-06 15:23:25,494 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 207.6MB. Free memory is still 160.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 616.65ms. Allocated memory is still 312.5MB. Free memory was 269.5MB in the beginning and 251.6MB in the end (delta: 17.8MB). Peak memory consumption was 67.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 118.72ms. Allocated memory is still 312.5MB. Free memory was 251.6MB in the beginning and 233.3MB in the end (delta: 18.3MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Preprocessor took 133.54ms. Allocated memory is still 312.5MB. Free memory was 233.3MB in the beginning and 213.4MB in the end (delta: 19.9MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * RCFGBuilder took 1711.21ms. Allocated memory was 312.5MB in the beginning and 448.8MB in the end (delta: 136.3MB). Free memory was 212.8MB in the beginning and 246.9MB in the end (delta: -34.1MB). Peak memory consumption was 112.4MB. Max. memory is 8.0GB. * TraceAbstraction took 86903.92ms. Allocated memory was 448.8MB in the beginning and 933.2MB in the end (delta: 484.4MB). Free memory was 246.4MB in the beginning and 492.4MB in the end (delta: -246.0MB). Peak memory consumption was 238.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...