/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.sw_ball2004_2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-17387ad-m [2024-11-06 16:18:55,223 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 16:18:55,281 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 16:18:55,285 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 16:18:55,285 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 16:18:55,304 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 16:18:55,304 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 16:18:55,305 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 16:18:55,305 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 16:18:55,307 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 16:18:55,307 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 16:18:55,307 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 16:18:55,307 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 16:18:55,307 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 16:18:55,308 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 16:18:55,308 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 16:18:55,308 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 16:18:55,308 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 16:18:55,308 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 16:18:55,309 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 16:18:55,309 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 16:18:55,313 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-06 16:18:55,313 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-06 16:18:55,314 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 16:18:55,314 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-06 16:18:55,314 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 16:18:55,314 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 16:18:55,314 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 16:18:55,314 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 16:18:55,314 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 16:18:55,315 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 16:18:55,315 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 16:18:55,315 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 16:18:55,315 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 16:18:55,315 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 16:18:55,315 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-06 16:18:55,315 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-06 16:18:55,316 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 16:18:55,316 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 16:18:55,316 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 16:18:55,316 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 16:18:55,317 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FOX [2024-11-06 16:18:55,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 16:18:55,517 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 16:18:55,518 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 16:18:55,519 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 16:18:55,519 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 16:18:55,520 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_2.c [2024-11-06 16:18:56,855 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 16:18:57,059 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 16:18:57,059 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.sw_ball2004_2.c [2024-11-06 16:18:57,067 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb7243fdb/43407d6ddad44431b40e614ea62d6e6d/FLAG64f588f0e [2024-11-06 16:18:57,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fb7243fdb/43407d6ddad44431b40e614ea62d6e6d [2024-11-06 16:18:57,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 16:18:57,443 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-06 16:18:57,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 16:18:57,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 16:18:57,448 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 16:18:57,449 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:57,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17e22aae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57, skipping insertion in model container [2024-11-06 16:18:57,450 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:57,482 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 16:18:57,642 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.sw_ball2004_2.c[1253,1266] [2024-11-06 16:18:57,804 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 16:18:57,816 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 16:18:57,829 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.sw_ball2004_2.c[1253,1266] [2024-11-06 16:18:57,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 16:18:57,903 INFO L204 MainTranslator]: Completed translation [2024-11-06 16:18:57,903 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57 WrapperNode [2024-11-06 16:18:57,903 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 16:18:57,904 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 16:18:57,904 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 16:18:57,904 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 16:18:57,909 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:57,926 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:57,961 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 654 [2024-11-06 16:18:57,962 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 16:18:57,962 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 16:18:57,962 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 16:18:57,962 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 16:18:57,970 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:57,971 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:57,976 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:57,996 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 16:18:57,996 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:57,996 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:58,009 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:58,012 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:58,015 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:58,017 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:58,022 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 16:18:58,023 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 16:18:58,023 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 16:18:58,023 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 16:18:58,024 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57" (1/1) ... [2024-11-06 16:18:58,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 16:18:58,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 16:18:58,048 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 16:18:58,056 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 16:18:58,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 16:18:58,080 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-06 16:18:58,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 16:18:58,080 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 16:18:58,234 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 16:18:58,236 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 16:18:58,644 INFO L? ?]: Removed 26 outVars from TransFormulas that were not future-live. [2024-11-06 16:18:58,644 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 16:18:58,654 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 16:18:58,654 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 16:18:58,654 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:18:58 BoogieIcfgContainer [2024-11-06 16:18:58,654 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 16:18:58,658 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 16:18:58,658 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 16:18:58,661 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 16:18:58,661 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 04:18:57" (1/3) ... [2024-11-06 16:18:58,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1a7f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:18:58, skipping insertion in model container [2024-11-06 16:18:58,662 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 04:18:57" (2/3) ... [2024-11-06 16:18:58,662 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d1a7f10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 04:18:58, skipping insertion in model container [2024-11-06 16:18:58,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 04:18:58" (3/3) ... [2024-11-06 16:18:58,665 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.sw_ball2004_2.c [2024-11-06 16:18:58,676 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 16:18:58,677 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 16:18:58,725 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 16:18:58,730 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;@1d9eb843, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 16:18:58,731 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 16:18:58,734 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) [2024-11-06 16:18:58,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-06 16:18:58,738 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 16:18:58,738 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-06 16:18:58,739 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 16:18:58,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 16:18:58,744 INFO L85 PathProgramCache]: Analyzing trace with hash 28694789, now seen corresponding path program 1 times [2024-11-06 16:18:58,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 16:18:58,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124019245] [2024-11-06 16:18:58,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 16:18:58,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 16:18:58,754 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 16:18:58,756 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 16:18:58,760 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 16:18:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 16:18:58,919 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-06 16:18:58,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 16:18:59,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 16:18:59,004 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 16:18:59,004 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 16:18:59,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124019245] [2024-11-06 16:18:59,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124019245] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 16:18:59,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 16:18:59,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 16:18:59,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498796212] [2024-11-06 16:18:59,008 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 16:18:59,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 16:18:59,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 16:18:59,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 16:18:59,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 16:18:59,030 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 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-06 16:18:59,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 16:18:59,069 INFO L93 Difference]: Finished difference Result 18 states and 23 transitions. [2024-11-06 16:18:59,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 16:18:59,072 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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 [2024-11-06 16:18:59,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 16:18:59,076 INFO L225 Difference]: With dead ends: 18 [2024-11-06 16:18:59,077 INFO L226 Difference]: Without dead ends: 10 [2024-11-06 16:18:59,078 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 16:18:59,081 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-06 16:18:59,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 11 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-06 16:18:59,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2024-11-06 16:18:59,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2024-11-06 16:18:59,101 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) [2024-11-06 16:18:59,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2024-11-06 16:18:59,104 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2024-11-06 16:18:59,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 16:18:59,104 INFO L471 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2024-11-06 16:18:59,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 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) [2024-11-06 16:18:59,104 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2024-11-06 16:18:59,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2024-11-06 16:18:59,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 16:18:59,105 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-06 16:18:59,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-06 16:18:59,305 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 16:18:59,306 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 16:18:59,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 16:18:59,307 INFO L85 PathProgramCache]: Analyzing trace with hash 152739811, now seen corresponding path program 1 times [2024-11-06 16:18:59,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 16:18:59,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1722206842] [2024-11-06 16:18:59,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 16:18:59,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 16:18:59,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 16:18:59,312 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 16:18:59,313 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 16:18:59,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 16:18:59,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-06 16:18:59,524 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 16:18:59,735 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 16:18:59,735 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 16:19:05,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 16:19:05,256 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 16:19:05,256 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1722206842] [2024-11-06 16:19:05,256 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1722206842] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 16:19:05,256 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-06 16:19:05,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-06 16:19:05,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838184043] [2024-11-06 16:19:05,257 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-06 16:19:05,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-06 16:19:05,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2024-11-06 16:19:05,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-06 16:19:05,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=60, Unknown=1, NotChecked=0, Total=90 [2024-11-06 16:19:05,259 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2024-11-06 16:19:05,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 16:19:05,704 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2024-11-06 16:19:05,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-06 16:19:05,705 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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 [2024-11-06 16:19:05,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 16:19:05,706 INFO L225 Difference]: With dead ends: 15 [2024-11-06 16:19:05,706 INFO L226 Difference]: Without dead ends: 13 [2024-11-06 16:19:05,707 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=46, Invalid=85, Unknown=1, NotChecked=0, Total=132 [2024-11-06 16:19:05,708 INFO L432 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 16:19:05,709 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 19 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 16:19:05,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2024-11-06 16:19:05,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2024-11-06 16:19:05,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 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) [2024-11-06 16:19:05,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2024-11-06 16:19:05,713 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2024-11-06 16:19:05,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 16:19:05,713 INFO L471 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2024-11-06 16:19:05,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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) [2024-11-06 16:19:05,714 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2024-11-06 16:19:05,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-06 16:19:05,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 16:19:05,714 INFO L215 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2024-11-06 16:19:05,728 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 16:19:05,914 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 [2024-11-06 16:19:05,915 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 16:19:05,915 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 16:19:05,915 INFO L85 PathProgramCache]: Analyzing trace with hash 1906115653, now seen corresponding path program 2 times [2024-11-06 16:19:05,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2024-11-06 16:19:05,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1687302175] [2024-11-06 16:19:05,916 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-06 16:19:05,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 16:19:05,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 16:19:05,919 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 16:19:05,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 16:19:06,119 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-06 16:19:06,119 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-06 16:19:06,123 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-06 16:19:06,130 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 16:19:08,542 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 16:19:08,542 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 16:19:12,389 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 16:19:12,390 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2024-11-06 16:19:12,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1687302175] [2024-11-06 16:19:12,391 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-06 16:19:12,397 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 101 [2024-11-06 16:19:12,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 16:19:12,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 16:19:12,592 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.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:912) 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.computeBackwardSequence(IterativePredicateTransformer.java:395) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:267) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:324) 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.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:210) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) 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) ... 45 more [2024-11-06 16:19:12,596 INFO L158 Benchmark]: Toolchain (without parser) took 15151.95ms. Allocated memory was 221.2MB in the beginning and 327.2MB in the end (delta: 105.9MB). Free memory was 154.7MB in the beginning and 161.2MB in the end (delta: -6.5MB). Peak memory consumption was 100.0MB. Max. memory is 8.0GB. [2024-11-06 16:19:12,596 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 221.2MB. Free memory is still 169.5MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-06 16:19:12,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 458.97ms. Allocated memory was 221.2MB in the beginning and 327.2MB in the end (delta: 105.9MB). Free memory was 154.5MB in the beginning and 277.8MB in the end (delta: -123.4MB). Peak memory consumption was 20.8MB. Max. memory is 8.0GB. [2024-11-06 16:19:12,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.56ms. Allocated memory is still 327.2MB. Free memory was 277.8MB in the beginning and 272.1MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2024-11-06 16:19:12,597 INFO L158 Benchmark]: Boogie Preprocessor took 60.13ms. Allocated memory is still 327.2MB. Free memory was 272.1MB in the beginning and 265.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2024-11-06 16:19:12,597 INFO L158 Benchmark]: RCFGBuilder took 631.47ms. Allocated memory is still 327.2MB. Free memory was 265.8MB in the beginning and 182.9MB in the end (delta: 82.8MB). Peak memory consumption was 82.8MB. Max. memory is 8.0GB. [2024-11-06 16:19:12,597 INFO L158 Benchmark]: TraceAbstraction took 13936.67ms. Allocated memory is still 327.2MB. Free memory was 182.4MB in the beginning and 161.2MB in the end (delta: 21.2MB). Peak memory consumption was 21.6MB. Max. memory is 8.0GB. [2024-11-06 16:19:12,599 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 221.2MB. Free memory is still 169.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 458.97ms. Allocated memory was 221.2MB in the beginning and 327.2MB in the end (delta: 105.9MB). Free memory was 154.5MB in the beginning and 277.8MB in the end (delta: -123.4MB). Peak memory consumption was 20.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.56ms. Allocated memory is still 327.2MB. Free memory was 277.8MB in the beginning and 272.1MB in the end (delta: 5.8MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 60.13ms. Allocated memory is still 327.2MB. Free memory was 272.1MB in the beginning and 265.8MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 631.47ms. Allocated memory is still 327.2MB. Free memory was 265.8MB in the beginning and 182.9MB in the end (delta: 82.8MB). Peak memory consumption was 82.8MB. Max. memory is 8.0GB. * TraceAbstraction took 13936.67ms. Allocated memory is still 327.2MB. Free memory was 182.4MB in the beginning and 161.2MB in the end (delta: 21.2MB). Peak memory consumption was 21.6MB. 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...