/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --cacsl2boogietranslator.allow.undefined.functions true --traceabstraction.smt.solver External_ModelsAndUnsatCoreMode --traceabstraction.command.for.external.solver 'cvc4 --incremental --print-success --lang smt' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w8_d32_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-04 21:06:30,442 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-04 21:06:30,484 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-04 21:06:30,487 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-04 21:06:30,488 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-04 21:06:30,505 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-04 21:06:30,506 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-04 21:06:30,506 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-04 21:06:30,506 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-04 21:06:30,507 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-04 21:06:30,507 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-04 21:06:30,507 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-04 21:06:30,507 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-04 21:06:30,508 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-04 21:06:30,508 INFO L153 SettingsManager]: * Use SBE=true [2024-11-04 21:06:30,508 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-04 21:06:30,508 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-04 21:06:30,509 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-04 21:06:30,509 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-04 21:06:30,509 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-04 21:06:30,509 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-04 21:06:30,510 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-04 21:06:30,510 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-04 21:06:30,510 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-04 21:06:30,511 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-04 21:06:30,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-04 21:06:30,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-04 21:06:30,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-04 21:06:30,511 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-04 21:06:30,512 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-04 21:06:30,512 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-04 21:06:30,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 21:06:30,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-04 21:06:30,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-04 21:06:30,513 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-04 21:06:30,513 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-04 21:06:30,513 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-04 21:06:30,513 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-04 21:06:30,513 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-04 21:06:30,514 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-04 21:06:30,514 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-04 21:06:30,516 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> cvc4 --incremental --print-success --lang smt [2024-11-04 21:06:30,710 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-04 21:06:30,727 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-04 21:06:30,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-04 21:06:30,730 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-04 21:06:30,730 INFO L274 PluginConnector]: CDTParser initialized [2024-11-04 21:06:30,731 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w8_d32_e0.c [2024-11-04 21:06:32,114 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-04 21:06:32,508 INFO L384 CDTParser]: Found 1 translation units. [2024-11-04 21:06:32,508 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.arbitrated_top_n4_w8_d32_e0.c [2024-11-04 21:06:32,541 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4533dad5d/2887113317fb42f38095912276d03141/FLAGd3dee0e09 [2024-11-04 21:06:32,557 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4533dad5d/2887113317fb42f38095912276d03141 [2024-11-04 21:06:32,560 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-04 21:06:32,562 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-04 21:06:32,563 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-04 21:06:32,563 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-04 21:06:32,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-04 21:06:32,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:06:32" (1/1) ... [2024-11-04 21:06:32,570 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74b4c3e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:32, skipping insertion in model container [2024-11-04 21:06:32,570 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.11 09:06:32" (1/1) ... [2024-11-04 21:06:32,668 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-04 21:06:32,842 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.arbitrated_top_n4_w8_d32_e0.c[1270,1283] [2024-11-04 21:06:33,265 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 21:06:33,274 INFO L200 MainTranslator]: Completed pre-run [2024-11-04 21:06:33,282 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.arbitrated_top_n4_w8_d32_e0.c[1270,1283] [2024-11-04 21:06:33,459 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-04 21:06:33,472 INFO L204 MainTranslator]: Completed translation [2024-11-04 21:06:33,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33 WrapperNode [2024-11-04 21:06:33,474 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-04 21:06:33,475 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-04 21:06:33,475 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-04 21:06:33,475 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-04 21:06:33,480 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33" (1/1) ... [2024-11-04 21:06:33,543 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33" (1/1) ... [2024-11-04 21:06:33,731 INFO L138 Inliner]: procedures = 17, calls = 21, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4924 [2024-11-04 21:06:33,732 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-04 21:06:33,732 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-04 21:06:33,733 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-04 21:06:33,733 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-04 21:06:33,742 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33" (1/1) ... [2024-11-04 21:06:33,742 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33" (1/1) ... [2024-11-04 21:06:33,771 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33" (1/1) ... [2024-11-04 21:06:33,832 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]. [2024-11-04 21:06:33,832 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33" (1/1) ... [2024-11-04 21:06:33,833 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33" (1/1) ... [2024-11-04 21:06:33,885 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33" (1/1) ... [2024-11-04 21:06:33,895 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33" (1/1) ... [2024-11-04 21:06:33,909 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33" (1/1) ... [2024-11-04 21:06:33,925 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33" (1/1) ... [2024-11-04 21:06:33,948 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-04 21:06:33,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-04 21:06:33,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-04 21:06:33,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-04 21:06:33,951 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33" (1/1) ... [2024-11-04 21:06:33,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-04 21:06:33,965 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-04 21:06:33,982 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) [2024-11-04 21:06:33,997 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 [2024-11-04 21:06:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-04 21:06:34,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-04 21:06:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-04 21:06:34,021 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-04 21:06:34,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-04 21:06:34,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-04 21:06:34,565 INFO L238 CfgBuilder]: Building ICFG [2024-11-04 21:06:34,567 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-04 21:06:37,557 INFO L? ?]: Removed 1434 outVars from TransFormulas that were not future-live. [2024-11-04 21:06:37,558 INFO L287 CfgBuilder]: Performing block encoding [2024-11-04 21:06:37,566 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-04 21:06:37,567 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-04 21:06:37,567 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:06:37 BoogieIcfgContainer [2024-11-04 21:06:37,567 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-04 21:06:37,568 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-04 21:06:37,568 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-04 21:06:37,571 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-04 21:06:37,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.11 09:06:32" (1/3) ... [2024-11-04 21:06:37,571 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5d2c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:06:37, skipping insertion in model container [2024-11-04 21:06:37,571 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.11 09:06:33" (2/3) ... [2024-11-04 21:06:37,572 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e5d2c88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.11 09:06:37, skipping insertion in model container [2024-11-04 21:06:37,572 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.11 09:06:37" (3/3) ... [2024-11-04 21:06:37,573 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.arbitrated_top_n4_w8_d32_e0.c [2024-11-04 21:06:37,584 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-04 21:06:37,584 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-04 21:06:37,621 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-04 21:06:37,626 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;@15ac60b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-04 21:06:37,626 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-04 21:06:37,629 INFO L276 IsEmpty]: Start isEmpty. Operand has 40 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-04 21:06:37,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-04 21:06:37,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 21:06:37,637 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 21:06:37,638 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 21:06:37,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 21:06:37,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1644883339, now seen corresponding path program 1 times [2024-11-04 21:06:37,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 21:06:37,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [329298321] [2024-11-04 21:06:37,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 21:06:37,649 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 21:06:37,650 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 21:06:37,653 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 21:06:37,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Waiting until timeout for monitored process [2024-11-04 21:06:39,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 21:06:39,407 INFO L255 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-04 21:06:39,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 21:06:39,457 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-04 21:06:39,457 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 21:06:39,531 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-04 21:06:39,532 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 21:06:39,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [329298321] [2024-11-04 21:06:39,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [329298321] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 21:06:39,533 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 21:06:39,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-04 21:06:39,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849872440] [2024-11-04 21:06:39,535 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 21:06:39,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-04 21:06:39,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 21:06:39,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-04 21:06:39,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-04 21:06:39,561 INFO L87 Difference]: Start difference. First operand has 40 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 25 states have internal predecessors, (28), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-04 21:06:39,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 21:06:39,576 INFO L93 Difference]: Finished difference Result 75 states and 117 transitions. [2024-11-04 21:06:39,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-04 21:06:39,578 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 83 [2024-11-04 21:06:39,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 21:06:39,583 INFO L225 Difference]: With dead ends: 75 [2024-11-04 21:06:39,583 INFO L226 Difference]: Without dead ends: 37 [2024-11-04 21:06:39,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-04 21:06:39,588 INFO L432 NwaCegarLoop]: 49 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, 49 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 [2024-11-04 21:06:39,588 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-04 21:06:39,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-04 21:06:39,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-04 21:06:39,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 22 states have (on average 1.0454545454545454) internal successors, (23), 22 states have internal predecessors, (23), 13 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-04 21:06:39,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 49 transitions. [2024-11-04 21:06:39,617 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 49 transitions. Word has length 83 [2024-11-04 21:06:39,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 21:06:39,617 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 49 transitions. [2024-11-04 21:06:39,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 1 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2024-11-04 21:06:39,618 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 49 transitions. [2024-11-04 21:06:39,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-04 21:06:39,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 21:06:39,620 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-04 21:06:39,651 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (2)] Ended with exit code 0 [2024-11-04 21:06:39,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 21:06:39,825 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 21:06:39,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 21:06:39,826 INFO L85 PathProgramCache]: Analyzing trace with hash -1385434447, now seen corresponding path program 1 times [2024-11-04 21:06:39,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 21:06:39,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437592277] [2024-11-04 21:06:39,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 21:06:39,827 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 21:06:39,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 21:06:39,829 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 21:06:39,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Waiting until timeout for monitored process [2024-11-04 21:06:41,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 21:06:42,084 INFO L255 TraceCheckSpWp]: Trace formula consists of 1741 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-04 21:06:42,099 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 21:06:42,416 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-04 21:06:42,416 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 21:06:42,978 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-11-04 21:06:42,978 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 21:06:42,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437592277] [2024-11-04 21:06:42,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [437592277] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-04 21:06:42,979 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-04 21:06:42,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-04 21:06:42,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915508054] [2024-11-04 21:06:42,979 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-04 21:06:42,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-04 21:06:42,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 21:06:42,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-04 21:06:42,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-04 21:06:42,983 INFO L87 Difference]: Start difference. First operand 37 states and 49 transitions. Second operand has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-04 21:06:43,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 21:06:43,643 INFO L93 Difference]: Finished difference Result 67 states and 92 transitions. [2024-11-04 21:06:43,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-04 21:06:43,644 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 83 [2024-11-04 21:06:43,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 21:06:43,646 INFO L225 Difference]: With dead ends: 67 [2024-11-04 21:06:43,646 INFO L226 Difference]: Without dead ends: 65 [2024-11-04 21:06:43,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-04 21:06:43,647 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-04 21:06:43,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 162 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-04 21:06:43,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2024-11-04 21:06:43,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2024-11-04 21:06:43,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 37 states have (on average 1.027027027027027) internal successors, (38), 37 states have internal predecessors, (38), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-04 21:06:43,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 90 transitions. [2024-11-04 21:06:43,658 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 90 transitions. Word has length 83 [2024-11-04 21:06:43,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 21:06:43,659 INFO L471 AbstractCegarLoop]: Abstraction has 65 states and 90 transitions. [2024-11-04 21:06:43,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.166666666666667) internal successors, (37), 6 states have internal predecessors, (37), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-04 21:06:43,660 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 90 transitions. [2024-11-04 21:06:43,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-11-04 21:06:43,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 21:06:43,663 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-04 21:06:43,693 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (3)] Ended with exit code 0 [2024-11-04 21:06:43,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 21:06:43,864 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 21:06:43,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 21:06:43,865 INFO L85 PathProgramCache]: Analyzing trace with hash -2082684701, now seen corresponding path program 1 times [2024-11-04 21:06:43,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 21:06:43,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267169327] [2024-11-04 21:06:43,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 21:06:43,866 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 21:06:43,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 21:06:43,868 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) [2024-11-04 21:06:43,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2024-11-04 21:06:48,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 21:06:48,285 INFO L255 TraceCheckSpWp]: Trace formula consists of 3409 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-04 21:06:48,306 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 21:06:48,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 24 proven. 79 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-04 21:06:48,872 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 21:06:53,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1328 backedges. 24 proven. 79 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2024-11-04 21:06:53,529 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 21:06:53,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267169327] [2024-11-04 21:06:53,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1267169327] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-04 21:06:53,530 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-04 21:06:53,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-11-04 21:06:53,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230848395] [2024-11-04 21:06:53,530 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-04 21:06:53,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-04 21:06:53,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-04 21:06:53,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-04 21:06:53,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-04 21:06:53,533 INFO L87 Difference]: Start difference. First operand 65 states and 90 transitions. Second operand has 15 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 15 states have internal predecessors, (74), 8 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 6 states have call predecessors, (52), 8 states have call successors, (52) [2024-11-04 21:06:55,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-04 21:06:55,367 INFO L93 Difference]: Finished difference Result 96 states and 134 transitions. [2024-11-04 21:06:55,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-04 21:06:55,368 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 15 states have internal predecessors, (74), 8 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 6 states have call predecessors, (52), 8 states have call successors, (52) Word has length 164 [2024-11-04 21:06:55,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-04 21:06:55,371 INFO L225 Difference]: With dead ends: 96 [2024-11-04 21:06:55,371 INFO L226 Difference]: Without dead ends: 94 [2024-11-04 21:06:55,372 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-11-04 21:06:55,373 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 16 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 392 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 392 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-04 21:06:55,373 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 165 Invalid, 409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 392 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-04 21:06:55,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2024-11-04 21:06:55,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2024-11-04 21:06:55,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 53 states have (on average 1.0188679245283019) internal successors, (54), 53 states have internal predecessors, (54), 39 states have call successors, (39), 1 states have call predecessors, (39), 1 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2024-11-04 21:06:55,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 132 transitions. [2024-11-04 21:06:55,390 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 132 transitions. Word has length 164 [2024-11-04 21:06:55,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-04 21:06:55,390 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 132 transitions. [2024-11-04 21:06:55,391 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 5.6923076923076925) internal successors, (74), 15 states have internal predecessors, (74), 8 states have call successors, (52), 1 states have call predecessors, (52), 2 states have return successors, (52), 6 states have call predecessors, (52), 8 states have call successors, (52) [2024-11-04 21:06:55,391 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 132 transitions. [2024-11-04 21:06:55,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-11-04 21:06:55,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-04 21:06:55,394 INFO L215 NwaCegarLoop]: trace histogram [39, 39, 39, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2024-11-04 21:06:55,438 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2024-11-04 21:06:55,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 21:06:55,599 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-04 21:06:55,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-04 21:06:55,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1116181263, now seen corresponding path program 2 times [2024-11-04 21:06:55,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-04 21:06:55,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2049349482] [2024-11-04 21:06:55,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-04 21:06:55,601 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2024-11-04 21:06:55,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2024-11-04 21:06:55,603 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2024-11-04 21:06:55,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Waiting until timeout for monitored process [2024-11-04 21:07:02,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-04 21:07:02,448 INFO L255 TraceCheckSpWp]: Trace formula consists of 5077 conjuncts, 156 conjuncts are in the unsatisfiable core [2024-11-04 21:07:02,494 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-04 21:07:26,857 INFO L134 CoverageAnalysis]: Checked inductivity of 3049 backedges. 315 proven. 280 refuted. 0 times theorem prover too weak. 2454 trivial. 0 not checked. [2024-11-04 21:07:26,857 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-04 21:07:44,612 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse21 (= (_ bv0 8) |c_ULTIMATE.start_main_~state_655~0#1|))) (let ((.cse9 (= |c_ULTIMATE.start_main_~input_11~0#1| (_ bv0 8))) (.cse20 (or (forall ((|v_ULTIMATE.start_main_~var_687_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_690_arg_0~0#1_18| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_687_arg_1~0#1_17|)))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_690_arg_0~0#1_18|)))))))) .cse21)) (.cse19 (not .cse21)) (.cse18 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_559~0#1|)) (.cse6 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_170~0#1|))) (let ((.cse14 (= ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_661~0#1|) ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_583~0#1|))) (.cse10 (forall ((|v_ULTIMATE.start_main_~var_574_arg_1~0#1_17| (_ BitVec 8))) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_574_arg_1~0#1_17|))) .cse6))) (_ bv0 32)))) (.cse0 (and .cse20 (or .cse19 (forall ((|v_ULTIMATE.start_main_~var_565_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_581_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_690_arg_0~0#1_18| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_562_arg_1~0#1_17| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_690_arg_0~0#1_18|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_581_arg_1~0#1_17|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv254 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_562_arg_1~0#1_17|) .cse18))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_565_arg_1~0#1_17|))))))))))))))))))))) .cse1))))))) (.cse11 (and (or (forall ((|v_ULTIMATE.start_main_~var_565_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_581_arg_1~0#1_17| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_690_arg_0~0#1_18| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_562_arg_1~0#1_17| (_ BitVec 8))) (= (_ bv0 8) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_690_arg_0~0#1_18|) ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvand (_ bv255 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_562_arg_1~0#1_17|) .cse18))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_565_arg_1~0#1_17|)))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_581_arg_1~0#1_17|)))))))))))))))) .cse19) .cse20)) (.cse12 (forall ((|v_ULTIMATE.start_main_~var_574_arg_1~0#1_17| (_ BitVec 8))) (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_574_arg_1~0#1_17|))) .cse6))) (_ bv0 32))))) (.cse4 ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse18)))) (.cse5 ((_ zero_extend 24) |c_ULTIMATE.start_main_~state_563~0#1|)) (.cse7 (not .cse9)) (.cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_155~0#1|)))))) (and (or (let ((.cse8 (forall ((|ULTIMATE.start_main_~var_542~0#1| (_ BitVec 8))) (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~var_542~0#1|)))) (_ bv1 32)))))))))))))) (and (or .cse0 (and (or (forall ((|ULTIMATE.start_main_~var_542~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_568_arg_0~0#1_17| (_ BitVec 8))) (let ((.cse3 ((_ zero_extend 24) |ULTIMATE.start_main_~var_542~0#1|))) (or (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse3))) (_ bv1 32))))))))))) (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_568_arg_0~0#1_17|) .cse4)))))) .cse5))) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 .cse3))))))))) .cse6))))))) .cse7) (or .cse8 .cse9 .cse10))) (or .cse11 (and (or .cse8 .cse9 .cse12) (or (forall ((|ULTIMATE.start_main_~var_542~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_568_arg_0~0#1_17| (_ BitVec 8))) (let ((.cse13 ((_ zero_extend 24) |ULTIMATE.start_main_~var_542~0#1|))) (or (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse13))) (_ bv1 32))))))))))) (not (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_568_arg_0~0#1_17|) .cse4)))))) .cse5))) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 .cse13))))))))) .cse6)))))))) .cse7))))) .cse14) (or (not .cse14) (let ((.cse16 (forall ((|ULTIMATE.start_main_~var_542~0#1| (_ BitVec 8))) (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot ((_ zero_extend 24) |ULTIMATE.start_main_~var_542~0#1|)))) (_ bv0 32)))))))))))))) (and (or (and (or (forall ((|ULTIMATE.start_main_~var_542~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_568_arg_0~0#1_17| (_ BitVec 8))) (let ((.cse15 ((_ zero_extend 24) |ULTIMATE.start_main_~var_542~0#1|))) (or (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse15))) (_ bv0 32))))))))))) (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_568_arg_0~0#1_17|) .cse4)))))) .cse5))) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 .cse15))))))))) .cse6))))))) .cse7) (or .cse16 .cse9 .cse10)) .cse0) (or .cse11 (and (or .cse16 .cse9 .cse12) (or (forall ((|ULTIMATE.start_main_~var_542~0#1| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_568_arg_0~0#1_17| (_ BitVec 8))) (let ((.cse17 ((_ zero_extend 24) |ULTIMATE.start_main_~var_542~0#1|))) (or (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvor .cse2 ((_ zero_extend 24) ((_ extract 7 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvnot .cse17))) (_ bv0 32))))))))))) (not (= (_ bv0 32) ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvadd ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_568_arg_0~0#1_17|) .cse4)))))) .cse5))) (bvneg ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse1 .cse17))))))))) .cse6)))))))) .cse7)))))))))) is different from false [2024-11-04 21:08:02,270 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") [2024-11-04 21:08:02,272 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-04 21:08:02,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2049349482] [2024-11-04 21:08:02,273 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-04 21:08:02,276 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 [2024-11-04 21:08:02,381 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (5)] Forceful destruction successful, exit code 0 [2024-11-04 21:08:02,473 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2024-11-04 21:08:02,474 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.IpTcStrategyModulePreferences.construct(IpTcStrategyModulePreferences.java:113) 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) ... 44 more [2024-11-04 21:08:02,479 INFO L158 Benchmark]: Toolchain (without parser) took 89917.05ms. Allocated memory was 420.5MB in the beginning and 1.6GB in the end (delta: 1.2GB). Free memory was 360.1MB in the beginning and 1.2GB in the end (delta: -841.5MB). Peak memory consumption was 371.1MB. Max. memory is 8.0GB. [2024-11-04 21:08:02,479 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 224.4MB. Free memory is still 172.8MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-04 21:08:02,479 INFO L158 Benchmark]: CACSL2BoogieTranslator took 911.17ms. Allocated memory is still 420.5MB. Free memory was 359.9MB in the beginning and 335.0MB in the end (delta: 24.8MB). Peak memory consumption was 70.5MB. Max. memory is 8.0GB. [2024-11-04 21:08:02,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 257.03ms. Allocated memory is still 420.5MB. Free memory was 335.0MB in the beginning and 324.3MB in the end (delta: 10.7MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. [2024-11-04 21:08:02,480 INFO L158 Benchmark]: Boogie Preprocessor took 216.10ms. Allocated memory is still 420.5MB. Free memory was 324.3MB in the beginning and 282.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. [2024-11-04 21:08:02,480 INFO L158 Benchmark]: RCFGBuilder took 3617.57ms. Allocated memory was 420.5MB in the beginning and 731.9MB in the end (delta: 311.4MB). Free memory was 282.4MB in the beginning and 237.6MB in the end (delta: 44.8MB). Peak memory consumption was 361.5MB. Max. memory is 8.0GB. [2024-11-04 21:08:02,481 INFO L158 Benchmark]: TraceAbstraction took 84909.84ms. Allocated memory was 731.9MB in the beginning and 1.6GB in the end (delta: 900.7MB). Free memory was 236.5MB in the beginning and 1.2GB in the end (delta: -965.1MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-04 21:08:02,482 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 224.4MB. Free memory is still 172.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 911.17ms. Allocated memory is still 420.5MB. Free memory was 359.9MB in the beginning and 335.0MB in the end (delta: 24.8MB). Peak memory consumption was 70.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 257.03ms. Allocated memory is still 420.5MB. Free memory was 335.0MB in the beginning and 324.3MB in the end (delta: 10.7MB). Peak memory consumption was 19.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 216.10ms. Allocated memory is still 420.5MB. Free memory was 324.3MB in the beginning and 282.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 8.0GB. * RCFGBuilder took 3617.57ms. Allocated memory was 420.5MB in the beginning and 731.9MB in the end (delta: 311.4MB). Free memory was 282.4MB in the beginning and 237.6MB in the end (delta: 44.8MB). Peak memory consumption was 361.5MB. Max. memory is 8.0GB. * TraceAbstraction took 84909.84ms. Allocated memory was 731.9MB in the beginning and 1.6GB in the end (delta: 900.7MB). Free memory was 236.5MB in the beginning and 1.2GB in the end (delta: -965.1MB). There was no memory consumed. 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...