/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 'z3 -smt2 -in SMTLIB2_COMPLIANT=true' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-356b6ba-m [2024-11-01 05:31:17,890 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-01 05:31:17,950 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-01 05:31:17,957 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-01 05:31:17,958 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-01 05:31:17,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-01 05:31:17,991 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-01 05:31:17,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-01 05:31:17,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-01 05:31:17,992 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-01 05:31:17,992 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-01 05:31:17,992 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-01 05:31:17,993 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-01 05:31:17,997 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-01 05:31:17,997 INFO L153 SettingsManager]: * Use SBE=true [2024-11-01 05:31:17,998 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-01 05:31:17,998 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-01 05:31:17,998 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-01 05:31:17,998 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-01 05:31:17,999 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-01 05:31:17,999 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-01 05:31:17,999 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-01 05:31:17,999 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-01 05:31:17,999 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-01 05:31:18,000 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-01 05:31:18,000 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-01 05:31:18,000 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-01 05:31:18,000 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-01 05:31:18,000 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-01 05:31:18,001 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-01 05:31:18,001 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-01 05:31:18,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 05:31:18,001 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-01 05:31:18,001 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-01 05:31:18,001 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-01 05:31:18,002 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-01 05:31:18,002 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-01 05:31:18,002 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-01 05:31:18,003 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-01 05:31:18,003 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-01 05:31:18,003 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-01 05:31:18,004 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-11-01 05:31:18,004 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:31:18,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-01 05:31:18,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-01 05:31:18,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-01 05:31:18,332 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-01 05:31:18,332 INFO L274 PluginConnector]: CDTParser initialized [2024-11-01 05:31:18,333 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2024-11-01 05:31:19,664 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-01 05:31:19,935 INFO L384 CDTParser]: Found 1 translation units. [2024-11-01 05:31:19,935 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c [2024-11-01 05:31:19,944 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7787e5dbc/332c5fa6a5f244b3bcd6e79b43370073/FLAGbec0d360e [2024-11-01 05:31:20,254 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7787e5dbc/332c5fa6a5f244b3bcd6e79b43370073 [2024-11-01 05:31:20,256 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-01 05:31:20,257 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-01 05:31:20,258 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-01 05:31:20,258 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-01 05:31:20,268 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-01 05:31:20,270 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,271 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7456108e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20, skipping insertion in model container [2024-11-01 05:31:20,271 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,311 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-01 05:31:20,467 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1287,1300] [2024-11-01 05:31:20,601 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 05:31:20,618 INFO L200 MainTranslator]: Completed pre-run [2024-11-01 05:31:20,627 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.safe_analog_estimation_convergence.c[1287,1300] [2024-11-01 05:31:20,683 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-01 05:31:20,695 INFO L204 MainTranslator]: Completed translation [2024-11-01 05:31:20,696 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20 WrapperNode [2024-11-01 05:31:20,696 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-01 05:31:20,697 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-01 05:31:20,697 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-01 05:31:20,697 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-01 05:31:20,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,714 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,758 INFO L138 Inliner]: procedures = 17, calls = 10, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 427 [2024-11-01 05:31:20,758 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-01 05:31:20,759 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-01 05:31:20,759 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-01 05:31:20,759 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-01 05:31:20,773 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,773 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,784 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,809 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-01 05:31:20,810 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,810 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,834 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,836 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,847 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,854 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-01 05:31:20,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-01 05:31:20,859 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-01 05:31:20,859 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-01 05:31:20,860 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20" (1/1) ... [2024-11-01 05:31:20,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-01 05:31:20,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:31:20,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-01 05:31:20,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-01 05:31:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-01 05:31:20,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-01 05:31:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-01 05:31:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-01 05:31:20,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-01 05:31:20,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-01 05:31:21,073 INFO L238 CfgBuilder]: Building ICFG [2024-11-01 05:31:21,090 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-01 05:31:21,438 INFO L? ?]: Removed 178 outVars from TransFormulas that were not future-live. [2024-11-01 05:31:21,438 INFO L287 CfgBuilder]: Performing block encoding [2024-11-01 05:31:21,446 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-01 05:31:21,446 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-01 05:31:21,446 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 05:31:21 BoogieIcfgContainer [2024-11-01 05:31:21,447 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-01 05:31:21,448 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-01 05:31:21,448 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-01 05:31:21,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-01 05:31:21,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.11 05:31:20" (1/3) ... [2024-11-01 05:31:21,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615aa5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 05:31:21, skipping insertion in model container [2024-11-01 05:31:21,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.11 05:31:20" (2/3) ... [2024-11-01 05:31:21,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615aa5a5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.11 05:31:21, skipping insertion in model container [2024-11-01 05:31:21,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.11 05:31:21" (3/3) ... [2024-11-01 05:31:21,452 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.safe_analog_estimation_convergence.c [2024-11-01 05:31:21,463 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-01 05:31:21,463 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-01 05:31:21,496 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-01 05:31:21,501 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;@47c04025, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-01 05:31:21,501 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-01 05:31:21,503 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-01 05:31:21,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-11-01 05:31:21,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:31:21,508 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-01 05:31:21,509 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:31:21,512 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:31:21,512 INFO L85 PathProgramCache]: Analyzing trace with hash 896107007, now seen corresponding path program 1 times [2024-11-01 05:31:21,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:31:21,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [481167745] [2024-11-01 05:31:21,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:31:21,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:31:21,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:31:21,521 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) [2024-11-01 05:31:21,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-01 05:31:21,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:31:21,740 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-01 05:31:21,750 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:31:22,098 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-01 05:31:22,099 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:31:22,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-01 05:31:22,471 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:31:22,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [481167745] [2024-11-01 05:31:22,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [481167745] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 05:31:22,472 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 05:31:22,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 11 [2024-11-01 05:31:22,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126872169] [2024-11-01 05:31:22,474 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 05:31:22,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-01 05:31:22,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:31:22,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-01 05:31:22,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-01 05:31:22,492 INFO L87 Difference]: Start difference. First operand has 18 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 14 states have internal predecessors, (17), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 11 states have internal predecessors, (20), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-01 05:31:22,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:31:22,653 INFO L93 Difference]: Finished difference Result 38 states and 53 transitions. [2024-11-01 05:31:22,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-01 05:31:22,655 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 11 states have internal predecessors, (20), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) Word has length 17 [2024-11-01 05:31:22,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:31:22,660 INFO L225 Difference]: With dead ends: 38 [2024-11-01 05:31:22,660 INFO L226 Difference]: Without dead ends: 22 [2024-11-01 05:31:22,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-01 05:31:22,664 INFO L432 NwaCegarLoop]: 8 mSDtfsCounter, 7 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 35 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-01 05:31:22,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 35 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-01 05:31:22,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2024-11-01 05:31:22,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 21. [2024-11-01 05:31:22,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 15 states have (on average 1.0666666666666667) internal successors, (16), 15 states have internal predecessors, (16), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-01 05:31:22,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2024-11-01 05:31:22,695 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 17 [2024-11-01 05:31:22,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:31:22,696 INFO L471 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2024-11-01 05:31:22,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 9 states have (on average 2.2222222222222223) internal successors, (20), 11 states have internal predecessors, (20), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 2 states have call predecessors, (4), 4 states have call successors, (4) [2024-11-01 05:31:22,697 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2024-11-01 05:31:22,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-01 05:31:22,698 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:31:22,698 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-01 05:31:22,714 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-01 05:31:22,899 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 [2024-11-01 05:31:22,899 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:31:22,900 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:31:22,900 INFO L85 PathProgramCache]: Analyzing trace with hash 91156387, now seen corresponding path program 1 times [2024-11-01 05:31:22,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:31:22,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438447099] [2024-11-01 05:31:22,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:31:22,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:31:22,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:31:22,903 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) [2024-11-01 05:31:22,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-01 05:31:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:31:23,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-01 05:31:23,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:31:23,436 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-01 05:31:23,436 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:31:23,856 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-01 05:31:23,856 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:31:23,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438447099] [2024-11-01 05:31:23,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [438447099] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 05:31:23,856 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 05:31:23,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-11-01 05:31:23,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230345670] [2024-11-01 05:31:23,857 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 05:31:23,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-01 05:31:23,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:31:23,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-01 05:31:23,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-11-01 05:31:23,859 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-01 05:31:24,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:31:24,495 INFO L93 Difference]: Finished difference Result 45 states and 56 transitions. [2024-11-01 05:31:24,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-01 05:31:24,496 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 32 [2024-11-01 05:31:24,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:31:24,497 INFO L225 Difference]: With dead ends: 45 [2024-11-01 05:31:24,497 INFO L226 Difference]: Without dead ends: 43 [2024-11-01 05:31:24,497 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=132, Unknown=0, NotChecked=0, Total=210 [2024-11-01 05:31:24,498 INFO L432 NwaCegarLoop]: 11 mSDtfsCounter, 10 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-01 05:31:24,499 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 46 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-01 05:31:24,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-01 05:31:24,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 42. [2024-11-01 05:31:24,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 30 states have (on average 1.0333333333333334) internal successors, (31), 30 states have internal predecessors, (31), 10 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-01 05:31:24,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2024-11-01 05:31:24,507 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 32 [2024-11-01 05:31:24,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:31:24,507 INFO L471 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2024-11-01 05:31:24,508 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.5) internal successors, (25), 10 states have internal predecessors, (25), 4 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-01 05:31:24,508 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2024-11-01 05:31:24,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-01 05:31:24,509 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:31:24,509 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1] [2024-11-01 05:31:24,526 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-01 05:31:24,710 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 [2024-11-01 05:31:24,710 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:31:24,711 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:31:24,711 INFO L85 PathProgramCache]: Analyzing trace with hash 257648895, now seen corresponding path program 2 times [2024-11-01 05:31:24,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:31:24,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [78566343] [2024-11-01 05:31:24,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:31:24,712 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:31:24,712 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:31:24,717 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) [2024-11-01 05:31:24,718 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-01 05:31:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:31:25,232 INFO L255 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-11-01 05:31:25,242 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:31:25,893 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-01 05:31:25,893 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:31:26,955 INFO L134 CoverageAnalysis]: Checked inductivity of 246 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-01 05:31:26,955 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:31:26,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [78566343] [2024-11-01 05:31:26,956 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [78566343] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-01 05:31:26,956 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-01 05:31:26,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2024-11-01 05:31:26,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511017320] [2024-11-01 05:31:26,956 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-01 05:31:26,957 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-01 05:31:26,957 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-01 05:31:26,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-01 05:31:26,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=181, Unknown=0, NotChecked=0, Total=240 [2024-11-01 05:31:26,958 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-01 05:31:27,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-01 05:31:27,885 INFO L93 Difference]: Finished difference Result 59 states and 73 transitions. [2024-11-01 05:31:27,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-01 05:31:27,886 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) Word has length 77 [2024-11-01 05:31:27,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-01 05:31:27,887 INFO L225 Difference]: With dead ends: 59 [2024-11-01 05:31:27,888 INFO L226 Difference]: Without dead ends: 57 [2024-11-01 05:31:27,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=116, Invalid=346, Unknown=0, NotChecked=0, Total=462 [2024-11-01 05:31:27,889 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 6 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-01 05:31:27,889 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 208 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-01 05:31:27,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2024-11-01 05:31:27,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 56. [2024-11-01 05:31:27,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 40 states have (on average 1.025) internal successors, (41), 40 states have internal predecessors, (41), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-11-01 05:31:27,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2024-11-01 05:31:27,902 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 77 [2024-11-01 05:31:27,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-01 05:31:27,902 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2024-11-01 05:31:27,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.4375) internal successors, (55), 16 states have internal predecessors, (55), 10 states have call successors, (20), 1 states have call predecessors, (20), 1 states have return successors, (20), 10 states have call predecessors, (20), 10 states have call successors, (20) [2024-11-01 05:31:27,902 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2024-11-01 05:31:27,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-01 05:31:27,905 INFO L207 NwaCegarLoop]: Found error trace [2024-11-01 05:31:27,905 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 7, 7, 7, 7, 7, 7, 7, 6, 6, 1, 1, 1, 1] [2024-11-01 05:31:27,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-01 05:31:28,109 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 [2024-11-01 05:31:28,110 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-01 05:31:28,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-01 05:31:28,110 INFO L85 PathProgramCache]: Analyzing trace with hash -761811841, now seen corresponding path program 3 times [2024-11-01 05:31:28,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-01 05:31:28,111 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045834739] [2024-11-01 05:31:28,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-01 05:31:28,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:31:28,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-01 05:31:28,115 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-01 05:31:28,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-01 05:31:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-01 05:31:29,307 INFO L255 TraceCheckSpWp]: Trace formula consists of 1264 conjuncts, 230 conjuncts are in the unsatisfiable core [2024-11-01 05:31:29,339 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-01 05:31:47,756 INFO L134 CoverageAnalysis]: Checked inductivity of 505 backedges. 75 proven. 201 refuted. 0 times theorem prover too weak. 229 trivial. 0 not checked. [2024-11-01 05:31:47,756 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-01 05:31:52,927 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse15 ((_ zero_extend 16) |c_ULTIMATE.start_main_~mask_SORT_11~0#1|)) (.cse16 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_12~0#1|)) (.cse17 (bvshl ((_ zero_extend 16) ((_ zero_extend 8) |c_ULTIMATE.start_main_~var_13~0#1|)) (_ bv8 32))) (.cse18 (bvneg ((_ zero_extend 16) |c_ULTIMATE.start_main_~state_17~0#1|)))) (let ((.cse13 (bvand (bvor (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvashr ((_ zero_extend 16) ((_ extract 15 0) (bvand .cse15 ((_ zero_extend 16) ((_ extract 15 0) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_13~0#1|))) .cse16))) .cse17))) .cse18)))))) (_ bv15 32)))) (_ bv31 32)) |c_ULTIMATE.start_main_~var_10~0#1|) |c_ULTIMATE.start_main_~mask_SORT_20~0#1|)) (.cse6 (= (_ bv0 8) |c_ULTIMATE.start_main_~input_3~0#1|)) (.cse14 (bvand |c_ULTIMATE.start_main_~mask_SORT_20~0#1| (bvor |c_ULTIMATE.start_main_~var_10~0#1| (bvshl ((_ zero_extend 24) ((_ extract 7 0) (bvashr ((_ zero_extend 16) ((_ extract 15 0) (bvand .cse15 ((_ zero_extend 16) ((_ extract 15 0) (bvadd ((_ zero_extend 16) ((_ extract 15 0) (bvor ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse16 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_14~0#1|)))))) .cse17))) .cse18)))))) (_ bv15 32)))) (_ bv31 32)))))) (let ((.cse10 ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_73~0#1|)) (.cse11 ((_ zero_extend 16) |c_ULTIMATE.start_main_~state_76~0#1|)) (.cse0 (forall ((|v_ULTIMATE.start_main_~var_65~0#1_29| (_ BitVec 32))) (not (bvule .cse14 (bvand |v_ULTIMATE.start_main_~var_65~0#1_29| |c_ULTIMATE.start_main_~mask_SORT_9~0#1|))))) (.cse5 (forall ((|v_ULTIMATE.start_main_~var_65~0#1_29| (_ BitVec 32))) (bvule .cse14 (bvand |v_ULTIMATE.start_main_~var_65~0#1_29| |c_ULTIMATE.start_main_~mask_SORT_9~0#1|)))) (.cse9 (not .cse6)) (.cse8 (forall ((|v_ULTIMATE.start_main_~var_65~0#1_29| (_ BitVec 32))) (bvule .cse13 (bvand |v_ULTIMATE.start_main_~var_65~0#1_29| |c_ULTIMATE.start_main_~mask_SORT_9~0#1|)))) (.cse7 (forall ((|v_ULTIMATE.start_main_~var_65~0#1_29| (_ BitVec 32))) (not (bvule .cse13 (bvand |v_ULTIMATE.start_main_~var_65~0#1_29| |c_ULTIMATE.start_main_~mask_SORT_9~0#1|))))) (.cse1 ((_ zero_extend 24) |c_ULTIMATE.start_main_~mask_SORT_1~0#1|))) (and (or (let ((.cse3 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_8~0#1|)))) (.cse4 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |c_ULTIMATE.start_main_~var_7~0#1|))))) (and (or (let ((.cse2 ((_ zero_extend 24) |c_ULTIMATE.start_main_~input_3~0#1|))) (and (or .cse0 (forall ((|v_ULTIMATE.start_main_~var_82_arg_1~0#1_32| (_ 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) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse2 .cse3))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_82_arg_1~0#1_32|))))))))) (or (forall ((|v_ULTIMATE.start_main_~var_82_arg_1~0#1_32| (_ 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) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvxor .cse2 .cse4))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_82_arg_1~0#1_32|)))))))) .cse5))) .cse6) (or (and (or .cse7 (forall ((|v_ULTIMATE.start_main_~var_82_arg_1~0#1_32| (_ BitVec 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) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvxor (_ bv0 32) .cse3))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_82_arg_1~0#1_32|)))))) (_ bv0 8)))) (or .cse8 (forall ((|v_ULTIMATE.start_main_~var_82_arg_1~0#1_32| (_ 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) ((_ extract 7 0) (bvnot ((_ zero_extend 24) ((_ extract 7 0) (bvxor (_ bv0 32) .cse4))))))))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_82_arg_1~0#1_32|)))))))))) .cse9))) (forall ((|ULTIMATE.start_main_~mask_SORT_72~0#1| (_ BitVec 8))) (not (bvslt ((_ zero_extend 16) ((_ zero_extend 8) ((_ extract 7 0) (bvand .cse10 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_72~0#1|))))) .cse11)))) (or (forall ((|ULTIMATE.start_main_~mask_SORT_72~0#1| (_ BitVec 8))) (bvslt ((_ zero_extend 16) ((_ zero_extend 8) ((_ extract 7 0) (bvand .cse10 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_72~0#1|))))) .cse11)) (let ((.cse12 (forall ((|v_ULTIMATE.start_main_~var_79_arg_2~0#1_32| (_ BitVec 8)) (|v_ULTIMATE.start_main_~var_82_arg_1~0#1_32| (_ 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_79_arg_2~0#1_32|)))))) ((_ zero_extend 24) |v_ULTIMATE.start_main_~var_82_arg_1~0#1_32|)))))))))) (and (or (and (or .cse0 .cse12) (or .cse5 .cse12)) .cse6) (or .cse9 (and (or .cse8 .cse12) (or .cse7 .cse12)))))))))) is different from false [2024-11-01 05:32:13,062 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") [2024-11-01 05:32:13,063 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-01 05:32:13,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045834739] [2024-11-01 05:32:13,063 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-01 05:32:13,068 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 [2024-11-01 05:32:13,104 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-01 05:32:13,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-01 05:32:13,265 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseSuccess(Executor.java:277) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:140) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.pop(ManagedScript.java:138) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:86) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java: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) ... 45 more [2024-11-01 05:32:13,268 INFO L158 Benchmark]: Toolchain (without parser) took 53011.31ms. Allocated memory was 185.6MB in the beginning and 912.3MB in the end (delta: 726.7MB). Free memory was 159.8MB in the beginning and 849.4MB in the end (delta: -689.7MB). Peak memory consumption was 38.4MB. Max. memory is 8.0GB. [2024-11-01 05:32:13,268 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 185.6MB. Free memory is still 160.9MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 05:32:13,269 INFO L158 Benchmark]: CACSL2BoogieTranslator took 438.71ms. Allocated memory is still 185.6MB. Free memory was 159.8MB in the beginning and 134.1MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. [2024-11-01 05:32:13,269 INFO L158 Benchmark]: Boogie Procedure Inliner took 61.52ms. Allocated memory is still 185.6MB. Free memory was 134.1MB in the beginning and 130.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2024-11-01 05:32:13,269 INFO L158 Benchmark]: Boogie Preprocessor took 95.67ms. Allocated memory is still 185.6MB. Free memory was 130.0MB in the beginning and 125.2MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2024-11-01 05:32:13,269 INFO L158 Benchmark]: RCFGBuilder took 587.41ms. Allocated memory is still 185.6MB. Free memory was 125.2MB in the beginning and 121.7MB in the end (delta: 3.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2024-11-01 05:32:13,270 INFO L158 Benchmark]: TraceAbstraction took 51819.45ms. Allocated memory was 185.6MB in the beginning and 912.3MB in the end (delta: 726.7MB). Free memory was 121.2MB in the beginning and 849.4MB in the end (delta: -728.3MB). There was no memory consumed. Max. memory is 8.0GB. [2024-11-01 05:32:13,271 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 185.6MB. Free memory is still 160.9MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 438.71ms. Allocated memory is still 185.6MB. Free memory was 159.8MB in the beginning and 134.1MB in the end (delta: 25.7MB). Peak memory consumption was 26.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 61.52ms. Allocated memory is still 185.6MB. Free memory was 134.1MB in the beginning and 130.0MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 95.67ms. Allocated memory is still 185.6MB. Free memory was 130.0MB in the beginning and 125.2MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 587.41ms. Allocated memory is still 185.6MB. Free memory was 125.2MB in the beginning and 121.7MB in the end (delta: 3.5MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 51819.45ms. Allocated memory was 185.6MB in the beginning and 912.3MB in the end (delta: 726.7MB). Free memory was 121.2MB in the beginning and 849.4MB in the end (delta: -728.3MB). 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...