/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 'mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3' -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d128_e0.c -------------------------------------------------------------------------------- This is Ultimate 0.2.5-dev-b75d321-m [2024-11-05 09:17:54,441 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-05 09:17:54,522 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-64bit-Automizer_Bitvector.epf [2024-11-05 09:17:54,528 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-05 09:17:54,528 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-05 09:17:54,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-05 09:17:54,557 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-05 09:17:54,557 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-05 09:17:54,558 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-05 09:17:54,559 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-05 09:17:54,560 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-05 09:17:54,560 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-05 09:17:54,560 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-05 09:17:54,561 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-05 09:17:54,561 INFO L153 SettingsManager]: * Use SBE=true [2024-11-05 09:17:54,561 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-05 09:17:54,561 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-05 09:17:54,562 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-05 09:17:54,562 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-05 09:17:54,565 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-05 09:17:54,565 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-05 09:17:54,566 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-05 09:17:54,566 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-05 09:17:54,566 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-05 09:17:54,566 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-05 09:17:54,566 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-05 09:17:54,567 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-05 09:17:54,567 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-05 09:17:54,567 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-05 09:17:54,567 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-05 09:17:54,567 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-05 09:17:54,567 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 09:17:54,568 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-05 09:17:54,568 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-05 09:17:54,568 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-05 09:17:54,568 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-05 09:17:54,568 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-05 09:17:54,569 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-05 09:17:54,569 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-05 09:17:54,570 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-05 09:17:54,570 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-05 09:17:54,571 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Allow undefined functions -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Command for external solver -> mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 09:17:54,790 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-05 09:17:54,817 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-05 09:17:54,822 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-05 09:17:54,823 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-05 09:17:54,823 INFO L274 PluginConnector]: CDTParser initialized [2024-11-05 09:17:54,824 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d128_e0.c [2024-11-05 09:17:56,195 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-05 09:17:56,560 INFO L384 CDTParser]: Found 1 translation units. [2024-11-05 09:17:56,561 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d128_e0.c [2024-11-05 09:17:56,592 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ffa82abe/a18d14a71f3e4ce8b03e5390dbb834f1/FLAG632fff799 [2024-11-05 09:17:56,774 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5ffa82abe/a18d14a71f3e4ce8b03e5390dbb834f1 [2024-11-05 09:17:56,776 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-05 09:17:56,777 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-11-05 09:17:56,778 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-05 09:17:56,778 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-05 09:17:56,783 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-05 09:17:56,783 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:17:56" (1/1) ... [2024-11-05 09:17:56,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55b1ae05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:56, skipping insertion in model container [2024-11-05 09:17:56,784 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 09:17:56" (1/1) ... [2024-11-05 09:17:56,884 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-05 09:17:57,120 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d128_e0.c[1281,1294] [2024-11-05 09:17:57,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 09:17:57,630 INFO L200 MainTranslator]: Completed pre-run [2024-11-05 09:17:57,642 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardware-verification-bv/btor2c-lazyMod.circular_pointer_top_w16_d128_e0.c[1281,1294] [2024-11-05 09:17:57,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-05 09:17:57,927 INFO L204 MainTranslator]: Completed translation [2024-11-05 09:17:57,928 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57 WrapperNode [2024-11-05 09:17:57,929 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-05 09:17:57,930 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-05 09:17:57,930 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-05 09:17:57,931 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-05 09:17:57,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57" (1/1) ... [2024-11-05 09:17:58,007 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57" (1/1) ... [2024-11-05 09:17:58,149 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 4727 [2024-11-05 09:17:58,149 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-05 09:17:58,150 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-05 09:17:58,150 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-05 09:17:58,150 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-05 09:17:58,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57" (1/1) ... [2024-11-05 09:17:58,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57" (1/1) ... [2024-11-05 09:17:58,195 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57" (1/1) ... [2024-11-05 09:17:58,261 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]. [2024-11-05 09:17:58,262 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57" (1/1) ... [2024-11-05 09:17:58,262 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57" (1/1) ... [2024-11-05 09:17:58,389 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57" (1/1) ... [2024-11-05 09:17:58,409 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57" (1/1) ... [2024-11-05 09:17:58,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57" (1/1) ... [2024-11-05 09:17:58,444 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57" (1/1) ... [2024-11-05 09:17:58,473 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-05 09:17:58,475 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-05 09:17:58,475 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-05 09:17:58,475 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-05 09:17:58,476 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57" (1/1) ... [2024-11-05 09:17:58,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-05 09:17:58,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-05 09:17:58,506 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) [2024-11-05 09:17:58,508 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 [2024-11-05 09:17:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-05 09:17:58,534 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-05 09:17:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-05 09:17:58,535 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-05 09:17:58,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-05 09:17:58,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-05 09:17:59,181 INFO L238 CfgBuilder]: Building ICFG [2024-11-05 09:17:59,183 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-05 09:18:03,745 INFO L? ?]: Removed 1282 outVars from TransFormulas that were not future-live. [2024-11-05 09:18:03,745 INFO L287 CfgBuilder]: Performing block encoding [2024-11-05 09:18:03,755 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-05 09:18:03,755 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-05 09:18:03,756 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:18:03 BoogieIcfgContainer [2024-11-05 09:18:03,756 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-05 09:18:03,758 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-05 09:18:03,758 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-05 09:18:03,760 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-05 09:18:03,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 09:17:56" (1/3) ... [2024-11-05 09:18:03,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4037978c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:18:03, skipping insertion in model container [2024-11-05 09:18:03,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 09:17:57" (2/3) ... [2024-11-05 09:18:03,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4037978c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 09:18:03, skipping insertion in model container [2024-11-05 09:18:03,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 09:18:03" (3/3) ... [2024-11-05 09:18:03,764 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.circular_pointer_top_w16_d128_e0.c [2024-11-05 09:18:03,782 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-05 09:18:03,782 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-05 09:18:03,840 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-05 09:18:03,845 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;@3f876316, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-05 09:18:03,846 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-05 09:18:03,849 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-05 09:18:03,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-05 09:18:03,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 09:18:03,856 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 09:18:03,857 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 09:18:03,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 09:18:03,861 INFO L85 PathProgramCache]: Analyzing trace with hash 1944675641, now seen corresponding path program 1 times [2024-11-05 09:18:03,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 09:18:03,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1037863952] [2024-11-05 09:18:03,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 09:18:03,872 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 09:18:03,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 09:18:03,875 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 09:18:03,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-05 09:18:05,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 09:18:05,302 INFO L255 TraceCheckSpWp]: Trace formula consists of 1590 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-05 09:18:05,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 09:18:05,341 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-05 09:18:05,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 09:18:05,367 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-05 09:18:05,368 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 09:18:05,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1037863952] [2024-11-05 09:18:05,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1037863952] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 09:18:05,369 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 09:18:05,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2024-11-05 09:18:05,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252902607] [2024-11-05 09:18:05,372 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 09:18:05,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-05 09:18:05,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 09:18:05,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-05 09:18:05,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 09:18:05,398 INFO L87 Difference]: Start difference. First operand has 20 states, 14 states have (on average 1.2857142857142858) internal successors, (18), 15 states have internal predecessors, (18), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-05 09:18:05,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 09:18:05,415 INFO L93 Difference]: Finished difference Result 35 states and 47 transitions. [2024-11-05 09:18:05,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-05 09:18:05,417 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 23 [2024-11-05 09:18:05,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 09:18:05,423 INFO L225 Difference]: With dead ends: 35 [2024-11-05 09:18:05,423 INFO L226 Difference]: Without dead ends: 17 [2024-11-05 09:18:05,426 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-05 09:18:05,432 INFO L432 NwaCegarLoop]: 19 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-05 09:18:05,433 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-05 09:18:05,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2024-11-05 09:18:05,463 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2024-11-05 09:18:05,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 12 states have internal predecessors, (13), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-05 09:18:05,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2024-11-05 09:18:05,467 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 23 [2024-11-05 09:18:05,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 09:18:05,467 INFO L471 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2024-11-05 09:18:05,468 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.5) internal successors, (13), 2 states have internal predecessors, (13), 1 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-05 09:18:05,468 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2024-11-05 09:18:05,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2024-11-05 09:18:05,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 09:18:05,469 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-05 09:18:05,491 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-05 09:18:05,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 09:18:05,670 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 09:18:05,671 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 09:18:05,671 INFO L85 PathProgramCache]: Analyzing trace with hash 265954675, now seen corresponding path program 1 times [2024-11-05 09:18:05,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 09:18:05,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1361509171] [2024-11-05 09:18:05,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 09:18:05,672 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 09:18:05,672 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 09:18:05,675 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 09:18:05,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-05 09:18:06,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 09:18:06,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 1590 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-05 09:18:06,978 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 09:18:07,116 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-05 09:18:07,116 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 09:18:07,398 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-05 09:18:07,398 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 09:18:07,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1361509171] [2024-11-05 09:18:07,399 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1361509171] provided 2 perfect and 0 imperfect interpolant sequences [2024-11-05 09:18:07,399 INFO L185 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2024-11-05 09:18:07,399 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2024-11-05 09:18:07,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848448213] [2024-11-05 09:18:07,399 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2024-11-05 09:18:07,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-05 09:18:07,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 09:18:07,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-05 09:18:07,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 09:18:07,403 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-05 09:18:08,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 09:18:08,243 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2024-11-05 09:18:08,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-05 09:18:08,244 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 23 [2024-11-05 09:18:08,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 09:18:08,244 INFO L225 Difference]: With dead ends: 27 [2024-11-05 09:18:08,245 INFO L226 Difference]: Without dead ends: 25 [2024-11-05 09:18:08,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-05 09:18:08,246 INFO L432 NwaCegarLoop]: 14 mSDtfsCounter, 0 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-05 09:18:08,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-05 09:18:08,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-05 09:18:08,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-05 09:18:08,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-05 09:18:08,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2024-11-05 09:18:08,253 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 23 [2024-11-05 09:18:08,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 09:18:08,254 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-11-05 09:18:08,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 6 states have internal predecessors, (17), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-05 09:18:08,254 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-11-05 09:18:08,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-05 09:18:08,255 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 09:18:08,255 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-05 09:18:08,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-05 09:18:08,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 09:18:08,456 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 09:18:08,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 09:18:08,457 INFO L85 PathProgramCache]: Analyzing trace with hash 416519459, now seen corresponding path program 1 times [2024-11-05 09:18:08,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 09:18:08,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1426382808] [2024-11-05 09:18:08,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 09:18:08,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 09:18:08,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 09:18:08,460 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 09:18:08,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-05 09:18:16,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 09:18:16,731 INFO L255 TraceCheckSpWp]: Trace formula consists of 3014 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-05 09:18:16,754 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 09:18:17,304 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-05 09:18:17,304 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 09:18:21,008 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2024-11-05 09:18:21,009 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 09:18:21,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1426382808] [2024-11-05 09:18:21,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModulePreferences [1426382808] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-05 09:18:21,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-05 09:18:21,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2024-11-05 09:18:21,010 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152489612] [2024-11-05 09:18:21,010 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-05 09:18:21,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-05 09:18:21,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2024-11-05 09:18:21,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-05 09:18:21,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-05 09:18:21,013 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-05 09:18:22,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-05 09:18:22,707 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2024-11-05 09:18:22,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-05 09:18:22,708 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) Word has length 44 [2024-11-05 09:18:22,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-05 09:18:22,709 INFO L225 Difference]: With dead ends: 36 [2024-11-05 09:18:22,709 INFO L226 Difference]: Without dead ends: 34 [2024-11-05 09:18:22,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=67, Invalid=275, Unknown=0, NotChecked=0, Total=342 [2024-11-05 09:18:22,711 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 10 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-05 09:18:22,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 65 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-05 09:18:22,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2024-11-05 09:18:22,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2024-11-05 09:18:22,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 23 states have (on average 1.0434782608695652) internal successors, (24), 23 states have internal predecessors, (24), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-11-05 09:18:22,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 42 transitions. [2024-11-05 09:18:22,719 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 42 transitions. Word has length 44 [2024-11-05 09:18:22,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-05 09:18:22,719 INFO L471 AbstractCegarLoop]: Abstraction has 34 states and 42 transitions. [2024-11-05 09:18:22,719 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 15 states have internal predecessors, (34), 6 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (12), 4 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-05 09:18:22,719 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 42 transitions. [2024-11-05 09:18:22,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-05 09:18:22,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-05 09:18:22,721 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1] [2024-11-05 09:18:22,752 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-05 09:18:22,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 09:18:22,926 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-05 09:18:22,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-05 09:18:22,927 INFO L85 PathProgramCache]: Analyzing trace with hash 223728499, now seen corresponding path program 2 times [2024-11-05 09:18:22,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2024-11-05 09:18:22,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964459160] [2024-11-05 09:18:22,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-05 09:18:22,927 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 09:18:22,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-05 09:18:22,929 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-05 09:18:22,930 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-05 09:18:43,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-05 09:18:43,282 INFO L255 TraceCheckSpWp]: Trace formula consists of 4438 conjuncts, 96 conjuncts are in the unsatisfiable core [2024-11-05 09:18:43,410 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-05 09:19:08,895 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 15 proven. 64 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-05 09:19:08,895 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-05 09:19:18,828 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 [2024-11-05 09:19:18,828 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") [2024-11-05 09:19:18,829 INFO L136 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found an infeasible trace [2024-11-05 09:19:18,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964459160] [2024-11-05 09:19:18,830 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2024-11-05 09:19:18,884 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-05 09:19:19,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-05 09:19:19,031 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:842) 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 [2024-11-05 09:19:19,035 INFO L158 Benchmark]: Toolchain (without parser) took 82258.36ms. Allocated memory was 317.7MB in the beginning and 949.0MB in the end (delta: 631.2MB). Free memory was 271.6MB in the beginning and 427.6MB in the end (delta: -156.0MB). Peak memory consumption was 477.1MB. Max. memory is 8.0GB. [2024-11-05 09:19:19,035 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 137.8MB. There was no memory consumed. Max. memory is 8.0GB. [2024-11-05 09:19:19,036 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1151.92ms. Allocated memory is still 317.7MB. Free memory was 271.0MB in the beginning and 254.7MB in the end (delta: 16.4MB). Peak memory consumption was 122.2MB. Max. memory is 8.0GB. [2024-11-05 09:19:19,036 INFO L158 Benchmark]: Boogie Procedure Inliner took 219.12ms. Allocated memory is still 317.7MB. Free memory was 254.7MB in the beginning and 221.1MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2024-11-05 09:19:19,037 INFO L158 Benchmark]: Boogie Preprocessor took 323.16ms. Allocated memory was 317.7MB in the beginning and 494.9MB in the end (delta: 177.2MB). Free memory was 221.1MB in the beginning and 407.7MB in the end (delta: -186.5MB). Peak memory consumption was 39.9MB. Max. memory is 8.0GB. [2024-11-05 09:19:19,037 INFO L158 Benchmark]: RCFGBuilder took 5281.12ms. Allocated memory was 494.9MB in the beginning and 757.1MB in the end (delta: 262.1MB). Free memory was 407.7MB in the beginning and 414.7MB in the end (delta: -7.0MB). Peak memory consumption was 292.9MB. Max. memory is 8.0GB. [2024-11-05 09:19:19,038 INFO L158 Benchmark]: TraceAbstraction took 75276.98ms. Allocated memory was 757.1MB in the beginning and 949.0MB in the end (delta: 191.9MB). Free memory was 414.2MB in the beginning and 427.6MB in the end (delta: -13.4MB). Peak memory consumption was 178.8MB. Max. memory is 8.0GB. [2024-11-05 09:19:19,039 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 190.8MB. Free memory is still 137.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1151.92ms. Allocated memory is still 317.7MB. Free memory was 271.0MB in the beginning and 254.7MB in the end (delta: 16.4MB). Peak memory consumption was 122.2MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 219.12ms. Allocated memory is still 317.7MB. Free memory was 254.7MB in the beginning and 221.1MB in the end (delta: 33.5MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * Boogie Preprocessor took 323.16ms. Allocated memory was 317.7MB in the beginning and 494.9MB in the end (delta: 177.2MB). Free memory was 221.1MB in the beginning and 407.7MB in the end (delta: -186.5MB). Peak memory consumption was 39.9MB. Max. memory is 8.0GB. * RCFGBuilder took 5281.12ms. Allocated memory was 494.9MB in the beginning and 757.1MB in the end (delta: 262.1MB). Free memory was 407.7MB in the beginning and 414.7MB in the end (delta: -7.0MB). Peak memory consumption was 292.9MB. Max. memory is 8.0GB. * TraceAbstraction took 75276.98ms. Allocated memory was 757.1MB in the beginning and 949.0MB in the end (delta: 191.9MB). Free memory was 414.2MB in the beginning and 427.6MB in the end (delta: -13.4MB). Peak memory consumption was 178.8MB. 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...