/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/eca-rers2012/Problem17_label30.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-22 15:26:35,616 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-22 15:26:35,663 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-22 15:26:35,666 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-22 15:26:35,666 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-22 15:26:35,679 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-22 15:26:35,679 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-22 15:26:35,680 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-22 15:26:35,680 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-22 15:26:35,680 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-22 15:26:35,680 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-22 15:26:35,681 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-22 15:26:35,681 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-22 15:26:35,681 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-22 15:26:35,682 INFO L153 SettingsManager]: * Use SBE=true [2023-12-22 15:26:35,682 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-22 15:26:35,682 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-22 15:26:35,682 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-22 15:26:35,683 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-22 15:26:35,683 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-22 15:26:35,683 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-22 15:26:35,683 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-22 15:26:35,684 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-22 15:26:35,684 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-22 15:26:35,684 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-22 15:26:35,684 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-22 15:26:35,685 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-22 15:26:35,685 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-22 15:26:35,685 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-22 15:26:35,685 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-22 15:26:35,686 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-22 15:26:35,686 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-22 15:26:35,686 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-22 15:26:35,686 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-22 15:26:35,686 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 15:26:35,687 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-22 15:26:35,687 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-22 15:26:35,687 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-22 15:26:35,687 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-22 15:26:35,687 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-22 15:26:35,688 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-22 15:26:35,693 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-22 15:26:35,693 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-22 15:26:35,694 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-22 15:26:35,694 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-22 15:26:35,694 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-22 15:26:35,694 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-22 15:26:35,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-22 15:26:35,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-22 15:26:35,883 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-22 15:26:35,884 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-22 15:26:35,885 INFO L274 PluginConnector]: CDTParser initialized [2023-12-22 15:26:35,886 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem17_label30.c [2023-12-22 15:26:36,979 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-22 15:26:37,310 INFO L384 CDTParser]: Found 1 translation units. [2023-12-22 15:26:37,311 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label30.c [2023-12-22 15:26:37,332 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb684e97a/09f13380e60d42fc96e726b4b8bc1f62/FLAG4bf1dc258 [2023-12-22 15:26:37,346 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eb684e97a/09f13380e60d42fc96e726b4b8bc1f62 [2023-12-22 15:26:37,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-22 15:26:37,350 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-22 15:26:37,351 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-22 15:26:37,351 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-22 15:26:37,355 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-22 15:26:37,355 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:26:37" (1/1) ... [2023-12-22 15:26:37,356 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@565c2437 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:37, skipping insertion in model container [2023-12-22 15:26:37,356 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:26:37" (1/1) ... [2023-12-22 15:26:37,424 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-22 15:26:37,609 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label30.c[3774,3787] [2023-12-22 15:26:38,117 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 15:26:38,127 INFO L202 MainTranslator]: Completed pre-run [2023-12-22 15:26:38,147 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem17_label30.c[3774,3787] [2023-12-22 15:26:38,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-22 15:26:38,372 INFO L206 MainTranslator]: Completed translation [2023-12-22 15:26:38,374 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38 WrapperNode [2023-12-22 15:26:38,374 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-22 15:26:38,375 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-22 15:26:38,375 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-22 15:26:38,375 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-22 15:26:38,380 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38" (1/1) ... [2023-12-22 15:26:38,419 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38" (1/1) ... [2023-12-22 15:26:38,543 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2610 [2023-12-22 15:26:38,544 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-22 15:26:38,544 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-22 15:26:38,544 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-22 15:26:38,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-22 15:26:38,552 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38" (1/1) ... [2023-12-22 15:26:38,552 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38" (1/1) ... [2023-12-22 15:26:38,572 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38" (1/1) ... [2023-12-22 15:26:38,612 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]. [2023-12-22 15:26:38,612 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38" (1/1) ... [2023-12-22 15:26:38,612 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38" (1/1) ... [2023-12-22 15:26:38,653 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38" (1/1) ... [2023-12-22 15:26:38,663 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38" (1/1) ... [2023-12-22 15:26:38,680 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38" (1/1) ... [2023-12-22 15:26:38,692 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38" (1/1) ... [2023-12-22 15:26:38,709 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-22 15:26:38,710 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-22 15:26:38,710 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-22 15:26:38,710 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-22 15:26:38,711 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38" (1/1) ... [2023-12-22 15:26:38,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-22 15:26:38,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-22 15:26:38,733 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) [2023-12-22 15:26:38,741 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 [2023-12-22 15:26:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-22 15:26:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-22 15:26:38,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-22 15:26:38,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-22 15:26:38,812 INFO L241 CfgBuilder]: Building ICFG [2023-12-22 15:26:38,813 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-22 15:27:13,491 INFO L282 CfgBuilder]: Performing block encoding [2023-12-22 15:27:13,536 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-22 15:27:13,536 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-22 15:27:13,537 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:27:13 BoogieIcfgContainer [2023-12-22 15:27:13,537 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-22 15:27:13,538 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-22 15:27:13,538 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-22 15:27:13,541 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-22 15:27:13,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:26:37" (1/3) ... [2023-12-22 15:27:13,541 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@929b32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:27:13, skipping insertion in model container [2023-12-22 15:27:13,541 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:38" (2/3) ... [2023-12-22 15:27:13,542 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@929b32f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:27:13, skipping insertion in model container [2023-12-22 15:27:13,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:27:13" (3/3) ... [2023-12-22 15:27:13,542 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label30.c [2023-12-22 15:27:13,559 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-22 15:27:13,559 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-22 15:27:13,611 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-22 15:27:13,615 INFO L357 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, mHoare=true, 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;@6c2dac48, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-22 15:27:13,616 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-22 15:27:13,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 15:27:13,627 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-22 15:27:13,627 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 15:27:13,628 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 15:27:13,629 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 15:27:13,632 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 15:27:13,632 INFO L85 PathProgramCache]: Analyzing trace with hash -435000657, now seen corresponding path program 1 times [2023-12-22 15:27:13,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 15:27:13,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1048831676] [2023-12-22 15:27:13,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 15:27:13,641 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 [2023-12-22 15:27:13,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 15:27:13,643 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) [2023-12-22 15:27:13,653 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 [2023-12-22 15:27:13,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 15:27:13,757 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-22 15:27:13,760 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 15:27:13,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 15:27:13,775 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 15:27:13,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 15:27:13,776 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1048831676] [2023-12-22 15:27:13,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1048831676] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 15:27:13,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 15:27:13,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 15:27:13,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334442157] [2023-12-22 15:27:13,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 15:27:13,782 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-22 15:27:13,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 15:27:13,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-22 15:27:13,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 15:27:13,810 INFO L87 Difference]: Start difference. First operand has 528 states, 526 states have (on average 1.9011406844106464) internal successors, (1000), 527 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 15:27:13,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 15:27:13,905 INFO L93 Difference]: Finished difference Result 1055 states and 1999 transitions. [2023-12-22 15:27:13,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-22 15:27:13,909 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-12-22 15:27:13,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 15:27:13,919 INFO L225 Difference]: With dead ends: 1055 [2023-12-22 15:27:13,919 INFO L226 Difference]: Without dead ends: 526 [2023-12-22 15:27:13,925 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-22 15:27:13,929 INFO L413 NwaCegarLoop]: 935 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 935 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-22 15:27:13,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 935 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-22 15:27:13,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states. [2023-12-22 15:27:13,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 526. [2023-12-22 15:27:13,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 526 states, 525 states have (on average 1.7809523809523808) internal successors, (935), 525 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 15:27:13,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 526 states to 526 states and 935 transitions. [2023-12-22 15:27:13,976 INFO L78 Accepts]: Start accepts. Automaton has 526 states and 935 transitions. Word has length 23 [2023-12-22 15:27:13,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 15:27:13,976 INFO L495 AbstractCegarLoop]: Abstraction has 526 states and 935 transitions. [2023-12-22 15:27:13,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 11.5) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 15:27:13,977 INFO L276 IsEmpty]: Start isEmpty. Operand 526 states and 935 transitions. [2023-12-22 15:27:13,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2023-12-22 15:27:13,977 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 15:27:13,977 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 15:27:13,982 INFO L540 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)] Forceful destruction successful, exit code 0 [2023-12-22 15:27:14,180 WARN L477 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 [2023-12-22 15:27:14,180 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 15:27:14,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 15:27:14,181 INFO L85 PathProgramCache]: Analyzing trace with hash -51117638, now seen corresponding path program 1 times [2023-12-22 15:27:14,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 15:27:14,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1946430300] [2023-12-22 15:27:14,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 15:27:14,182 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 [2023-12-22 15:27:14,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 15:27:14,183 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) [2023-12-22 15:27:14,187 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 [2023-12-22 15:27:14,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 15:27:14,233 INFO L262 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 15:27:14,233 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 15:27:14,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 15:27:14,519 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 15:27:14,519 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 15:27:14,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1946430300] [2023-12-22 15:27:14,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1946430300] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 15:27:14,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 15:27:14,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 15:27:14,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47068359] [2023-12-22 15:27:14,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 15:27:14,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 15:27:14,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 15:27:14,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 15:27:14,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 15:27:14,521 INFO L87 Difference]: Start difference. First operand 526 states and 935 transitions. Second operand has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 15:28:01,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 15:28:01,505 INFO L93 Difference]: Finished difference Result 1499 states and 2699 transitions. [2023-12-22 15:28:01,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 15:28:01,508 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2023-12-22 15:28:01,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 15:28:01,513 INFO L225 Difference]: With dead ends: 1499 [2023-12-22 15:28:01,513 INFO L226 Difference]: Without dead ends: 974 [2023-12-22 15:28:01,514 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 15:28:01,514 INFO L413 NwaCegarLoop]: 300 mSDtfsCounter, 435 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1509 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 39.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 435 SdHoareTripleChecker+Valid, 362 SdHoareTripleChecker+Invalid, 1694 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 1509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 46.8s IncrementalHoareTripleChecker+Time [2023-12-22 15:28:01,515 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [435 Valid, 362 Invalid, 1694 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 1509 Invalid, 0 Unknown, 0 Unchecked, 46.8s Time] [2023-12-22 15:28:01,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 974 states. [2023-12-22 15:28:01,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 974 to 959. [2023-12-22 15:28:01,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 959 states, 958 states have (on average 1.616910229645094) internal successors, (1549), 958 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 15:28:01,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 959 states to 959 states and 1549 transitions. [2023-12-22 15:28:01,551 INFO L78 Accepts]: Start accepts. Automaton has 959 states and 1549 transitions. Word has length 23 [2023-12-22 15:28:01,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 15:28:01,551 INFO L495 AbstractCegarLoop]: Abstraction has 959 states and 1549 transitions. [2023-12-22 15:28:01,551 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 15:28:01,551 INFO L276 IsEmpty]: Start isEmpty. Operand 959 states and 1549 transitions. [2023-12-22 15:28:01,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2023-12-22 15:28:01,553 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 15:28:01,553 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 15:28:01,559 INFO L540 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)] Forceful destruction successful, exit code 0 [2023-12-22 15:28:01,755 WARN L477 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 [2023-12-22 15:28:01,755 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 15:28:01,756 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 15:28:01,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1435741255, now seen corresponding path program 1 times [2023-12-22 15:28:01,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 15:28:01,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663617553] [2023-12-22 15:28:01,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 15:28:01,757 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 [2023-12-22 15:28:01,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 15:28:01,760 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) [2023-12-22 15:28:01,762 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 [2023-12-22 15:28:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 15:28:01,883 INFO L262 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-22 15:28:01,885 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 15:28:02,686 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 15:28:02,687 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-22 15:28:02,687 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 15:28:02,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663617553] [2023-12-22 15:28:02,687 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663617553] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-22 15:28:02,687 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-22 15:28:02,687 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-22 15:28:02,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [222276098] [2023-12-22 15:28:02,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-22 15:28:02,688 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-22 15:28:02,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 15:28:02,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-22 15:28:02,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 15:28:02,688 INFO L87 Difference]: Start difference. First operand 959 states and 1549 transitions. Second operand has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 15:28:47,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-22 15:28:47,235 INFO L93 Difference]: Finished difference Result 2350 states and 3890 transitions. [2023-12-22 15:28:47,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-22 15:28:47,237 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 88 [2023-12-22 15:28:47,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-22 15:28:47,241 INFO L225 Difference]: With dead ends: 2350 [2023-12-22 15:28:47,241 INFO L226 Difference]: Without dead ends: 1392 [2023-12-22 15:28:47,243 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-22 15:28:47,246 INFO L413 NwaCegarLoop]: 513 mSDtfsCounter, 394 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1082 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 36.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 394 SdHoareTripleChecker+Valid, 588 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1082 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 44.4s IncrementalHoareTripleChecker+Time [2023-12-22 15:28:47,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [394 Valid, 588 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1082 Invalid, 0 Unknown, 0 Unchecked, 44.4s Time] [2023-12-22 15:28:47,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1392 states. [2023-12-22 15:28:47,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1392 to 1392. [2023-12-22 15:28:47,274 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1392 states, 1391 states have (on average 1.304097771387491) internal successors, (1814), 1391 states have internal predecessors, (1814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 15:28:47,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1392 states to 1392 states and 1814 transitions. [2023-12-22 15:28:47,277 INFO L78 Accepts]: Start accepts. Automaton has 1392 states and 1814 transitions. Word has length 88 [2023-12-22 15:28:47,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-22 15:28:47,277 INFO L495 AbstractCegarLoop]: Abstraction has 1392 states and 1814 transitions. [2023-12-22 15:28:47,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 29.333333333333332) internal successors, (88), 2 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 15:28:47,278 INFO L276 IsEmpty]: Start isEmpty. Operand 1392 states and 1814 transitions. [2023-12-22 15:28:47,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-12-22 15:28:47,285 INFO L187 NwaCegarLoop]: Found error trace [2023-12-22 15:28:47,285 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-22 15:28:47,299 INFO L540 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)] Forceful destruction successful, exit code 0 [2023-12-22 15:28:47,489 WARN L477 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 [2023-12-22 15:28:47,490 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-22 15:28:47,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-22 15:28:47,491 INFO L85 PathProgramCache]: Analyzing trace with hash 690494694, now seen corresponding path program 1 times [2023-12-22 15:28:47,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-22 15:28:47,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [454071952] [2023-12-22 15:28:47,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-22 15:28:47,492 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 [2023-12-22 15:28:47,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-22 15:28:47,493 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) [2023-12-22 15:28:47,497 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 [2023-12-22 15:28:47,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-22 15:28:47,585 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-22 15:28:47,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-22 15:28:48,677 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 15:28:48,678 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-22 15:28:55,012 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-22 15:28:55,013 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-22 15:28:55,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [454071952] [2023-12-22 15:28:55,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [454071952] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-22 15:28:55,013 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-22 15:28:55,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2023-12-22 15:28:55,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840173297] [2023-12-22 15:28:55,013 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-22 15:28:55,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-22 15:28:55,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-22 15:28:55,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-22 15:28:55,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2023-12-22 15:28:55,015 INFO L87 Difference]: Start difference. First operand 1392 states and 1814 transitions. Second operand has 6 states, 6 states have (on average 30.833333333333332) internal successors, (185), 5 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-22 15:29:18,347 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.90s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:29:20,022 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.66s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:30:46,609 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:30:48,095 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.49s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:31:05,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.57s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:31:06,884 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:31:14,671 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:31:16,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:31:37,746 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.36s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:31:43,243 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.14s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:31:56,227 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:31:57,421 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:32:38,529 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:32:49,861 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:33:16,482 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.30s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:33:25,597 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.20s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:33:29,954 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.60s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:33:31,478 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.52s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:33:37,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:33:54,334 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.75s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:34:03,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:34:18,977 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.00s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:34:21,465 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.51s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:34:27,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:34:38,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.31s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:34:41,384 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:34:52,328 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:34:59,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:35:03,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.15s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:35:04,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.27s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:35:06,705 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:35:17,305 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.28s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:35:34,193 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:35:44,273 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.05s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:35:45,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.41s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:35:52,505 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:35:57,907 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:36:25,290 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:36:51,583 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:36:59,230 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:37:02,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:37:09,768 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:37:17,013 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:38:53,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:38:54,293 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:38:55,519 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:39:04,431 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:39:10,203 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:39:45,601 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:39:53,848 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:39:55,038 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:39:57,208 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.50s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:39:58,298 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:40:42,961 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.03s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:40:52,877 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:41:00,369 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.21s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:41:07,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-22 15:41:13,834 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.39s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] Received shutdown request... [2023-12-22 15:41:20,474 WARN L340 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)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 15:41:20,481 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-22 15:41:20,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-22 15:41:20,559 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 180 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2023-12-22 15:41:20,560 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 2954 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 4422 mSolverCounterSat, 1803 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 699.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2954 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 6225 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1803 IncrementalHoareTripleChecker+Valid, 4422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 744.7s IncrementalHoareTripleChecker+Time [2023-12-22 15:41:20,560 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2954 Valid, 275 Invalid, 6225 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1803 Valid, 4422 Invalid, 0 Unknown, 0 Unchecked, 744.7s Time] [2023-12-22 15:41:20,561 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-22 15:41:20,571 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 [2023-12-22 15:41:20,762 WARN L477 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 [2023-12-22 15:41:20,763 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (1392states) and FLOYD_HOARE automaton (currently 7 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (5100 states constructed, input type IntersectNwa). [2023-12-22 15:41:20,767 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-22 15:41:20,770 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-22 15:41:20,771 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.12 03:41:20 BoogieIcfgContainer [2023-12-22 15:41:20,771 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-22 15:41:20,772 INFO L158 Benchmark]: Toolchain (without parser) took 883421.49ms. Allocated memory was 246.4MB in the beginning and 351.3MB in the end (delta: 104.9MB). Free memory was 187.0MB in the beginning and 218.2MB in the end (delta: -31.2MB). Peak memory consumption was 213.0MB. Max. memory is 8.0GB. [2023-12-22 15:41:20,772 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 194.0MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-22 15:41:20,772 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1023.10ms. Allocated memory is still 246.4MB. Free memory was 186.7MB in the beginning and 90.9MB in the end (delta: 95.8MB). Peak memory consumption was 97.3MB. Max. memory is 8.0GB. [2023-12-22 15:41:20,773 INFO L158 Benchmark]: Boogie Procedure Inliner took 168.73ms. Allocated memory is still 246.4MB. Free memory was 90.3MB in the beginning and 191.7MB in the end (delta: -101.4MB). Peak memory consumption was 26.5MB. Max. memory is 8.0GB. [2023-12-22 15:41:20,774 INFO L158 Benchmark]: Boogie Preprocessor took 165.23ms. Allocated memory is still 246.4MB. Free memory was 191.7MB in the beginning and 164.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. [2023-12-22 15:41:20,774 INFO L158 Benchmark]: RCFGBuilder took 34826.62ms. Allocated memory was 246.4MB in the beginning and 351.3MB in the end (delta: 104.9MB). Free memory was 164.5MB in the beginning and 111.5MB in the end (delta: 53.0MB). Peak memory consumption was 174.1MB. Max. memory is 8.0GB. [2023-12-22 15:41:20,774 INFO L158 Benchmark]: TraceAbstraction took 847233.02ms. Allocated memory is still 351.3MB. Free memory was 110.4MB in the beginning and 218.2MB in the end (delta: -107.8MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-22 15:41:20,775 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 194.0MB. Free memory is still 144.5MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1023.10ms. Allocated memory is still 246.4MB. Free memory was 186.7MB in the beginning and 90.9MB in the end (delta: 95.8MB). Peak memory consumption was 97.3MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 168.73ms. Allocated memory is still 246.4MB. Free memory was 90.3MB in the beginning and 191.7MB in the end (delta: -101.4MB). Peak memory consumption was 26.5MB. Max. memory is 8.0GB. * Boogie Preprocessor took 165.23ms. Allocated memory is still 246.4MB. Free memory was 191.7MB in the beginning and 164.5MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 8.0GB. * RCFGBuilder took 34826.62ms. Allocated memory was 246.4MB in the beginning and 351.3MB in the end (delta: 104.9MB). Free memory was 164.5MB in the beginning and 111.5MB in the end (delta: 53.0MB). Peak memory consumption was 174.1MB. Max. memory is 8.0GB. * TraceAbstraction took 847233.02ms. Allocated memory is still 351.3MB. Free memory was 110.4MB in the beginning and 218.2MB in the end (delta: -107.8MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 90]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 90). Cancelled while NwaCegarLoop was constructing difference of abstraction (1392states) and FLOYD_HOARE automaton (currently 7 states, 6 states before enhancement),while ReachableStatesComputation was computing reachable states (5100 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 528 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 847.2s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 837.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3783 SdHoareTripleChecker+Valid, 836.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3783 mSDsluCounter, 2160 SdHoareTripleChecker+Invalid, 775.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 333 mSDsCounter, 2536 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7015 IncrementalHoareTripleChecker+Invalid, 9551 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2536 mSolverCounterUnsat, 1827 mSDtfsCounter, 7015 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 316 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1392occurred in iteration=3, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 15 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 8.5s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 315 ConstructedInterpolants, 0 QuantifiedInterpolants, 1398 SizeOfPredicates, 0 NumberOfNonLiveVariables, 369 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 21/63 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown