/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/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-4.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 16:20:38,751 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 16:20:38,820 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 16:20:38,824 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 16:20:38,825 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 16:20:38,848 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 16:20:38,849 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 16:20:38,849 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 16:20:38,849 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 16:20:38,852 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 16:20:38,853 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 16:20:38,853 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 16:20:38,854 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 16:20:38,855 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 16:20:38,855 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 16:20:38,855 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 16:20:38,855 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 16:20:38,856 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 16:20:38,856 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 16:20:38,857 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 16:20:38,857 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 16:20:38,858 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 16:20:38,858 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 16:20:38,858 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 16:20:38,858 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 16:20:38,858 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 16:20:38,859 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 16:20:38,859 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 16:20:38,859 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 16:20:38,859 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 16:20:38,860 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 16:20:38,860 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 16:20:38,860 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 16:20:38,860 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 16:20:38,860 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 16:20:38,860 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 16:20:38,861 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 16:20:38,861 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 16:20:38,861 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 16:20:38,861 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 16:20:38,861 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 16:20:38,861 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 16:20:38,861 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 16:20:38,861 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 16:20:38,862 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 16:20:38,862 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 16:20:38,862 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 16:20:39,048 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 16:20:39,070 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 16:20:39,072 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 16:20:39,074 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 16:20:39,074 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 16:20:39,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-4.i [2023-12-23 16:20:40,117 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 16:20:40,291 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 16:20:40,291 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-4.i [2023-12-23 16:20:40,307 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dec90a47/47fd99f9f62c4cd6b3c166cc85ed17da/FLAGba25f3ea1 [2023-12-23 16:20:40,317 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2dec90a47/47fd99f9f62c4cd6b3c166cc85ed17da [2023-12-23 16:20:40,319 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 16:20:40,320 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 16:20:40,320 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 16:20:40,321 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 16:20:40,325 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 16:20:40,325 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,326 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@339a40c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40, skipping insertion in model container [2023-12-23 16:20:40,326 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,358 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 16:20:40,478 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-4.i[918,931] [2023-12-23 16:20:40,557 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 16:20:40,574 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 16:20:40,585 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-4.i[918,931] [2023-12-23 16:20:40,634 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 16:20:40,648 INFO L206 MainTranslator]: Completed translation [2023-12-23 16:20:40,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40 WrapperNode [2023-12-23 16:20:40,649 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 16:20:40,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 16:20:40,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 16:20:40,651 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 16:20:40,656 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,669 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,688 INFO L138 Inliner]: procedures = 27, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 215 [2023-12-23 16:20:40,688 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 16:20:40,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 16:20:40,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 16:20:40,689 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 16:20:40,696 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,696 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,699 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,710 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]. [2023-12-23 16:20:40,710 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,710 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,718 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,720 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,722 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,723 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,726 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 16:20:40,726 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 16:20:40,726 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 16:20:40,726 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 16:20:40,727 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40" (1/1) ... [2023-12-23 16:20:40,748 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 16:20:40,758 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 16:20:40,770 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) [2023-12-23 16:20:40,788 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 [2023-12-23 16:20:40,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 16:20:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 16:20:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 16:20:40,801 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 16:20:40,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 16:20:40,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 16:20:40,859 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 16:20:40,862 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 16:20:41,657 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 16:20:41,705 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 16:20:41,705 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 16:20:41,706 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:20:41 BoogieIcfgContainer [2023-12-23 16:20:41,706 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 16:20:41,707 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 16:20:41,707 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 16:20:41,709 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 16:20:41,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 04:20:40" (1/3) ... [2023-12-23 16:20:41,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ad984b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:20:41, skipping insertion in model container [2023-12-23 16:20:41,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 04:20:40" (2/3) ... [2023-12-23 16:20:41,710 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53ad984b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 04:20:41, skipping insertion in model container [2023-12-23 16:20:41,710 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 04:20:41" (3/3) ... [2023-12-23 16:20:41,711 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-4.i [2023-12-23 16:20:41,722 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 16:20:41,722 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 16:20:41,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 16:20:41,764 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;@25c099b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 16:20:41,764 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 16:20:41,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 54 states have (on average 1.5) internal successors, (81), 55 states have internal predecessors, (81), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-23 16:20:41,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2023-12-23 16:20:41,780 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:20:41,780 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 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, 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, 1] [2023-12-23 16:20:41,781 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:20:41,784 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:20:41,784 INFO L85 PathProgramCache]: Analyzing trace with hash 764516625, now seen corresponding path program 1 times [2023-12-23 16:20:41,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:20:41,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1029613204] [2023-12-23 16:20:41,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:20:41,797 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 [2023-12-23 16:20:41,798 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:20:41,812 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) [2023-12-23 16:20:41,873 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 [2023-12-23 16:20:42,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:20:42,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 16:20:42,198 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:20:42,244 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1034 proven. 0 refuted. 0 times theorem prover too weak. 1210 trivial. 0 not checked. [2023-12-23 16:20:42,245 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 16:20:42,245 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:20:42,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1029613204] [2023-12-23 16:20:42,245 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1029613204] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 16:20:42,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 16:20:42,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 16:20:42,247 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081700241] [2023-12-23 16:20:42,247 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 16:20:42,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 16:20:42,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:20:42,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 16:20:42,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 16:20:42,278 INFO L87 Difference]: Start difference. First operand has 91 states, 54 states have (on average 1.5) internal successors, (81), 55 states have internal predecessors, (81), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-23 16:20:42,522 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:20:42,522 INFO L93 Difference]: Finished difference Result 179 states and 330 transitions. [2023-12-23 16:20:42,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 16:20:42,536 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 209 [2023-12-23 16:20:42,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:20:42,541 INFO L225 Difference]: With dead ends: 179 [2023-12-23 16:20:42,541 INFO L226 Difference]: Without dead ends: 89 [2023-12-23 16:20:42,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 16:20:42,547 INFO L413 NwaCegarLoop]: 140 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 16:20:42,547 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 140 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 16:20:42,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-23 16:20:42,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-12-23 16:20:42,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 53 states have (on average 1.4150943396226414) internal successors, (75), 53 states have internal predecessors, (75), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-23 16:20:42,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 143 transitions. [2023-12-23 16:20:42,578 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 143 transitions. Word has length 209 [2023-12-23 16:20:42,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:20:42,579 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 143 transitions. [2023-12-23 16:20:42,579 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (34), 2 states have call predecessors, (34), 2 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-23 16:20:42,579 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 143 transitions. [2023-12-23 16:20:42,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-23 16:20:42,582 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:20:42,582 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 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, 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, 1, 1] [2023-12-23 16:20:42,592 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 [2023-12-23 16:20:42,787 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 [2023-12-23 16:20:42,787 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:20:42,787 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:20:42,788 INFO L85 PathProgramCache]: Analyzing trace with hash 2083289315, now seen corresponding path program 1 times [2023-12-23 16:20:42,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:20:42,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2011883413] [2023-12-23 16:20:42,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:20:42,789 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 [2023-12-23 16:20:42,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:20:42,792 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) [2023-12-23 16:20:42,803 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 [2023-12-23 16:20:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:20:43,026 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 16:20:43,032 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:20:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-23 16:20:43,417 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 16:20:43,417 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:20:43,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2011883413] [2023-12-23 16:20:43,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2011883413] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 16:20:43,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 16:20:43,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 16:20:43,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154512458] [2023-12-23 16:20:43,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 16:20:43,419 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 16:20:43,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:20:43,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 16:20:43,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 16:20:43,420 INFO L87 Difference]: Start difference. First operand 89 states and 143 transitions. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-23 16:20:43,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:20:43,911 INFO L93 Difference]: Finished difference Result 265 states and 427 transitions. [2023-12-23 16:20:43,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 16:20:43,912 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 210 [2023-12-23 16:20:43,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:20:43,915 INFO L225 Difference]: With dead ends: 265 [2023-12-23 16:20:43,915 INFO L226 Difference]: Without dead ends: 177 [2023-12-23 16:20:43,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 16:20:43,916 INFO L413 NwaCegarLoop]: 143 mSDtfsCounter, 50 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 280 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-23 16:20:43,917 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 280 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-23 16:20:43,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2023-12-23 16:20:43,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 175. [2023-12-23 16:20:43,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 104 states have (on average 1.4134615384615385) internal successors, (147), 104 states have internal predecessors, (147), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-23 16:20:43,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 283 transitions. [2023-12-23 16:20:43,939 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 283 transitions. Word has length 210 [2023-12-23 16:20:43,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:20:43,939 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 283 transitions. [2023-12-23 16:20:43,939 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 2 states have internal predecessors, (43), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-23 16:20:43,940 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 283 transitions. [2023-12-23 16:20:43,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2023-12-23 16:20:43,942 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:20:43,942 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 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, 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, 1, 1] [2023-12-23 16:20:43,958 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 [2023-12-23 16:20:44,150 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 [2023-12-23 16:20:44,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:20:44,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:20:44,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1265640865, now seen corresponding path program 1 times [2023-12-23 16:20:44,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:20:44,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [542537972] [2023-12-23 16:20:44,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:20:44,154 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 [2023-12-23 16:20:44,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:20:44,155 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) [2023-12-23 16:20:44,156 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 [2023-12-23 16:20:44,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:20:44,370 INFO L262 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-23 16:20:44,374 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:20:45,117 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 319 proven. 183 refuted. 0 times theorem prover too weak. 1742 trivial. 0 not checked. [2023-12-23 16:20:45,117 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 16:20:45,578 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 9 proven. 186 refuted. 0 times theorem prover too weak. 2049 trivial. 0 not checked. [2023-12-23 16:20:45,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:20:45,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [542537972] [2023-12-23 16:20:45,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [542537972] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 16:20:45,579 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 16:20:45,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2023-12-23 16:20:45,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734944612] [2023-12-23 16:20:45,579 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 16:20:45,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-12-23 16:20:45,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:20:45,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-12-23 16:20:45,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2023-12-23 16:20:45,581 INFO L87 Difference]: Start difference. First operand 175 states and 283 transitions. Second operand has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (66), 3 states have call predecessors, (66), 7 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) [2023-12-23 16:20:46,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:20:46,951 INFO L93 Difference]: Finished difference Result 421 states and 659 transitions. [2023-12-23 16:20:46,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-23 16:20:46,952 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (66), 3 states have call predecessors, (66), 7 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) Word has length 210 [2023-12-23 16:20:46,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:20:46,954 INFO L225 Difference]: With dead ends: 421 [2023-12-23 16:20:46,954 INFO L226 Difference]: Without dead ends: 247 [2023-12-23 16:20:46,956 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 428 GetRequests, 405 SyntacticMatches, 2 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2023-12-23 16:20:46,957 INFO L413 NwaCegarLoop]: 93 mSDtfsCounter, 216 mSDsluCounter, 249 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-12-23 16:20:46,957 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 342 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-12-23 16:20:46,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-12-23 16:20:46,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 206. [2023-12-23 16:20:46,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 131 states have (on average 1.3435114503816794) internal successors, (176), 131 states have internal predecessors, (176), 68 states have call successors, (68), 6 states have call predecessors, (68), 6 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-23 16:20:46,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 312 transitions. [2023-12-23 16:20:46,977 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 312 transitions. Word has length 210 [2023-12-23 16:20:46,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:20:46,978 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 312 transitions. [2023-12-23 16:20:46,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.357142857142857) internal successors, (61), 14 states have internal predecessors, (61), 3 states have call successors, (66), 3 states have call predecessors, (66), 7 states have return successors, (67), 3 states have call predecessors, (67), 3 states have call successors, (67) [2023-12-23 16:20:46,978 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 312 transitions. [2023-12-23 16:20:46,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-23 16:20:46,980 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:20:46,980 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 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, 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, 1, 1, 1] [2023-12-23 16:20:46,987 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 [2023-12-23 16:20:47,187 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 [2023-12-23 16:20:47,188 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:20:47,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:20:47,189 INFO L85 PathProgramCache]: Analyzing trace with hash 776663377, now seen corresponding path program 1 times [2023-12-23 16:20:47,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:20:47,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1231985506] [2023-12-23 16:20:47,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:20:47,189 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 [2023-12-23 16:20:47,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:20:47,205 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) [2023-12-23 16:20:47,229 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 [2023-12-23 16:20:47,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:20:47,417 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-23 16:20:47,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:20:48,626 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 849 proven. 75 refuted. 0 times theorem prover too weak. 1320 trivial. 0 not checked. [2023-12-23 16:20:48,627 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 16:20:48,968 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:20:48,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1231985506] [2023-12-23 16:20:48,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1231985506] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 16:20:48,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [320010872] [2023-12-23 16:20:48,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:20:48,969 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 16:20:48,969 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 16:20:49,029 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 16:20:49,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-23 16:20:49,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:20:49,820 INFO L262 TraceCheckSpWp]: Trace formula consists of 349 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-23 16:20:49,824 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:20:51,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 970 proven. 141 refuted. 0 times theorem prover too weak. 1133 trivial. 0 not checked. [2023-12-23 16:20:51,066 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 16:20:51,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [320010872] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 16:20:51,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 16:20:51,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10] total 16 [2023-12-23 16:20:51,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810335076] [2023-12-23 16:20:51,559 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 16:20:51,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-12-23 16:20:51,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:20:51,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-12-23 16:20:51,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=344, Unknown=0, NotChecked=0, Total=420 [2023-12-23 16:20:51,561 INFO L87 Difference]: Start difference. First operand 206 states and 312 transitions. Second operand has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 16 states have internal predecessors, (96), 5 states have call successors, (68), 5 states have call predecessors, (68), 8 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) [2023-12-23 16:20:58,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:20:58,185 INFO L93 Difference]: Finished difference Result 563 states and 828 transitions. [2023-12-23 16:20:58,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-23 16:20:58,186 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 16 states have internal predecessors, (96), 5 states have call successors, (68), 5 states have call predecessors, (68), 8 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) Word has length 211 [2023-12-23 16:20:58,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:20:58,194 INFO L225 Difference]: With dead ends: 563 [2023-12-23 16:20:58,195 INFO L226 Difference]: Without dead ends: 358 [2023-12-23 16:20:58,205 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 447 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=457, Invalid=1183, Unknown=0, NotChecked=0, Total=1640 [2023-12-23 16:20:58,212 INFO L413 NwaCegarLoop]: 146 mSDtfsCounter, 382 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 1354 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 710 SdHoareTripleChecker+Invalid, 1630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 1354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-12-23 16:20:58,212 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 710 Invalid, 1630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 1354 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-12-23 16:20:58,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2023-12-23 16:20:58,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 322. [2023-12-23 16:20:58,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 204 states have (on average 1.2647058823529411) internal successors, (258), 204 states have internal predecessors, (258), 102 states have call successors, (102), 15 states have call predecessors, (102), 15 states have return successors, (102), 102 states have call predecessors, (102), 102 states have call successors, (102) [2023-12-23 16:20:58,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 462 transitions. [2023-12-23 16:20:58,306 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 462 transitions. Word has length 211 [2023-12-23 16:20:58,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:20:58,307 INFO L495 AbstractCegarLoop]: Abstraction has 322 states and 462 transitions. [2023-12-23 16:20:58,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.647058823529412) internal successors, (96), 16 states have internal predecessors, (96), 5 states have call successors, (68), 5 states have call predecessors, (68), 8 states have return successors, (68), 5 states have call predecessors, (68), 5 states have call successors, (68) [2023-12-23 16:20:58,308 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 462 transitions. [2023-12-23 16:20:58,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2023-12-23 16:20:58,310 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:20:58,311 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 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, 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, 1, 1, 1] [2023-12-23 16:20:58,329 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 (5)] Forceful destruction successful, exit code 0 [2023-12-23 16:20:58,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-23 16:20:58,711 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=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 16:20:58,712 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:20:58,712 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:20:58,712 INFO L85 PathProgramCache]: Analyzing trace with hash 1034828815, now seen corresponding path program 1 times [2023-12-23 16:20:58,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:20:58,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [534836283] [2023-12-23 16:20:58,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:20:58,713 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 [2023-12-23 16:20:58,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:20:58,716 INFO L229 MonitoredProcess]: Starting monitored process 7 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) [2023-12-23 16:20:58,718 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 (7)] Waiting until timeout for monitored process [2023-12-23 16:20:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:20:58,932 INFO L262 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-23 16:20:58,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:20:59,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-23 16:20:59,530 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 16:20:59,530 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:20:59,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [534836283] [2023-12-23 16:20:59,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [534836283] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 16:20:59,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 16:20:59,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 16:20:59,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173012820] [2023-12-23 16:20:59,531 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 16:20:59,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 16:20:59,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:20:59,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 16:20:59,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-23 16:20:59,533 INFO L87 Difference]: Start difference. First operand 322 states and 462 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-23 16:21:00,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:21:00,390 INFO L93 Difference]: Finished difference Result 539 states and 767 transitions. [2023-12-23 16:21:00,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-23 16:21:00,404 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 211 [2023-12-23 16:21:00,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:21:00,414 INFO L225 Difference]: With dead ends: 539 [2023-12-23 16:21:00,414 INFO L226 Difference]: Without dead ends: 218 [2023-12-23 16:21:00,416 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-23 16:21:00,417 INFO L413 NwaCegarLoop]: 115 mSDtfsCounter, 87 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-23 16:21:00,417 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 395 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-23 16:21:00,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2023-12-23 16:21:00,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 191. [2023-12-23 16:21:00,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 112 states have (on average 1.1875) internal successors, (133), 112 states have internal predecessors, (133), 68 states have call successors, (68), 10 states have call predecessors, (68), 10 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-23 16:21:00,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 269 transitions. [2023-12-23 16:21:00,446 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 269 transitions. Word has length 211 [2023-12-23 16:21:00,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:21:00,447 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 269 transitions. [2023-12-23 16:21:00,447 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 4 states have internal predecessors, (44), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-23 16:21:00,447 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 269 transitions. [2023-12-23 16:21:00,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-23 16:21:00,449 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:21:00,449 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 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, 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, 1, 1, 1, 1] [2023-12-23 16:21:00,470 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 (7)] Forceful destruction successful, exit code 0 [2023-12-23 16:21:00,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /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 [2023-12-23 16:21:00,657 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:21:00,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:21:00,658 INFO L85 PathProgramCache]: Analyzing trace with hash -2085794112, now seen corresponding path program 1 times [2023-12-23 16:21:00,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:21:00,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [912840065] [2023-12-23 16:21:00,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:21:00,659 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 [2023-12-23 16:21:00,659 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:21:00,660 INFO L229 MonitoredProcess]: Starting monitored process 8 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) [2023-12-23 16:21:00,685 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 (8)] Waiting until timeout for monitored process [2023-12-23 16:21:00,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:21:00,869 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 16:21:00,872 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 16:21:01,133 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-23 16:21:01,133 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 16:21:01,133 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 16:21:01,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [912840065] [2023-12-23 16:21:01,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [912840065] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 16:21:01,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 16:21:01,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 16:21:01,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857098917] [2023-12-23 16:21:01,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 16:21:01,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 16:21:01,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 16:21:01,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 16:21:01,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-23 16:21:01,135 INFO L87 Difference]: Start difference. First operand 191 states and 269 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-23 16:21:01,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 16:21:01,811 INFO L93 Difference]: Finished difference Result 294 states and 412 transitions. [2023-12-23 16:21:01,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-23 16:21:01,812 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 212 [2023-12-23 16:21:01,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 16:21:01,816 INFO L225 Difference]: With dead ends: 294 [2023-12-23 16:21:01,816 INFO L226 Difference]: Without dead ends: 192 [2023-12-23 16:21:01,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 208 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2023-12-23 16:21:01,819 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 132 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-23 16:21:01,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 143 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-23 16:21:01,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2023-12-23 16:21:01,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 191. [2023-12-23 16:21:01,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 112 states have (on average 1.1785714285714286) internal successors, (132), 112 states have internal predecessors, (132), 68 states have call successors, (68), 10 states have call predecessors, (68), 10 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-12-23 16:21:01,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 268 transitions. [2023-12-23 16:21:01,844 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 268 transitions. Word has length 212 [2023-12-23 16:21:01,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 16:21:01,844 INFO L495 AbstractCegarLoop]: Abstraction has 191 states and 268 transitions. [2023-12-23 16:21:01,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-23 16:21:01,844 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 268 transitions. [2023-12-23 16:21:01,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2023-12-23 16:21:01,846 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 16:21:01,847 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 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, 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, 1, 1, 1, 1] [2023-12-23 16:21:01,858 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 (8)] Forceful destruction successful, exit code 0 [2023-12-23 16:21:02,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /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 [2023-12-23 16:21:02,049 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 16:21:02,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 16:21:02,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1276447486, now seen corresponding path program 1 times [2023-12-23 16:21:02,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 16:21:02,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [725073099] [2023-12-23 16:21:02,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 16:21:02,050 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 [2023-12-23 16:21:02,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 16:21:02,052 INFO L229 MonitoredProcess]: Starting monitored process 9 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) [2023-12-23 16:21:02,070 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 (9)] Waiting until timeout for monitored process [2023-12-23 16:21:02,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 16:21:02,262 INFO L262 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 23 conjunts are in the unsatisfiable core [2023-12-23 16:21:02,267 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-23 16:35:15,342 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 [2023-12-23 16:35:15,343 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 (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 16:35:15,667 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 16:35:15,677 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 (9)] Forceful destruction successful, exit code 0 [2023-12-23 16:35:15,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /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 [2023-12-23 16:35:15,876 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 213 with TraceHistMax 34,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-16-2-3-2-2-2-4-3-2-2-3-2-2-2-3-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-2-2-2-2-2-2-2-2-2-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-76-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-3-2-4-3-3-2-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-4-3-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-1 context. [2023-12-23 16:35:15,879 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2023-12-23 16:35:15,881 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 16:35:15,884 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 04:35:15 BoogieIcfgContainer [2023-12-23 16:35:15,885 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 16:35:15,887 INFO L158 Benchmark]: Toolchain (without parser) took 875566.99ms. Allocated memory was 237.0MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 182.7MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-23 16:35:15,887 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 197.1MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 16:35:15,887 INFO L158 Benchmark]: CACSL2BoogieTranslator took 328.53ms. Allocated memory is still 237.0MB. Free memory was 182.7MB in the beginning and 166.5MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-23 16:35:15,887 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.23ms. Allocated memory is still 237.0MB. Free memory was 166.5MB in the beginning and 163.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 16:35:15,888 INFO L158 Benchmark]: Boogie Preprocessor took 36.94ms. Allocated memory is still 237.0MB. Free memory was 163.9MB in the beginning and 160.2MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-23 16:35:15,888 INFO L158 Benchmark]: RCFGBuilder took 979.85ms. Allocated memory is still 237.0MB. Free memory was 159.7MB in the beginning and 131.4MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. [2023-12-23 16:35:15,888 INFO L158 Benchmark]: TraceAbstraction took 874178.96ms. Allocated memory was 237.0MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 130.8MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 1.4GB. Max. memory is 8.0GB. [2023-12-23 16:35:15,900 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 197.1MB. Free memory is still 144.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 328.53ms. Allocated memory is still 237.0MB. Free memory was 182.7MB in the beginning and 166.5MB in the end (delta: 16.3MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.23ms. Allocated memory is still 237.0MB. Free memory was 166.5MB in the beginning and 163.9MB in the end (delta: 2.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.94ms. Allocated memory is still 237.0MB. Free memory was 163.9MB in the beginning and 160.2MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 979.85ms. Allocated memory is still 237.0MB. Free memory was 159.7MB in the beginning and 131.4MB in the end (delta: 28.3MB). Peak memory consumption was 28.3MB. Max. memory is 8.0GB. * TraceAbstraction took 874178.96ms. Allocated memory was 237.0MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 130.8MB in the beginning and 1.8GB in the end (delta: -1.7GB). Peak memory consumption was 1.4GB. 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: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 213 with TraceHistMax 34,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-16-2-3-2-2-2-4-3-2-2-3-2-2-2-3-2-2-2-2-2-2-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-2-2-4-3-3-2-2-2-2-2-2-2-2-2-2-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-76-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-3-2-4-3-3-2-3-2-4-3-4-3-4-3-4-3-4-3-4-3-4-3-3-2-4-3-4-3-3-2-3-2-3-2-3-2-2-2-3-2-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 91 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 874.1s, OverallIterations: 7, TraceHistogramMax: 34, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 10.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 869 SdHoareTripleChecker+Valid, 8.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 867 mSDsluCounter, 2010 SdHoareTripleChecker+Invalid, 8.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1265 mSDsCounter, 386 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1969 IncrementalHoareTripleChecker+Invalid, 2355 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 386 mSolverCounterUnsat, 745 mSDtfsCounter, 1969 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1756 GetRequests, 1683 SyntacticMatches, 2 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=322occurred in iteration=4, InterpolantAutomatonStates: 55, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 6 MinimizatonAttempts, 107 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 1474 NumberOfCodeBlocks, 1474 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 1676 ConstructedInterpolants, 1 QuantifiedInterpolants, 9362 SizeOfPredicates, 33 NumberOfNonLiveVariables, 2437 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 17367/17952 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