/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_fillercodesize_ps-cn-500_file-92.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 05:37:09,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 05:37:09,521 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 05:37:09,524 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 05:37:09,524 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 05:37:09,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 05:37:09,547 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 05:37:09,548 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 05:37:09,548 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 05:37:09,551 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 05:37:09,552 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 05:37:09,552 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 05:37:09,553 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 05:37:09,554 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 05:37:09,554 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 05:37:09,554 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 05:37:09,554 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 05:37:09,555 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 05:37:09,555 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 05:37:09,555 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 05:37:09,555 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 05:37:09,555 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 05:37:09,556 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 05:37:09,556 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 05:37:09,556 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 05:37:09,556 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 05:37:09,556 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 05:37:09,556 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 05:37:09,556 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 05:37:09,557 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 05:37:09,557 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 05:37:09,558 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 05:37:09,558 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 05:37:09,558 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 05:37:09,558 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 05:37:09,558 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 05:37:09,558 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 05:37:09,558 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 05:37:09,558 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 05:37:09,559 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 05:37:09,559 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 05:37:09,559 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 05:37:09,559 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 05:37:09,559 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 05:37:09,559 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 05:37:09,560 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 05:37:09,560 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 05:37:09,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 05:37:09,755 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 05:37:09,757 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 05:37:09,758 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 05:37:09,760 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 05:37:09,762 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-92.i [2023-12-23 05:37:10,813 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 05:37:11,068 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 05:37:11,069 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-500_file-92.i [2023-12-23 05:37:11,087 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d165ee9ce/9e6a75320f7d41078856aaedc41e22a3/FLAGb62c99d21 [2023-12-23 05:37:11,100 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d165ee9ce/9e6a75320f7d41078856aaedc41e22a3 [2023-12-23 05:37:11,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 05:37:11,103 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 05:37:11,104 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 05:37:11,104 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 05:37:11,108 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 05:37:11,108 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,110 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4d7901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11, skipping insertion in model container [2023-12-23 05:37:11,110 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,153 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 05:37:11,273 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_fillercodesize_ps-cn-500_file-92.i[916,929] [2023-12-23 05:37:11,386 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 05:37:11,400 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 05:37:11,408 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_fillercodesize_ps-cn-500_file-92.i[916,929] [2023-12-23 05:37:11,489 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 05:37:11,504 INFO L206 MainTranslator]: Completed translation [2023-12-23 05:37:11,504 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11 WrapperNode [2023-12-23 05:37:11,504 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 05:37:11,505 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 05:37:11,505 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 05:37:11,505 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 05:37:11,510 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,530 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,565 INFO L138 Inliner]: procedures = 27, calls = 116, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 672 [2023-12-23 05:37:11,565 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 05:37:11,566 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 05:37:11,566 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 05:37:11,566 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 05:37:11,573 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,574 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,580 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,595 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 05:37:11,596 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,596 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,614 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,619 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,631 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,649 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 05:37:11,650 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 05:37:11,650 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 05:37:11,651 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 05:37:11,651 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11" (1/1) ... [2023-12-23 05:37:11,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 05:37:11,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 05:37:11,713 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 05:37:11,760 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 05:37:11,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 05:37:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 05:37:11,776 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 05:37:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 05:37:11,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 05:37:11,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 05:37:11,904 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 05:37:11,906 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 05:37:48,738 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 05:37:48,787 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 05:37:48,788 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 05:37:48,788 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:37:48 BoogieIcfgContainer [2023-12-23 05:37:48,788 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 05:37:48,791 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 05:37:48,791 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 05:37:48,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 05:37:48,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 05:37:11" (1/3) ... [2023-12-23 05:37:48,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d07a0c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:37:48, skipping insertion in model container [2023-12-23 05:37:48,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 05:37:11" (2/3) ... [2023-12-23 05:37:48,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d07a0c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 05:37:48, skipping insertion in model container [2023-12-23 05:37:48,795 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 05:37:48" (3/3) ... [2023-12-23 05:37:48,796 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-500_file-92.i [2023-12-23 05:37:48,808 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 05:37:48,809 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 05:37:48,861 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 05:37:48,866 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;@502508b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 05:37:48,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 05:37:48,871 INFO L276 IsEmpty]: Start isEmpty. Operand has 292 states, 186 states have (on average 1.6236559139784945) internal successors, (302), 187 states have internal predecessors, (302), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-23 05:37:48,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2023-12-23 05:37:48,895 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:37:48,896 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:37:48,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:37:48,900 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:37:48,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1827134059, now seen corresponding path program 1 times [2023-12-23 05:37:48,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:37:48,912 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219975954] [2023-12-23 05:37:48,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:37:48,912 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 05:37:48,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:37:48,914 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 05:37:48,922 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 05:37:50,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:37:50,461 INFO L262 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 05:37:50,475 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:37:50,536 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 05:37:50,536 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:37:50,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:37:50,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219975954] [2023-12-23 05:37:50,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [219975954] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:37:50,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:37:50,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 05:37:50,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256563218] [2023-12-23 05:37:50,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:37:50,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 05:37:50,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:37:50,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 05:37:50,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 05:37:50,563 INFO L87 Difference]: Start difference. First operand has 292 states, 186 states have (on average 1.6236559139784945) internal successors, (302), 187 states have internal predecessors, (302), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) Second operand has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:37:51,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:37:51,046 INFO L93 Difference]: Finished difference Result 581 states and 1117 transitions. [2023-12-23 05:37:51,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 05:37:51,050 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 648 [2023-12-23 05:37:51,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:37:51,063 INFO L225 Difference]: With dead ends: 581 [2023-12-23 05:37:51,063 INFO L226 Difference]: Without dead ends: 290 [2023-12-23 05:37:51,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 647 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 05:37:51,075 INFO L413 NwaCegarLoop]: 498 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 498 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-23 05:37:51,075 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 498 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-23 05:37:51,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2023-12-23 05:37:51,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 290. [2023-12-23 05:37:51,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 185 states have (on average 1.5945945945945945) internal successors, (295), 185 states have internal predecessors, (295), 103 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-23 05:37:51,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 501 transitions. [2023-12-23 05:37:51,161 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 501 transitions. Word has length 648 [2023-12-23 05:37:51,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:37:51,163 INFO L495 AbstractCegarLoop]: Abstraction has 290 states and 501 transitions. [2023-12-23 05:37:51,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:37:51,169 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 501 transitions. [2023-12-23 05:37:51,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 649 [2023-12-23 05:37:51,183 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:37:51,183 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:37:51,229 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 05:37:51,404 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 05:37:51,405 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:37:51,405 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:37:51,406 INFO L85 PathProgramCache]: Analyzing trace with hash -1081047827, now seen corresponding path program 1 times [2023-12-23 05:37:51,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:37:51,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1646447481] [2023-12-23 05:37:51,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:37:51,407 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 05:37:51,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:37:51,411 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 05:37:51,412 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 05:37:52,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:37:52,881 INFO L262 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:37:52,891 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:37:52,947 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 05:37:52,948 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:37:52,948 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:37:52,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1646447481] [2023-12-23 05:37:52,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1646447481] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:37:52,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:37:52,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:37:52,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961948063] [2023-12-23 05:37:52,953 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:37:52,957 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:37:52,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:37:52,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:37:52,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:37:52,960 INFO L87 Difference]: Start difference. First operand 290 states and 501 transitions. Second operand has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:37:55,316 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.37s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:37:55,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:37:55,330 INFO L93 Difference]: Finished difference Result 747 states and 1299 transitions. [2023-12-23 05:37:55,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:37:55,336 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 648 [2023-12-23 05:37:55,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:37:55,346 INFO L225 Difference]: With dead ends: 747 [2023-12-23 05:37:55,346 INFO L226 Difference]: Without dead ends: 458 [2023-12-23 05:37:55,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 646 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 05:37:55,348 INFO L413 NwaCegarLoop]: 516 mSDtfsCounter, 293 mSDsluCounter, 466 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 293 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-23 05:37:55,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [293 Valid, 982 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-23 05:37:55,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458 states. [2023-12-23 05:37:55,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458 to 455. [2023-12-23 05:37:55,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 319 states have (on average 1.6426332288401253) internal successors, (524), 320 states have internal predecessors, (524), 133 states have call successors, (133), 2 states have call predecessors, (133), 2 states have return successors, (133), 132 states have call predecessors, (133), 133 states have call successors, (133) [2023-12-23 05:37:55,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 790 transitions. [2023-12-23 05:37:55,437 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 790 transitions. Word has length 648 [2023-12-23 05:37:55,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:37:55,444 INFO L495 AbstractCegarLoop]: Abstraction has 455 states and 790 transitions. [2023-12-23 05:37:55,445 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.333333333333336) internal successors, (136), 3 states have internal predecessors, (136), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:37:55,445 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 790 transitions. [2023-12-23 05:37:55,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2023-12-23 05:37:55,452 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:37:55,452 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:37:55,500 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 05:37:55,668 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 05:37:55,669 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:37:55,669 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:37:55,669 INFO L85 PathProgramCache]: Analyzing trace with hash -1668213986, now seen corresponding path program 1 times [2023-12-23 05:37:55,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:37:55,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1608902524] [2023-12-23 05:37:55,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:37:55,671 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 05:37:55,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:37:55,672 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 05:37:55,686 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 05:37:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:37:57,137 INFO L262 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:37:57,145 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:37:57,204 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 05:37:57,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:37:57,204 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:37:57,204 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1608902524] [2023-12-23 05:37:57,204 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1608902524] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:37:57,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:37:57,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:37:57,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [234511217] [2023-12-23 05:37:57,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:37:57,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:37:57,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:37:57,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:37:57,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:37:57,207 INFO L87 Difference]: Start difference. First operand 455 states and 790 transitions. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:37:57,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:37:57,641 INFO L93 Difference]: Finished difference Result 917 states and 1586 transitions. [2023-12-23 05:37:57,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:37:57,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 649 [2023-12-23 05:37:57,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:37:57,647 INFO L225 Difference]: With dead ends: 917 [2023-12-23 05:37:57,647 INFO L226 Difference]: Without dead ends: 463 [2023-12-23 05:37:57,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 648 GetRequests, 647 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 05:37:57,650 INFO L413 NwaCegarLoop]: 567 mSDtfsCounter, 276 mSDsluCounter, 474 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 1041 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-23 05:37:57,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 1041 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-23 05:37:57,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 463 states. [2023-12-23 05:37:57,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 463 to 370. [2023-12-23 05:37:57,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 264 states have (on average 1.621212121212121) internal successors, (428), 264 states have internal predecessors, (428), 103 states have call successors, (103), 2 states have call predecessors, (103), 2 states have return successors, (103), 103 states have call predecessors, (103), 103 states have call successors, (103) [2023-12-23 05:37:57,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 634 transitions. [2023-12-23 05:37:57,678 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 634 transitions. Word has length 649 [2023-12-23 05:37:57,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:37:57,680 INFO L495 AbstractCegarLoop]: Abstraction has 370 states and 634 transitions. [2023-12-23 05:37:57,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:37:57,680 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 634 transitions. [2023-12-23 05:37:57,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2023-12-23 05:37:57,685 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:37:57,685 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:37:57,741 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 [2023-12-23 05:37:57,904 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 05:37:57,906 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:37:57,906 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:37:57,906 INFO L85 PathProgramCache]: Analyzing trace with hash 396282553, now seen corresponding path program 1 times [2023-12-23 05:37:57,907 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:37:57,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1192889568] [2023-12-23 05:37:57,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:37:57,908 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 05:37:57,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:37:57,910 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 05:37:57,959 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 05:37:59,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:37:59,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 05:37:59,380 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:38:00,820 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 10608 proven. 153 refuted. 0 times theorem prover too weak. 10251 trivial. 0 not checked. [2023-12-23 05:38:00,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:38:01,548 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 153 proven. 153 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2023-12-23 05:38:01,549 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:38:01,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1192889568] [2023-12-23 05:38:01,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1192889568] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:38:01,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:38:01,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 05:38:01,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128080479] [2023-12-23 05:38:01,551 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:38:01,553 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 05:38:01,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:38:01,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 05:38:01,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 05:38:01,556 INFO L87 Difference]: Start difference. First operand 370 states and 634 transitions. Second operand has 8 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 2 states have call successors, (154), 2 states have call predecessors, (154), 4 states have return successors, (155), 2 states have call predecessors, (155), 2 states have call successors, (155) [2023-12-23 05:38:06,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:38:06,893 INFO L93 Difference]: Finished difference Result 1147 states and 1931 transitions. [2023-12-23 05:38:06,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-12-23 05:38:06,895 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 2 states have call successors, (154), 2 states have call predecessors, (154), 4 states have return successors, (155), 2 states have call predecessors, (155), 2 states have call successors, (155) Word has length 649 [2023-12-23 05:38:06,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:38:06,899 INFO L225 Difference]: With dead ends: 1147 [2023-12-23 05:38:06,899 INFO L226 Difference]: Without dead ends: 778 [2023-12-23 05:38:06,901 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1307 GetRequests, 1290 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=103, Invalid=203, Unknown=0, NotChecked=0, Total=306 [2023-12-23 05:38:06,903 INFO L413 NwaCegarLoop]: 593 mSDtfsCounter, 785 mSDsluCounter, 1353 mSDsCounter, 0 mSdLazyCounter, 1437 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 837 SdHoareTripleChecker+Valid, 1946 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 1437 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2023-12-23 05:38:06,904 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [837 Valid, 1946 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 1437 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2023-12-23 05:38:06,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 778 states. [2023-12-23 05:38:06,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 778 to 715. [2023-12-23 05:38:06,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 715 states, 450 states have (on average 1.5155555555555555) internal successors, (682), 452 states have internal predecessors, (682), 257 states have call successors, (257), 7 states have call predecessors, (257), 7 states have return successors, (257), 255 states have call predecessors, (257), 257 states have call successors, (257) [2023-12-23 05:38:06,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 715 states to 715 states and 1196 transitions. [2023-12-23 05:38:06,951 INFO L78 Accepts]: Start accepts. Automaton has 715 states and 1196 transitions. Word has length 649 [2023-12-23 05:38:06,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:38:06,952 INFO L495 AbstractCegarLoop]: Abstraction has 715 states and 1196 transitions. [2023-12-23 05:38:06,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.25) internal successors, (146), 8 states have internal predecessors, (146), 2 states have call successors, (154), 2 states have call predecessors, (154), 4 states have return successors, (155), 2 states have call predecessors, (155), 2 states have call successors, (155) [2023-12-23 05:38:06,952 INFO L276 IsEmpty]: Start isEmpty. Operand 715 states and 1196 transitions. [2023-12-23 05:38:06,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 650 [2023-12-23 05:38:06,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:38:06,956 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:07,000 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 05:38:07,180 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 [2023-12-23 05:38:07,181 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:38:07,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:38:07,181 INFO L85 PathProgramCache]: Analyzing trace with hash 475902073, now seen corresponding path program 1 times [2023-12-23 05:38:07,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:38:07,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1398768513] [2023-12-23 05:38:07,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:38:07,183 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 05:38:07,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:38:07,184 INFO L229 MonitoredProcess]: Starting monitored process 6 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 05:38:07,186 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 (6)] Waiting until timeout for monitored process [2023-12-23 05:38:08,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:38:08,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:38:08,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:38:09,511 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 10518 proven. 138 refuted. 0 times theorem prover too weak. 10356 trivial. 0 not checked. [2023-12-23 05:38:09,512 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:38:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 168 proven. 138 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2023-12-23 05:38:10,101 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:38:10,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1398768513] [2023-12-23 05:38:10,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1398768513] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:38:10,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:38:10,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 05:38:10,101 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235608825] [2023-12-23 05:38:10,101 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:38:10,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 05:38:10,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:38:10,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 05:38:10,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:38:10,103 INFO L87 Difference]: Start difference. First operand 715 states and 1196 transitions. Second operand has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 2 states have call successors, (149), 2 states have call predecessors, (149), 4 states have return successors, (150), 2 states have call predecessors, (150), 2 states have call successors, (150) [2023-12-23 05:38:12,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:38:12,276 INFO L93 Difference]: Finished difference Result 1364 states and 2268 transitions. [2023-12-23 05:38:12,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 05:38:12,279 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 2 states have call successors, (149), 2 states have call predecessors, (149), 4 states have return successors, (150), 2 states have call predecessors, (150), 2 states have call successors, (150) Word has length 649 [2023-12-23 05:38:12,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:38:12,285 INFO L225 Difference]: With dead ends: 1364 [2023-12-23 05:38:12,285 INFO L226 Difference]: Without dead ends: 733 [2023-12-23 05:38:12,287 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1300 GetRequests, 1290 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 05:38:12,288 INFO L413 NwaCegarLoop]: 377 mSDtfsCounter, 502 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 518 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 922 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 518 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-12-23 05:38:12,288 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 922 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 518 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-12-23 05:38:12,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 733 states. [2023-12-23 05:38:12,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 733 to 717. [2023-12-23 05:38:12,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 717 states, 450 states have (on average 1.4777777777777779) internal successors, (665), 452 states have internal predecessors, (665), 257 states have call successors, (257), 9 states have call predecessors, (257), 9 states have return successors, (257), 255 states have call predecessors, (257), 257 states have call successors, (257) [2023-12-23 05:38:12,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 717 states to 717 states and 1179 transitions. [2023-12-23 05:38:12,338 INFO L78 Accepts]: Start accepts. Automaton has 717 states and 1179 transitions. Word has length 649 [2023-12-23 05:38:12,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:38:12,344 INFO L495 AbstractCegarLoop]: Abstraction has 717 states and 1179 transitions. [2023-12-23 05:38:12,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 20.857142857142858) internal successors, (146), 7 states have internal predecessors, (146), 2 states have call successors, (149), 2 states have call predecessors, (149), 4 states have return successors, (150), 2 states have call predecessors, (150), 2 states have call successors, (150) [2023-12-23 05:38:12,345 INFO L276 IsEmpty]: Start isEmpty. Operand 717 states and 1179 transitions. [2023-12-23 05:38:12,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2023-12-23 05:38:12,349 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:38:12,350 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:12,394 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 (6)] Forceful destruction successful, exit code 0 [2023-12-23 05:38:12,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /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 05:38:12,569 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:38:12,569 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:38:12,569 INFO L85 PathProgramCache]: Analyzing trace with hash 1896534778, now seen corresponding path program 1 times [2023-12-23 05:38:12,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:38:12,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824179235] [2023-12-23 05:38:12,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:38:12,570 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 05:38:12,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:38:12,572 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 05:38:12,596 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 05:38:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:38:13,995 INFO L262 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:38:14,022 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:38:14,485 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 8886 proven. 90 refuted. 0 times theorem prover too weak. 12036 trivial. 0 not checked. [2023-12-23 05:38:14,485 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:38:14,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:38:14,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824179235] [2023-12-23 05:38:14,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824179235] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:38:14,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1609793320] [2023-12-23 05:38:14,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:38:14,681 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:38:14,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:38:14,683 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:38:14,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-23 05:38:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:38:16,041 INFO L262 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:38:16,047 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:38:16,081 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 05:38:16,081 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:38:16,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1609793320] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:38:16,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 05:38:16,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-23 05:38:16,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373957308] [2023-12-23 05:38:16,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:38:16,082 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:38:16,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:38:16,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:38:16,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:38:16,083 INFO L87 Difference]: Start difference. First operand 717 states and 1179 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:38:17,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:38:17,045 INFO L93 Difference]: Finished difference Result 1735 states and 2840 transitions. [2023-12-23 05:38:17,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:38:17,048 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 650 [2023-12-23 05:38:17,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:38:17,055 INFO L225 Difference]: With dead ends: 1735 [2023-12-23 05:38:17,055 INFO L226 Difference]: Without dead ends: 1102 [2023-12-23 05:38:17,057 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1378 GetRequests, 1373 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:38:17,057 INFO L413 NwaCegarLoop]: 487 mSDtfsCounter, 286 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 965 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-12-23 05:38:17,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 965 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-12-23 05:38:17,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2023-12-23 05:38:17,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 877. [2023-12-23 05:38:17,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 557 states have (on average 1.4703770197486534) internal successors, (819), 560 states have internal predecessors, (819), 306 states have call successors, (306), 13 states have call predecessors, (306), 13 states have return successors, (306), 303 states have call predecessors, (306), 306 states have call successors, (306) [2023-12-23 05:38:17,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1431 transitions. [2023-12-23 05:38:17,138 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1431 transitions. Word has length 650 [2023-12-23 05:38:17,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:38:17,139 INFO L495 AbstractCegarLoop]: Abstraction has 877 states and 1431 transitions. [2023-12-23 05:38:17,139 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:38:17,139 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1431 transitions. [2023-12-23 05:38:17,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 651 [2023-12-23 05:38:17,142 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:38:17,143 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:17,181 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 05:38:17,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Forceful destruction successful, exit code 0 [2023-12-23 05:38:17,558 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=3,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 05:38:17,559 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:38:17,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:38:17,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1824148220, now seen corresponding path program 1 times [2023-12-23 05:38:17,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:38:17,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1957302657] [2023-12-23 05:38:17,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:38:17,561 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 05:38:17,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:38:17,562 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 05:38:17,566 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 05:38:18,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:38:18,921 INFO L262 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:38:18,928 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:38:19,386 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 8886 proven. 90 refuted. 0 times theorem prover too weak. 12036 trivial. 0 not checked. [2023-12-23 05:38:19,387 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:38:19,554 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:38:19,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1957302657] [2023-12-23 05:38:19,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1957302657] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:38:19,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1475344589] [2023-12-23 05:38:19,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:38:19,555 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:38:19,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:38:19,556 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:38:19,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Waiting until timeout for monitored process [2023-12-23 05:38:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:38:20,901 INFO L262 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:38:20,935 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:38:22,661 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 05:38:22,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:38:22,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1475344589] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:38:22,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 05:38:22,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-12-23 05:38:22,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67320439] [2023-12-23 05:38:22,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:38:22,662 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:38:22,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:38:22,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:38:22,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:38:22,663 INFO L87 Difference]: Start difference. First operand 877 states and 1431 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:38:24,688 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:38:24,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:38:24,941 INFO L93 Difference]: Finished difference Result 2451 states and 4006 transitions. [2023-12-23 05:38:24,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:38:24,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 650 [2023-12-23 05:38:24,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:38:24,988 INFO L225 Difference]: With dead ends: 2451 [2023-12-23 05:38:24,989 INFO L226 Difference]: Without dead ends: 1658 [2023-12-23 05:38:24,991 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1378 GetRequests, 1373 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:38:24,991 INFO L413 NwaCegarLoop]: 566 mSDtfsCounter, 178 mSDsluCounter, 483 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 1049 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-12-23 05:38:24,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 1049 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-12-23 05:38:24,993 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2023-12-23 05:38:25,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1479. [2023-12-23 05:38:25,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1479 states, 972 states have (on average 1.4948559670781894) internal successors, (1453), 976 states have internal predecessors, (1453), 485 states have call successors, (485), 21 states have call predecessors, (485), 21 states have return successors, (485), 481 states have call predecessors, (485), 485 states have call successors, (485) [2023-12-23 05:38:25,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1479 states to 1479 states and 2423 transitions. [2023-12-23 05:38:25,086 INFO L78 Accepts]: Start accepts. Automaton has 1479 states and 2423 transitions. Word has length 650 [2023-12-23 05:38:25,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:38:25,087 INFO L495 AbstractCegarLoop]: Abstraction has 1479 states and 2423 transitions. [2023-12-23 05:38:25,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:38:25,088 INFO L276 IsEmpty]: Start isEmpty. Operand 1479 states and 2423 transitions. [2023-12-23 05:38:25,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2023-12-23 05:38:25,091 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:38:25,092 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:25,150 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 05:38:25,330 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (10)] Forceful destruction successful, exit code 0 [2023-12-23 05:38:25,520 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=3,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 05:38:25,521 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:38:25,521 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:38:25,521 INFO L85 PathProgramCache]: Analyzing trace with hash -1800744638, now seen corresponding path program 1 times [2023-12-23 05:38:25,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:38:25,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1499389922] [2023-12-23 05:38:25,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:38:25,522 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 05:38:25,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:38:25,524 INFO L229 MonitoredProcess]: Starting monitored process 11 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 05:38:25,531 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 (11)] Waiting until timeout for monitored process [2023-12-23 05:38:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:38:26,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:38:26,976 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:38:27,669 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 8886 proven. 90 refuted. 0 times theorem prover too weak. 12036 trivial. 0 not checked. [2023-12-23 05:38:27,669 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:38:27,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:38:27,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1499389922] [2023-12-23 05:38:27,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1499389922] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:38:27,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [259468064] [2023-12-23 05:38:27,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:38:27,886 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:38:27,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:38:27,887 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:38:27,889 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Waiting until timeout for monitored process [2023-12-23 05:38:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:38:29,281 INFO L262 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:38:29,287 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:38:29,331 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 05:38:29,331 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:38:29,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [259468064] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:38:29,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 05:38:29,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2023-12-23 05:38:29,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20847512] [2023-12-23 05:38:29,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:38:29,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:38:29,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:38:29,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:38:29,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:38:29,333 INFO L87 Difference]: Start difference. First operand 1479 states and 2423 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:38:31,441 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.64s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:38:32,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:38:32,060 INFO L93 Difference]: Finished difference Result 3984 states and 6487 transitions. [2023-12-23 05:38:32,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:38:32,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 651 [2023-12-23 05:38:32,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:38:32,074 INFO L225 Difference]: With dead ends: 3984 [2023-12-23 05:38:32,074 INFO L226 Difference]: Without dead ends: 2589 [2023-12-23 05:38:32,077 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1381 GetRequests, 1376 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:38:32,078 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 403 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 403 SdHoareTripleChecker+Valid, 969 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-23 05:38:32,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [403 Valid, 969 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-23 05:38:32,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2589 states. [2023-12-23 05:38:32,195 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2589 to 1499. [2023-12-23 05:38:32,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 992 states have (on average 1.5) internal successors, (1488), 996 states have internal predecessors, (1488), 485 states have call successors, (485), 21 states have call predecessors, (485), 21 states have return successors, (485), 481 states have call predecessors, (485), 485 states have call successors, (485) [2023-12-23 05:38:32,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 2458 transitions. [2023-12-23 05:38:32,202 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 2458 transitions. Word has length 651 [2023-12-23 05:38:32,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:38:32,202 INFO L495 AbstractCegarLoop]: Abstraction has 1499 states and 2458 transitions. [2023-12-23 05:38:32,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:38:32,203 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 2458 transitions. [2023-12-23 05:38:32,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2023-12-23 05:38:32,206 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:38:32,207 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:32,245 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 (11)] Forceful destruction successful, exit code 0 [2023-12-23 05:38:32,438 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (12)] Forceful destruction successful, exit code 0 [2023-12-23 05:38:32,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /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=3,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 05:38:32,628 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:38:32,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:38:32,629 INFO L85 PathProgramCache]: Analyzing trace with hash -1581889920, now seen corresponding path program 1 times [2023-12-23 05:38:32,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:38:32,630 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1794352870] [2023-12-23 05:38:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:38:32,630 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 05:38:32,630 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:38:32,631 INFO L229 MonitoredProcess]: Starting monitored process 13 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 05:38:32,697 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 (13)] Waiting until timeout for monitored process [2023-12-23 05:38:33,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:38:33,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:38:33,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:38:34,306 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 8886 proven. 90 refuted. 0 times theorem prover too weak. 12036 trivial. 0 not checked. [2023-12-23 05:38:34,307 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:38:34,400 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:38:34,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1794352870] [2023-12-23 05:38:34,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1794352870] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:38:34,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [984556944] [2023-12-23 05:38:34,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:38:34,401 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:38:34,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:38:34,402 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:38:34,403 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Waiting until timeout for monitored process [2023-12-23 05:38:35,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:38:35,553 INFO L262 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:38:35,559 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:38:36,605 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 05:38:36,605 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:38:36,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [984556944] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:38:36,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 05:38:36,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-12-23 05:38:36,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280380963] [2023-12-23 05:38:36,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:38:36,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:38:36,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:38:36,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:38:36,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:38:36,607 INFO L87 Difference]: Start difference. First operand 1499 states and 2458 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:38:40,686 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:38:40,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:38:40,795 INFO L93 Difference]: Finished difference Result 4329 states and 7106 transitions. [2023-12-23 05:38:40,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:38:40,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 651 [2023-12-23 05:38:40,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:38:40,820 INFO L225 Difference]: With dead ends: 4329 [2023-12-23 05:38:40,820 INFO L226 Difference]: Without dead ends: 2914 [2023-12-23 05:38:40,824 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1381 GetRequests, 1376 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:38:40,825 INFO L413 NwaCegarLoop]: 488 mSDtfsCounter, 161 mSDsluCounter, 486 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 1 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 974 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2023-12-23 05:38:40,825 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [161 Valid, 974 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 7 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2023-12-23 05:38:40,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2914 states. [2023-12-23 05:38:41,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2914 to 2758. [2023-12-23 05:38:41,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2758 states, 1877 states have (on average 1.5178476291955247) internal successors, (2849), 1883 states have internal predecessors, (2849), 843 states have call successors, (843), 37 states have call predecessors, (843), 37 states have return successors, (843), 837 states have call predecessors, (843), 843 states have call successors, (843) [2023-12-23 05:38:41,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2758 states to 2758 states and 4535 transitions. [2023-12-23 05:38:41,085 INFO L78 Accepts]: Start accepts. Automaton has 2758 states and 4535 transitions. Word has length 651 [2023-12-23 05:38:41,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:38:41,086 INFO L495 AbstractCegarLoop]: Abstraction has 2758 states and 4535 transitions. [2023-12-23 05:38:41,087 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:38:41,087 INFO L276 IsEmpty]: Start isEmpty. Operand 2758 states and 4535 transitions. [2023-12-23 05:38:41,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2023-12-23 05:38:41,093 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:38:41,093 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:41,115 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (14)] Forceful destruction successful, exit code 0 [2023-12-23 05:38:41,360 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 (13)] Forceful destruction successful, exit code 0 [2023-12-23 05:38:41,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,13 /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 05:38:41,516 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:38:41,517 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:38:41,517 INFO L85 PathProgramCache]: Analyzing trace with hash 1692009022, now seen corresponding path program 1 times [2023-12-23 05:38:41,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:38:41,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1023718078] [2023-12-23 05:38:41,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:38:41,518 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 05:38:41,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:38:41,520 INFO L229 MonitoredProcess]: Starting monitored process 15 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 05:38:41,521 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 (15)] Waiting until timeout for monitored process [2023-12-23 05:38:42,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:38:42,933 INFO L262 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:38:42,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:38:43,624 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 8886 proven. 90 refuted. 0 times theorem prover too weak. 12036 trivial. 0 not checked. [2023-12-23 05:38:43,624 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:38:43,830 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:38:43,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1023718078] [2023-12-23 05:38:43,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1023718078] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:38:43,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [427745946] [2023-12-23 05:38:43,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:38:43,831 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:38:43,832 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:38:43,833 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:38:43,841 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (16)] Waiting until timeout for monitored process [2023-12-23 05:38:44,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:38:45,095 INFO L262 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 05:38:45,100 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:38:45,223 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 05:38:45,223 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:38:45,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [427745946] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:38:45,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 05:38:45,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2023-12-23 05:38:45,223 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194440359] [2023-12-23 05:38:45,223 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:38:45,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 05:38:45,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:38:45,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 05:38:45,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-23 05:38:45,226 INFO L87 Difference]: Start difference. First operand 2758 states and 4535 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:38:48,262 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.55s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:38:50,419 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:38:52,960 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:38:53,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:38:53,587 INFO L93 Difference]: Finished difference Result 6774 states and 11103 transitions. [2023-12-23 05:38:53,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-23 05:38:53,587 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 651 [2023-12-23 05:38:53,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:38:53,602 INFO L225 Difference]: With dead ends: 6774 [2023-12-23 05:38:53,602 INFO L226 Difference]: Without dead ends: 4100 [2023-12-23 05:38:53,607 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1383 GetRequests, 1376 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-23 05:38:53,608 INFO L413 NwaCegarLoop]: 903 mSDtfsCounter, 646 mSDsluCounter, 582 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 160 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 1485 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 160 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2023-12-23 05:38:53,608 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 1485 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [160 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2023-12-23 05:38:53,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4100 states. [2023-12-23 05:38:53,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4100 to 2106. [2023-12-23 05:38:53,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2106 states, 1541 states have (on average 1.554185593770279) internal successors, (2395), 1543 states have internal predecessors, (2395), 539 states have call successors, (539), 25 states have call predecessors, (539), 25 states have return successors, (539), 537 states have call predecessors, (539), 539 states have call successors, (539) [2023-12-23 05:38:53,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2106 states to 2106 states and 3473 transitions. [2023-12-23 05:38:53,824 INFO L78 Accepts]: Start accepts. Automaton has 2106 states and 3473 transitions. Word has length 651 [2023-12-23 05:38:53,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:38:53,825 INFO L495 AbstractCegarLoop]: Abstraction has 2106 states and 3473 transitions. [2023-12-23 05:38:53,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:38:53,826 INFO L276 IsEmpty]: Start isEmpty. Operand 2106 states and 3473 transitions. [2023-12-23 05:38:53,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2023-12-23 05:38:53,829 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:38:53,830 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:38:53,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (16)] Forceful destruction successful, exit code 0 [2023-12-23 05:38:54,081 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 (15)] Ended with exit code 0 [2023-12-23 05:38:54,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,15 /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 05:38:54,252 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:38:54,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:38:54,265 INFO L85 PathProgramCache]: Analyzing trace with hash -360917548, now seen corresponding path program 1 times [2023-12-23 05:38:54,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:38:54,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2004224892] [2023-12-23 05:38:54,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:38:54,267 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 05:38:54,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:38:54,268 INFO L229 MonitoredProcess]: Starting monitored process 17 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 05:38:54,269 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 (17)] Waiting until timeout for monitored process [2023-12-23 05:38:55,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:38:55,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:38:55,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:38:56,409 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 8886 proven. 90 refuted. 0 times theorem prover too weak. 12036 trivial. 0 not checked. [2023-12-23 05:38:56,409 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:38:56,580 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:38:56,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2004224892] [2023-12-23 05:38:56,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2004224892] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:38:56,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [867311104] [2023-12-23 05:38:56,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:38:56,581 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:38:56,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:38:56,582 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:38:56,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (18)] Waiting until timeout for monitored process [2023-12-23 05:39:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:39:00,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 05:39:00,310 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:39:07,114 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 05:39:07,114 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:39:07,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [867311104] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:39:07,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 05:39:07,115 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-23 05:39:07,115 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440721494] [2023-12-23 05:39:07,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:39:07,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 05:39:07,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:39:07,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 05:39:07,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-23 05:39:07,116 INFO L87 Difference]: Start difference. First operand 2106 states and 3473 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:39:08,302 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.16s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:39:10,512 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:39:12,288 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.19s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:39:13,925 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.59s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:39:15,709 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.71s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, RoundingMode, Real, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2023-12-23 05:39:17,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:39:17,814 INFO L93 Difference]: Finished difference Result 6150 states and 10113 transitions. [2023-12-23 05:39:17,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 05:39:17,815 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 651 [2023-12-23 05:39:17,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:39:17,830 INFO L225 Difference]: With dead ends: 6150 [2023-12-23 05:39:17,830 INFO L226 Difference]: Without dead ends: 4128 [2023-12-23 05:39:17,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1381 GetRequests, 1375 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2023-12-23 05:39:17,835 INFO L413 NwaCegarLoop]: 531 mSDtfsCounter, 363 mSDsluCounter, 938 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 363 SdHoareTripleChecker+Valid, 1469 SdHoareTripleChecker+Invalid, 295 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.4s IncrementalHoareTripleChecker+Time [2023-12-23 05:39:17,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [363 Valid, 1469 Invalid, 295 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 10.4s Time] [2023-12-23 05:39:17,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4128 states. [2023-12-23 05:39:18,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4128 to 3812. [2023-12-23 05:39:18,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3812 states, 2774 states have (on average 1.5385724585436193) internal successors, (4268), 2779 states have internal predecessors, (4268), 988 states have call successors, (988), 49 states have call predecessors, (988), 49 states have return successors, (988), 983 states have call predecessors, (988), 988 states have call successors, (988) [2023-12-23 05:39:18,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3812 states to 3812 states and 6244 transitions. [2023-12-23 05:39:18,158 INFO L78 Accepts]: Start accepts. Automaton has 3812 states and 6244 transitions. Word has length 651 [2023-12-23 05:39:18,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:39:18,158 INFO L495 AbstractCegarLoop]: Abstraction has 3812 states and 6244 transitions. [2023-12-23 05:39:18,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:39:18,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3812 states and 6244 transitions. [2023-12-23 05:39:18,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2023-12-23 05:39:18,176 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:39:18,176 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:39:18,214 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 (17)] Forceful destruction successful, exit code 0 [2023-12-23 05:39:18,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (18)] Forceful destruction successful, exit code 0 [2023-12-23 05:39:18,597 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /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=3,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-23 05:39:18,597 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:39:18,597 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:39:18,598 INFO L85 PathProgramCache]: Analyzing trace with hash 1328026194, now seen corresponding path program 1 times [2023-12-23 05:39:18,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:39:18,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [213037664] [2023-12-23 05:39:18,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:39:18,599 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 05:39:18,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:39:18,604 INFO L229 MonitoredProcess]: Starting monitored process 19 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 05:39:18,629 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 (19)] Waiting until timeout for monitored process [2023-12-23 05:39:19,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:39:19,969 INFO L262 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:39:19,974 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:39:20,469 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 8886 proven. 90 refuted. 0 times theorem prover too weak. 12036 trivial. 0 not checked. [2023-12-23 05:39:20,469 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:39:20,601 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:39:20,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [213037664] [2023-12-23 05:39:20,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [213037664] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:39:20,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [443091998] [2023-12-23 05:39:20,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:39:20,602 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:39:20,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:39:20,603 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:39:20,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Waiting until timeout for monitored process [2023-12-23 05:39:24,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:39:24,528 INFO L262 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 05:39:24,534 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:39:25,937 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 05:39:25,938 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:39:25,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [443091998] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:39:25,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-23 05:39:25,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-23 05:39:25,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768436496] [2023-12-23 05:39:25,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:39:25,939 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-23 05:39:25,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:39:25,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-23 05:39:25,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-12-23 05:39:25,940 INFO L87 Difference]: Start difference. First operand 3812 states and 6244 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:39:29,998 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.62s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:39:30,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:39:30,457 INFO L93 Difference]: Finished difference Result 11234 states and 18411 transitions. [2023-12-23 05:39:30,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 05:39:30,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 651 [2023-12-23 05:39:30,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:39:30,481 INFO L225 Difference]: With dead ends: 11234 [2023-12-23 05:39:30,482 INFO L226 Difference]: Without dead ends: 7560 [2023-12-23 05:39:30,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1382 GetRequests, 1375 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-23 05:39:30,490 INFO L413 NwaCegarLoop]: 493 mSDtfsCounter, 438 mSDsluCounter, 972 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 207 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 438 SdHoareTripleChecker+Valid, 1465 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 207 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-12-23 05:39:30,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [438 Valid, 1465 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [207 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-12-23 05:39:30,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7560 states. [2023-12-23 05:39:31,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7560 to 7484. [2023-12-23 05:39:31,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7484 states, 5490 states have (on average 1.5420765027322405) internal successors, (8466), 5499 states have internal predecessors, (8466), 1900 states have call successors, (1900), 93 states have call predecessors, (1900), 93 states have return successors, (1900), 1891 states have call predecessors, (1900), 1900 states have call successors, (1900) [2023-12-23 05:39:31,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7484 states to 7484 states and 12266 transitions. [2023-12-23 05:39:31,224 INFO L78 Accepts]: Start accepts. Automaton has 7484 states and 12266 transitions. Word has length 651 [2023-12-23 05:39:31,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:39:31,225 INFO L495 AbstractCegarLoop]: Abstraction has 7484 states and 12266 transitions. [2023-12-23 05:39:31,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 3 states have internal predecessors, (139), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:39:31,225 INFO L276 IsEmpty]: Start isEmpty. Operand 7484 states and 12266 transitions. [2023-12-23 05:39:31,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 653 [2023-12-23 05:39:31,229 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:39:31,229 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:39:31,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (20)] Ended with exit code 0 [2023-12-23 05:39:31,483 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 (19)] Ended with exit code 0 [2023-12-23 05:39:31,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,19 /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 05:39:31,649 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:39:31,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:39:31,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1827085460, now seen corresponding path program 1 times [2023-12-23 05:39:31,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:39:31,651 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2135153832] [2023-12-23 05:39:31,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:39:31,651 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 05:39:31,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:39:31,669 INFO L229 MonitoredProcess]: Starting monitored process 21 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 05:39:31,676 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (21)] Waiting until timeout for monitored process [2023-12-23 05:39:32,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:39:32,935 INFO L262 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:39:32,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:39:33,593 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 8886 proven. 90 refuted. 0 times theorem prover too weak. 12036 trivial. 0 not checked. [2023-12-23 05:39:33,593 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:39:33,700 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:39:33,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2135153832] [2023-12-23 05:39:33,701 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2135153832] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:39:33,701 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [277702911] [2023-12-23 05:39:33,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:39:33,701 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-23 05:39:33,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-23 05:39:33,702 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-23 05:39:33,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Waiting until timeout for monitored process [2023-12-23 05:39:38,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:39:38,253 INFO L262 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 05:39:38,259 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:39:38,797 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 8886 proven. 90 refuted. 0 times theorem prover too weak. 12036 trivial. 0 not checked. [2023-12-23 05:39:38,797 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:39:38,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [277702911] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-23 05:39:38,899 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:39:38,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-12-23 05:39:38,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905621785] [2023-12-23 05:39:38,899 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:39:38,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 05:39:38,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:39:38,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 05:39:38,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-23 05:39:38,901 INFO L87 Difference]: Start difference. First operand 7484 states and 12266 transitions. Second operand has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (103), 2 states have call predecessors, (103), 3 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2023-12-23 05:39:41,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:39:41,031 INFO L93 Difference]: Finished difference Result 15052 states and 24528 transitions. [2023-12-23 05:39:41,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-23 05:39:41,034 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (103), 2 states have call predecessors, (103), 3 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) Word has length 652 [2023-12-23 05:39:41,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:39:41,052 INFO L225 Difference]: With dead ends: 15052 [2023-12-23 05:39:41,053 INFO L226 Difference]: Without dead ends: 7706 [2023-12-23 05:39:41,066 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1471 GetRequests, 1463 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-23 05:39:41,067 INFO L413 NwaCegarLoop]: 378 mSDtfsCounter, 312 mSDsluCounter, 550 mSDsCounter, 0 mSdLazyCounter, 509 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 384 SdHoareTripleChecker+Valid, 928 SdHoareTripleChecker+Invalid, 546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 509 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-23 05:39:41,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [384 Valid, 928 Invalid, 546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 509 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-23 05:39:41,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7706 states. [2023-12-23 05:39:41,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7706 to 7552. [2023-12-23 05:39:41,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7552 states, 5541 states have (on average 1.5298682548276485) internal successors, (8477), 5550 states have internal predecessors, (8477), 1900 states have call successors, (1900), 110 states have call predecessors, (1900), 110 states have return successors, (1900), 1891 states have call predecessors, (1900), 1900 states have call successors, (1900) [2023-12-23 05:39:41,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7552 states to 7552 states and 12277 transitions. [2023-12-23 05:39:41,774 INFO L78 Accepts]: Start accepts. Automaton has 7552 states and 12277 transitions. Word has length 652 [2023-12-23 05:39:41,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:39:41,774 INFO L495 AbstractCegarLoop]: Abstraction has 7552 states and 12277 transitions. [2023-12-23 05:39:41,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.2) internal successors, (146), 5 states have internal predecessors, (146), 2 states have call successors, (103), 2 states have call predecessors, (103), 3 states have return successors, (103), 2 states have call predecessors, (103), 2 states have call successors, (103) [2023-12-23 05:39:41,774 INFO L276 IsEmpty]: Start isEmpty. Operand 7552 states and 12277 transitions. [2023-12-23 05:39:41,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2023-12-23 05:39:41,779 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:39:41,779 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:39:41,805 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (22)] Forceful destruction successful, exit code 0 [2023-12-23 05:39:42,031 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 (21)] Forceful destruction successful, exit code 0 [2023-12-23 05:39:42,192 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,21 /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 05:39:42,192 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:39:42,193 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:39:42,193 INFO L85 PathProgramCache]: Analyzing trace with hash 292780716, now seen corresponding path program 1 times [2023-12-23 05:39:42,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:39:42,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [352406916] [2023-12-23 05:39:42,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:39:42,194 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 05:39:42,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:39:42,196 INFO L229 MonitoredProcess]: Starting monitored process 23 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 05:39:42,238 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 (23)] Waiting until timeout for monitored process [2023-12-23 05:39:43,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:39:43,512 INFO L262 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-23 05:39:43,517 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:39:43,554 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 21012 trivial. 0 not checked. [2023-12-23 05:39:43,554 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 05:39:43,555 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:39:43,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [352406916] [2023-12-23 05:39:43,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [352406916] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 05:39:43,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 05:39:43,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-23 05:39:43,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239743354] [2023-12-23 05:39:43,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 05:39:43,556 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 05:39:43,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:39:43,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 05:39:43,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 05:39:43,557 INFO L87 Difference]: Start difference. First operand 7552 states and 12277 transitions. Second operand has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:39:45,464 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:39:46,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:39:46,676 INFO L93 Difference]: Finished difference Result 20160 states and 32802 transitions. [2023-12-23 05:39:46,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 05:39:46,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) Word has length 653 [2023-12-23 05:39:46,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:39:46,760 INFO L225 Difference]: With dead ends: 20160 [2023-12-23 05:39:46,760 INFO L226 Difference]: Without dead ends: 12750 [2023-12-23 05:39:46,777 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 652 GetRequests, 651 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 05:39:46,777 INFO L413 NwaCegarLoop]: 571 mSDtfsCounter, 315 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 1047 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2023-12-23 05:39:46,778 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 1047 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2023-12-23 05:39:46,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12750 states. [2023-12-23 05:39:48,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12750 to 12732. [2023-12-23 05:39:48,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12732 states, 9272 states have (on average 1.5263157894736843) internal successors, (14152), 9305 states have internal predecessors, (14152), 3260 states have call successors, (3260), 199 states have call predecessors, (3260), 199 states have return successors, (3260), 3227 states have call predecessors, (3260), 3260 states have call successors, (3260) [2023-12-23 05:39:48,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12732 states to 12732 states and 20672 transitions. [2023-12-23 05:39:48,118 INFO L78 Accepts]: Start accepts. Automaton has 12732 states and 20672 transitions. Word has length 653 [2023-12-23 05:39:48,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:39:48,119 INFO L495 AbstractCegarLoop]: Abstraction has 12732 states and 20672 transitions. [2023-12-23 05:39:48,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.0) internal successors, (141), 3 states have internal predecessors, (141), 1 states have call successors, (103), 1 states have call predecessors, (103), 1 states have return successors, (103), 1 states have call predecessors, (103), 1 states have call successors, (103) [2023-12-23 05:39:48,119 INFO L276 IsEmpty]: Start isEmpty. Operand 12732 states and 20672 transitions. [2023-12-23 05:39:48,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2023-12-23 05:39:48,125 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:39:48,125 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:39:48,165 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 (23)] Forceful destruction successful, exit code 0 [2023-12-23 05:39:48,352 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /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 05:39:48,353 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:39:48,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:39:48,353 INFO L85 PathProgramCache]: Analyzing trace with hash -188299542, now seen corresponding path program 1 times [2023-12-23 05:39:48,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:39:48,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1145631526] [2023-12-23 05:39:48,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:39:48,354 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 05:39:48,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:39:48,355 INFO L229 MonitoredProcess]: Starting monitored process 24 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 05:39:48,390 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 (24)] Waiting until timeout for monitored process [2023-12-23 05:39:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:39:49,728 INFO L262 TraceCheckSpWp]: Trace formula consists of 1058 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:39:49,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:39:50,087 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 7068 proven. 63 refuted. 0 times theorem prover too weak. 13881 trivial. 0 not checked. [2023-12-23 05:39:50,088 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:39:50,487 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 243 proven. 63 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2023-12-23 05:39:50,488 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:39:50,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1145631526] [2023-12-23 05:39:50,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1145631526] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:39:50,488 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:39:50,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 05:39:50,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301074046] [2023-12-23 05:39:50,488 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:39:50,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 05:39:50,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:39:50,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 05:39:50,491 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:39:50,491 INFO L87 Difference]: Start difference. First operand 12732 states and 20672 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2023-12-23 05:39:52,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:39:52,469 INFO L93 Difference]: Finished difference Result 25682 states and 41477 transitions. [2023-12-23 05:39:52,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 05:39:52,472 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 653 [2023-12-23 05:39:52,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:39:52,554 INFO L225 Difference]: With dead ends: 25682 [2023-12-23 05:39:52,555 INFO L226 Difference]: Without dead ends: 13096 [2023-12-23 05:39:52,584 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1308 GetRequests, 1298 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 05:39:52,584 INFO L413 NwaCegarLoop]: 376 mSDtfsCounter, 303 mSDsluCounter, 544 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 920 SdHoareTripleChecker+Invalid, 554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-23 05:39:52,584 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 920 Invalid, 554 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-23 05:39:52,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13096 states. [2023-12-23 05:39:53,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13096 to 12796. [2023-12-23 05:39:53,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12796 states, 9320 states have (on average 1.5030042918454936) internal successors, (14008), 9353 states have internal predecessors, (14008), 3260 states have call successors, (3260), 215 states have call predecessors, (3260), 215 states have return successors, (3260), 3227 states have call predecessors, (3260), 3260 states have call successors, (3260) [2023-12-23 05:39:53,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12796 states to 12796 states and 20528 transitions. [2023-12-23 05:39:53,834 INFO L78 Accepts]: Start accepts. Automaton has 12796 states and 20528 transitions. Word has length 653 [2023-12-23 05:39:53,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:39:53,835 INFO L495 AbstractCegarLoop]: Abstraction has 12796 states and 20528 transitions. [2023-12-23 05:39:53,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2023-12-23 05:39:53,835 INFO L276 IsEmpty]: Start isEmpty. Operand 12796 states and 20528 transitions. [2023-12-23 05:39:53,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2023-12-23 05:39:53,841 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:39:53,842 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:39:53,896 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 (24)] Forceful destruction successful, exit code 0 [2023-12-23 05:39:54,068 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /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 05:39:54,069 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:39:54,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:39:54,069 INFO L85 PathProgramCache]: Analyzing trace with hash 1197903852, now seen corresponding path program 1 times [2023-12-23 05:39:54,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:39:54,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702272144] [2023-12-23 05:39:54,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:39:54,071 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 05:39:54,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:39:54,072 INFO L229 MonitoredProcess]: Starting monitored process 25 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 05:39:54,106 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 (25)] Waiting until timeout for monitored process [2023-12-23 05:39:55,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:39:55,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 1056 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-23 05:39:55,557 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:39:55,897 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 7068 proven. 63 refuted. 0 times theorem prover too weak. 13881 trivial. 0 not checked. [2023-12-23 05:39:55,897 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:39:56,364 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 243 proven. 63 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2023-12-23 05:39:56,364 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:39:56,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1702272144] [2023-12-23 05:39:56,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1702272144] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:39:56,365 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:39:56,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-23 05:39:56,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102559262] [2023-12-23 05:39:56,367 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:39:56,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-23 05:39:56,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:39:56,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-23 05:39:56,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-23 05:39:56,368 INFO L87 Difference]: Start difference. First operand 12796 states and 20528 transitions. Second operand has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2023-12-23 05:40:00,139 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.23s for a HTC check with result INVALID. Formula has sorts [Bool, FloatingPoint, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [] [2023-12-23 05:40:03,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:40:03,706 INFO L93 Difference]: Finished difference Result 38684 states and 61742 transitions. [2023-12-23 05:40:03,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-23 05:40:03,706 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) Word has length 653 [2023-12-23 05:40:03,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:40:03,809 INFO L225 Difference]: With dead ends: 38684 [2023-12-23 05:40:03,809 INFO L226 Difference]: Without dead ends: 26034 [2023-12-23 05:40:03,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1316 GetRequests, 1298 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-23 05:40:03,841 INFO L413 NwaCegarLoop]: 625 mSDtfsCounter, 1079 mSDsluCounter, 1204 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 402 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1161 SdHoareTripleChecker+Valid, 1829 SdHoareTripleChecker+Invalid, 1528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 402 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2023-12-23 05:40:03,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1161 Valid, 1829 Invalid, 1528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [402 Valid, 1126 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2023-12-23 05:40:03,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26034 states. [2023-12-23 05:40:05,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26034 to 16684. [2023-12-23 05:40:05,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16684 states, 13208 states have (on average 1.5548152634766808) internal successors, (20536), 13241 states have internal predecessors, (20536), 3260 states have call successors, (3260), 215 states have call predecessors, (3260), 215 states have return successors, (3260), 3227 states have call predecessors, (3260), 3260 states have call successors, (3260) [2023-12-23 05:40:05,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16684 states to 16684 states and 27056 transitions. [2023-12-23 05:40:05,642 INFO L78 Accepts]: Start accepts. Automaton has 16684 states and 27056 transitions. Word has length 653 [2023-12-23 05:40:05,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:40:05,642 INFO L495 AbstractCegarLoop]: Abstraction has 16684 states and 27056 transitions. [2023-12-23 05:40:05,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 18.75) internal successors, (150), 8 states have internal predecessors, (150), 2 states have call successors, (124), 2 states have call predecessors, (124), 4 states have return successors, (125), 2 states have call predecessors, (125), 2 states have call successors, (125) [2023-12-23 05:40:05,643 INFO L276 IsEmpty]: Start isEmpty. Operand 16684 states and 27056 transitions. [2023-12-23 05:40:05,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2023-12-23 05:40:05,649 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:40:05,650 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:40:05,694 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 (25)] Forceful destruction successful, exit code 0 [2023-12-23 05:40:05,868 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /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 05:40:05,869 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:40:05,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:40:05,869 INFO L85 PathProgramCache]: Analyzing trace with hash 1063890346, now seen corresponding path program 1 times [2023-12-23 05:40:05,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:40:05,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1791126706] [2023-12-23 05:40:05,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:40:05,870 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 05:40:05,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:40:05,872 INFO L229 MonitoredProcess]: Starting monitored process 26 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 05:40:05,873 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 (26)] Waiting until timeout for monitored process [2023-12-23 05:40:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:40:07,294 INFO L262 TraceCheckSpWp]: Trace formula consists of 1055 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 05:40:07,300 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:40:08,501 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 10578 proven. 144 refuted. 0 times theorem prover too weak. 10290 trivial. 0 not checked. [2023-12-23 05:40:08,502 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-23 05:40:09,159 INFO L134 CoverageAnalysis]: Checked inductivity of 21012 backedges. 162 proven. 144 refuted. 0 times theorem prover too weak. 20706 trivial. 0 not checked. [2023-12-23 05:40:09,159 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 05:40:09,159 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1791126706] [2023-12-23 05:40:09,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1791126706] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-23 05:40:09,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-23 05:40:09,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2023-12-23 05:40:09,160 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [103051938] [2023-12-23 05:40:09,160 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-23 05:40:09,160 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-12-23 05:40:09,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 05:40:09,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-12-23 05:40:09,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 05:40:09,161 INFO L87 Difference]: Start difference. First operand 16684 states and 27056 transitions. Second operand has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 2 states have call successors, (151), 2 states have call predecessors, (151), 4 states have return successors, (152), 2 states have call predecessors, (152), 2 states have call successors, (152) [2023-12-23 05:40:12,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 05:40:12,950 INFO L93 Difference]: Finished difference Result 33720 states and 54362 transitions. [2023-12-23 05:40:12,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-23 05:40:12,953 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 2 states have call successors, (151), 2 states have call predecessors, (151), 4 states have return successors, (152), 2 states have call predecessors, (152), 2 states have call successors, (152) Word has length 653 [2023-12-23 05:40:12,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 05:40:13,019 INFO L225 Difference]: With dead ends: 33720 [2023-12-23 05:40:13,020 INFO L226 Difference]: Without dead ends: 17182 [2023-12-23 05:40:13,060 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1308 GetRequests, 1298 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2023-12-23 05:40:13,067 INFO L413 NwaCegarLoop]: 373 mSDtfsCounter, 432 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 515 mSolverCounterSat, 146 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 485 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 661 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 146 IncrementalHoareTripleChecker+Valid, 515 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2023-12-23 05:40:13,067 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [485 Valid, 910 Invalid, 661 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [146 Valid, 515 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2023-12-23 05:40:13,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17182 states. [2023-12-23 05:40:14,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17182 to 16816. [2023-12-23 05:40:14,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16816 states, 13307 states have (on average 1.5470804839558128) internal successors, (20587), 13340 states have internal predecessors, (20587), 3260 states have call successors, (3260), 248 states have call predecessors, (3260), 248 states have return successors, (3260), 3227 states have call predecessors, (3260), 3260 states have call successors, (3260) [2023-12-23 05:40:14,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16816 states to 16816 states and 27107 transitions. [2023-12-23 05:40:14,501 INFO L78 Accepts]: Start accepts. Automaton has 16816 states and 27107 transitions. Word has length 653 [2023-12-23 05:40:14,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 05:40:14,502 INFO L495 AbstractCegarLoop]: Abstraction has 16816 states and 27107 transitions. [2023-12-23 05:40:14,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 21.428571428571427) internal successors, (150), 7 states have internal predecessors, (150), 2 states have call successors, (151), 2 states have call predecessors, (151), 4 states have return successors, (152), 2 states have call predecessors, (152), 2 states have call successors, (152) [2023-12-23 05:40:14,503 INFO L276 IsEmpty]: Start isEmpty. Operand 16816 states and 27107 transitions. [2023-12-23 05:40:14,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 654 [2023-12-23 05:40:14,509 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 05:40:14,510 INFO L195 NwaCegarLoop]: trace histogram [103, 103, 103, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 05:40:14,549 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 (26)] Forceful destruction successful, exit code 0 [2023-12-23 05:40:14,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /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 05:40:14,726 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 05:40:14,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 05:40:14,726 INFO L85 PathProgramCache]: Analyzing trace with hash -215973332, now seen corresponding path program 1 times [2023-12-23 05:40:14,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 05:40:14,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [872492943] [2023-12-23 05:40:14,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 05:40:14,727 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 05:40:14,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 05:40:14,734 INFO L229 MonitoredProcess]: Starting monitored process 27 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 05:40:14,735 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 (27)] Waiting until timeout for monitored process [2023-12-23 05:40:16,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 05:40:16,867 INFO L262 TraceCheckSpWp]: Trace formula consists of 1054 conjuncts, 16 conjunts are in the unsatisfiable core [2023-12-23 05:40:16,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 05:41:56,296 WARN L293 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:42:04,364 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:42:23,265 WARN L293 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:42:31,332 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:42:36,668 WARN L293 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:42:46,363 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:42:56,328 WARN L293 SmtUtils]: Spent 6.59s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:43:07,385 WARN L293 SmtUtils]: Spent 6.37s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:43:15,508 WARN L293 SmtUtils]: Spent 5.07s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:43:23,787 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:43:41,683 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:43:49,748 WARN L293 SmtUtils]: Spent 8.06s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:44:15,523 WARN L293 SmtUtils]: Spent 6.99s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:44:30,489 WARN L293 SmtUtils]: Spent 5.64s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:44:38,557 WARN L293 SmtUtils]: Spent 8.07s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:44:53,386 WARN L293 SmtUtils]: Spent 5.36s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:45:49,872 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 ((_ to_fp 8 24) c_currentRoundingMode (/ 1.0 100000000000000000000.0)))) (and (fp.leq c_~var_1_51~0 ((_ to_fp 11 53) c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode 4611686018427382800.0))) (fp.geq c_~var_1_51~0 ((_ to_fp 11 53) c_currentRoundingMode .cse0)) (= c_~var_1_33~0 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 5.0 2.0)))) (let ((.cse4 ((_ to_fp 8 24) c_currentRoundingMode 9223372036854765600.0)) (.cse7 ((_ to_fp 8 24) c_currentRoundingMode ((_ to_fp 11 53) c_currentRoundingMode (/ 259.0 4.0)))) (.cse2 (fp.mul c_currentRoundingMode ((_ to_fp 8 24) c_currentRoundingMode (/ 4999999999999983.0 50.0)) c_~var_1_38~0)) (.cse5 ((_ to_fp 8 24) c_currentRoundingMode (_ bv0 32))) (.cse3 ((_ to_fp 8 24) c_currentRoundingMode (/ 29.0 4.0)))) (let ((.cse6 (exists ((~var_1_40~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_40~0 .cse0) (fp.leq ~var_1_40~0 .cse4) (exists ((~var_1_39~0 (_ FloatingPoint 8 24))) (let ((.cse9 (fp.sub c_currentRoundingMode ~var_1_39~0 ~var_1_40~0))) (and (not (fp.geq ~var_1_39~0 .cse7)) (not (fp.lt (fp.mul c_currentRoundingMode ~var_1_40~0 ~var_1_39~0) .cse2)) (fp.lt .cse9 .cse5) (= (fp.neg .cse9) c_~var_1_38~0) (fp.gt ~var_1_39~0 .cse3)))))))) (or (exists ((~var_1_40~0 (_ FloatingPoint 8 24)) (~var_1_39~0 (_ FloatingPoint 8 24))) (let ((.cse1 (fp.sub c_currentRoundingMode .cse3 ~var_1_40~0))) (and (= .cse1 c_~var_1_38~0) (not (fp.lt (fp.mul c_currentRoundingMode ~var_1_40~0 ~var_1_39~0) .cse2)) (fp.geq ~var_1_39~0 .cse0) (not (fp.gt ~var_1_39~0 .cse3)) (fp.leq ~var_1_40~0 .cse4) (not (fp.lt .cse1 .cse5))))) .cse6 (and (or .cse6 (exists ((~var_1_40~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_40~0 .cse0) (fp.leq ~var_1_40~0 .cse4) (exists ((~var_1_39~0 (_ FloatingPoint 8 24))) (and (not (fp.geq ~var_1_39~0 .cse7)) (not (fp.lt (fp.mul c_currentRoundingMode ~var_1_40~0 ~var_1_39~0) .cse2)) (= (fp.sub c_currentRoundingMode ~var_1_39~0 ~var_1_40~0) c_~var_1_38~0) (fp.gt ~var_1_39~0 .cse3)))))) (not (fp.lt c_~var_1_38~0 .cse5))) (exists ((~var_1_40~0 (_ FloatingPoint 8 24))) (and (fp.geq ~var_1_40~0 .cse0) (fp.leq ~var_1_40~0 .cse4) (exists ((~var_1_39~0 (_ FloatingPoint 8 24))) (let ((.cse8 (fp.sub c_currentRoundingMode ~var_1_39~0 ~var_1_40~0))) (and (not (fp.geq ~var_1_39~0 .cse7)) (not (fp.lt (fp.mul c_currentRoundingMode ~var_1_40~0 ~var_1_39~0) .cse2)) (= .cse8 c_~var_1_38~0) (not (fp.lt .cse8 .cse5)) (fp.gt ~var_1_39~0 .cse3))))))))) (= c_currentRoundingMode roundNearestTiesToEven))) is different from false [2023-12-23 05:45:55,434 WARN L293 SmtUtils]: Spent 5.53s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:46:01,748 WARN L293 SmtUtils]: Spent 6.31s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:46:09,831 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:46:15,280 WARN L293 SmtUtils]: Spent 5.45s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:46:20,663 WARN L293 SmtUtils]: Spent 5.38s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:46:36,100 WARN L293 SmtUtils]: Spent 6.00s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:46:41,120 WARN L293 SmtUtils]: Spent 5.02s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:46:46,213 WARN L293 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:46:53,054 WARN L293 SmtUtils]: Spent 6.84s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:47:01,144 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:47:16,733 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:47:21,918 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 8 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:47:32,063 WARN L293 SmtUtils]: Spent 5.77s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:47:37,304 WARN L293 SmtUtils]: Spent 5.24s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:47:42,373 WARN L293 SmtUtils]: Spent 5.06s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:47:48,036 WARN L293 SmtUtils]: Spent 5.66s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:47:53,050 WARN L293 SmtUtils]: Spent 5.01s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:48:03,447 WARN L293 SmtUtils]: Spent 5.99s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:48:09,426 WARN L293 SmtUtils]: Spent 5.98s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:48:15,181 WARN L293 SmtUtils]: Spent 5.67s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:48:21,100 WARN L293 SmtUtils]: Spent 5.92s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:48:29,188 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:48:35,125 WARN L293 SmtUtils]: Spent 5.94s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:48:46,293 WARN L293 SmtUtils]: Spent 6.19s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:48:57,390 WARN L293 SmtUtils]: Spent 7.45s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:49:07,678 WARN L293 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:49:20,663 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:49:26,543 WARN L293 SmtUtils]: Spent 5.88s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:49:31,721 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:49:46,170 WARN L293 SmtUtils]: Spent 5.28s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:49:53,365 WARN L293 SmtUtils]: Spent 7.19s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:49:58,549 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 6 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:50:12,371 WARN L293 SmtUtils]: Spent 5.95s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:50:17,689 WARN L293 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 9 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:50:28,033 WARN L293 SmtUtils]: Spent 5.58s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:50:34,690 WARN L293 SmtUtils]: Spent 6.59s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:50:40,022 WARN L293 SmtUtils]: Spent 5.33s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:50:48,112 WARN L293 SmtUtils]: Spent 8.09s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:50:53,871 WARN L293 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:51:04,326 WARN L293 SmtUtils]: Spent 5.70s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:51:14,175 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:51:25,026 WARN L293 SmtUtils]: Spent 5.97s on a formula simplification that was a NOOP. DAG size: 10 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:51:30,920 WARN L293 SmtUtils]: Spent 5.89s on a formula simplification that was a NOOP. DAG size: 7 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 05:51:39,004 WARN L293 SmtUtils]: Spent 8.08s on a formula simplification that was a NOOP. DAG size: 5 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-23 05:51:39,437 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 05:51:39,473 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 (27)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-23 05:51:40,523 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 (27)] Forceful destruction successful, exit code 0 [2023-12-23 05:51:40,638 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-23 05:51:40,684 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-23 05:51:40,686 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-23 05:51:40,687 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 654 with TraceHistMax 103,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-23 05:51:40,692 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 05:51:40,693 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-23 05:51:40,695 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.12 05:51:40 BoogieIcfgContainer [2023-12-23 05:51:40,695 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-23 05:51:40,695 INFO L158 Benchmark]: Toolchain (without parser) took 869592.41ms. Allocated memory was 290.5MB in the beginning and 2.4GB in the end (delta: 2.1GB). Free memory was 237.0MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 758.1MB. Max. memory is 8.0GB. [2023-12-23 05:51:40,695 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 192.9MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-23 05:51:40,695 INFO L158 Benchmark]: CACSL2BoogieTranslator took 400.91ms. Allocated memory is still 290.5MB. Free memory was 236.7MB in the beginning and 206.5MB in the end (delta: 30.1MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-23 05:51:40,695 INFO L158 Benchmark]: Boogie Procedure Inliner took 60.04ms. Allocated memory is still 290.5MB. Free memory was 206.5MB in the beginning and 200.7MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-23 05:51:40,696 INFO L158 Benchmark]: Boogie Preprocessor took 83.90ms. Allocated memory is still 290.5MB. Free memory was 200.7MB in the beginning and 191.9MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2023-12-23 05:51:40,696 INFO L158 Benchmark]: RCFGBuilder took 37137.98ms. Allocated memory is still 290.5MB. Free memory was 191.6MB in the beginning and 181.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. [2023-12-23 05:51:40,696 INFO L158 Benchmark]: TraceAbstraction took 831903.73ms. Allocated memory was 290.5MB in the beginning and 2.4GB in the end (delta: 2.1GB). Free memory was 180.5MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 701.3MB. Max. memory is 8.0GB. [2023-12-23 05:51:40,697 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 192.9MB. Free memory is still 142.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 400.91ms. Allocated memory is still 290.5MB. Free memory was 236.7MB in the beginning and 206.5MB in the end (delta: 30.1MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 60.04ms. Allocated memory is still 290.5MB. Free memory was 206.5MB in the beginning and 200.7MB in the end (delta: 5.8MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 83.90ms. Allocated memory is still 290.5MB. Free memory was 200.7MB in the beginning and 191.9MB in the end (delta: 8.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * RCFGBuilder took 37137.98ms. Allocated memory is still 290.5MB. Free memory was 191.6MB in the beginning and 181.5MB in the end (delta: 10.0MB). Peak memory consumption was 10.7MB. Max. memory is 8.0GB. * TraceAbstraction took 831903.73ms. Allocated memory was 290.5MB in the beginning and 2.4GB in the end (delta: 2.1GB). Free memory was 180.5MB in the beginning and 1.6GB in the end (delta: -1.4GB). Peak memory consumption was 701.3MB. 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 654 with TraceHistMax 103,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 292 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 831.8s, OverallIterations: 18, TraceHistogramMax: 103, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 63.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 7166 SdHoareTripleChecker+Valid, 53.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6772 mSDsluCounter, 19399 SdHoareTripleChecker+Invalid, 51.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10569 mSDsCounter, 1530 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5298 IncrementalHoareTripleChecker+Invalid, 6829 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1530 mSolverCounterUnsat, 8830 mSDtfsCounter, 5298 mSolverCounterSat, 0.2s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 20268 GetRequests, 20152 SyntacticMatches, 5 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16816occurred in iteration=17, InterpolantAutomatonStates: 104, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 8.6s AutomataMinimizationTime, 17 MinimizatonAttempts, 14399 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.5s SsaConstructionTime, 37.6s SatisfiabilityAnalysisTime, 27.2s InterpolantComputationTime, 16269 NumberOfCodeBlocks, 16269 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 19496 ConstructedInterpolants, 59 QuantifiedInterpolants, 42990 SizeOfPredicates, 52 NumberOfNonLiveVariables, 26407 ConjunctsInSsa, 85 ConjunctsInUnsatCore, 30 InterpolantComputations, 11 PerfectInterpolantSequences, 628428/630360 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