/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-250_file-39.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:04:50,167 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:04:50,242 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 11:04:50,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:04:50,246 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:04:50,268 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:04:50,269 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:04:50,269 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:04:50,270 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:04:50,272 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:04:50,273 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:04:50,273 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:04:50,273 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:04:50,274 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:04:50,275 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:04:50,275 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:04:50,275 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:04:50,275 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:04:50,275 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:04:50,275 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:04:50,276 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:04:50,276 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:04:50,276 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:04:50,276 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:04:50,276 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:04:50,276 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:04:50,277 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:04:50,277 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:04:50,277 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:04:50,277 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:04:50,278 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:04:50,278 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:04:50,278 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:04:50,278 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:04:50,278 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:04:50,278 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:04:50,278 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:04:50,279 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:04:50,279 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:04:50,279 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:04:50,279 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:04:50,279 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:04:50,279 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:04:50,279 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:04:50,280 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:04:50,280 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:04:50,280 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:04:50,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:04:50,462 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:04:50,464 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:04:50,464 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:04:50,465 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:04:50,466 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-39.i [2023-12-16 11:04:51,655 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:04:51,868 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:04:51,868 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-39.i [2023-12-16 11:04:51,879 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149e5d0b9/bad906a9cb33433a928cb29fa9c9ec33/FLAGa1f6590ad [2023-12-16 11:04:51,897 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/149e5d0b9/bad906a9cb33433a928cb29fa9c9ec33 [2023-12-16 11:04:51,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:04:51,899 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:04:51,900 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:04:51,900 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:04:51,903 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:04:51,904 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:04:51" (1/1) ... [2023-12-16 11:04:51,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b73339c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:51, skipping insertion in model container [2023-12-16 11:04:51,905 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:04:51" (1/1) ... [2023-12-16 11:04:51,936 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:04:52,079 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-250_file-39.i[916,929] [2023-12-16 11:04:52,240 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:04:52,261 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:04:52,274 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-250_file-39.i[916,929] [2023-12-16 11:04:52,340 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:04:52,354 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:04:52,354 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52 WrapperNode [2023-12-16 11:04:52,354 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:04:52,355 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:04:52,355 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:04:52,355 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:04:52,359 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52" (1/1) ... [2023-12-16 11:04:52,374 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52" (1/1) ... [2023-12-16 11:04:52,404 INFO L138 Inliner]: procedures = 27, calls = 88, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 450 [2023-12-16 11:04:52,405 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:04:52,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:04:52,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:04:52,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:04:52,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52" (1/1) ... [2023-12-16 11:04:52,414 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52" (1/1) ... [2023-12-16 11:04:52,427 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52" (1/1) ... [2023-12-16 11:04:52,443 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]. [2023-12-16 11:04:52,443 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52" (1/1) ... [2023-12-16 11:04:52,444 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52" (1/1) ... [2023-12-16 11:04:52,467 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52" (1/1) ... [2023-12-16 11:04:52,471 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52" (1/1) ... [2023-12-16 11:04:52,486 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52" (1/1) ... [2023-12-16 11:04:52,489 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52" (1/1) ... [2023-12-16 11:04:52,493 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:04:52,493 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:04:52,493 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:04:52,494 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:04:52,494 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52" (1/1) ... [2023-12-16 11:04:52,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:04:52,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:04:52,564 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) [2023-12-16 11:04:52,580 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 [2023-12-16 11:04:52,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:04:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:04:52,597 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:04:52,598 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:04:52,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:04:52,598 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:04:52,691 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:04:52,693 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:05:07,694 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:05:07,727 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:05:07,728 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:05:07,728 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:05:07 BoogieIcfgContainer [2023-12-16 11:05:07,728 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:05:07,730 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:05:07,730 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:05:07,732 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:05:07,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:04:51" (1/3) ... [2023-12-16 11:05:07,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6d3e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:05:07, skipping insertion in model container [2023-12-16 11:05:07,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:04:52" (2/3) ... [2023-12-16 11:05:07,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6d3e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:05:07, skipping insertion in model container [2023-12-16 11:05:07,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:05:07" (3/3) ... [2023-12-16 11:05:07,734 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-39.i [2023-12-16 11:05:07,746 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:05:07,747 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:05:07,813 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:05:07,820 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;@103f9ebf, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:05:07,820 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:05:07,826 INFO L276 IsEmpty]: Start isEmpty. Operand has 193 states, 115 states have (on average 1.5130434782608695) internal successors, (174), 116 states have internal predecessors, (174), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-16 11:05:07,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2023-12-16 11:05:07,866 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:05:07,866 INFO L195 NwaCegarLoop]: trace histogram [75, 75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:05:07,867 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:05:07,870 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:05:07,871 INFO L85 PathProgramCache]: Analyzing trace with hash 537171929, now seen corresponding path program 1 times [2023-12-16 11:05:07,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:05:07,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1968397897] [2023-12-16 11:05:07,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:07,888 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 [2023-12-16 11:05:07,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:05:07,889 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) [2023-12-16 11:05:07,891 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 [2023-12-16 11:05:09,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:05:09,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:05:09,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:05:09,696 INFO L134 CoverageAnalysis]: Checked inductivity of 11100 backedges. 4948 proven. 0 refuted. 0 times theorem prover too weak. 6152 trivial. 0 not checked. [2023-12-16 11:05:09,696 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:05:09,697 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:05:09,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1968397897] [2023-12-16 11:05:09,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1968397897] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:05:09,698 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:05:09,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:05:09,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1192965571] [2023-12-16 11:05:09,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:05:09,704 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:05:09,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:05:09,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:05:09,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:05:09,728 INFO L87 Difference]: Start difference. First operand has 193 states, 115 states have (on average 1.5130434782608695) internal successors, (174), 116 states have internal predecessors, (174), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) Second operand has 2 states, 2 states have (on average 48.0) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2023-12-16 11:05:09,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:05:09,926 INFO L93 Difference]: Finished difference Result 382 states and 719 transitions. [2023-12-16 11:05:09,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:05:09,937 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 48.0) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 464 [2023-12-16 11:05:09,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:05:09,944 INFO L225 Difference]: With dead ends: 382 [2023-12-16 11:05:09,944 INFO L226 Difference]: Without dead ends: 190 [2023-12-16 11:05:09,949 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 463 GetRequests, 463 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:05:09,951 INFO L413 NwaCegarLoop]: 311 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 311 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 11:05:09,952 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 311 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 11:05:09,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2023-12-16 11:05:09,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2023-12-16 11:05:09,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 113 states have (on average 1.4513274336283186) internal successors, (164), 113 states have internal predecessors, (164), 75 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 75 states have call predecessors, (75), 75 states have call successors, (75) [2023-12-16 11:05:09,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 314 transitions. [2023-12-16 11:05:10,001 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 314 transitions. Word has length 464 [2023-12-16 11:05:10,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:05:10,001 INFO L495 AbstractCegarLoop]: Abstraction has 190 states and 314 transitions. [2023-12-16 11:05:10,002 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 48.0) internal successors, (96), 2 states have internal predecessors, (96), 2 states have call successors, (75), 2 states have call predecessors, (75), 2 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2023-12-16 11:05:10,002 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 314 transitions. [2023-12-16 11:05:10,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2023-12-16 11:05:10,011 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:05:10,011 INFO L195 NwaCegarLoop]: trace histogram [75, 75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:05:10,052 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-12-16 11:05:10,229 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 [2023-12-16 11:05:10,230 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:05:10,230 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:05:10,230 INFO L85 PathProgramCache]: Analyzing trace with hash 20426847, now seen corresponding path program 1 times [2023-12-16 11:05:10,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:05:10,232 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1725907792] [2023-12-16 11:05:10,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:10,232 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 [2023-12-16 11:05:10,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:05:10,234 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) [2023-12-16 11:05:10,235 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 [2023-12-16 11:05:11,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:05:11,807 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:05:11,825 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:05:18,582 INFO L134 CoverageAnalysis]: Checked inductivity of 11100 backedges. 2972 proven. 33 refuted. 0 times theorem prover too weak. 8095 trivial. 0 not checked. [2023-12-16 11:05:18,583 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:05:19,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:05:19,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1725907792] [2023-12-16 11:05:19,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1725907792] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:05:19,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [67725590] [2023-12-16 11:05:19,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:19,212 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:05:19,213 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:05:19,254 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:05:19,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 11:05:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:05:20,429 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:05:20,436 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:05:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 11100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11100 trivial. 0 not checked. [2023-12-16 11:05:20,758 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:05:20,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [67725590] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:05:20,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:05:20,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-16 11:05:20,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273666215] [2023-12-16 11:05:20,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:05:20,762 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:05:20,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:05:20,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:05:20,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:05:20,764 INFO L87 Difference]: Start difference. First operand 190 states and 314 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 1 states have call predecessors, (75), 1 states have call successors, (75) [2023-12-16 11:05:21,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:05:21,565 INFO L93 Difference]: Finished difference Result 474 states and 785 transitions. [2023-12-16 11:05:21,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:05:21,566 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 1 states have call predecessors, (75), 1 states have call successors, (75) Word has length 464 [2023-12-16 11:05:21,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:05:21,569 INFO L225 Difference]: With dead ends: 474 [2023-12-16 11:05:21,569 INFO L226 Difference]: Without dead ends: 285 [2023-12-16 11:05:21,570 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 972 GetRequests, 966 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:05:21,571 INFO L413 NwaCegarLoop]: 352 mSDtfsCounter, 133 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 650 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 11:05:21,571 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 650 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 11:05:21,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2023-12-16 11:05:21,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 282. [2023-12-16 11:05:21,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 188 states have (on average 1.5106382978723405) internal successors, (284), 189 states have internal predecessors, (284), 91 states have call successors, (91), 2 states have call predecessors, (91), 2 states have return successors, (91), 90 states have call predecessors, (91), 91 states have call successors, (91) [2023-12-16 11:05:21,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 466 transitions. [2023-12-16 11:05:21,600 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 466 transitions. Word has length 464 [2023-12-16 11:05:21,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:05:21,601 INFO L495 AbstractCegarLoop]: Abstraction has 282 states and 466 transitions. [2023-12-16 11:05:21,601 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 1 states have call predecessors, (75), 1 states have call successors, (75) [2023-12-16 11:05:21,601 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 466 transitions. [2023-12-16 11:05:21,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2023-12-16 11:05:21,604 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:05:21,604 INFO L195 NwaCegarLoop]: trace histogram [75, 75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:05:21,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2023-12-16 11:05:21,851 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 [2023-12-16 11:05:22,017 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt,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 [2023-12-16 11:05:22,018 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:05:22,018 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:05:22,018 INFO L85 PathProgramCache]: Analyzing trace with hash 1178651109, now seen corresponding path program 1 times [2023-12-16 11:05:22,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:05:22,019 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1396468376] [2023-12-16 11:05:22,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:22,019 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 [2023-12-16 11:05:22,020 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:05:22,031 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) [2023-12-16 11:05:22,052 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 [2023-12-16 11:05:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:05:23,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:05:23,721 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:05:30,266 INFO L134 CoverageAnalysis]: Checked inductivity of 11100 backedges. 2972 proven. 33 refuted. 0 times theorem prover too weak. 8095 trivial. 0 not checked. [2023-12-16 11:05:30,266 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:05:30,963 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:05:30,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1396468376] [2023-12-16 11:05:30,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1396468376] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:05:30,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1206499777] [2023-12-16 11:05:30,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:30,963 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:05:30,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:05:30,965 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:05:30,967 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Waiting until timeout for monitored process [2023-12-16 11:05:32,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:05:32,196 INFO L262 TraceCheckSpWp]: Trace formula consists of 745 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:05:32,202 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:05:32,384 INFO L134 CoverageAnalysis]: Checked inductivity of 11100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11100 trivial. 0 not checked. [2023-12-16 11:05:32,385 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:05:32,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1206499777] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:05:32,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:05:32,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2023-12-16 11:05:32,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056910451] [2023-12-16 11:05:32,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:05:32,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:05:32,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:05:32,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:05:32,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:05:32,389 INFO L87 Difference]: Start difference. First operand 282 states and 466 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 1 states have call predecessors, (75), 1 states have call successors, (75) [2023-12-16 11:05:33,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:05:33,031 INFO L93 Difference]: Finished difference Result 767 states and 1262 transitions. [2023-12-16 11:05:33,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:05:33,039 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 1 states have call predecessors, (75), 1 states have call successors, (75) Word has length 464 [2023-12-16 11:05:33,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:05:33,048 INFO L225 Difference]: With dead ends: 767 [2023-12-16 11:05:33,048 INFO L226 Difference]: Without dead ends: 486 [2023-12-16 11:05:33,049 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 972 GetRequests, 966 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:05:33,053 INFO L413 NwaCegarLoop]: 380 mSDtfsCounter, 197 mSDsluCounter, 300 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 680 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 11:05:33,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 680 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 11:05:33,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 486 states. [2023-12-16 11:05:33,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 486 to 483. [2023-12-16 11:05:33,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 483 states, 326 states have (on average 1.4938650306748467) internal successors, (487), 329 states have internal predecessors, (487), 152 states have call successors, (152), 4 states have call predecessors, (152), 4 states have return successors, (152), 149 states have call predecessors, (152), 152 states have call successors, (152) [2023-12-16 11:05:33,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 483 states to 483 states and 791 transitions. [2023-12-16 11:05:33,143 INFO L78 Accepts]: Start accepts. Automaton has 483 states and 791 transitions. Word has length 464 [2023-12-16 11:05:33,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:05:33,148 INFO L495 AbstractCegarLoop]: Abstraction has 483 states and 791 transitions. [2023-12-16 11:05:33,148 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 1 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 1 states have call predecessors, (75), 1 states have call successors, (75) [2023-12-16 11:05:33,149 INFO L276 IsEmpty]: Start isEmpty. Operand 483 states and 791 transitions. [2023-12-16 11:05:33,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 465 [2023-12-16 11:05:33,153 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:05:33,153 INFO L195 NwaCegarLoop]: trace histogram [75, 75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:05:33,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-16 11:05:33,368 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (6)] Ended with exit code 0 [2023-12-16 11:05:33,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt [2023-12-16 11:05:33,560 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:05:33,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:05:33,560 INFO L85 PathProgramCache]: Analyzing trace with hash 361002659, now seen corresponding path program 1 times [2023-12-16 11:05:33,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:05:33,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1602379661] [2023-12-16 11:05:33,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:33,561 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 [2023-12-16 11:05:33,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:05:33,563 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) [2023-12-16 11:05:33,564 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 [2023-12-16 11:05:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:05:35,207 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:05:35,214 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:05:41,723 INFO L134 CoverageAnalysis]: Checked inductivity of 11100 backedges. 2972 proven. 33 refuted. 0 times theorem prover too weak. 8095 trivial. 0 not checked. [2023-12-16 11:05:41,724 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:05:42,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:05:42,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1602379661] [2023-12-16 11:05:42,370 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1602379661] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:05:42,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [556402603] [2023-12-16 11:05:42,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:42,370 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:05:42,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:05:42,375 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) [2023-12-16 11:05:42,377 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Waiting until timeout for monitored process [2023-12-16 11:05:47,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:05:47,371 INFO L262 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 11:05:47,378 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:05:53,789 INFO L134 CoverageAnalysis]: Checked inductivity of 11100 backedges. 2972 proven. 33 refuted. 0 times theorem prover too weak. 8095 trivial. 0 not checked. [2023-12-16 11:05:53,790 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:05:54,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [556402603] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:05:54,242 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:05:54,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2023-12-16 11:05:54,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [131269739] [2023-12-16 11:05:54,242 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:05:54,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 11:05:54,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:05:54,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 11:05:54,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 11:05:54,244 INFO L87 Difference]: Start difference. First operand 483 states and 791 transitions. Second operand has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2023-12-16 11:05:58,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:05:58,072 INFO L93 Difference]: Finished difference Result 1455 states and 2378 transitions. [2023-12-16 11:05:58,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 11:05:58,076 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) Word has length 464 [2023-12-16 11:05:58,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:05:58,082 INFO L225 Difference]: With dead ends: 1455 [2023-12-16 11:05:58,082 INFO L226 Difference]: Without dead ends: 973 [2023-12-16 11:05:58,084 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1022 GetRequests, 1013 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2023-12-16 11:05:58,086 INFO L413 NwaCegarLoop]: 229 mSDtfsCounter, 202 mSDsluCounter, 906 mSDsCounter, 0 mSdLazyCounter, 433 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 1135 SdHoareTripleChecker+Invalid, 452 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 433 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2023-12-16 11:05:58,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 1135 Invalid, 452 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 433 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2023-12-16 11:05:58,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2023-12-16 11:05:58,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 963. [2023-12-16 11:05:58,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 649 states have (on average 1.4838212634822805) internal successors, (963), 655 states have internal predecessors, (963), 304 states have call successors, (304), 9 states have call predecessors, (304), 9 states have return successors, (304), 298 states have call predecessors, (304), 304 states have call successors, (304) [2023-12-16 11:05:58,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1571 transitions. [2023-12-16 11:05:58,166 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1571 transitions. Word has length 464 [2023-12-16 11:05:58,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:05:58,167 INFO L495 AbstractCegarLoop]: Abstraction has 963 states and 1571 transitions. [2023-12-16 11:05:58,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 16.333333333333332) internal successors, (98), 5 states have internal predecessors, (98), 2 states have call successors, (75), 2 states have call predecessors, (75), 3 states have return successors, (75), 2 states have call predecessors, (75), 2 states have call successors, (75) [2023-12-16 11:05:58,168 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1571 transitions. [2023-12-16 11:05:58,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2023-12-16 11:05:58,172 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:05:58,172 INFO L195 NwaCegarLoop]: trace histogram [75, 75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:05:58,209 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 [2023-12-16 11:05:58,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (8)] Ended with exit code 0 [2023-12-16 11:05:58,588 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 [2023-12-16 11:05:58,589 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:05:58,589 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:05:58,589 INFO L85 PathProgramCache]: Analyzing trace with hash 1954370850, now seen corresponding path program 1 times [2023-12-16 11:05:58,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:05:58,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1366898599] [2023-12-16 11:05:58,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:05:58,590 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 [2023-12-16 11:05:58,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:05:58,592 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) [2023-12-16 11:05:58,625 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 [2023-12-16 11:06:00,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:06:00,085 INFO L262 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 11:06:00,091 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:06:05,575 INFO L134 CoverageAnalysis]: Checked inductivity of 11100 backedges. 1202 proven. 210 refuted. 0 times theorem prover too weak. 9688 trivial. 0 not checked. [2023-12-16 11:06:05,575 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:06:05,999 INFO L134 CoverageAnalysis]: Checked inductivity of 11100 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11100 trivial. 0 not checked. [2023-12-16 11:06:05,999 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:06:05,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1366898599] [2023-12-16 11:06:06,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1366898599] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 11:06:06,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 11:06:06,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 9 [2023-12-16 11:06:06,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241880318] [2023-12-16 11:06:06,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:06:06,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 11:06:06,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:06:06,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 11:06:06,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2023-12-16 11:06:06,001 INFO L87 Difference]: Start difference. First operand 963 states and 1571 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 1 states have call predecessors, (75), 1 states have call successors, (75) [2023-12-16 11:06:06,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:06:06,713 INFO L93 Difference]: Finished difference Result 2159 states and 3494 transitions. [2023-12-16 11:06:06,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 11:06:06,715 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 1 states have call predecessors, (75), 1 states have call successors, (75) Word has length 465 [2023-12-16 11:06:06,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:06:06,722 INFO L225 Difference]: With dead ends: 2159 [2023-12-16 11:06:06,722 INFO L226 Difference]: Without dead ends: 1197 [2023-12-16 11:06:06,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 929 GetRequests, 921 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2023-12-16 11:06:06,726 INFO L413 NwaCegarLoop]: 307 mSDtfsCounter, 54 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 910 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-12-16 11:06:06,728 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 910 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-12-16 11:06:06,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2023-12-16 11:06:06,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1131. [2023-12-16 11:06:06,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1131 states, 777 states have (on average 1.465894465894466) internal successors, (1139), 791 states have internal predecessors, (1139), 336 states have call successors, (336), 17 states have call predecessors, (336), 17 states have return successors, (336), 322 states have call predecessors, (336), 336 states have call successors, (336) [2023-12-16 11:06:06,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1811 transitions. [2023-12-16 11:06:06,793 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1811 transitions. Word has length 465 [2023-12-16 11:06:06,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:06:06,795 INFO L495 AbstractCegarLoop]: Abstraction has 1131 states and 1811 transitions. [2023-12-16 11:06:06,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 1 states have call successors, (75), 1 states have call predecessors, (75), 1 states have return successors, (75), 1 states have call predecessors, (75), 1 states have call successors, (75) [2023-12-16 11:06:06,795 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1811 transitions. [2023-12-16 11:06:06,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 466 [2023-12-16 11:06:06,798 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:06:06,799 INFO L195 NwaCegarLoop]: trace histogram [75, 75, 75, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:06:06,845 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 [2023-12-16 11:06:07,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:06:07,025 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:06:07,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:06:07,025 INFO L85 PathProgramCache]: Analyzing trace with hash 179363488, now seen corresponding path program 1 times [2023-12-16 11:06:07,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:06:07,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [177549073] [2023-12-16 11:06:07,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:06:07,026 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 [2023-12-16 11:06:07,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:06:07,027 INFO L229 MonitoredProcess]: Starting monitored process 10 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) [2023-12-16 11:06:07,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process Received shutdown request... [2023-12-16 11:06:07,136 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 [2023-12-16 11:06:07,172 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 (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:06:08,292 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 0 [2023-12-16 11:06:08,373 WARN L435 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 (10)] Forcibly destroying the process [2023-12-16 11:06:08,394 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 (10)] Forceful destruction successful, exit code 137 [2023-12-16 11:06:08,395 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-16 11:06:08,397 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:06:08,397 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 466 with TraceHistMax 75,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [177549073] and IpTcStrategyModuleCvc4 [232777493]. [2023-12-16 11:06:08,401 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-12-16 11:06:08,403 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:06:08,404 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:06:08 BoogieIcfgContainer [2023-12-16 11:06:08,405 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:06:08,405 INFO L158 Benchmark]: Toolchain (without parser) took 76505.69ms. Allocated memory is still 339.7MB. Free memory was 286.0MB in the beginning and 196.8MB in the end (delta: 89.2MB). Peak memory consumption was 90.3MB. Max. memory is 8.0GB. [2023-12-16 11:06:08,405 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 240.1MB. Free memory is still 190.0MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:06:08,405 INFO L158 Benchmark]: CACSL2BoogieTranslator took 454.23ms. Allocated memory is still 339.7MB. Free memory was 285.7MB in the beginning and 261.6MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2023-12-16 11:06:08,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.99ms. Allocated memory is still 339.7MB. Free memory was 261.6MB in the beginning and 257.0MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-16 11:06:08,407 INFO L158 Benchmark]: Boogie Preprocessor took 87.56ms. Allocated memory is still 339.7MB. Free memory was 257.0MB in the beginning and 250.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 11:06:08,407 INFO L158 Benchmark]: RCFGBuilder took 15234.85ms. Allocated memory is still 339.7MB. Free memory was 250.3MB in the beginning and 267.2MB in the end (delta: -16.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 11:06:08,408 INFO L158 Benchmark]: TraceAbstraction took 60674.79ms. Allocated memory is still 339.7MB. Free memory was 266.2MB in the beginning and 196.8MB in the end (delta: 69.4MB). Peak memory consumption was 69.4MB. Max. memory is 8.0GB. [2023-12-16 11:06:08,410 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 240.1MB. Free memory is still 190.0MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 454.23ms. Allocated memory is still 339.7MB. Free memory was 285.7MB in the beginning and 261.6MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 49.99ms. Allocated memory is still 339.7MB. Free memory was 261.6MB in the beginning and 257.0MB in the end (delta: 4.6MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 87.56ms. Allocated memory is still 339.7MB. Free memory was 257.0MB in the beginning and 250.7MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 15234.85ms. Allocated memory is still 339.7MB. Free memory was 250.3MB in the beginning and 267.2MB in the end (delta: -16.9MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * TraceAbstraction took 60674.79ms. Allocated memory is still 339.7MB. Free memory was 266.2MB in the beginning and 196.8MB in the end (delta: 69.4MB). Peak memory consumption was 69.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 466 with TraceHistMax 75,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleMathsat [177549073] and IpTcStrategyModuleCvc4 [232777493]. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 193 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 60.6s, OverallIterations: 6, TraceHistogramMax: 75, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 6.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 649 SdHoareTripleChecker+Valid, 5.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 586 mSDsluCounter, 3686 SdHoareTripleChecker+Invalid, 5.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2107 mSDsCounter, 32 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 511 IncrementalHoareTripleChecker+Invalid, 543 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 32 mSolverCounterUnsat, 1579 mSDtfsCounter, 511 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4358 GetRequests, 4329 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1131occurred in iteration=5, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 82 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 14.0s SatisfiabilityAnalysisTime, 35.8s InterpolantComputationTime, 3713 NumberOfCodeBlocks, 3713 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 4169 ConstructedInterpolants, 0 QuantifiedInterpolants, 10644 SizeOfPredicates, 21 NumberOfNonLiveVariables, 5962 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 9 InterpolantComputations, 4 PerfectInterpolantSequences, 99558/99900 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