/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-55.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:53:15,145 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:53:15,204 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 11:53:15,207 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:53:15,208 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:53:15,228 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:53:15,228 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:53:15,229 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:53:15,229 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:53:15,232 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:53:15,232 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:53:15,232 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:53:15,232 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:53:15,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:53:15,233 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:53:15,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:53:15,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:53:15,234 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:53:15,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:53:15,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:53:15,235 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:53:15,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:53:15,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:53:15,236 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:53:15,236 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:53:15,236 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:53:15,236 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:53:15,236 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:53:15,236 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:53:15,236 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:53:15,237 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:53:15,237 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:53:15,237 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:53:15,237 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:53:15,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:53:15,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:53:15,238 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:53:15,238 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:53:15,238 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:53:15,238 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:53:15,238 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:53:15,238 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:53:15,238 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:53:15,238 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:53:15,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:53:15,239 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:53:15,239 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:53:15,389 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:53:15,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:53:15,409 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:53:15,410 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:53:15,410 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:53:15,410 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-55.i [2023-12-16 11:53:16,374 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:53:16,550 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:53:16,550 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-55.i [2023-12-16 11:53:16,561 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5811486e4/8efd27ade3f143bf8510cdeac10d8708/FLAG59525be0b [2023-12-16 11:53:16,572 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5811486e4/8efd27ade3f143bf8510cdeac10d8708 [2023-12-16 11:53:16,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:53:16,576 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:53:16,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:53:16,577 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:53:16,585 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:53:16,585 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,586 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fa53092 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16, skipping insertion in model container [2023-12-16 11:53:16,586 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,630 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:53:16,731 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-55.i[919,932] [2023-12-16 11:53:16,794 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:53:16,805 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:53:16,812 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-cn_file-55.i[919,932] [2023-12-16 11:53:16,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:53:16,865 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:53:16,865 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16 WrapperNode [2023-12-16 11:53:16,865 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:53:16,866 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:53:16,866 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:53:16,866 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:53:16,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,880 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,904 INFO L138 Inliner]: procedures = 27, calls = 71, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 282 [2023-12-16 11:53:16,904 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:53:16,904 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:53:16,905 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:53:16,905 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:53:16,911 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,912 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,915 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,924 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 11:53:16,927 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,927 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,940 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,950 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,951 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,954 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:53:16,955 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:53:16,955 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:53:16,955 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:53:16,956 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16" (1/1) ... [2023-12-16 11:53:16,964 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:53:16,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:53:16,983 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 11:53:17,004 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 11:53:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:53:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:53:17,008 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:53:17,009 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:53:17,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:53:17,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:53:17,099 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:53:17,100 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:53:26,472 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:53:26,501 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:53:26,501 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:53:26,501 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:53:26 BoogieIcfgContainer [2023-12-16 11:53:26,502 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:53:26,503 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:53:26,503 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:53:26,505 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:53:26,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:53:16" (1/3) ... [2023-12-16 11:53:26,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db39015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:53:26, skipping insertion in model container [2023-12-16 11:53:26,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:53:16" (2/3) ... [2023-12-16 11:53:26,506 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@db39015 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:53:26, skipping insertion in model container [2023-12-16 11:53:26,506 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:53:26" (3/3) ... [2023-12-16 11:53:26,507 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-cn_file-55.i [2023-12-16 11:53:26,518 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:53:26,518 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:53:26,547 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:53:26,551 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;@9c86ee5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:53:26,551 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:53:26,554 INFO L276 IsEmpty]: Start isEmpty. Operand has 122 states, 61 states have (on average 1.360655737704918) internal successors, (83), 62 states have internal predecessors, (83), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-16 11:53:26,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-12-16 11:53:26,590 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:53:26,591 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:26,591 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:53:26,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:53:26,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1264372109, now seen corresponding path program 1 times [2023-12-16 11:53:26,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:53:26,604 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [50220913] [2023-12-16 11:53:26,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:53:26,605 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 11:53:26,605 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:53:26,607 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 11:53:26,612 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 11:53:27,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:53:27,534 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 11:53:27,544 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:53:27,593 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 3338 proven. 0 refuted. 0 times theorem prover too weak. 3274 trivial. 0 not checked. [2023-12-16 11:53:27,593 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:53:27,593 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:53:27,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [50220913] [2023-12-16 11:53:27,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [50220913] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:53:27,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:53:27,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 11:53:27,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458664491] [2023-12-16 11:53:27,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:53:27,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 11:53:27,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:53:27,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 11:53:27,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 11:53:27,622 INFO L87 Difference]: Start difference. First operand has 122 states, 61 states have (on average 1.360655737704918) internal successors, (83), 62 states have internal predecessors, (83), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) Second operand has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2023-12-16 11:53:27,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:53:27,726 INFO L93 Difference]: Finished difference Result 241 states and 454 transitions. [2023-12-16 11:53:27,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 11:53:27,736 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) Word has length 340 [2023-12-16 11:53:27,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:53:27,743 INFO L225 Difference]: With dead ends: 241 [2023-12-16 11:53:27,743 INFO L226 Difference]: Without dead ends: 120 [2023-12-16 11:53:27,750 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 339 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 11:53:27,753 INFO L413 NwaCegarLoop]: 190 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 11:53:27,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 190 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 11:53:27,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2023-12-16 11:53:27,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2023-12-16 11:53:27,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 60 states have (on average 1.2833333333333334) internal successors, (77), 60 states have internal predecessors, (77), 58 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-16 11:53:27,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 193 transitions. [2023-12-16 11:53:27,805 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 193 transitions. Word has length 340 [2023-12-16 11:53:27,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:53:27,806 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 193 transitions. [2023-12-16 11:53:27,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.5) internal successors, (57), 2 states have internal predecessors, (57), 2 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 2 states have call predecessors, (58), 2 states have call successors, (58) [2023-12-16 11:53:27,807 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 193 transitions. [2023-12-16 11:53:27,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-12-16 11:53:27,815 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:53:27,816 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:27,836 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 [2023-12-16 11:53:28,029 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 11:53:28,029 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:53:28,030 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:53:28,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1407622017, now seen corresponding path program 1 times [2023-12-16 11:53:28,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:53:28,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1583863848] [2023-12-16 11:53:28,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:53:28,031 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 11:53:28,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:53:28,032 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 11:53:28,043 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 11:53:28,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:53:28,968 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:53:28,975 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:53:30,605 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 3333 proven. 93 refuted. 0 times theorem prover too weak. 3186 trivial. 0 not checked. [2023-12-16 11:53:30,605 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:53:31,495 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 78 proven. 93 refuted. 0 times theorem prover too weak. 6441 trivial. 0 not checked. [2023-12-16 11:53:31,496 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:53:31,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1583863848] [2023-12-16 11:53:31,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1583863848] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 11:53:31,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:53:31,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-16 11:53:31,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040906927] [2023-12-16 11:53:31,501 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:53:31,503 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 11:53:31,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:53:31,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 11:53:31,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:53:31,505 INFO L87 Difference]: Start difference. First operand 120 states and 193 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2023-12-16 11:53:33,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:53:33,550 INFO L93 Difference]: Finished difference Result 247 states and 392 transitions. [2023-12-16 11:53:33,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 11:53:33,561 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 340 [2023-12-16 11:53:33,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:53:33,563 INFO L225 Difference]: With dead ends: 247 [2023-12-16 11:53:33,563 INFO L226 Difference]: Without dead ends: 128 [2023-12-16 11:53:33,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 686 GetRequests, 672 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-12-16 11:53:33,565 INFO L413 NwaCegarLoop]: 126 mSDtfsCounter, 242 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 311 mSolverCounterSat, 275 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 244 SdHoareTripleChecker+Valid, 257 SdHoareTripleChecker+Invalid, 586 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 275 IncrementalHoareTripleChecker+Valid, 311 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2023-12-16 11:53:33,565 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [244 Valid, 257 Invalid, 586 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [275 Valid, 311 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2023-12-16 11:53:33,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-16 11:53:33,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 124. [2023-12-16 11:53:33,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 63 states have internal predecessors, (78), 58 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-16 11:53:33,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 194 transitions. [2023-12-16 11:53:33,584 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 194 transitions. Word has length 340 [2023-12-16 11:53:33,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:53:33,585 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 194 transitions. [2023-12-16 11:53:33,586 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2023-12-16 11:53:33,586 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 194 transitions. [2023-12-16 11:53:33,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-12-16 11:53:33,589 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:53:33,589 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:33,614 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 11:53:33,814 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 [2023-12-16 11:53:33,816 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:53:33,817 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:53:33,817 INFO L85 PathProgramCache]: Analyzing trace with hash 396504767, now seen corresponding path program 1 times [2023-12-16 11:53:33,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:53:33,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1793880735] [2023-12-16 11:53:33,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:53:33,818 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 11:53:33,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:53:33,819 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) [2023-12-16 11:53:33,840 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 [2023-12-16 11:53:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:53:34,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 534 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 11:53:34,808 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:53:36,425 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 3333 proven. 93 refuted. 0 times theorem prover too weak. 3186 trivial. 0 not checked. [2023-12-16 11:53:36,425 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:53:37,197 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 78 proven. 93 refuted. 0 times theorem prover too weak. 6441 trivial. 0 not checked. [2023-12-16 11:53:37,198 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:53:37,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1793880735] [2023-12-16 11:53:37,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1793880735] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 11:53:37,198 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 11:53:37,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-16 11:53:37,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895648966] [2023-12-16 11:53:37,198 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 11:53:37,199 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 11:53:37,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:53:37,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 11:53:37,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 11:53:37,200 INFO L87 Difference]: Start difference. First operand 124 states and 194 transitions. Second operand has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2023-12-16 11:53:40,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:53:40,578 INFO L93 Difference]: Finished difference Result 358 states and 555 transitions. [2023-12-16 11:53:40,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-12-16 11:53:40,579 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) Word has length 340 [2023-12-16 11:53:40,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:53:40,581 INFO L225 Difference]: With dead ends: 358 [2023-12-16 11:53:40,582 INFO L226 Difference]: Without dead ends: 235 [2023-12-16 11:53:40,582 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 690 GetRequests, 672 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=112, Invalid=230, Unknown=0, NotChecked=0, Total=342 [2023-12-16 11:53:40,583 INFO L413 NwaCegarLoop]: 218 mSDtfsCounter, 156 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 702 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 511 SdHoareTripleChecker+Invalid, 822 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 702 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-16 11:53:40,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 511 Invalid, 822 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 702 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-16 11:53:40,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2023-12-16 11:53:40,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 124. [2023-12-16 11:53:40,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 63 states have (on average 1.2063492063492063) internal successors, (76), 63 states have internal predecessors, (76), 58 states have call successors, (58), 2 states have call predecessors, (58), 2 states have return successors, (58), 58 states have call predecessors, (58), 58 states have call successors, (58) [2023-12-16 11:53:40,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 192 transitions. [2023-12-16 11:53:40,603 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 192 transitions. Word has length 340 [2023-12-16 11:53:40,603 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:53:40,603 INFO L495 AbstractCegarLoop]: Abstraction has 124 states and 192 transitions. [2023-12-16 11:53:40,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.75) internal successors, (62), 8 states have internal predecessors, (62), 2 states have call successors, (89), 2 states have call predecessors, (89), 4 states have return successors, (90), 2 states have call predecessors, (90), 2 states have call successors, (90) [2023-12-16 11:53:40,604 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 192 transitions. [2023-12-16 11:53:40,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-12-16 11:53:40,606 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:53:40,606 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:40,625 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-16 11:53:40,820 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 [2023-12-16 11:53:40,821 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:53:40,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:53:40,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1355734783, now seen corresponding path program 1 times [2023-12-16 11:53:40,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:53:40,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887350001] [2023-12-16 11:53:40,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:53:40,822 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 11:53:40,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:53:40,825 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 11:53:40,828 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 11:53:41,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:53:41,669 INFO L262 TraceCheckSpWp]: Trace formula consists of 532 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:53:41,674 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:53:41,706 INFO L134 CoverageAnalysis]: Checked inductivity of 6612 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 6612 trivial. 0 not checked. [2023-12-16 11:53:41,706 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:53:41,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:53:41,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887350001] [2023-12-16 11:53:41,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887350001] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:53:41,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:53:41,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:53:41,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994636120] [2023-12-16 11:53:41,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:53:41,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:53:41,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:53:41,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:53:41,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:53:41,710 INFO L87 Difference]: Start difference. First operand 124 states and 192 transitions. Second operand has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-16 11:53:42,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:53:42,017 INFO L93 Difference]: Finished difference Result 370 states and 574 transitions. [2023-12-16 11:53:42,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:53:42,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) Word has length 340 [2023-12-16 11:53:42,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:53:42,023 INFO L225 Difference]: With dead ends: 370 [2023-12-16 11:53:42,023 INFO L226 Difference]: Without dead ends: 247 [2023-12-16 11:53:42,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:53:42,024 INFO L413 NwaCegarLoop]: 350 mSDtfsCounter, 185 mSDsluCounter, 180 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 11:53:42,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 530 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 11:53:42,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2023-12-16 11:53:42,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 245. [2023-12-16 11:53:42,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 245 states, 124 states have (on average 1.2016129032258065) internal successors, (149), 124 states have internal predecessors, (149), 116 states have call successors, (116), 4 states have call predecessors, (116), 4 states have return successors, (116), 116 states have call predecessors, (116), 116 states have call successors, (116) [2023-12-16 11:53:42,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 381 transitions. [2023-12-16 11:53:42,057 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 381 transitions. Word has length 340 [2023-12-16 11:53:42,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:53:42,058 INFO L495 AbstractCegarLoop]: Abstraction has 245 states and 381 transitions. [2023-12-16 11:53:42,058 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.666666666666668) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (58), 1 states have call predecessors, (58), 1 states have return successors, (58), 1 states have call predecessors, (58), 1 states have call successors, (58) [2023-12-16 11:53:42,058 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 381 transitions. [2023-12-16 11:53:42,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 341 [2023-12-16 11:53:42,059 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:53:42,060 INFO L195 NwaCegarLoop]: trace histogram [58, 58, 58, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:53:42,085 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 [2023-12-16 11:53:42,260 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 [2023-12-16 11:53:42,260 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:53:42,261 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:53:42,261 INFO L85 PathProgramCache]: Analyzing trace with hash 2035793153, now seen corresponding path program 1 times [2023-12-16 11:53:42,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:53:42,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1607627093] [2023-12-16 11:53:42,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:53:42,262 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 11:53:42,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:53:42,262 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) [2023-12-16 11:53:42,263 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 [2023-12-16 11:53:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:53:43,148 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 39 conjunts are in the unsatisfiable core [2023-12-16 11:53:43,156 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 11:54:32,236 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 11:54:32,237 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 (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:54:32,322 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 11:54:32,338 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 [2023-12-16 11:54:32,523 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 [2023-12-16 11:54:32,524 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 341 with TraceHistMax 58,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-16-2-2-1 context. [2023-12-16 11:54:32,527 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 11:54:32,529 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 11:54:32,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 11:54:32 BoogieIcfgContainer [2023-12-16 11:54:32,531 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 11:54:32,531 INFO L158 Benchmark]: Toolchain (without parser) took 75954.76ms. Allocated memory is still 254.8MB. Free memory was 216.3MB in the beginning and 144.0MB in the end (delta: 72.4MB). Peak memory consumption was 73.4MB. Max. memory is 8.0GB. [2023-12-16 11:54:32,531 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 186.6MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 11:54:32,531 INFO L158 Benchmark]: CACSL2BoogieTranslator took 288.69ms. Allocated memory is still 254.8MB. Free memory was 216.3MB in the beginning and 198.7MB in the end (delta: 17.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. [2023-12-16 11:54:32,532 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.86ms. Allocated memory is still 254.8MB. Free memory was 198.7MB in the beginning and 195.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 11:54:32,532 INFO L158 Benchmark]: Boogie Preprocessor took 49.96ms. Allocated memory is still 254.8MB. Free memory was 195.6MB in the beginning and 191.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 11:54:32,532 INFO L158 Benchmark]: RCFGBuilder took 9546.69ms. Allocated memory is still 254.8MB. Free memory was 191.4MB in the beginning and 159.5MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. [2023-12-16 11:54:32,532 INFO L158 Benchmark]: TraceAbstraction took 66027.53ms. Allocated memory is still 254.8MB. Free memory was 158.5MB in the beginning and 144.0MB in the end (delta: 14.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 11:54:32,533 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 186.6MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 288.69ms. Allocated memory is still 254.8MB. Free memory was 216.3MB in the beginning and 198.7MB in the end (delta: 17.6MB). Peak memory consumption was 17.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 37.86ms. Allocated memory is still 254.8MB. Free memory was 198.7MB in the beginning and 195.6MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 49.96ms. Allocated memory is still 254.8MB. Free memory was 195.6MB in the beginning and 191.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 9546.69ms. Allocated memory is still 254.8MB. Free memory was 191.4MB in the beginning and 159.5MB in the end (delta: 31.9MB). Peak memory consumption was 31.5MB. Max. memory is 8.0GB. * TraceAbstraction took 66027.53ms. Allocated memory is still 254.8MB. Free memory was 158.5MB in the beginning and 144.0MB in the end (delta: 14.5MB). Peak memory consumption was 15.7MB. 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 341 with TraceHistMax 58,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-16-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 122 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.0s, OverallIterations: 5, TraceHistogramMax: 58, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 612 SdHoareTripleChecker+Valid, 5.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 583 mSDsluCounter, 1488 SdHoareTripleChecker+Invalid, 4.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 604 mSDsCounter, 395 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1032 IncrementalHoareTripleChecker+Invalid, 1427 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 395 mSolverCounterUnsat, 884 mSDtfsCounter, 1032 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2054 GetRequests, 2021 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 1.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=245occurred in iteration=4, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 117 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 1360 NumberOfCodeBlocks, 1360 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 2034 ConstructedInterpolants, 0 QuantifiedInterpolants, 3482 SizeOfPredicates, 9 NumberOfNonLiveVariables, 2134 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 39300/39672 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