/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-co_file-77.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 12:04:52,905 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 12:04:52,947 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 12:04:52,959 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 12:04:52,959 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 12:04:52,984 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 12:04:52,985 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 12:04:52,985 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 12:04:52,985 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 12:04:52,986 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 12:04:52,986 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 12:04:52,986 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 12:04:52,986 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 12:04:52,987 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 12:04:52,987 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 12:04:52,987 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 12:04:52,987 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 12:04:52,987 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 12:04:52,988 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 12:04:52,988 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 12:04:52,988 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 12:04:52,991 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 12:04:52,991 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 12:04:52,991 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 12:04:52,991 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 12:04:52,991 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 12:04:52,992 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 12:04:52,992 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 12:04:52,992 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 12:04:52,992 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 12:04:52,992 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 12:04:52,992 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 12:04:52,992 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 12:04:52,993 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 12:04:52,993 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:04:52,993 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 12:04:52,993 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 12:04:52,993 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 12:04:52,993 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 12:04:52,994 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 12:04:52,994 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 12:04:52,995 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 12:04:52,995 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 12:04:52,995 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 12:04:52,995 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 12:04:52,995 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 12:04:52,995 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 12:04:53,163 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 12:04:53,175 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 12:04:53,177 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 12:04:53,178 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 12:04:53,178 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 12:04:53,179 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-77.i [2023-12-16 12:04:54,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 12:04:54,415 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 12:04:54,415 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-77.i [2023-12-16 12:04:54,423 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b53c1a72c/3aac9e64aac545ddac248f01e18036e6/FLAG3ad1a77e2 [2023-12-16 12:04:54,432 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b53c1a72c/3aac9e64aac545ddac248f01e18036e6 [2023-12-16 12:04:54,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 12:04:54,435 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 12:04:54,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 12:04:54,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 12:04:54,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 12:04:54,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40326476 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54, skipping insertion in model container [2023-12-16 12:04:54,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,467 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 12:04:54,568 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-co_file-77.i[919,932] [2023-12-16 12:04:54,647 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:04:54,666 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 12:04:54,678 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-co_file-77.i[919,932] [2023-12-16 12:04:54,725 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 12:04:54,741 INFO L206 MainTranslator]: Completed translation [2023-12-16 12:04:54,743 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54 WrapperNode [2023-12-16 12:04:54,743 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 12:04:54,744 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 12:04:54,744 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 12:04:54,744 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 12:04:54,749 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,769 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,802 INFO L138 Inliner]: procedures = 27, calls = 48, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 219 [2023-12-16 12:04:54,802 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 12:04:54,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 12:04:54,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 12:04:54,803 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 12:04:54,812 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,818 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,846 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 12:04:54,846 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,847 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,859 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,861 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,862 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,867 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 12:04:54,868 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 12:04:54,868 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 12:04:54,868 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 12:04:54,868 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54" (1/1) ... [2023-12-16 12:04:54,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 12:04:54,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 12:04:54,892 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 12:04:54,893 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 12:04:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 12:04:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 12:04:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 12:04:54,910 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 12:04:54,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 12:04:54,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 12:04:54,997 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 12:04:55,000 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 12:04:56,481 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 12:04:56,538 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 12:04:56,538 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 12:04:56,539 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:04:56 BoogieIcfgContainer [2023-12-16 12:04:56,539 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 12:04:56,540 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 12:04:56,540 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 12:04:56,542 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 12:04:56,542 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 12:04:54" (1/3) ... [2023-12-16 12:04:56,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2dc941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:04:56, skipping insertion in model container [2023-12-16 12:04:56,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 12:04:54" (2/3) ... [2023-12-16 12:04:56,543 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2dc941 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 12:04:56, skipping insertion in model container [2023-12-16 12:04:56,543 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 12:04:56" (3/3) ... [2023-12-16 12:04:56,544 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-77.i [2023-12-16 12:04:56,554 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 12:04:56,554 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 12:04:56,581 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 12:04:56,584 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;@35fe23dc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 12:04:56,585 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 12:04:56,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 92 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 55 states have internal predecessors, (80), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 12:04:56,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-16 12:04:56,602 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:04:56,603 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:56,603 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:04:56,606 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:04:56,606 INFO L85 PathProgramCache]: Analyzing trace with hash 2115637874, now seen corresponding path program 1 times [2023-12-16 12:04:56,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:04:56,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [594766705] [2023-12-16 12:04:56,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:04:56,615 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 12:04:56,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:04:56,617 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 12:04:56,640 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 12:04:56,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:04:56,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 12:04:56,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:04:56,928 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 968 proven. 0 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2023-12-16 12:04:56,929 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:04:56,929 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:04:56,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [594766705] [2023-12-16 12:04:56,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [594766705] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:04:56,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:04:56,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 12:04:56,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108189927] [2023-12-16 12:04:56,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:04:56,934 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 12:04:56,935 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:04:56,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 12:04:56,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 12:04:56,953 INFO L87 Difference]: Start difference. First operand has 92 states, 54 states have (on average 1.4814814814814814) internal successors, (80), 55 states have internal predecessors, (80), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) Second operand has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-16 12:04:57,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:04:57,262 INFO L93 Difference]: Finished difference Result 181 states and 333 transitions. [2023-12-16 12:04:57,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 12:04:57,277 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 214 [2023-12-16 12:04:57,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:04:57,282 INFO L225 Difference]: With dead ends: 181 [2023-12-16 12:04:57,283 INFO L226 Difference]: Without dead ends: 90 [2023-12-16 12:04:57,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 213 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 12:04:57,292 INFO L413 NwaCegarLoop]: 141 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 141 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 12:04:57,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 12:04:57,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2023-12-16 12:04:57,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 90. [2023-12-16 12:04:57,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 53 states have (on average 1.3962264150943395) internal successors, (74), 53 states have internal predecessors, (74), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 12:04:57,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 144 transitions. [2023-12-16 12:04:57,330 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 144 transitions. Word has length 214 [2023-12-16 12:04:57,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:04:57,330 INFO L495 AbstractCegarLoop]: Abstraction has 90 states and 144 transitions. [2023-12-16 12:04:57,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.0) internal successors, (46), 2 states have internal predecessors, (46), 2 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2023-12-16 12:04:57,331 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 144 transitions. [2023-12-16 12:04:57,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-16 12:04:57,333 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:04:57,335 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:57,343 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 12:04:57,543 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 12:04:57,543 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:04:57,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:04:57,544 INFO L85 PathProgramCache]: Analyzing trace with hash 1181649528, now seen corresponding path program 1 times [2023-12-16 12:04:57,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:04:57,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [296127268] [2023-12-16 12:04:57,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:04:57,554 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 12:04:57,554 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:04:57,555 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 12:04:57,570 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 12:04:57,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:04:57,804 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 12:04:57,809 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:04:57,873 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2380 trivial. 0 not checked. [2023-12-16 12:04:57,873 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 12:04:57,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:04:57,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [296127268] [2023-12-16 12:04:57,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [296127268] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 12:04:57,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 12:04:57,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 12:04:57,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253290730] [2023-12-16 12:04:57,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 12:04:57,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 12:04:57,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:04:57,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 12:04:57,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 12:04:57,882 INFO L87 Difference]: Start difference. First operand 90 states and 144 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2023-12-16 12:04:58,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:04:58,420 INFO L93 Difference]: Finished difference Result 178 states and 285 transitions. [2023-12-16 12:04:58,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 12:04:58,436 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) Word has length 214 [2023-12-16 12:04:58,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:04:58,438 INFO L225 Difference]: With dead ends: 178 [2023-12-16 12:04:58,439 INFO L226 Difference]: Without dead ends: 89 [2023-12-16 12:04:58,439 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 212 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 12:04:58,440 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 25 mSDsluCounter, 111 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 248 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 12:04:58,440 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 248 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 12:04:58,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2023-12-16 12:04:58,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2023-12-16 12:04:58,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 52 states have (on average 1.3653846153846154) internal successors, (71), 52 states have internal predecessors, (71), 35 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 12:04:58,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 141 transitions. [2023-12-16 12:04:58,449 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 141 transitions. Word has length 214 [2023-12-16 12:04:58,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:04:58,451 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 141 transitions. [2023-12-16 12:04:58,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (35), 1 states have call predecessors, (35), 1 states have return successors, (35), 1 states have call predecessors, (35), 1 states have call successors, (35) [2023-12-16 12:04:58,451 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 141 transitions. [2023-12-16 12:04:58,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2023-12-16 12:04:58,454 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:04:58,454 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:58,462 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 (3)] Ended with exit code 0 [2023-12-16 12:04:58,662 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 12:04:58,662 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:04:58,663 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:04:58,663 INFO L85 PathProgramCache]: Analyzing trace with hash -1881167496, now seen corresponding path program 1 times [2023-12-16 12:04:58,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:04:58,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [761794438] [2023-12-16 12:04:58,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:04:58,666 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 12:04:58,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:04:58,668 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 12:04:58,669 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 12:04:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:04:58,943 INFO L262 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 12:04:58,948 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:04:59,276 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 1222 proven. 48 refuted. 0 times theorem prover too weak. 1110 trivial. 0 not checked. [2023-12-16 12:04:59,277 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 12:04:59,540 INFO L134 CoverageAnalysis]: Checked inductivity of 2380 backedges. 54 proven. 48 refuted. 0 times theorem prover too weak. 2278 trivial. 0 not checked. [2023-12-16 12:04:59,540 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 12:04:59,541 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [761794438] [2023-12-16 12:04:59,541 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [761794438] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-16 12:04:59,541 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 12:04:59,541 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2023-12-16 12:04:59,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894942517] [2023-12-16 12:04:59,541 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 12:04:59,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 12:04:59,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 12:04:59,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 12:04:59,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-12-16 12:04:59,543 INFO L87 Difference]: Start difference. First operand 89 states and 141 transitions. Second operand has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2023-12-16 12:05:00,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 12:05:00,453 INFO L93 Difference]: Finished difference Result 185 states and 288 transitions. [2023-12-16 12:05:00,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 12:05:00,458 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) Word has length 214 [2023-12-16 12:05:00,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 12:05:00,459 INFO L225 Difference]: With dead ends: 185 [2023-12-16 12:05:00,459 INFO L226 Difference]: Without dead ends: 97 [2023-12-16 12:05:00,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 434 GetRequests, 420 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=133, Unknown=0, NotChecked=0, Total=210 [2023-12-16 12:05:00,461 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 163 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 154 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 154 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-16 12:05:00,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 192 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [154 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-16 12:05:00,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-12-16 12:05:00,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 93. [2023-12-16 12:05:00,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 55 states have (on average 1.2545454545454546) internal successors, (69), 55 states have internal predecessors, (69), 35 states have call successors, (35), 2 states have call predecessors, (35), 2 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2023-12-16 12:05:00,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 139 transitions. [2023-12-16 12:05:00,472 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 139 transitions. Word has length 214 [2023-12-16 12:05:00,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 12:05:00,472 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 139 transitions. [2023-12-16 12:05:00,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.375) internal successors, (51), 8 states have internal predecessors, (51), 2 states have call successors, (51), 2 states have call predecessors, (51), 4 states have return successors, (52), 2 states have call predecessors, (52), 2 states have call successors, (52) [2023-12-16 12:05:00,473 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 139 transitions. [2023-12-16 12:05:00,475 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2023-12-16 12:05:00,475 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 12:05:00,475 INFO L195 NwaCegarLoop]: trace histogram [35, 35, 35, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:00,488 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 12:05:00,685 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 12:05:00,686 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 12:05:00,686 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 12:05:00,686 INFO L85 PathProgramCache]: Analyzing trace with hash 1289690365, now seen corresponding path program 1 times [2023-12-16 12:05:00,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 12:05:00,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [65103321] [2023-12-16 12:05:00,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 12:05:00,687 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 12:05:00,687 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 12:05:00,688 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 12:05:00,690 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 12:05:00,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 12:05:00,952 INFO L262 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 29 conjunts are in the unsatisfiable core [2023-12-16 12:05:00,958 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 12:05:54,171 WARN L293 SmtUtils]: Spent 6.01s on a formula simplification that was a NOOP. DAG size: 66 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2023-12-16 12:06:13,344 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 12:06:13,381 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 12:06:14,392 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 12:06:14,545 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-16 12:06:14,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-16 12:06:14,557 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 12:06:14,557 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 217 with TraceHistMax 35,while TraceCheckSpWp was constructing forward predicates,while executing Executor. [2023-12-16 12:06:14,560 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 12:06:14,561 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 12:06:14,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 12:06:14 BoogieIcfgContainer [2023-12-16 12:06:14,563 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 12:06:14,563 INFO L158 Benchmark]: Toolchain (without parser) took 80128.07ms. Allocated memory was 317.7MB in the beginning and 381.7MB in the end (delta: 64.0MB). Free memory was 277.7MB in the beginning and 185.2MB in the end (delta: 92.5MB). Peak memory consumption was 157.8MB. Max. memory is 8.0GB. [2023-12-16 12:06:14,563 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 202.4MB. Free memory is still 150.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 12:06:14,564 INFO L158 Benchmark]: CACSL2BoogieTranslator took 307.60ms. Allocated memory is still 317.7MB. Free memory was 277.5MB in the beginning and 261.0MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-16 12:06:14,564 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.86ms. Allocated memory is still 317.7MB. Free memory was 261.0MB in the beginning and 258.3MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:06:14,564 INFO L158 Benchmark]: Boogie Preprocessor took 64.37ms. Allocated memory is still 317.7MB. Free memory was 258.3MB in the beginning and 254.4MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2023-12-16 12:06:14,564 INFO L158 Benchmark]: RCFGBuilder took 1671.17ms. Allocated memory is still 317.7MB. Free memory was 254.4MB in the beginning and 283.5MB in the end (delta: -29.1MB). Peak memory consumption was 30.1MB. Max. memory is 8.0GB. [2023-12-16 12:06:14,564 INFO L158 Benchmark]: TraceAbstraction took 78022.76ms. Allocated memory was 317.7MB in the beginning and 381.7MB in the end (delta: 64.0MB). Free memory was 283.0MB in the beginning and 185.2MB in the end (delta: 97.8MB). Peak memory consumption was 162.3MB. Max. memory is 8.0GB. [2023-12-16 12:06:14,565 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 202.4MB. Free memory is still 150.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 307.60ms. Allocated memory is still 317.7MB. Free memory was 277.5MB in the beginning and 261.0MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 57.86ms. Allocated memory is still 317.7MB. Free memory was 261.0MB in the beginning and 258.3MB in the end (delta: 2.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 64.37ms. Allocated memory is still 317.7MB. Free memory was 258.3MB in the beginning and 254.4MB in the end (delta: 3.8MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 1671.17ms. Allocated memory is still 317.7MB. Free memory was 254.4MB in the beginning and 283.5MB in the end (delta: -29.1MB). Peak memory consumption was 30.1MB. Max. memory is 8.0GB. * TraceAbstraction took 78022.76ms. Allocated memory was 317.7MB in the beginning and 381.7MB in the end (delta: 64.0MB). Free memory was 283.0MB in the beginning and 185.2MB in the end (delta: 97.8MB). Peak memory consumption was 162.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 217 with TraceHistMax 35,while TraceCheckSpWp was constructing forward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 92 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 78.0s, OverallIterations: 4, TraceHistogramMax: 35, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 190 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 581 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 214 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 216 IncrementalHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 367 mSDtfsCounter, 216 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 860 GetRequests, 845 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=3, InterpolantAutomatonStates: 15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 642 NumberOfCodeBlocks, 642 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 852 ConstructedInterpolants, 1 QuantifiedInterpolants, 1318 SizeOfPredicates, 6 NumberOfNonLiveVariables, 1056 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 9424/9520 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