/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-pr-co_file-25.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-23 12:53:07,562 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-23 12:53:07,632 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-23 12:53:07,637 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-23 12:53:07,637 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-23 12:53:07,658 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-23 12:53:07,659 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-23 12:53:07,659 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-23 12:53:07,659 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-23 12:53:07,660 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-23 12:53:07,660 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-23 12:53:07,660 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-23 12:53:07,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-23 12:53:07,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-23 12:53:07,661 INFO L153 SettingsManager]: * Use SBE=true [2023-12-23 12:53:07,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-23 12:53:07,661 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-23 12:53:07,662 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-23 12:53:07,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-23 12:53:07,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-23 12:53:07,662 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-23 12:53:07,664 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-23 12:53:07,664 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-23 12:53:07,664 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-23 12:53:07,664 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-23 12:53:07,664 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-23 12:53:07,664 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-23 12:53:07,665 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-23 12:53:07,665 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-23 12:53:07,665 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-23 12:53:07,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-23 12:53:07,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-23 12:53:07,666 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-23 12:53:07,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-23 12:53:07,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 12:53:07,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-23 12:53:07,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-23 12:53:07,667 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-23 12:53:07,667 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-23 12:53:07,667 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-23 12:53:07,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-23 12:53:07,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-23 12:53:07,667 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-23 12:53:07,667 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-23 12:53:07,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-23 12:53:07,668 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-23 12:53:07,668 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-23 12:53:07,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-23 12:53:07,867 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-23 12:53:07,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-23 12:53:07,869 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-23 12:53:07,870 INFO L274 PluginConnector]: CDTParser initialized [2023-12-23 12:53:07,871 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-25.i [2023-12-23 12:53:08,887 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-23 12:53:09,042 INFO L384 CDTParser]: Found 1 translation units. [2023-12-23 12:53:09,043 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-co_file-25.i [2023-12-23 12:53:09,050 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98b5937af/2a0322efe93e451bb9acccca148ee88e/FLAG6c140e3cb [2023-12-23 12:53:09,063 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/98b5937af/2a0322efe93e451bb9acccca148ee88e [2023-12-23 12:53:09,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-23 12:53:09,065 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-23 12:53:09,067 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-23 12:53:09,067 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-23 12:53:09,077 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-23 12:53:09,077 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cce2b9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09, skipping insertion in model container [2023-12-23 12:53:09,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,110 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-23 12:53:09,236 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-pr-co_file-25.i[919,932] [2023-12-23 12:53:09,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 12:53:09,315 INFO L202 MainTranslator]: Completed pre-run [2023-12-23 12:53:09,325 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-pr-co_file-25.i[919,932] [2023-12-23 12:53:09,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-23 12:53:09,364 INFO L206 MainTranslator]: Completed translation [2023-12-23 12:53:09,364 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09 WrapperNode [2023-12-23 12:53:09,364 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-23 12:53:09,365 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-23 12:53:09,365 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-23 12:53:09,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-23 12:53:09,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,380 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,407 INFO L138 Inliner]: procedures = 27, calls = 35, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 194 [2023-12-23 12:53:09,407 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-23 12:53:09,408 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-23 12:53:09,408 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-23 12:53:09,408 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-23 12:53:09,415 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,420 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,432 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-23 12:53:09,432 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,440 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,449 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,452 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,454 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,455 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,458 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-23 12:53:09,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-23 12:53:09,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-23 12:53:09,459 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-23 12:53:09,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09" (1/1) ... [2023-12-23 12:53:09,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-23 12:53:09,477 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-23 12:53:09,493 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-23 12:53:09,500 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-23 12:53:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-23 12:53:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-23 12:53:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-23 12:53:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-23 12:53:09,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-23 12:53:09,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-23 12:53:09,579 INFO L241 CfgBuilder]: Building ICFG [2023-12-23 12:53:09,581 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-23 12:53:21,693 INFO L282 CfgBuilder]: Performing block encoding [2023-12-23 12:53:21,723 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-23 12:53:21,723 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-23 12:53:21,723 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:53:21 BoogieIcfgContainer [2023-12-23 12:53:21,723 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-23 12:53:21,725 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-23 12:53:21,725 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-23 12:53:21,727 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-23 12:53:21,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.12 12:53:09" (1/3) ... [2023-12-23 12:53:21,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d102fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:53:21, skipping insertion in model container [2023-12-23 12:53:21,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.12 12:53:09" (2/3) ... [2023-12-23 12:53:21,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74d102fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.12 12:53:21, skipping insertion in model container [2023-12-23 12:53:21,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.12 12:53:21" (3/3) ... [2023-12-23 12:53:21,729 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-co_file-25.i [2023-12-23 12:53:21,742 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-23 12:53:21,742 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-23 12:53:21,795 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-23 12:53:21,801 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;@6298778d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-23 12:53:21,801 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-23 12:53:21,805 INFO L276 IsEmpty]: Start isEmpty. Operand has 78 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 54 states have internal predecessors, (82), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-23 12:53:21,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-23 12:53:21,820 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 12:53:21,821 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 12:53:21,821 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 12:53:21,825 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 12:53:21,825 INFO L85 PathProgramCache]: Analyzing trace with hash 2019529562, now seen corresponding path program 1 times [2023-12-23 12:53:21,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 12:53:21,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [706561914] [2023-12-23 12:53:21,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 12:53:21,835 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 12:53:21,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 12:53:21,838 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 12:53:21,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-23 12:53:22,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 12:53:22,986 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-23 12:53:22,993 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 12:53:23,020 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 474 proven. 0 refuted. 0 times theorem prover too weak. 450 trivial. 0 not checked. [2023-12-23 12:53:23,021 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 12:53:23,021 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 12:53:23,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [706561914] [2023-12-23 12:53:23,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [706561914] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 12:53:23,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 12:53:23,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 12:53:23,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678501273] [2023-12-23 12:53:23,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 12:53:23,026 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-23 12:53:23,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 12:53:23,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-23 12:53:23,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 12:53:23,054 INFO L87 Difference]: Start difference. First operand has 78 states, 53 states have (on average 1.5471698113207548) internal successors, (82), 54 states have internal predecessors, (82), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-23 12:53:23,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 12:53:23,312 INFO L93 Difference]: Finished difference Result 153 states and 272 transitions. [2023-12-23 12:53:23,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-23 12:53:23,334 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 147 [2023-12-23 12:53:23,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 12:53:23,340 INFO L225 Difference]: With dead ends: 153 [2023-12-23 12:53:23,340 INFO L226 Difference]: Without dead ends: 76 [2023-12-23 12:53:23,342 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-23 12:53:23,346 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-23 12:53:23,346 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 117 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-23 12:53:23,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2023-12-23 12:53:23,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2023-12-23 12:53:23,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 52 states have (on average 1.4615384615384615) internal successors, (76), 52 states have internal predecessors, (76), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-23 12:53:23,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 120 transitions. [2023-12-23 12:53:23,386 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 120 transitions. Word has length 147 [2023-12-23 12:53:23,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 12:53:23,386 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 120 transitions. [2023-12-23 12:53:23,386 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (22), 2 states have call predecessors, (22), 2 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2023-12-23 12:53:23,387 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 120 transitions. [2023-12-23 12:53:23,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2023-12-23 12:53:23,389 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 12:53:23,389 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 12:53:23,411 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-23 12:53:23,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 12:53:23,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 12:53:23,601 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 12:53:23,601 INFO L85 PathProgramCache]: Analyzing trace with hash -705258342, now seen corresponding path program 1 times [2023-12-23 12:53:23,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 12:53:23,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1275978165] [2023-12-23 12:53:23,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 12:53:23,602 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 12:53:23,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 12:53:23,604 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 12:53:23,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-23 12:53:24,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 12:53:24,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-23 12:53:24,736 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 12:53:28,221 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-23 12:53:28,221 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 12:53:28,222 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 12:53:28,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1275978165] [2023-12-23 12:53:28,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1275978165] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 12:53:28,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 12:53:28,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-23 12:53:28,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612838710] [2023-12-23 12:53:28,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 12:53:28,223 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-23 12:53:28,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 12:53:28,224 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-23 12:53:28,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-23 12:53:28,224 INFO L87 Difference]: Start difference. First operand 76 states and 120 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-23 12:53:29,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 12:53:29,293 INFO L93 Difference]: Finished difference Result 150 states and 237 transitions. [2023-12-23 12:53:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-23 12:53:29,309 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 147 [2023-12-23 12:53:29,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 12:53:29,310 INFO L225 Difference]: With dead ends: 150 [2023-12-23 12:53:29,310 INFO L226 Difference]: Without dead ends: 75 [2023-12-23 12:53:29,311 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-23 12:53:29,312 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 162 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 158 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-12-23 12:53:29,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 158 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-12-23 12:53:29,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2023-12-23 12:53:29,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2023-12-23 12:53:29,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 51 states have (on average 1.3333333333333333) internal successors, (68), 51 states have internal predecessors, (68), 22 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2023-12-23 12:53:29,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 112 transitions. [2023-12-23 12:53:29,321 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 112 transitions. Word has length 147 [2023-12-23 12:53:29,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 12:53:29,324 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 112 transitions. [2023-12-23 12:53:29,324 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 4 states have internal predecessors, (40), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-23 12:53:29,324 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 112 transitions. [2023-12-23 12:53:29,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-23 12:53:29,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 12:53:29,328 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 12:53:29,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2023-12-23 12:53:29,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 12:53:29,543 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 12:53:29,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 12:53:29,543 INFO L85 PathProgramCache]: Analyzing trace with hash 2113067918, now seen corresponding path program 1 times [2023-12-23 12:53:29,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 12:53:29,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1578687674] [2023-12-23 12:53:29,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 12:53:29,544 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 12:53:29,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 12:53:29,545 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 12:53:29,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-12-23 12:53:30,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 12:53:30,667 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 12:53:30,671 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 12:53:37,777 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-23 12:53:37,778 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 12:53:37,778 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 12:53:37,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1578687674] [2023-12-23 12:53:37,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1578687674] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 12:53:37,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 12:53:37,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 12:53:37,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476828825] [2023-12-23 12:53:37,779 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 12:53:37,779 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 12:53:37,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 12:53:37,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 12:53:37,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 12:53:37,780 INFO L87 Difference]: Start difference. First operand 75 states and 112 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-23 12:53:38,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 12:53:38,807 INFO L93 Difference]: Finished difference Result 212 states and 319 transitions. [2023-12-23 12:53:38,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 12:53:38,811 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 148 [2023-12-23 12:53:38,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 12:53:38,813 INFO L225 Difference]: With dead ends: 212 [2023-12-23 12:53:38,813 INFO L226 Difference]: Without dead ends: 138 [2023-12-23 12:53:38,814 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 12:53:38,814 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 27 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 194 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-12-23 12:53:38,817 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 194 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-12-23 12:53:38,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138 states. [2023-12-23 12:53:38,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138 to 127. [2023-12-23 12:53:38,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 80 states have (on average 1.3) internal successors, (104), 80 states have internal predecessors, (104), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-23 12:53:38,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 192 transitions. [2023-12-23 12:53:38,854 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 192 transitions. Word has length 148 [2023-12-23 12:53:38,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 12:53:38,855 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 192 transitions. [2023-12-23 12:53:38,855 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-23 12:53:38,855 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 192 transitions. [2023-12-23 12:53:38,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2023-12-23 12:53:38,856 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 12:53:38,857 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 12:53:38,899 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-12-23 12:53:39,076 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 12:53:39,076 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 12:53:39,077 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 12:53:39,077 INFO L85 PathProgramCache]: Analyzing trace with hash 476031366, now seen corresponding path program 1 times [2023-12-23 12:53:39,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 12:53:39,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1518783002] [2023-12-23 12:53:39,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 12:53:39,078 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 12:53:39,078 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 12:53:39,079 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 12:53:39,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-12-23 12:53:40,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 12:53:40,191 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-23 12:53:40,194 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 12:53:47,000 INFO L134 CoverageAnalysis]: Checked inductivity of 924 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 924 trivial. 0 not checked. [2023-12-23 12:53:47,000 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-23 12:53:47,002 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-23 12:53:47,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1518783002] [2023-12-23 12:53:47,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1518783002] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-23 12:53:47,003 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-23 12:53:47,003 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-23 12:53:47,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572364294] [2023-12-23 12:53:47,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-23 12:53:47,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-23 12:53:47,004 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-23 12:53:47,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-23 12:53:47,005 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 12:53:47,005 INFO L87 Difference]: Start difference. First operand 127 states and 192 transitions. Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-23 12:53:49,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-23 12:53:49,630 INFO L93 Difference]: Finished difference Result 217 states and 325 transitions. [2023-12-23 12:53:49,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-23 12:53:49,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) Word has length 148 [2023-12-23 12:53:49,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-23 12:53:49,632 INFO L225 Difference]: With dead ends: 217 [2023-12-23 12:53:49,632 INFO L226 Difference]: Without dead ends: 135 [2023-12-23 12:53:49,635 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-23 12:53:49,638 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 17 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-12-23 12:53:49,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 192 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-12-23 12:53:49,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2023-12-23 12:53:49,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 127. [2023-12-23 12:53:49,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 80 states have (on average 1.275) internal successors, (102), 80 states have internal predecessors, (102), 44 states have call successors, (44), 2 states have call predecessors, (44), 2 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2023-12-23 12:53:49,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 190 transitions. [2023-12-23 12:53:49,649 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 190 transitions. Word has length 148 [2023-12-23 12:53:49,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-23 12:53:49,649 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 190 transitions. [2023-12-23 12:53:49,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 2 states have internal predecessors, (41), 1 states have call successors, (22), 1 states have call predecessors, (22), 1 states have return successors, (22), 1 states have call predecessors, (22), 1 states have call successors, (22) [2023-12-23 12:53:49,650 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 190 transitions. [2023-12-23 12:53:49,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-12-23 12:53:49,651 INFO L187 NwaCegarLoop]: Found error trace [2023-12-23 12:53:49,651 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-23 12:53:49,676 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-12-23 12:53:49,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 12:53:49,865 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-23 12:53:49,865 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-23 12:53:49,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1711526375, now seen corresponding path program 1 times [2023-12-23 12:53:49,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-23 12:53:49,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [501004744] [2023-12-23 12:53:49,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-23 12:53:49,866 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-23 12:53:49,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-23 12:53:49,867 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-23 12:53:49,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-12-23 12:53:51,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-23 12:53:51,130 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-23 12:53:51,135 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-23 12:56:00,129 WARN L293 SmtUtils]: Spent 5.20s on a formula simplification that was a NOOP. DAG size: 3 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-23 12:57:16,489 WARN L293 SmtUtils]: Spent 35.06s on a formula simplification that was a NOOP. DAG size: 67 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)