/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-ci_file-90.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 11:47:34,727 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 11:47:34,764 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Bitvector.epf [2023-12-16 11:47:34,767 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 11:47:34,768 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 11:47:34,782 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 11:47:34,782 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 11:47:34,782 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 11:47:34,783 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 11:47:34,783 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 11:47:34,783 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 11:47:34,784 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 11:47:34,784 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 11:47:34,786 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 11:47:34,787 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 11:47:34,788 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 11:47:34,788 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 11:47:34,788 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 11:47:34,788 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 11:47:34,788 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 11:47:34,788 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 11:47:34,789 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 11:47:34,789 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 11:47:34,789 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-12-16 11:47:34,789 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-12-16 11:47:34,789 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 11:47:34,790 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-12-16 11:47:34,790 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 11:47:34,790 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 11:47:34,790 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 11:47:34,791 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 11:47:34,791 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 11:47:34,791 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 11:47:34,792 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 11:47:34,792 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:47:34,792 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 11:47:34,792 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 11:47:34,792 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 11:47:34,792 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-12-16 11:47:34,792 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-12-16 11:47:34,792 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 11:47:34,793 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 11:47:34,793 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 11:47:34,793 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 11:47:34,793 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 11:47:34,793 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-12-16 11:47:34,793 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-12-16 11:47:34,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 11:47:35,004 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 11:47:35,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 11:47:35,007 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 11:47:35,010 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 11:47:35,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-90.i [2023-12-16 11:47:36,029 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 11:47:36,238 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 11:47:36,238 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-90.i [2023-12-16 11:47:36,250 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf274909d/52fb9eb277c84a65be383047b1570f28/FLAG9e5d85163 [2023-12-16 11:47:36,266 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf274909d/52fb9eb277c84a65be383047b1570f28 [2023-12-16 11:47:36,268 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 11:47:36,269 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 11:47:36,270 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 11:47:36,270 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 11:47:36,275 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 11:47:36,276 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,277 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a7654d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36, skipping insertion in model container [2023-12-16 11:47:36,277 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,303 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 11:47:36,425 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-ci_file-90.i[919,932] [2023-12-16 11:47:36,493 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:47:36,504 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 11:47:36,513 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-ci_file-90.i[919,932] [2023-12-16 11:47:36,542 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 11:47:36,555 INFO L206 MainTranslator]: Completed translation [2023-12-16 11:47:36,555 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36 WrapperNode [2023-12-16 11:47:36,555 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 11:47:36,556 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 11:47:36,556 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 11:47:36,556 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 11:47:36,561 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,572 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,618 INFO L138 Inliner]: procedures = 27, calls = 49, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 213 [2023-12-16 11:47:36,618 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 11:47:36,619 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 11:47:36,619 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 11:47:36,619 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 11:47:36,629 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,632 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,643 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 11:47:36,643 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,649 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,657 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,660 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,662 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,663 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,666 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 11:47:36,667 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 11:47:36,667 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 11:47:36,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 11:47:36,667 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36" (1/1) ... [2023-12-16 11:47:36,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 11:47:36,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 11:47:36,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 11:47:36,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 11:47:36,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 11:47:36,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-12-16 11:47:36,752 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 11:47:36,753 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 11:47:36,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 11:47:36,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 11:47:36,837 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 11:47:36,840 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 11:47:37,668 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 11:47:37,700 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 11:47:37,700 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 11:47:37,701 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:47:37 BoogieIcfgContainer [2023-12-16 11:47:37,701 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 11:47:37,702 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 11:47:37,702 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 11:47:37,705 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 11:47:37,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 11:47:36" (1/3) ... [2023-12-16 11:47:37,705 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ed70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:47:37, skipping insertion in model container [2023-12-16 11:47:37,705 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 11:47:36" (2/3) ... [2023-12-16 11:47:37,706 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46ed70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 11:47:37, skipping insertion in model container [2023-12-16 11:47:37,706 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 11:47:37" (3/3) ... [2023-12-16 11:47:37,706 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-90.i [2023-12-16 11:47:37,718 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 11:47:37,718 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 11:47:37,759 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 11:47:37,765 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;@222871, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 11:47:37,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 11:47:37,768 INFO L276 IsEmpty]: Start isEmpty. Operand has 91 states, 52 states have (on average 1.5) internal successors, (78), 53 states have internal predecessors, (78), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) [2023-12-16 11:47:37,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-16 11:47:37,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:47:37,782 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:47:37,782 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:47:37,786 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:47:37,786 INFO L85 PathProgramCache]: Analyzing trace with hash -441231510, now seen corresponding path program 1 times [2023-12-16 11:47:37,795 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:47:37,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1630066386] [2023-12-16 11:47:37,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:47:37,796 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:47:37,796 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:47:37,801 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 11:47:37,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-12-16 11:47:38,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:47:38,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-16 11:47:38,151 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:47:38,282 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2520 trivial. 0 not checked. [2023-12-16 11:47:38,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 11:47:38,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:47:38,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1630066386] [2023-12-16 11:47:38,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1630066386] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 11:47:38,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 11:47:38,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-16 11:47:38,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154709528] [2023-12-16 11:47:38,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 11:47:38,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 11:47:38,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-12-16 11:47:38,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 11:47:38,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:47:38,323 INFO L87 Difference]: Start difference. First operand has 91 states, 52 states have (on average 1.5) internal successors, (78), 53 states have internal predecessors, (78), 36 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 36 states have call predecessors, (36), 36 states have call successors, (36) Second operand has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-16 11:47:38,752 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 11:47:38,753 INFO L93 Difference]: Finished difference Result 218 states and 410 transitions. [2023-12-16 11:47:38,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 11:47:38,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) Word has length 218 [2023-12-16 11:47:38,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 11:47:38,775 INFO L225 Difference]: With dead ends: 218 [2023-12-16 11:47:38,777 INFO L226 Difference]: Without dead ends: 128 [2023-12-16 11:47:38,783 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 11:47:38,788 INFO L413 NwaCegarLoop]: 147 mSDtfsCounter, 54 mSDsluCounter, 128 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 11:47:38,789 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 275 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 11:47:38,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2023-12-16 11:47:38,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 125. [2023-12-16 11:47:38,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 74 states have (on average 1.4054054054054055) internal successors, (104), 75 states have internal predecessors, (104), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 47 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-16 11:47:38,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 200 transitions. [2023-12-16 11:47:38,858 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 200 transitions. Word has length 218 [2023-12-16 11:47:38,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 11:47:38,860 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 200 transitions. [2023-12-16 11:47:38,861 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 1 states have call successors, (36), 1 states have call predecessors, (36), 1 states have return successors, (36), 1 states have call predecessors, (36), 1 states have call successors, (36) [2023-12-16 11:47:38,861 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 200 transitions. [2023-12-16 11:47:38,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-16 11:47:38,868 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 11:47:38,868 INFO L195 NwaCegarLoop]: trace histogram [36, 36, 36, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 11:47:38,882 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2023-12-16 11:47:39,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:47:39,070 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 11:47:39,070 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 11:47:39,070 INFO L85 PathProgramCache]: Analyzing trace with hash -439384468, now seen corresponding path program 1 times [2023-12-16 11:47:39,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-12-16 11:47:39,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [997008878] [2023-12-16 11:47:39,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:47:39,071 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-12-16 11:47:39,071 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2023-12-16 11:47:39,072 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-12-16 11:47:39,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-12-16 11:47:39,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:47:39,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 10 conjunts are in the unsatisfiable core [2023-12-16 11:47:39,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 11:47:40,561 INFO L134 CoverageAnalysis]: Checked inductivity of 2520 backedges. 1067 proven. 156 refuted. 0 times theorem prover too weak. 1297 trivial. 0 not checked. [2023-12-16 11:47:40,561 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 11:47:41,003 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-12-16 11:47:41,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [997008878] [2023-12-16 11:47:41,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [997008878] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 11:47:41,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1051485601] [2023-12-16 11:47:41,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 11:47:41,004 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-12-16 11:47:41,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 [2023-12-16 11:47:41,041 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-12-16 11:47:41,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2023-12-16 11:47:42,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 11:47:42,039 INFO L262 TraceCheckSpWp]: Trace formula consists of 357 conjuncts, 19 conjunts are in the unsatisfiable core [2023-12-16 11:47:42,045 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 11:48:36,312 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:48:36,321 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 (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:48:36,321 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 11:48:37,343 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/cvc4 --incremental --print-success --lang smt (4)] Ended with exit code 0 [2023-12-16 11:48:37,373 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 11:48:37,394 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown