/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_Default.epf --cacsl2boogietranslator.use.bitabs.translation false -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 21:05:11,684 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 21:05:11,719 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 21:05:11,722 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 21:05:11,722 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 21:05:11,736 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 21:05:11,736 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 21:05:11,737 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 21:05:11,737 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 21:05:11,737 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 21:05:11,738 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 21:05:11,738 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 21:05:11,738 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 21:05:11,738 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 21:05:11,739 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 21:05:11,739 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 21:05:11,739 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 21:05:11,739 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 21:05:11,739 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 21:05:11,740 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 21:05:11,740 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 21:05:11,740 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 21:05:11,740 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 21:05:11,741 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 21:05:11,741 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 21:05:11,741 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 21:05:11,741 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 21:05:11,741 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 21:05:11,742 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 21:05:11,742 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 21:05:11,742 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 21:05:11,742 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 21:05:11,742 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 21:05:11,742 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 21:05:11,743 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 21:05:11,743 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 21:05:11,743 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 21:05:11,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 21:05:11,743 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 21:05:11,743 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 21:05:11,743 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 21:05:11,744 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 21:05:11,744 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 21:05:11,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-20 21:05:11,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 21:05:11,950 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 21:05:11,951 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 21:05:11,952 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 21:05:11,952 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 21:05:11,953 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i [2023-12-20 21:05:13,038 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 21:05:13,193 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 21:05:13,194 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i [2023-12-20 21:05:13,203 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab83ff1ba/4c7c82a3d47348b1a66ebf07fee0ce33/FLAGecc0642d1 [2023-12-20 21:05:13,213 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab83ff1ba/4c7c82a3d47348b1a66ebf07fee0ce33 [2023-12-20 21:05:13,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 21:05:13,216 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 21:05:13,217 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 21:05:13,217 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 21:05:13,220 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 21:05:13,221 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cf03871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13, skipping insertion in model container [2023-12-20 21:05:13,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,255 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 21:05:13,347 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-cn_file-10.i[919,932] [2023-12-20 21:05:13,403 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 21:05:13,412 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 21:05:13,420 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-cn_file-10.i[919,932] [2023-12-20 21:05:13,472 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 21:05:13,486 INFO L206 MainTranslator]: Completed translation [2023-12-20 21:05:13,487 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13 WrapperNode [2023-12-20 21:05:13,487 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 21:05:13,490 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 21:05:13,490 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 21:05:13,490 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 21:05:13,495 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,514 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,558 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 297 [2023-12-20 21:05:13,559 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 21:05:13,559 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 21:05:13,560 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 21:05:13,560 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 21:05:13,568 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,568 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,571 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,592 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]. [2023-12-20 21:05:13,593 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,593 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,603 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,606 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,609 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,610 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,615 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 21:05:13,616 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 21:05:13,616 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 21:05:13,616 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 21:05:13,617 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13" (1/1) ... [2023-12-20 21:05:13,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 21:05:13,629 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 21:05:13,661 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) [2023-12-20 21:05:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 21:05:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-20 21:05:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-20 21:05:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 21:05:13,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 21:05:13,684 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 21:05:13,688 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 [2023-12-20 21:05:13,788 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 21:05:13,790 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 21:05:14,196 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 21:05:14,216 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 21:05:14,216 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 21:05:14,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 09:05:14 BoogieIcfgContainer [2023-12-20 21:05:14,217 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 21:05:14,218 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 21:05:14,218 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 21:05:14,220 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 21:05:14,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 09:05:13" (1/3) ... [2023-12-20 21:05:14,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e55e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 09:05:14, skipping insertion in model container [2023-12-20 21:05:14,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 09:05:13" (2/3) ... [2023-12-20 21:05:14,221 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19e55e88 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 09:05:14, skipping insertion in model container [2023-12-20 21:05:14,221 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 09:05:14" (3/3) ... [2023-12-20 21:05:14,222 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pr-cn_file-10.i [2023-12-20 21:05:14,234 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 21:05:14,234 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 21:05:14,276 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 21:05:14,281 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;@530466be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 21:05:14,281 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 21:05:14,285 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 67 states have internal predecessors, (94), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-20 21:05:14,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-12-20 21:05:14,309 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 21:05:14,310 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 21:05:14,311 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 21:05:14,314 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 21:05:14,314 INFO L85 PathProgramCache]: Analyzing trace with hash -1164765764, now seen corresponding path program 1 times [2023-12-20 21:05:14,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 21:05:14,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094809191] [2023-12-20 21:05:14,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:05:14,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 21:05:14,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:05:14,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 21:05:14,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094809191] [2023-12-20 21:05:14,514 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-20 21:05:14,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053732267] [2023-12-20 21:05:14,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:05:14,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 21:05:14,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 21:05:14,527 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 21:05:14,562 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 21:05:14,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:05:14,700 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-20 21:05:14,709 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 21:05:14,774 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 4418 trivial. 0 not checked. [2023-12-20 21:05:14,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 21:05:14,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053732267] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 21:05:14,775 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 21:05:14,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-20 21:05:14,777 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043457066] [2023-12-20 21:05:14,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 21:05:14,796 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-20 21:05:14,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 21:05:14,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-20 21:05:14,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 21:05:14,817 INFO L87 Difference]: Start difference. First operand has 117 states, 66 states have (on average 1.4242424242424243) internal successors, (94), 67 states have internal predecessors, (94), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-20 21:05:14,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 21:05:14,855 INFO L93 Difference]: Finished difference Result 231 states and 426 transitions. [2023-12-20 21:05:14,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-20 21:05:14,857 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 290 [2023-12-20 21:05:14,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 21:05:14,863 INFO L225 Difference]: With dead ends: 231 [2023-12-20 21:05:14,863 INFO L226 Difference]: Without dead ends: 115 [2023-12-20 21:05:14,866 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 289 GetRequests, 289 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-20 21:05:14,868 INFO L413 NwaCegarLoop]: 182 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-20 21:05:14,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 182 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-20 21:05:14,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-20 21:05:14,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-12-20 21:05:14,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 65 states have (on average 1.3692307692307693) internal successors, (89), 65 states have internal predecessors, (89), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2023-12-20 21:05:14,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 185 transitions. [2023-12-20 21:05:14,907 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 185 transitions. Word has length 290 [2023-12-20 21:05:14,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 21:05:14,908 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 185 transitions. [2023-12-20 21:05:14,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (48), 2 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2023-12-20 21:05:14,908 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 185 transitions. [2023-12-20 21:05:14,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2023-12-20 21:05:14,911 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 21:05:14,912 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 21:05:14,918 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 21:05:15,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-20 21:05:15,119 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 21:05:15,119 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 21:05:15,119 INFO L85 PathProgramCache]: Analyzing trace with hash -2012448316, now seen corresponding path program 1 times [2023-12-20 21:05:15,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 21:05:15,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [779388837] [2023-12-20 21:05:15,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:05:15,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 21:05:15,238 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 21:05:15,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [836299988] [2023-12-20 21:05:15,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:05:15,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 21:05:15,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 21:05:15,250 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 21:05:15,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 21:05:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:05:15,423 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-20 21:05:15,433 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 21:05:15,718 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2023-12-20 21:05:15,718 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 21:05:15,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 21:05:15,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [779388837] [2023-12-20 21:05:15,719 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 21:05:15,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836299988] [2023-12-20 21:05:15,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836299988] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 21:05:15,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 21:05:15,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-20 21:05:15,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017251192] [2023-12-20 21:05:15,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 21:05:15,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-20 21:05:15,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 21:05:15,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-20 21:05:15,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-20 21:05:15,724 INFO L87 Difference]: Start difference. First operand 115 states and 185 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-20 21:05:15,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 21:05:15,913 INFO L93 Difference]: Finished difference Result 344 states and 554 transitions. [2023-12-20 21:05:15,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-20 21:05:15,914 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 290 [2023-12-20 21:05:15,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 21:05:15,917 INFO L225 Difference]: With dead ends: 344 [2023-12-20 21:05:15,917 INFO L226 Difference]: Without dead ends: 230 [2023-12-20 21:05:15,918 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 287 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-20 21:05:15,919 INFO L413 NwaCegarLoop]: 179 mSDtfsCounter, 92 mSDsluCounter, 354 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 533 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 21:05:15,919 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 533 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 21:05:15,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2023-12-20 21:05:15,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 195. [2023-12-20 21:05:15,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 96 states have (on average 1.25) internal successors, (120), 96 states have internal predecessors, (120), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2023-12-20 21:05:15,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 312 transitions. [2023-12-20 21:05:15,950 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 312 transitions. Word has length 290 [2023-12-20 21:05:15,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 21:05:15,951 INFO L495 AbstractCegarLoop]: Abstraction has 195 states and 312 transitions. [2023-12-20 21:05:15,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2023-12-20 21:05:15,952 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 312 transitions. [2023-12-20 21:05:15,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2023-12-20 21:05:15,954 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 21:05:15,954 INFO L195 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 21:05:15,965 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-20 21:05:16,160 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-20 21:05:16,161 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 21:05:16,161 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 21:05:16,161 INFO L85 PathProgramCache]: Analyzing trace with hash -1815971902, now seen corresponding path program 1 times [2023-12-20 21:05:16,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 21:05:16,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288880800] [2023-12-20 21:05:16,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:05:16,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 21:05:16,218 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 21:05:16,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [827738063] [2023-12-20 21:05:16,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 21:05:16,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 21:05:16,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 21:05:16,219 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-20 21:05:16,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 21:05:16,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 21:05:16,397 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 74 conjunts are in the unsatisfiable core [2023-12-20 21:05:16,404 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 21:05:25,623 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 1827 proven. 828 refuted. 0 times theorem prover too weak. 1857 trivial. 0 not checked. [2023-12-20 21:05:25,623 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 21:08:23,722 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:08:59,529 WARN L293 SmtUtils]: Spent 5.96s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:09:12,236 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:09:20,114 WARN L293 SmtUtils]: Spent 7.88s on a formula simplification. DAG size of input: 14 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:09:33,704 WARN L293 SmtUtils]: Spent 5.54s on a formula simplification. DAG size of input: 13 DAG size of output: 1 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:15:15,250 WARN L293 SmtUtils]: Spent 5.18s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:15:45,890 WARN L293 SmtUtils]: Spent 6.70s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:16:07,907 WARN L293 SmtUtils]: Spent 8.05s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:16:32,557 WARN L293 SmtUtils]: Spent 6.36s 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) [2023-12-20 21:17:42,450 WARN L293 SmtUtils]: Spent 6.59s 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) [2023-12-20 21:18:23,182 WARN L293 SmtUtils]: Spent 8.03s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:18:29,372 WARN L293 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 16 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2023-12-20 21:19:42,243 WARN L293 SmtUtils]: Spent 6.61s on a formula simplification that was a NOOP. DAG size: 13 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Received shutdown request... [2023-12-20 21:19:50,015 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 [2023-12-20 21:19:50,015 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-20 21:19:51,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 21:19:51,216 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forcibly destroying the process [2023-12-20 21:19:51,284 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 21:19:51,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-12-20 21:19:51,285 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 292 with TraceHistMax 48,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2023-12-20 21:19:51,288 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-20 21:19:51,289 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 21:19:51,291 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 09:19:51 BoogieIcfgContainer [2023-12-20 21:19:51,291 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 21:19:51,292 INFO L158 Benchmark]: Toolchain (without parser) took 878075.64ms. Allocated memory was 286.3MB in the beginning and 765.5MB in the end (delta: 479.2MB). Free memory was 236.3MB in the beginning and 303.6MB in the end (delta: -67.3MB). Peak memory consumption was 451.6MB. Max. memory is 8.0GB. [2023-12-20 21:19:51,292 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 21:19:51,292 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.36ms. Allocated memory is still 286.3MB. Free memory was 235.8MB in the beginning and 219.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-20 21:19:51,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 137 [2023-12-20 21:19:51,295 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.16ms. Allocated memory is still 286.3MB. Free memory was 219.0MB in the beginning and 213.8MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-20 21:19:51,295 INFO L158 Benchmark]: Boogie Preprocessor took 55.90ms. Allocated memory is still 286.3MB. Free memory was 213.8MB in the beginning and 205.9MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-20 21:19:51,295 INFO L158 Benchmark]: RCFGBuilder took 600.70ms. Allocated memory is still 286.3MB. Free memory was 205.4MB in the beginning and 171.8MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. [2023-12-20 21:19:51,296 INFO L158 Benchmark]: TraceAbstraction took 877073.08ms. Allocated memory was 286.3MB in the beginning and 765.5MB in the end (delta: 479.2MB). Free memory was 171.3MB in the beginning and 303.6MB in the end (delta: -132.3MB). Peak memory consumption was 386.6MB. Max. memory is 8.0GB. [2023-12-20 21:19:51,297 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 187.7MB. Free memory is still 141.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 270.36ms. Allocated memory is still 286.3MB. Free memory was 235.8MB in the beginning and 219.0MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 69.16ms. Allocated memory is still 286.3MB. Free memory was 219.0MB in the beginning and 213.8MB in the end (delta: 5.2MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 55.90ms. Allocated memory is still 286.3MB. Free memory was 213.8MB in the beginning and 205.9MB in the end (delta: 7.9MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 600.70ms. Allocated memory is still 286.3MB. Free memory was 205.4MB in the beginning and 171.8MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 8.0GB. * TraceAbstraction took 877073.08ms. Allocated memory was 286.3MB in the beginning and 765.5MB in the end (delta: 479.2MB). Free memory was 171.3MB in the beginning and 303.6MB in the end (delta: -132.3MB). Peak memory consumption was 386.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 19]: Timeout (TraceAbstraction) Unable to prove that a call to reach_error is unreachable (line 19). Cancelled while NwaCegarLoop was analyzing trace of length 292 with TraceHistMax 48,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 117 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 877.0s, OverallIterations: 3, TraceHistogramMax: 48, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 92 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 92 mSDsluCounter, 715 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 354 mSDsCounter, 97 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 97 mSolverCounterUnsat, 361 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 579 GetRequests, 576 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=195occurred in iteration=2, InterpolantAutomatonStates: 6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 35 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 870 NumberOfCodeBlocks, 870 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 578 ConstructedInterpolants, 0 QuantifiedInterpolants, 1114 SizeOfPredicates, 1 NumberOfNonLiveVariables, 1262 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 9024/9024 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown