/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 true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-36.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 20:04:43,695 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 20:04:43,756 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 20:04:43,761 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 20:04:43,761 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 20:04:43,785 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 20:04:43,786 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 20:04:43,786 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 20:04:43,786 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 20:04:43,786 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 20:04:43,787 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 20:04:43,787 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 20:04:43,787 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 20:04:43,787 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 20:04:43,788 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 20:04:43,789 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 20:04:43,790 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 20:04:43,792 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 20:04:43,792 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 20:04:43,793 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 20:04:43,794 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 20:04:43,794 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 20:04:43,794 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 20:04:43,794 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 20:04:43,794 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 20:04:43,795 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 20:04:43,795 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 20:04:43,795 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 20:04:43,795 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 20:04:43,795 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 20:04:43,796 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 20:04:43,796 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 20:04:43,796 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:04:43,796 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 20:04:43,797 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 20:04:43,797 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 20:04:43,797 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 20:04:43,797 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 20:04:43,797 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 20:04:43,797 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 20:04:43,797 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 20:04:43,797 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 20:04:43,797 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 20:04:43,798 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 20:04:43,992 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 20:04:44,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 20:04:44,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 20:04:44,016 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 20:04:44,016 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 20:04:44,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-36.i [2023-12-15 20:04:45,073 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 20:04:45,277 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 20:04:45,277 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-36.i [2023-12-15 20:04:45,286 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d9aadef7/608afd8aae5543afb02ef64c613ba0fa/FLAG86d9d18f0 [2023-12-15 20:04:45,665 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5d9aadef7/608afd8aae5543afb02ef64c613ba0fa [2023-12-15 20:04:45,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 20:04:45,668 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 20:04:45,670 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 20:04:45,676 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 20:04:45,680 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 20:04:45,680 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:04:45" (1/1) ... [2023-12-15 20:04:45,682 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@425238f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:45, skipping insertion in model container [2023-12-15 20:04:45,682 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:04:45" (1/1) ... [2023-12-15 20:04:45,709 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 20:04:45,872 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_fillercodesize_ps-cn-50_file-36.i[915,928] [2023-12-15 20:04:45,972 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:04:45,985 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 20:04:46,000 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_fillercodesize_ps-cn-50_file-36.i[915,928] [2023-12-15 20:04:46,034 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:04:46,064 INFO L206 MainTranslator]: Completed translation [2023-12-15 20:04:46,066 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46 WrapperNode [2023-12-15 20:04:46,066 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 20:04:46,068 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 20:04:46,068 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 20:04:46,069 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 20:04:46,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46" (1/1) ... [2023-12-15 20:04:46,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46" (1/1) ... [2023-12-15 20:04:46,123 INFO L138 Inliner]: procedures = 26, calls = 59, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 284 [2023-12-15 20:04:46,123 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 20:04:46,124 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 20:04:46,124 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 20:04:46,124 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 20:04:46,134 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46" (1/1) ... [2023-12-15 20:04:46,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46" (1/1) ... [2023-12-15 20:04:46,145 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46" (1/1) ... [2023-12-15 20:04:46,167 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]. [2023-12-15 20:04:46,168 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46" (1/1) ... [2023-12-15 20:04:46,168 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46" (1/1) ... [2023-12-15 20:04:46,182 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46" (1/1) ... [2023-12-15 20:04:46,185 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46" (1/1) ... [2023-12-15 20:04:46,187 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46" (1/1) ... [2023-12-15 20:04:46,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46" (1/1) ... [2023-12-15 20:04:46,191 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 20:04:46,199 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 20:04:46,199 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 20:04:46,199 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 20:04:46,199 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46" (1/1) ... [2023-12-15 20:04:46,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:04:46,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:04:46,230 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) [2023-12-15 20:04:46,237 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 [2023-12-15 20:04:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 20:04:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 20:04:46,256 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 20:04:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 20:04:46,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 20:04:46,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 20:04:46,351 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 20:04:46,354 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 20:04:46,754 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 20:04:46,816 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 20:04:46,816 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 20:04:46,817 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:04:46 BoogieIcfgContainer [2023-12-15 20:04:46,817 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 20:04:46,818 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 20:04:46,818 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 20:04:46,820 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 20:04:46,820 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:04:45" (1/3) ... [2023-12-15 20:04:46,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103907a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:04:46, skipping insertion in model container [2023-12-15 20:04:46,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:04:46" (2/3) ... [2023-12-15 20:04:46,821 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@103907a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:04:46, skipping insertion in model container [2023-12-15 20:04:46,821 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:04:46" (3/3) ... [2023-12-15 20:04:46,822 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-36.i [2023-12-15 20:04:46,841 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 20:04:46,841 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 20:04:46,882 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 20:04:46,886 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;@17be70c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 20:04:46,886 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 20:04:46,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 67 states have (on average 1.4328358208955223) internal successors, (96), 68 states have internal predecessors, (96), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-15 20:04:46,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-12-15 20:04:46,900 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:04:46,901 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:04:46,901 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:04:46,904 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:04:46,904 INFO L85 PathProgramCache]: Analyzing trace with hash -195198655, now seen corresponding path program 1 times [2023-12-15 20:04:46,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:04:46,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965446164] [2023-12-15 20:04:46,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:04:46,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:04:46,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:04:47,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:04:47,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965446164] [2023-12-15 20:04:47,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 20:04:47,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316626384] [2023-12-15 20:04:47,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:04:47,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:04:47,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:04:47,058 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) [2023-12-15 20:04:47,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 20:04:47,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:04:47,215 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 20:04:47,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:04:47,290 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 90 proven. 0 refuted. 0 times theorem prover too weak. 4050 trivial. 0 not checked. [2023-12-15 20:04:47,290 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:04:47,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316626384] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:04:47,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:04:47,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 20:04:47,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567052793] [2023-12-15 20:04:47,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:04:47,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 20:04:47,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:04:47,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 20:04:47,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 20:04:47,334 INFO L87 Difference]: Start difference. First operand has 116 states, 67 states have (on average 1.4328358208955223) internal successors, (96), 68 states have internal predecessors, (96), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) Second operand has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) [2023-12-15 20:04:47,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:04:47,378 INFO L93 Difference]: Finished difference Result 229 states and 420 transitions. [2023-12-15 20:04:47,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 20:04:47,381 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) Word has length 283 [2023-12-15 20:04:47,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:04:47,386 INFO L225 Difference]: With dead ends: 229 [2023-12-15 20:04:47,386 INFO L226 Difference]: Without dead ends: 114 [2023-12-15 20:04:47,389 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 282 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 20:04:47,391 INFO L413 NwaCegarLoop]: 179 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, 179 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 [2023-12-15 20:04:47,392 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:04:47,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2023-12-15 20:04:47,438 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2023-12-15 20:04:47,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 66 states have (on average 1.3636363636363635) internal successors, (90), 66 states have internal predecessors, (90), 46 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 46 states have call predecessors, (46), 46 states have call successors, (46) [2023-12-15 20:04:47,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 182 transitions. [2023-12-15 20:04:47,448 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 182 transitions. Word has length 283 [2023-12-15 20:04:47,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:04:47,449 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 182 transitions. [2023-12-15 20:04:47,449 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 states have internal predecessors, (58), 2 states have call successors, (46), 2 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 2 states have call successors, (46) [2023-12-15 20:04:47,449 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 182 transitions. [2023-12-15 20:04:47,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2023-12-15 20:04:47,453 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:04:47,453 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:04:47,484 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-15 20:04:47,654 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 [2023-12-15 20:04:47,655 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:04:47,656 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:04:47,657 INFO L85 PathProgramCache]: Analyzing trace with hash 2090487529, now seen corresponding path program 1 times [2023-12-15 20:04:47,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:04:47,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255551741] [2023-12-15 20:04:47,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:04:47,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:04:47,739 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:04:47,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [596907975] [2023-12-15 20:04:47,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:04:47,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:04:47,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:04:47,747 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) [2023-12-15 20:04:47,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 20:04:47,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:04:47,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 20:04:47,942 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:04:47,983 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2023-12-15 20:04:47,983 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:04:47,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:04:47,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255551741] [2023-12-15 20:04:47,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:04:47,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [596907975] [2023-12-15 20:04:47,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [596907975] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:04:47,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:04:47,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 20:04:47,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [754666179] [2023-12-15 20:04:47,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:04:47,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 20:04:47,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:04:47,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 20:04:47,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:04:47,988 INFO L87 Difference]: Start difference. First operand 114 states and 182 transitions. Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2023-12-15 20:04:48,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:04:48,056 INFO L93 Difference]: Finished difference Result 271 states and 430 transitions. [2023-12-15 20:04:48,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 20:04:48,056 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 283 [2023-12-15 20:04:48,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:04:48,064 INFO L225 Difference]: With dead ends: 271 [2023-12-15 20:04:48,064 INFO L226 Difference]: Without dead ends: 158 [2023-12-15 20:04:48,067 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 281 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:04:48,069 INFO L413 NwaCegarLoop]: 230 mSDtfsCounter, 118 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 20:04:48,070 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 351 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:04:48,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2023-12-15 20:04:48,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 157. [2023-12-15 20:04:48,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 84 states have (on average 1.2738095238095237) internal successors, (107), 85 states have internal predecessors, (107), 70 states have call successors, (70), 2 states have call predecessors, (70), 2 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-15 20:04:48,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 247 transitions. [2023-12-15 20:04:48,118 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 247 transitions. Word has length 283 [2023-12-15 20:04:48,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:04:48,120 INFO L495 AbstractCegarLoop]: Abstraction has 157 states and 247 transitions. [2023-12-15 20:04:48,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 3 states have internal predecessors, (56), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2023-12-15 20:04:48,120 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 247 transitions. [2023-12-15 20:04:48,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2023-12-15 20:04:48,128 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:04:48,128 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:04:48,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-15 20:04:48,334 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 [2023-12-15 20:04:48,334 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:04:48,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:04:48,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1739379852, now seen corresponding path program 1 times [2023-12-15 20:04:48,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:04:48,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364725366] [2023-12-15 20:04:48,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:04:48,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:04:48,375 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:04:48,375 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1580367661] [2023-12-15 20:04:48,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:04:48,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:04:48,376 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:04:48,377 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) [2023-12-15 20:04:48,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 20:04:48,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:04:48,541 INFO L262 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 11 conjunts are in the unsatisfiable core [2023-12-15 20:04:48,545 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:04:48,687 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 783 proven. 12 refuted. 0 times theorem prover too weak. 3345 trivial. 0 not checked. [2023-12-15 20:04:48,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:04:48,902 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 123 proven. 12 refuted. 0 times theorem prover too weak. 4005 trivial. 0 not checked. [2023-12-15 20:04:48,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:04:48,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364725366] [2023-12-15 20:04:48,902 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:04:48,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580367661] [2023-12-15 20:04:48,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580367661] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:04:48,903 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:04:48,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2023-12-15 20:04:48,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866082359] [2023-12-15 20:04:48,903 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:04:48,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-12-15 20:04:48,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:04:48,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-12-15 20:04:48,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2023-12-15 20:04:48,905 INFO L87 Difference]: Start difference. First operand 157 states and 247 transitions. Second operand has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 states have internal predecessors, (75), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2023-12-15 20:04:49,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:04:49,839 INFO L93 Difference]: Finished difference Result 399 states and 610 transitions. [2023-12-15 20:04:49,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2023-12-15 20:04:49,839 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 states have internal predecessors, (75), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 284 [2023-12-15 20:04:49,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:04:49,841 INFO L225 Difference]: With dead ends: 399 [2023-12-15 20:04:49,841 INFO L226 Difference]: Without dead ends: 282 [2023-12-15 20:04:49,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 584 GetRequests, 552 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=294, Invalid=762, Unknown=0, NotChecked=0, Total=1056 [2023-12-15 20:04:49,843 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 467 mSDsluCounter, 404 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 554 SdHoareTripleChecker+Valid, 582 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-12-15 20:04:49,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [554 Valid, 582 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 1013 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-12-15 20:04:49,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2023-12-15 20:04:49,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 223. [2023-12-15 20:04:49,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223 states, 132 states have (on average 1.3106060606060606) internal successors, (173), 133 states have internal predecessors, (173), 85 states have call successors, (85), 5 states have call predecessors, (85), 5 states have return successors, (85), 84 states have call predecessors, (85), 85 states have call successors, (85) [2023-12-15 20:04:49,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 343 transitions. [2023-12-15 20:04:49,862 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 343 transitions. Word has length 284 [2023-12-15 20:04:49,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:04:49,863 INFO L495 AbstractCegarLoop]: Abstraction has 223 states and 343 transitions. [2023-12-15 20:04:49,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 15 states have internal predecessors, (75), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2023-12-15 20:04:49,863 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 343 transitions. [2023-12-15 20:04:49,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-15 20:04:49,865 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:04:49,865 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:04:49,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-15 20:04:50,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:04:50,096 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:04:50,097 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:04:50,097 INFO L85 PathProgramCache]: Analyzing trace with hash 2130972718, now seen corresponding path program 1 times [2023-12-15 20:04:50,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:04:50,097 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974190240] [2023-12-15 20:04:50,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:04:50,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:04:50,165 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:04:50,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [474331973] [2023-12-15 20:04:50,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:04:50,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:04:50,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:04:50,178 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:04:50,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 20:04:50,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:04:50,343 INFO L262 TraceCheckSpWp]: Trace formula consists of 631 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 20:04:50,347 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:04:50,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4140 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4140 trivial. 0 not checked. [2023-12-15 20:04:50,392 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:04:50,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:04:50,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974190240] [2023-12-15 20:04:50,392 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:04:50,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474331973] [2023-12-15 20:04:50,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474331973] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:04:50,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:04:50,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 20:04:50,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548968015] [2023-12-15 20:04:50,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:04:50,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 20:04:50,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:04:50,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 20:04:50,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 20:04:50,394 INFO L87 Difference]: Start difference. First operand 223 states and 343 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2023-12-15 20:04:50,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:04:50,601 INFO L93 Difference]: Finished difference Result 562 states and 865 transitions. [2023-12-15 20:04:50,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-15 20:04:50,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) Word has length 285 [2023-12-15 20:04:50,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:04:50,604 INFO L225 Difference]: With dead ends: 562 [2023-12-15 20:04:50,604 INFO L226 Difference]: Without dead ends: 340 [2023-12-15 20:04:50,605 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 280 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 20:04:50,605 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 292 mSDsluCounter, 525 mSDsCounter, 0 mSdLazyCounter, 234 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 292 SdHoareTripleChecker+Valid, 753 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 234 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 20:04:50,606 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [292 Valid, 753 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 234 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 20:04:50,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 340 states. [2023-12-15 20:04:50,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 340 to 226. [2023-12-15 20:04:50,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 135 states have (on average 1.3111111111111111) internal successors, (177), 136 states have internal predecessors, (177), 85 states have call successors, (85), 5 states have call predecessors, (85), 5 states have return successors, (85), 84 states have call predecessors, (85), 85 states have call successors, (85) [2023-12-15 20:04:50,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 347 transitions. [2023-12-15 20:04:50,625 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 347 transitions. Word has length 285 [2023-12-15 20:04:50,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:04:50,626 INFO L495 AbstractCegarLoop]: Abstraction has 226 states and 347 transitions. [2023-12-15 20:04:50,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 1 states have call successors, (46), 1 states have call predecessors, (46), 1 states have return successors, (46), 1 states have call predecessors, (46), 1 states have call successors, (46) [2023-12-15 20:04:50,626 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 347 transitions. [2023-12-15 20:04:50,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 286 [2023-12-15 20:04:50,628 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:04:50,628 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:04:50,638 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 20:04:50,835 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:04:50,835 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:04:50,836 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:04:50,836 INFO L85 PathProgramCache]: Analyzing trace with hash -1346346128, now seen corresponding path program 1 times [2023-12-15 20:04:50,836 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:04:50,836 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292293558] [2023-12-15 20:04:50,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:04:50,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:04:50,882 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:04:50,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [582182393] [2023-12-15 20:04:50,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:04:50,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:04:50,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:04:50,898 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:04:50,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Received shutdown request... [2023-12-15 20:06:06,752 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 20:06:06,764 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 [2023-12-15 20:06:07,773 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 0 [2023-12-15 20:06:07,953 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2023-12-15 20:06:07,958 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-15 20:06:07,959 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 20:06:07,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:06:07,960 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 286 with TraceHistMax 46,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-15 20:06:07,963 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-15 20:06:07,970 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2023-12-15 20:06:07,975 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 20:06:07,979 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 08:06:07 BoogieIcfgContainer [2023-12-15 20:06:07,979 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 20:06:07,979 INFO L158 Benchmark]: Toolchain (without parser) took 82311.69ms. Allocated memory is still 335.5MB. Free memory was 296.0MB in the beginning and 127.7MB in the end (delta: 168.3MB). Peak memory consumption was 169.3MB. Max. memory is 8.0GB. [2023-12-15 20:06:07,979 INFO L158 Benchmark]: CDTParser took 0.40ms. Allocated memory is still 207.6MB. Free memory is still 154.7MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 20:06:07,996 INFO L158 Benchmark]: CACSL2BoogieTranslator took 396.87ms. Allocated memory is still 335.5MB. Free memory was 295.6MB in the beginning and 278.3MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-15 20:06:07,996 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.68ms. Allocated memory is still 335.5MB. Free memory was 278.3MB in the beginning and 273.6MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 20:06:07,996 INFO L158 Benchmark]: Boogie Preprocessor took 67.12ms. Allocated memory is still 335.5MB. Free memory was 273.6MB in the beginning and 267.7MB in the end (delta: 5.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. [2023-12-15 20:06:07,997 INFO L158 Benchmark]: RCFGBuilder took 618.16ms. Allocated memory is still 335.5MB. Free memory was 267.7MB in the beginning and 303.7MB in the end (delta: -36.0MB). Peak memory consumption was 38.5MB. Max. memory is 8.0GB. [2023-12-15 20:06:07,997 INFO L158 Benchmark]: TraceAbstraction took 81160.74ms. Allocated memory is still 335.5MB. Free memory was 303.1MB in the beginning and 127.7MB in the end (delta: 175.4MB). Peak memory consumption was 174.9MB. Max. memory is 8.0GB. [2023-12-15 20:06:07,998 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.40ms. Allocated memory is still 207.6MB. Free memory is still 154.7MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 396.87ms. Allocated memory is still 335.5MB. Free memory was 295.6MB in the beginning and 278.3MB in the end (delta: 17.3MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.68ms. Allocated memory is still 335.5MB. Free memory was 278.3MB in the beginning and 273.6MB in the end (delta: 4.7MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 67.12ms. Allocated memory is still 335.5MB. Free memory was 273.6MB in the beginning and 267.7MB in the end (delta: 5.9MB). Peak memory consumption was 5.2MB. Max. memory is 8.0GB. * RCFGBuilder took 618.16ms. Allocated memory is still 335.5MB. Free memory was 267.7MB in the beginning and 303.7MB in the end (delta: -36.0MB). Peak memory consumption was 38.5MB. Max. memory is 8.0GB. * TraceAbstraction took 81160.74ms. Allocated memory is still 335.5MB. Free memory was 303.1MB in the beginning and 127.7MB in the end (delta: 175.4MB). Peak memory consumption was 174.9MB. 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 286 with TraceHistMax 46,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 116 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 81.1s, OverallIterations: 5, TraceHistogramMax: 46, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 964 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 877 mSDsluCounter, 1865 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1050 mSDsCounter, 346 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1273 IncrementalHoareTripleChecker+Invalid, 1619 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 346 mSolverCounterUnsat, 815 mSDtfsCounter, 1273 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1432 GetRequests, 1395 SyntacticMatches, 1 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=4, InterpolantAutomatonStates: 36, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 174 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 1418 NumberOfCodeBlocks, 1418 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 1414 ConstructedInterpolants, 0 QuantifiedInterpolants, 1850 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2515 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 5 InterpolantComputations, 3 PerfectInterpolantSequences, 20676/20700 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