/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-ps-co_file-86.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 03:28:48,056 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 03:28:48,094 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-16 03:28:48,097 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 03:28:48,097 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 03:28:48,111 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 03:28:48,111 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 03:28:48,112 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 03:28:48,112 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 03:28:48,115 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 03:28:48,115 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 03:28:48,116 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 03:28:48,116 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 03:28:48,117 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 03:28:48,117 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 03:28:48,117 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 03:28:48,118 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 03:28:48,118 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 03:28:48,118 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 03:28:48,118 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 03:28:48,119 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 03:28:48,119 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 03:28:48,119 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 03:28:48,120 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 03:28:48,120 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 03:28:48,120 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 03:28:48,120 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 03:28:48,121 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 03:28:48,121 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 03:28:48,121 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 03:28:48,122 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 03:28:48,122 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 03:28:48,122 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:28:48,122 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 03:28:48,122 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 03:28:48,122 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 03:28:48,123 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 03:28:48,123 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 03:28:48,123 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 03:28:48,123 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 03:28:48,123 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 03:28:48,123 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 03:28:48,123 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 03:28:48,124 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 03:28:48,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 03:28:48,339 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 03:28:48,341 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 03:28:48,341 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 03:28:48,341 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 03:28:48,342 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i [2023-12-16 03:28:49,585 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 03:28:49,736 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 03:28:49,737 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i [2023-12-16 03:28:49,743 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8924233a/14fb5e2cf96c484ca6b8955512f8c560/FLAGd4d90aaad [2023-12-16 03:28:49,752 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c8924233a/14fb5e2cf96c484ca6b8955512f8c560 [2023-12-16 03:28:49,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 03:28:49,755 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 03:28:49,755 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 03:28:49,756 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 03:28:49,758 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 03:28:49,759 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:28:49" (1/1) ... [2023-12-16 03:28:49,759 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71ad6308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:49, skipping insertion in model container [2023-12-16 03:28:49,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 03:28:49" (1/1) ... [2023-12-16 03:28:49,799 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 03:28:49,931 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-ps-co_file-86.i[919,932] [2023-12-16 03:28:50,004 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:28:50,019 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 03:28:50,027 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-ps-co_file-86.i[919,932] [2023-12-16 03:28:50,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 03:28:50,103 INFO L206 MainTranslator]: Completed translation [2023-12-16 03:28:50,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50 WrapperNode [2023-12-16 03:28:50,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 03:28:50,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 03:28:50,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 03:28:50,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 03:28:50,109 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50" (1/1) ... [2023-12-16 03:28:50,117 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50" (1/1) ... [2023-12-16 03:28:50,183 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 215 [2023-12-16 03:28:50,183 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 03:28:50,184 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 03:28:50,184 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 03:28:50,184 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 03:28:50,192 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50" (1/1) ... [2023-12-16 03:28:50,192 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50" (1/1) ... [2023-12-16 03:28:50,195 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50" (1/1) ... [2023-12-16 03:28:50,208 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-16 03:28:50,208 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50" (1/1) ... [2023-12-16 03:28:50,208 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50" (1/1) ... [2023-12-16 03:28:50,216 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50" (1/1) ... [2023-12-16 03:28:50,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50" (1/1) ... [2023-12-16 03:28:50,221 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50" (1/1) ... [2023-12-16 03:28:50,223 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50" (1/1) ... [2023-12-16 03:28:50,226 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 03:28:50,227 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 03:28:50,227 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 03:28:50,227 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 03:28:50,228 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50" (1/1) ... [2023-12-16 03:28:50,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 03:28:50,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:28:50,261 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-16 03:28:50,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-16 03:28:50,300 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 03:28:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 03:28:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 03:28:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 03:28:50,301 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 03:28:50,301 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 03:28:50,360 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 03:28:50,362 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 03:28:50,746 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 03:28:50,778 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 03:28:50,778 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 03:28:50,779 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:28:50 BoogieIcfgContainer [2023-12-16 03:28:50,779 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 03:28:50,780 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 03:28:50,780 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 03:28:50,783 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 03:28:50,783 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 03:28:49" (1/3) ... [2023-12-16 03:28:50,783 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a81fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:28:50, skipping insertion in model container [2023-12-16 03:28:50,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 03:28:50" (2/3) ... [2023-12-16 03:28:50,784 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a81fc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 03:28:50, skipping insertion in model container [2023-12-16 03:28:50,784 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 03:28:50" (3/3) ... [2023-12-16 03:28:50,785 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-86.i [2023-12-16 03:28:50,797 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 03:28:50,798 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 03:28:50,872 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 03:28:50,877 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;@267444ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 03:28:50,877 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 03:28:50,886 INFO L276 IsEmpty]: Start isEmpty. Operand has 80 states, 50 states have (on average 1.5) internal successors, (75), 51 states have internal predecessors, (75), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-16 03:28:50,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 03:28:50,913 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:28:50,914 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:28:50,915 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:28:50,920 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:28:50,920 INFO L85 PathProgramCache]: Analyzing trace with hash 1650257997, now seen corresponding path program 1 times [2023-12-16 03:28:50,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:28:50,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771132826] [2023-12-16 03:28:50,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:28:50,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:28:51,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:28:51,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:28:51,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771132826] [2023-12-16 03:28:51,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 03:28:51,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786354879] [2023-12-16 03:28:51,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:28:51,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:28:51,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:28:51,155 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) [2023-12-16 03:28:51,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-16 03:28:51,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:28:51,317 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 03:28:51,328 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:28:51,373 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 1352 trivial. 0 not checked. [2023-12-16 03:28:51,374 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:28:51,374 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786354879] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:28:51,374 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:28:51,374 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 03:28:51,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069412260] [2023-12-16 03:28:51,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:28:51,392 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 03:28:51,392 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:28:51,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 03:28:51,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:28:51,419 INFO L87 Difference]: Start difference. First operand has 80 states, 50 states have (on average 1.5) internal successors, (75), 51 states have internal predecessors, (75), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-16 03:28:51,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:28:51,446 INFO L93 Difference]: Finished difference Result 157 states and 283 transitions. [2023-12-16 03:28:51,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 03:28:51,448 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 171 [2023-12-16 03:28:51,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:28:51,453 INFO L225 Difference]: With dead ends: 157 [2023-12-16 03:28:51,453 INFO L226 Difference]: Without dead ends: 78 [2023-12-16 03:28:51,456 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 03:28:51,458 INFO L413 NwaCegarLoop]: 121 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, 121 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 [2023-12-16 03:28:51,458 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 121 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:28:51,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2023-12-16 03:28:51,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2023-12-16 03:28:51,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 78 states, 49 states have (on average 1.4285714285714286) internal successors, (70), 49 states have internal predecessors, (70), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2023-12-16 03:28:51,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 124 transitions. [2023-12-16 03:28:51,486 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 124 transitions. Word has length 171 [2023-12-16 03:28:51,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:28:51,487 INFO L495 AbstractCegarLoop]: Abstraction has 78 states and 124 transitions. [2023-12-16 03:28:51,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.5) internal successors, (41), 2 states have internal predecessors, (41), 2 states have call successors, (27), 2 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-16 03:28:51,487 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 124 transitions. [2023-12-16 03:28:51,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 03:28:51,489 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:28:51,489 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:28:51,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-12-16 03:28:51,695 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 [2023-12-16 03:28:51,695 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:28:51,696 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:28:51,696 INFO L85 PathProgramCache]: Analyzing trace with hash -2010109237, now seen corresponding path program 1 times [2023-12-16 03:28:51,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:28:51,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063520158] [2023-12-16 03:28:51,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:28:51,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:28:51,764 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:28:51,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [575693755] [2023-12-16 03:28:51,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:28:51,771 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:28:51,771 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:28:51,772 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) [2023-12-16 03:28:51,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-16 03:28:51,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:28:51,880 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 4 conjunts are in the unsatisfiable core [2023-12-16 03:28:51,896 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:28:52,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-12-16 03:28:52,149 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:28:52,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:28:52,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063520158] [2023-12-16 03:28:52,149 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:28:52,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575693755] [2023-12-16 03:28:52,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575693755] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:28:52,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:28:52,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 03:28:52,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489290417] [2023-12-16 03:28:52,150 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:28:52,152 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 03:28:52,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:28:52,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 03:28:52,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 03:28:52,155 INFO L87 Difference]: Start difference. First operand 78 states and 124 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-16 03:28:52,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:28:52,339 INFO L93 Difference]: Finished difference Result 233 states and 371 transitions. [2023-12-16 03:28:52,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 03:28:52,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 171 [2023-12-16 03:28:52,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:28:52,349 INFO L225 Difference]: With dead ends: 233 [2023-12-16 03:28:52,349 INFO L226 Difference]: Without dead ends: 156 [2023-12-16 03:28:52,353 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-12-16 03:28:52,354 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 126 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 126 SdHoareTripleChecker+Valid, 382 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:28:52,354 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [126 Valid, 382 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:28:52,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2023-12-16 03:28:52,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 137. [2023-12-16 03:28:52,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 80 states have (on average 1.3875) internal successors, (111), 80 states have internal predecessors, (111), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-16 03:28:52,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 219 transitions. [2023-12-16 03:28:52,393 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 219 transitions. Word has length 171 [2023-12-16 03:28:52,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:28:52,394 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 219 transitions. [2023-12-16 03:28:52,394 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-16 03:28:52,394 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 219 transitions. [2023-12-16 03:28:52,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2023-12-16 03:28:52,400 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:28:52,400 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:28:52,407 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-16 03:28:52,606 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 [2023-12-16 03:28:52,606 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:28:52,607 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:28:52,607 INFO L85 PathProgramCache]: Analyzing trace with hash 1698052045, now seen corresponding path program 1 times [2023-12-16 03:28:52,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:28:52,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284972548] [2023-12-16 03:28:52,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:28:52,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:28:52,660 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:28:52,660 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [345925749] [2023-12-16 03:28:52,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:28:52,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:28:52,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:28:52,664 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) [2023-12-16 03:28:52,684 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-16 03:28:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:28:52,767 INFO L262 TraceCheckSpWp]: Trace formula consists of 427 conjuncts, 6 conjunts are in the unsatisfiable core [2023-12-16 03:28:52,773 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:28:52,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 176 proven. 3 refuted. 0 times theorem prover too weak. 1225 trivial. 0 not checked. [2023-12-16 03:28:52,820 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 03:28:52,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:28:52,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284972548] [2023-12-16 03:28:52,943 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:28:52,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345925749] [2023-12-16 03:28:52,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345925749] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 03:28:52,943 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-12-16 03:28:52,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2023-12-16 03:28:52,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821477860] [2023-12-16 03:28:52,944 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-12-16 03:28:52,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 03:28:52,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:28:52,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 03:28:52,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-12-16 03:28:52,946 INFO L87 Difference]: Start difference. First operand 137 states and 219 transitions. Second operand has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-16 03:28:53,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:28:53,093 INFO L93 Difference]: Finished difference Result 231 states and 359 transitions. [2023-12-16 03:28:53,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-16 03:28:53,093 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 171 [2023-12-16 03:28:53,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:28:53,095 INFO L225 Difference]: With dead ends: 231 [2023-12-16 03:28:53,095 INFO L226 Difference]: Without dead ends: 149 [2023-12-16 03:28:53,095 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 189 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2023-12-16 03:28:53,096 INFO L413 NwaCegarLoop]: 86 mSDtfsCounter, 89 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 170 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-16 03:28:53,096 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 202 Invalid, 170 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-16 03:28:53,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2023-12-16 03:28:53,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 145. [2023-12-16 03:28:53,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 86 states have (on average 1.3372093023255813) internal successors, (115), 86 states have internal predecessors, (115), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2023-12-16 03:28:53,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 223 transitions. [2023-12-16 03:28:53,109 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 223 transitions. Word has length 171 [2023-12-16 03:28:53,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:28:53,110 INFO L495 AbstractCegarLoop]: Abstraction has 145 states and 223 transitions. [2023-12-16 03:28:53,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.0) internal successors, (45), 5 states have internal predecessors, (45), 2 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2023-12-16 03:28:53,110 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 223 transitions. [2023-12-16 03:28:53,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 03:28:53,111 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:28:53,111 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:28:53,133 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-12-16 03:28:53,316 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 [2023-12-16 03:28:53,317 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:28:53,317 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:28:53,317 INFO L85 PathProgramCache]: Analyzing trace with hash -1452256168, now seen corresponding path program 1 times [2023-12-16 03:28:53,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:28:53,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589039763] [2023-12-16 03:28:53,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:28:53,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:28:53,382 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:28:53,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1448967251] [2023-12-16 03:28:53,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:28:53,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:28:53,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:28:53,398 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) [2023-12-16 03:28:53,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-16 03:28:53,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:28:53,624 INFO L262 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 5 conjunts are in the unsatisfiable core [2023-12-16 03:28:53,627 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 03:28:53,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2023-12-16 03:28:53,781 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 03:28:53,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 03:28:53,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589039763] [2023-12-16 03:28:53,782 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 03:28:53,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448967251] [2023-12-16 03:28:53,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448967251] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 03:28:53,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 03:28:53,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 03:28:53,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388303258] [2023-12-16 03:28:53,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 03:28:53,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-16 03:28:53,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 03:28:53,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-16 03:28:53,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:28:53,784 INFO L87 Difference]: Start difference. First operand 145 states and 223 transitions. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-16 03:28:53,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 03:28:53,815 INFO L93 Difference]: Finished difference Result 320 states and 494 transitions. [2023-12-16 03:28:53,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-16 03:28:53,815 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 172 [2023-12-16 03:28:53,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 03:28:53,819 INFO L225 Difference]: With dead ends: 320 [2023-12-16 03:28:53,819 INFO L226 Difference]: Without dead ends: 226 [2023-12-16 03:28:53,820 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-16 03:28:53,821 INFO L413 NwaCegarLoop]: 139 mSDtfsCounter, 49 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 03:28:53,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 256 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 03:28:53,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2023-12-16 03:28:53,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 224. [2023-12-16 03:28:53,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 136 states have (on average 1.3455882352941178) internal successors, (183), 136 states have internal predecessors, (183), 81 states have call successors, (81), 6 states have call predecessors, (81), 6 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2023-12-16 03:28:53,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 345 transitions. [2023-12-16 03:28:53,854 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 345 transitions. Word has length 172 [2023-12-16 03:28:53,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 03:28:53,856 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 345 transitions. [2023-12-16 03:28:53,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2023-12-16 03:28:53,857 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 345 transitions. [2023-12-16 03:28:53,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2023-12-16 03:28:53,858 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 03:28:53,858 INFO L195 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 03:28:53,867 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-16 03:28:54,064 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 [2023-12-16 03:28:54,065 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 03:28:54,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 03:28:54,065 INFO L85 PathProgramCache]: Analyzing trace with hash -1233401450, now seen corresponding path program 1 times [2023-12-16 03:28:54,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 03:28:54,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478732686] [2023-12-16 03:28:54,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:28:54,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 03:28:54,088 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 03:28:54,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1292967076] [2023-12-16 03:28:54,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 03:28:54,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 03:28:54,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 03:28:54,090 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) [2023-12-16 03:28:54,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-16 03:28:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 03:28:54,206 INFO L262 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 59 conjunts are in the unsatisfiable core [2023-12-16 03:28:54,211 INFO L285 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2023-12-16 03:30:06,160 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 03:30:06,161 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 [2023-12-16 03:30:06,209 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 03:30:06,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-16 03:30:06,423 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 [2023-12-16 03:30:06,427 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 173 with TraceHistMax 27,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-18-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-58-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-3-2-2-2-2-2-3-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-1 context. [2023-12-16 03:30:06,431 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-12-16 03:30:06,433 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 03:30:06,434 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 03:30:06 BoogieIcfgContainer [2023-12-16 03:30:06,434 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 03:30:06,435 INFO L158 Benchmark]: Toolchain (without parser) took 76680.10ms. Allocated memory was 218.1MB in the beginning and 1.2GB in the end (delta: 996.1MB). Free memory was 152.1MB in the beginning and 448.9MB in the end (delta: -296.8MB). Peak memory consumption was 728.5MB. Max. memory is 8.0GB. [2023-12-16 03:30:06,435 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 218.1MB. Free memory is still 166.4MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 03:30:06,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 348.68ms. Allocated memory is still 218.1MB. Free memory was 151.9MB in the beginning and 136.4MB in the end (delta: 15.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 03:30:06,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.88ms. Allocated memory was 218.1MB in the beginning and 399.5MB in the end (delta: 181.4MB). Free memory was 136.4MB in the beginning and 360.7MB in the end (delta: -224.4MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB. [2023-12-16 03:30:06,436 INFO L158 Benchmark]: Boogie Preprocessor took 42.47ms. Allocated memory is still 399.5MB. Free memory was 360.7MB in the beginning and 354.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-16 03:30:06,436 INFO L158 Benchmark]: RCFGBuilder took 551.54ms. Allocated memory is still 399.5MB. Free memory was 353.9MB in the beginning and 323.0MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-16 03:30:06,436 INFO L158 Benchmark]: TraceAbstraction took 75654.09ms. Allocated memory was 399.5MB in the beginning and 1.2GB in the end (delta: 814.7MB). Free memory was 322.4MB in the beginning and 448.9MB in the end (delta: -126.4MB). Peak memory consumption was 715.1MB. Max. memory is 8.0GB. [2023-12-16 03:30:06,437 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 218.1MB. Free memory is still 166.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 348.68ms. Allocated memory is still 218.1MB. Free memory was 151.9MB in the beginning and 136.4MB in the end (delta: 15.5MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 78.88ms. Allocated memory was 218.1MB in the beginning and 399.5MB in the end (delta: 181.4MB). Free memory was 136.4MB in the beginning and 360.7MB in the end (delta: -224.4MB). Peak memory consumption was 8.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 42.47ms. Allocated memory is still 399.5MB. Free memory was 360.7MB in the beginning and 354.4MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 551.54ms. Allocated memory is still 399.5MB. Free memory was 353.9MB in the beginning and 323.0MB in the end (delta: 30.9MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 75654.09ms. Allocated memory was 399.5MB in the beginning and 1.2GB in the end (delta: 814.7MB). Free memory was 322.4MB in the beginning and 448.9MB in the end (delta: -126.4MB). Peak memory consumption was 715.1MB. 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 173 with TraceHistMax 27,while TraceCheckSpWp was constructing forward predicates,while PolyPacSimplificationTermWalker was simplifying a ∧-18-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-1 term,while PolyPacSimplificationTermWalker was simplifying 2 xjuncts wrt. a ∧-58-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-2-3-2-2-2-2-2-3-2-2-2-2-2-2-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-3-2-2-1 context. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 75.6s, OverallIterations: 5, TraceHistogramMax: 27, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 289 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 264 mSDsluCounter, 961 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 501 mSDsCounter, 60 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 265 IncrementalHoareTripleChecker+Invalid, 325 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 60 mSolverCounterUnsat, 460 mSDtfsCounter, 265 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 710 GetRequests, 696 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=224occurred in iteration=4, InterpolantAutomatonStates: 19, 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, 25 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 856 NumberOfCodeBlocks, 856 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 681 ConstructedInterpolants, 0 QuantifiedInterpolants, 1353 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1711 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 5613/5616 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