/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_variablewrapping_wrapper-sp_file-39.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:32:12,000 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:32:12,058 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 04:32:12,062 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:32:12,062 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:32:12,088 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:32:12,089 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:32:12,089 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:32:12,090 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:32:12,093 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:32:12,093 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:32:12,093 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:32:12,094 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:32:12,095 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:32:12,095 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:32:12,095 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:32:12,095 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:32:12,095 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:32:12,095 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:32:12,096 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:32:12,096 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:32:12,096 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:32:12,096 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:32:12,096 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:32:12,097 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:32:12,097 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:32:12,097 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:32:12,097 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:32:12,097 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:32:12,098 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:32:12,098 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:32:12,098 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:32:12,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:32:12,099 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:32:12,099 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:32:12,099 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:32:12,099 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:32:12,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:32:12,099 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:32:12,099 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:32:12,100 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:32:12,100 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:32:12,100 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:32:12,100 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:32:12,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:32:12,300 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:32:12,302 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:32:12,303 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:32:12,303 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:32:12,304 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-39.i [2023-12-16 04:32:13,413 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:32:13,575 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:32:13,576 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-sp_file-39.i [2023-12-16 04:32:13,581 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86b2064d5/b87de8b622b24e03a10f498084d96b86/FLAG56eca3f24 [2023-12-16 04:32:13,590 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/86b2064d5/b87de8b622b24e03a10f498084d96b86 [2023-12-16 04:32:13,592 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:32:13,593 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:32:13,594 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:32:13,594 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:32:13,597 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:32:13,597 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:13,598 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1449ee7f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13, skipping insertion in model container [2023-12-16 04:32:13,598 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:13,630 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:32:13,745 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_variablewrapping_wrapper-sp_file-39.i[917,930] [2023-12-16 04:32:13,799 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:32:13,811 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:32:13,829 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_variablewrapping_wrapper-sp_file-39.i[917,930] [2023-12-16 04:32:13,869 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:32:13,885 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:32:13,886 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13 WrapperNode [2023-12-16 04:32:13,886 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:32:13,887 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:32:13,887 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:32:13,887 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:32:13,895 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:13,907 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:13,935 INFO L138 Inliner]: procedures = 29, calls = 188, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 602 [2023-12-16 04:32:13,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:32:13,935 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:32:13,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:32:13,936 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:32:13,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:13,966 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:13,970 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:14,000 INFO L175 MemorySlicer]: Split 160 memory accesses to 2 slices as follows [2, 158]. 99 percent of accesses are in the largest equivalence class. The 14 initializations are split as follows [2, 12]. The 16 writes are split as follows [0, 16]. [2023-12-16 04:32:14,001 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:14,001 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:14,025 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:14,029 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:14,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:14,032 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:14,035 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:32:14,036 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:32:14,036 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:32:14,036 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:32:14,037 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13" (1/1) ... [2023-12-16 04:32:14,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:32:14,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:14,093 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 04:32:14,107 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 04:32:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:32:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-16 04:32:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-16 04:32:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:32:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:32:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-16 04:32:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-16 04:32:14,118 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:32:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:32:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-16 04:32:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-16 04:32:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:32:14,120 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:32:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:32:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:32:14,120 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:32:14,120 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:32:14,210 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:32:14,212 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:32:14,629 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:32:14,658 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:32:14,658 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:32:14,659 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:32:14 BoogieIcfgContainer [2023-12-16 04:32:14,659 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:32:14,660 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:32:14,660 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:32:14,663 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:32:14,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:32:13" (1/3) ... [2023-12-16 04:32:14,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21942676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:32:14, skipping insertion in model container [2023-12-16 04:32:14,663 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:32:13" (2/3) ... [2023-12-16 04:32:14,663 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21942676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:32:14, skipping insertion in model container [2023-12-16 04:32:14,664 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:32:14" (3/3) ... [2023-12-16 04:32:14,664 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-sp_file-39.i [2023-12-16 04:32:14,677 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:32:14,677 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:32:14,713 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:32:14,720 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;@6d1e57ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:32:14,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:32:14,726 INFO L276 IsEmpty]: Start isEmpty. Operand has 107 states, 88 states have (on average 1.4772727272727273) internal successors, (130), 89 states have internal predecessors, (130), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-16 04:32:14,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 04:32:14,740 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:14,741 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:14,741 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:14,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:14,746 INFO L85 PathProgramCache]: Analyzing trace with hash -834436398, now seen corresponding path program 1 times [2023-12-16 04:32:14,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:14,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240423180] [2023-12-16 04:32:14,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:14,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:32:15,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:32:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:32:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:32:15,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:32:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:32:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:32:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:32:15,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 04:32:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:32:15,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 04:32:15,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 04:32:15,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 04:32:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 04:32:15,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 04:32:15,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 04:32:15,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:15,122 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-16 04:32:15,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:15,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240423180] [2023-12-16 04:32:15,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240423180] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:32:15,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:32:15,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:32:15,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740414929] [2023-12-16 04:32:15,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:32:15,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:32:15,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:15,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:32:15,156 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:32:15,158 INFO L87 Difference]: Start difference. First operand has 107 states, 88 states have (on average 1.4772727272727273) internal successors, (130), 89 states have internal predecessors, (130), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 04:32:15,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:15,230 INFO L93 Difference]: Finished difference Result 211 states and 338 transitions. [2023-12-16 04:32:15,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:32:15,232 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) Word has length 121 [2023-12-16 04:32:15,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:15,240 INFO L225 Difference]: With dead ends: 211 [2023-12-16 04:32:15,240 INFO L226 Difference]: Without dead ends: 105 [2023-12-16 04:32:15,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 50 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 04:32:15,247 INFO L413 NwaCegarLoop]: 153 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:32:15,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 153 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:32:15,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-16 04:32:15,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2023-12-16 04:32:15,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 87 states have (on average 1.4367816091954022) internal successors, (125), 87 states have internal predecessors, (125), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-16 04:32:15,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 157 transitions. [2023-12-16 04:32:15,297 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 157 transitions. Word has length 121 [2023-12-16 04:32:15,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:15,297 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 157 transitions. [2023-12-16 04:32:15,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 1 states have call predecessors, (16), 2 states have call successors, (16) [2023-12-16 04:32:15,298 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 157 transitions. [2023-12-16 04:32:15,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 04:32:15,305 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:15,306 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:15,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-12-16 04:32:15,307 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:15,307 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:15,307 INFO L85 PathProgramCache]: Analyzing trace with hash 663494422, now seen corresponding path program 1 times [2023-12-16 04:32:15,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:15,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704806227] [2023-12-16 04:32:15,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:15,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:15,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:32:17,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:32:17,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:32:17,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:32:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:32:17,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:32:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:32:17,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:32:17,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 04:32:17,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:32:17,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 04:32:17,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 04:32:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 04:32:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 04:32:17,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:17,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 04:32:17,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:18,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 04:32:18,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:18,012 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2023-12-16 04:32:18,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:18,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704806227] [2023-12-16 04:32:18,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704806227] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:32:18,013 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:32:18,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2023-12-16 04:32:18,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964787853] [2023-12-16 04:32:18,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:32:18,015 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2023-12-16 04:32:18,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:18,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2023-12-16 04:32:18,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2023-12-16 04:32:18,019 INFO L87 Difference]: Start difference. First operand 105 states and 157 transitions. Second operand has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 04:32:18,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:18,828 INFO L93 Difference]: Finished difference Result 308 states and 463 transitions. [2023-12-16 04:32:18,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:32:18,828 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) Word has length 121 [2023-12-16 04:32:18,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:18,830 INFO L225 Difference]: With dead ends: 308 [2023-12-16 04:32:18,830 INFO L226 Difference]: Without dead ends: 204 [2023-12-16 04:32:18,831 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=97, Invalid=209, Unknown=0, NotChecked=0, Total=306 [2023-12-16 04:32:18,832 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 747 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 507 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 747 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2023-12-16 04:32:18,832 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [747 Valid, 295 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 507 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2023-12-16 04:32:18,833 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2023-12-16 04:32:18,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 126. [2023-12-16 04:32:18,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 108 states have (on average 1.462962962962963) internal successors, (158), 108 states have internal predecessors, (158), 16 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-16 04:32:18,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 190 transitions. [2023-12-16 04:32:18,851 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 190 transitions. Word has length 121 [2023-12-16 04:32:18,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:18,853 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 190 transitions. [2023-12-16 04:32:18,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.6666666666666665) internal successors, (44), 12 states have internal predecessors, (44), 3 states have call successors, (16), 1 states have call predecessors, (16), 1 states have return successors, (16), 3 states have call predecessors, (16), 3 states have call successors, (16) [2023-12-16 04:32:18,853 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 190 transitions. [2023-12-16 04:32:18,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 04:32:18,854 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:18,854 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:18,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-12-16 04:32:18,854 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:18,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:18,855 INFO L85 PathProgramCache]: Analyzing trace with hash 1472841048, now seen corresponding path program 1 times [2023-12-16 04:32:18,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:18,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198508235] [2023-12-16 04:32:18,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:18,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:19,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:22,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:32:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:22,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:32:22,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:32:23,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:32:23,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:32:23,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:32:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,055 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:32:23,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:32:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 04:32:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:32:23,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 04:32:23,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 04:32:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 04:32:23,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 04:32:23,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 04:32:23,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 04:32:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,190 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-16 04:32:23,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:32:23,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198508235] [2023-12-16 04:32:23,191 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198508235] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:32:23,191 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [877531226] [2023-12-16 04:32:23,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:23,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:23,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:32:23,194 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 04:32:23,221 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 04:32:23,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:32:23,419 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 117 conjunts are in the unsatisfiable core [2023-12-16 04:32:23,431 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:32:23,640 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 04:32:24,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 14 [2023-12-16 04:32:26,188 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 27 [2023-12-16 04:32:27,194 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 37 [2023-12-16 04:32:28,277 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 47 [2023-12-16 04:32:28,774 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 47 [2023-12-16 04:32:29,341 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 47 [2023-12-16 04:32:29,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 47 [2023-12-16 04:32:30,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 47 [2023-12-16 04:32:31,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 183 treesize of output 131 [2023-12-16 04:32:31,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:31,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:31,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:31,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:31,910 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 131 treesize of output 143 [2023-12-16 04:32:31,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:31,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:31,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:31,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:31,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 129 treesize of output 87 [2023-12-16 04:32:32,377 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 294 treesize of output 221 [2023-12-16 04:32:32,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,387 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,394 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 206 treesize of output 159 [2023-12-16 04:32:32,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,661 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 15 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 138 treesize of output 97 [2023-12-16 04:32:32,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:32:32,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 162 treesize of output 70 [2023-12-16 04:32:33,094 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 160 proven. 250 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2023-12-16 04:32:33,095 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:32:47,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [877531226] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:32:47,759 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-16 04:32:47,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 35] total 52 [2023-12-16 04:32:47,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544861205] [2023-12-16 04:32:47,759 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-16 04:32:47,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2023-12-16 04:32:47,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:32:47,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2023-12-16 04:32:47,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=404, Invalid=3017, Unknown=1, NotChecked=0, Total=3422 [2023-12-16 04:32:47,762 INFO L87 Difference]: Start difference. First operand 126 states and 190 transitions. Second operand has 52 states, 45 states have (on average 2.466666666666667) internal successors, (111), 48 states have internal predecessors, (111), 13 states have call successors, (32), 9 states have call predecessors, (32), 11 states have return successors, (32), 10 states have call predecessors, (32), 13 states have call successors, (32) [2023-12-16 04:32:59,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:32:59,264 INFO L93 Difference]: Finished difference Result 390 states and 563 transitions. [2023-12-16 04:32:59,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2023-12-16 04:32:59,266 INFO L78 Accepts]: Start accepts. Automaton has has 52 states, 45 states have (on average 2.466666666666667) internal successors, (111), 48 states have internal predecessors, (111), 13 states have call successors, (32), 9 states have call predecessors, (32), 11 states have return successors, (32), 10 states have call predecessors, (32), 13 states have call successors, (32) Word has length 121 [2023-12-16 04:32:59,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:32:59,267 INFO L225 Difference]: With dead ends: 390 [2023-12-16 04:32:59,267 INFO L226 Difference]: Without dead ends: 265 [2023-12-16 04:32:59,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 135 SyntacticMatches, 1 SemanticMatches, 92 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2166 ImplicationChecksByTransitivity, 22.3s TimeCoverageRelationStatistics Valid=1209, Invalid=7532, Unknown=1, NotChecked=0, Total=8742 [2023-12-16 04:32:59,271 INFO L413 NwaCegarLoop]: 104 mSDtfsCounter, 942 mSDsluCounter, 2026 mSDsCounter, 0 mSdLazyCounter, 4064 mSolverCounterSat, 33 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 950 SdHoareTripleChecker+Valid, 2130 SdHoareTripleChecker+Invalid, 4098 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 4064 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-12-16 04:32:59,271 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [950 Valid, 2130 Invalid, 4098 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 4064 Invalid, 1 Unknown, 0 Unchecked, 4.6s Time] [2023-12-16 04:32:59,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2023-12-16 04:32:59,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 168. [2023-12-16 04:32:59,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 144 states have (on average 1.4097222222222223) internal successors, (203), 144 states have internal predecessors, (203), 16 states have call successors, (16), 7 states have call predecessors, (16), 7 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-12-16 04:32:59,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 235 transitions. [2023-12-16 04:32:59,288 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 235 transitions. Word has length 121 [2023-12-16 04:32:59,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:32:59,288 INFO L495 AbstractCegarLoop]: Abstraction has 168 states and 235 transitions. [2023-12-16 04:32:59,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 45 states have (on average 2.466666666666667) internal successors, (111), 48 states have internal predecessors, (111), 13 states have call successors, (32), 9 states have call predecessors, (32), 11 states have return successors, (32), 10 states have call predecessors, (32), 13 states have call successors, (32) [2023-12-16 04:32:59,289 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 235 transitions. [2023-12-16 04:32:59,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2023-12-16 04:32:59,289 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:32:59,290 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:32:59,306 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 04:32:59,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:32:59,496 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:32:59,497 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:32:59,497 INFO L85 PathProgramCache]: Analyzing trace with hash -347622828, now seen corresponding path program 1 times [2023-12-16 04:32:59,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:32:59,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323360743] [2023-12-16 04:32:59,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:32:59,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:32:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-12-16 04:33:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-12-16 04:33:02,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-12-16 04:33:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2023-12-16 04:33:02,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2023-12-16 04:33:02,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-12-16 04:33:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2023-12-16 04:33:02,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2023-12-16 04:33:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-12-16 04:33:02,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2023-12-16 04:33:02,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-12-16 04:33:02,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-12-16 04:33:02,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2023-12-16 04:33:02,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-12-16 04:33:02,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,967 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2023-12-16 04:33:02,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2023-12-16 04:33:02,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:02,985 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2023-12-16 04:33:02,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:33:02,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323360743] [2023-12-16 04:33:02,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323360743] provided 0 perfect and 1 imperfect interpolant sequences [2023-12-16 04:33:02,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847162224] [2023-12-16 04:33:02,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:33:02,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:33:02,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:33:03,009 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 04:33:03,017 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 04:33:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:33:03,188 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 78 conjunts are in the unsatisfiable core [2023-12-16 04:33:03,199 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:33:03,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-16 04:33:03,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-16 04:33:04,321 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-16 04:33:04,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-16 04:33:05,098 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-16 04:33:05,379 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-16 04:33:05,664 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-16 04:33:05,980 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-16 04:33:06,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-12-16 04:33:07,118 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 135 treesize of output 97 [2023-12-16 04:33:07,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 113 [2023-12-16 04:33:07,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,181 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,185 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 70 [2023-12-16 04:33:07,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,316 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 156 treesize of output 97 [2023-12-16 04:33:07,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,449 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 70 [2023-12-16 04:33:07,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-12-16 04:33:07,642 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 10 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 60 [2023-12-16 04:33:07,762 INFO L134 CoverageAnalysis]: Checked inductivity of 480 backedges. 13 proven. 151 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2023-12-16 04:33:07,763 INFO L327 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2023-12-16 04:33:13,298 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:33:13,323 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 04:33:13,371 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:33:13,379 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-16 04:33:13,571 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,SelfDestructingSolverStorable3 [2023-12-16 04:33:13,572 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 122 with TraceHistMax 16,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 36 known predicates. [2023-12-16 04:33:13,575 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-12-16 04:33:13,577 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:33:13,578 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:33:13 BoogieIcfgContainer [2023-12-16 04:33:13,578 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:33:13,578 INFO L158 Benchmark]: Toolchain (without parser) took 59985.43ms. Allocated memory was 197.1MB in the beginning and 694.2MB in the end (delta: 497.0MB). Free memory was 132.7MB in the beginning and 278.8MB in the end (delta: -146.1MB). Peak memory consumption was 351.4MB. Max. memory is 8.0GB. [2023-12-16 04:33:13,578 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory was 146.2MB in the beginning and 146.1MB in the end (delta: 89.5kB). There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:33:13,579 INFO L158 Benchmark]: CACSL2BoogieTranslator took 292.63ms. Allocated memory is still 197.1MB. Free memory was 132.4MB in the beginning and 116.4MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 04:33:13,579 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.25ms. Allocated memory is still 197.1MB. Free memory was 116.4MB in the beginning and 112.5MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:33:13,579 INFO L158 Benchmark]: Boogie Preprocessor took 100.09ms. Allocated memory was 197.1MB in the beginning and 256.9MB in the end (delta: 59.8MB). Free memory was 112.5MB in the beginning and 218.7MB in the end (delta: -106.2MB). Peak memory consumption was 6.0MB. Max. memory is 8.0GB. [2023-12-16 04:33:13,579 INFO L158 Benchmark]: RCFGBuilder took 622.63ms. Allocated memory is still 256.9MB. Free memory was 218.7MB in the beginning and 183.1MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-12-16 04:33:13,579 INFO L158 Benchmark]: TraceAbstraction took 58917.72ms. Allocated memory was 256.9MB in the beginning and 694.2MB in the end (delta: 437.3MB). Free memory was 182.5MB in the beginning and 278.8MB in the end (delta: -96.2MB). Peak memory consumption was 341.1MB. Max. memory is 8.0GB. [2023-12-16 04:33:13,580 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 197.1MB. Free memory was 146.2MB in the beginning and 146.1MB in the end (delta: 89.5kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 292.63ms. Allocated memory is still 197.1MB. Free memory was 132.4MB in the beginning and 116.4MB in the end (delta: 16.0MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 48.25ms. Allocated memory is still 197.1MB. Free memory was 116.4MB in the beginning and 112.5MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 100.09ms. Allocated memory was 197.1MB in the beginning and 256.9MB in the end (delta: 59.8MB). Free memory was 112.5MB in the beginning and 218.7MB in the end (delta: -106.2MB). Peak memory consumption was 6.0MB. Max. memory is 8.0GB. * RCFGBuilder took 622.63ms. Allocated memory is still 256.9MB. Free memory was 218.7MB in the beginning and 183.1MB in the end (delta: 35.6MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. * TraceAbstraction took 58917.72ms. Allocated memory was 256.9MB in the beginning and 694.2MB in the end (delta: 437.3MB). Free memory was 182.5MB in the beginning and 278.8MB in the end (delta: -96.2MB). Peak memory consumption was 341.1MB. 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 122 with TraceHistMax 16,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 36 known predicates. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 107 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 58.9s, OverallIterations: 4, TraceHistogramMax: 16, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 12.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1 mSolverCounterUnknown, 1697 SdHoareTripleChecker+Valid, 5.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1689 mSDsluCounter, 2578 SdHoareTripleChecker+Invalid, 4.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2221 mSDsCounter, 78 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4575 IncrementalHoareTripleChecker+Invalid, 4654 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 78 mSolverCounterUnsat, 357 mSDtfsCounter, 4575 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 333 GetRequests, 224 SyntacticMatches, 1 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2202 ImplicationChecksByTransitivity, 22.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=168occurred in iteration=3, InterpolantAutomatonStates: 67, 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, 3 MinimizatonAttempts, 175 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 31.3s InterpolantComputationTime, 484 NumberOfCodeBlocks, 484 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 480 ConstructedInterpolants, 3 QuantifiedInterpolants, 16988 SizeOfPredicates, 38 NumberOfNonLiveVariables, 460 ConjunctsInSsa, 117 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 1625/1920 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