/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-s_file-69.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-16 04:29:27,784 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-16 04:29:27,846 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 04:29:27,849 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-16 04:29:27,850 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-16 04:29:27,876 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-16 04:29:27,876 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-16 04:29:27,877 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-16 04:29:27,877 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-16 04:29:27,880 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-16 04:29:27,880 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-16 04:29:27,880 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-16 04:29:27,881 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-16 04:29:27,882 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-16 04:29:27,882 INFO L153 SettingsManager]: * Use SBE=true [2023-12-16 04:29:27,882 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-16 04:29:27,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-16 04:29:27,882 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-16 04:29:27,882 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-16 04:29:27,883 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-16 04:29:27,883 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-16 04:29:27,883 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-16 04:29:27,883 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-16 04:29:27,883 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-16 04:29:27,884 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-16 04:29:27,884 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-16 04:29:27,884 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-16 04:29:27,884 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-16 04:29:27,885 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-16 04:29:27,885 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-16 04:29:27,885 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-16 04:29:27,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-16 04:29:27,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:29:27,886 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-16 04:29:27,886 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-16 04:29:27,886 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-16 04:29:27,886 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-16 04:29:27,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-16 04:29:27,887 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-16 04:29:27,887 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-16 04:29:27,887 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-16 04:29:27,887 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-16 04:29:27,887 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-16 04:29:27,887 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> false [2023-12-16 04:29:28,073 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-16 04:29:28,090 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-16 04:29:28,091 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-16 04:29:28,092 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-16 04:29:28,092 INFO L274 PluginConnector]: CDTParser initialized [2023-12-16 04:29:28,093 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-69.i [2023-12-16 04:29:29,092 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-16 04:29:29,396 INFO L384 CDTParser]: Found 1 translation units. [2023-12-16 04:29:29,397 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_variablewrapping_wrapper-s_file-69.i [2023-12-16 04:29:29,405 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a06a2e32e/e2b9958b369646e7b5d89dd7a20485bc/FLAG3244c383a [2023-12-16 04:29:29,431 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a06a2e32e/e2b9958b369646e7b5d89dd7a20485bc [2023-12-16 04:29:29,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-16 04:29:29,434 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-16 04:29:29,437 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-16 04:29:29,437 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-16 04:29:29,440 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-16 04:29:29,441 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:29,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@458db1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29, skipping insertion in model container [2023-12-16 04:29:29,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:29,514 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-16 04:29:29,739 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-s_file-69.i[916,929] [2023-12-16 04:29:29,819 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:29:29,838 INFO L202 MainTranslator]: Completed pre-run [2023-12-16 04:29:29,856 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-s_file-69.i[916,929] [2023-12-16 04:29:29,933 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-16 04:29:29,978 INFO L206 MainTranslator]: Completed translation [2023-12-16 04:29:29,980 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29 WrapperNode [2023-12-16 04:29:29,980 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-16 04:29:29,982 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-16 04:29:29,982 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-16 04:29:29,982 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-16 04:29:29,997 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:30,006 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:30,033 INFO L138 Inliner]: procedures = 29, calls = 158, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 469 [2023-12-16 04:29:30,033 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-16 04:29:30,034 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-16 04:29:30,034 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-16 04:29:30,034 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-16 04:29:30,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:30,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:30,045 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:30,056 INFO L175 MemorySlicer]: Split 131 memory accesses to 2 slices as follows [2, 129]. 98 percent of accesses are in the largest equivalence class. The 13 initializations are split as follows [2, 11]. The 18 writes are split as follows [0, 18]. [2023-12-16 04:29:30,056 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:30,056 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:30,069 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:30,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:30,073 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:30,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:30,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-16 04:29:30,078 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-16 04:29:30,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-16 04:29:30,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-16 04:29:30,079 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29" (1/1) ... [2023-12-16 04:29:30,082 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-16 04:29:30,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:29:30,101 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 04:29:30,148 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 04:29:30,163 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-16 04:29:30,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#0 [2023-12-16 04:29:30,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~real#1 [2023-12-16 04:29:30,163 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-16 04:29:30,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-16 04:29:30,164 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#0 [2023-12-16 04:29:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~real#1 [2023-12-16 04:29:30,165 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-16 04:29:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-16 04:29:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#0 [2023-12-16 04:29:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real#1 [2023-12-16 04:29:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-16 04:29:30,166 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-16 04:29:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-16 04:29:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-16 04:29:30,166 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-16 04:29:30,166 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-16 04:29:30,277 INFO L241 CfgBuilder]: Building ICFG [2023-12-16 04:29:30,278 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-16 04:29:30,642 INFO L282 CfgBuilder]: Performing block encoding [2023-12-16 04:29:30,676 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-16 04:29:30,677 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-16 04:29:30,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:29:30 BoogieIcfgContainer [2023-12-16 04:29:30,677 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-16 04:29:30,680 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-16 04:29:30,680 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-16 04:29:30,683 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-16 04:29:30,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.12 04:29:29" (1/3) ... [2023-12-16 04:29:30,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcb0077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:29:30, skipping insertion in model container [2023-12-16 04:29:30,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.12 04:29:29" (2/3) ... [2023-12-16 04:29:30,684 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bcb0077 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.12 04:29:30, skipping insertion in model container [2023-12-16 04:29:30,684 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.12 04:29:30" (3/3) ... [2023-12-16 04:29:30,685 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_variablewrapping_wrapper-s_file-69.i [2023-12-16 04:29:30,699 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-16 04:29:30,700 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-16 04:29:30,745 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-16 04:29:30,752 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;@7f6e748b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-16 04:29:30,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-16 04:29:30,756 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 69 states have (on average 1.4782608695652173) internal successors, (102), 70 states have internal predecessors, (102), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 04:29:30,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 04:29:30,773 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:30,774 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:30,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:30,780 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:30,780 INFO L85 PathProgramCache]: Analyzing trace with hash 710784747, now seen corresponding path program 1 times [2023-12-16 04:29:30,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:30,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863139055] [2023-12-16 04:29:30,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:30,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:30,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:30,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863139055] [2023-12-16 04:29:30,982 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-16 04:29:30,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27095482] [2023-12-16 04:29:30,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:30,983 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:29:30,983 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:29:31,009 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 04:29:31,035 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 04:29:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:31,216 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-16 04:29:31,225 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:29:31,265 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2023-12-16 04:29:31,266 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:29:31,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27095482] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:31,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:31,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-16 04:29:31,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54284544] [2023-12-16 04:29:31,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:31,275 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-16 04:29:31,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:31,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-16 04:29:31,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-16 04:29:31,303 INFO L87 Difference]: Start difference. First operand has 87 states, 69 states have (on average 1.4782608695652173) internal successors, (102), 70 states have internal predecessors, (102), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 04:29:31,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:31,349 INFO L93 Difference]: Finished difference Result 171 states and 277 transitions. [2023-12-16 04:29:31,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-16 04:29:31,352 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) Word has length 114 [2023-12-16 04:29:31,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:31,359 INFO L225 Difference]: With dead ends: 171 [2023-12-16 04:29:31,359 INFO L226 Difference]: Without dead ends: 85 [2023-12-16 04:29:31,362 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 113 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 04:29:31,366 INFO L413 NwaCegarLoop]: 123 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, 123 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 04:29:31,367 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 123 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:29:31,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2023-12-16 04:29:31,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2023-12-16 04:29:31,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 68 states have internal predecessors, (97), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 04:29:31,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 127 transitions. [2023-12-16 04:29:31,415 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 127 transitions. Word has length 114 [2023-12-16 04:29:31,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:31,415 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 127 transitions. [2023-12-16 04:29:31,416 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, (15), 2 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 2 states have call successors, (15) [2023-12-16 04:29:31,416 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 127 transitions. [2023-12-16 04:29:31,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2023-12-16 04:29:31,419 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:31,420 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:31,429 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 04:29:31,625 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 04:29:31,626 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:31,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:31,627 INFO L85 PathProgramCache]: Analyzing trace with hash 993285713, now seen corresponding path program 1 times [2023-12-16 04:29:31,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:31,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231423356] [2023-12-16 04:29:31,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:31,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:31,671 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:29:31,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1371280484] [2023-12-16 04:29:31,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:31,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:29:31,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:29:31,672 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 04:29:31,695 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 04:29:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:31,812 INFO L262 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-16 04:29:31,822 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:29:31,868 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 04:29:31,868 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:29:31,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:31,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231423356] [2023-12-16 04:29:31,869 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:29:31,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1371280484] [2023-12-16 04:29:31,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1371280484] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:31,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:31,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-16 04:29:31,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409999839] [2023-12-16 04:29:31,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:31,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-16 04:29:31,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:31,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-16 04:29:31,872 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-16 04:29:31,872 INFO L87 Difference]: Start difference. First operand 85 states and 127 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:31,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:31,926 INFO L93 Difference]: Finished difference Result 189 states and 284 transitions. [2023-12-16 04:29:31,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-12-16 04:29:31,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 114 [2023-12-16 04:29:31,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:31,930 INFO L225 Difference]: With dead ends: 189 [2023-12-16 04:29:31,930 INFO L226 Difference]: Without dead ends: 105 [2023-12-16 04:29:31,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:29:31,934 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 54 mSDsluCounter, 237 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:31,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 372 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-16 04:29:31,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2023-12-16 04:29:31,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 87. [2023-12-16 04:29:31,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 70 states have (on average 1.4142857142857144) internal successors, (99), 70 states have internal predecessors, (99), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 04:29:31,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 129 transitions. [2023-12-16 04:29:31,948 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 129 transitions. Word has length 114 [2023-12-16 04:29:31,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:31,951 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 129 transitions. [2023-12-16 04:29:31,951 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:31,952 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 129 transitions. [2023-12-16 04:29:31,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 04:29:31,956 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:31,957 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:31,965 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 04:29:32,163 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 04:29:32,163 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:32,164 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:32,164 INFO L85 PathProgramCache]: Analyzing trace with hash 2031215478, now seen corresponding path program 1 times [2023-12-16 04:29:32,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:32,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082238091] [2023-12-16 04:29:32,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:32,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:32,226 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:29:32,226 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2140607878] [2023-12-16 04:29:32,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:32,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:29:32,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:29:32,228 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 04:29:32,230 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 04:29:32,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:32,593 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 30 conjunts are in the unsatisfiable core [2023-12-16 04:29:32,598 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:29:32,627 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 19 treesize of output 1 [2023-12-16 04:29:32,707 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:29:32,710 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 37 [2023-12-16 04:29:32,808 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 04:29:32,808 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:29:32,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:32,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082238091] [2023-12-16 04:29:32,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:29:32,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2140607878] [2023-12-16 04:29:32,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2140607878] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:32,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:32,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 04:29:32,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724314734] [2023-12-16 04:29:32,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:32,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 04:29:32,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:32,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 04:29:32,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:29:32,812 INFO L87 Difference]: Start difference. First operand 87 states and 129 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:33,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:33,203 INFO L93 Difference]: Finished difference Result 234 states and 347 transitions. [2023-12-16 04:29:33,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:29:33,205 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2023-12-16 04:29:33,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:33,206 INFO L225 Difference]: With dead ends: 234 [2023-12-16 04:29:33,206 INFO L226 Difference]: Without dead ends: 148 [2023-12-16 04:29:33,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:29:33,207 INFO L413 NwaCegarLoop]: 91 mSDtfsCounter, 121 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 342 SdHoareTripleChecker+Invalid, 385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:33,208 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 342 Invalid, 385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-16 04:29:33,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2023-12-16 04:29:33,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 97. [2023-12-16 04:29:33,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 80 states have (on average 1.425) internal successors, (114), 80 states have internal predecessors, (114), 15 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 04:29:33,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 144 transitions. [2023-12-16 04:29:33,213 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 144 transitions. Word has length 116 [2023-12-16 04:29:33,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:33,214 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 144 transitions. [2023-12-16 04:29:33,214 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:33,214 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 144 transitions. [2023-12-16 04:29:33,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 04:29:33,215 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:33,215 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:33,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-16 04:29:33,427 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 04:29:33,427 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:33,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:33,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2005586380, now seen corresponding path program 1 times [2023-12-16 04:29:33,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:33,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427022598] [2023-12-16 04:29:33,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:33,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:33,450 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:29:33,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2075487365] [2023-12-16 04:29:33,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:33,451 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:29:33,451 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:29:33,452 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 04:29:33,472 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 04:29:33,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:33,589 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 04:29:33,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:29:33,637 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:29:33,637 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 28 [2023-12-16 04:29:33,645 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:29:33,646 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 16 [2023-12-16 04:29:33,653 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 04:29:33,653 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:29:33,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:33,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427022598] [2023-12-16 04:29:33,653 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:29:33,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2075487365] [2023-12-16 04:29:33,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2075487365] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:33,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:33,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:29:33,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027538661] [2023-12-16 04:29:33,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:33,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:29:33,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:33,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:29:33,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:29:33,655 INFO L87 Difference]: Start difference. First operand 97 states and 144 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:33,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:33,850 INFO L93 Difference]: Finished difference Result 265 states and 391 transitions. [2023-12-16 04:29:33,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-16 04:29:33,850 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2023-12-16 04:29:33,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:33,852 INFO L225 Difference]: With dead ends: 265 [2023-12-16 04:29:33,852 INFO L226 Difference]: Without dead ends: 169 [2023-12-16 04:29:33,852 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:29:33,853 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 110 mSDsluCounter, 233 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:33,853 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 340 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:29:33,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2023-12-16 04:29:33,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 140. [2023-12-16 04:29:33,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 120 states have (on average 1.425) internal successors, (171), 121 states have internal predecessors, (171), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 16 states have call predecessors, (17), 17 states have call successors, (17) [2023-12-16 04:29:33,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 205 transitions. [2023-12-16 04:29:33,861 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 205 transitions. Word has length 116 [2023-12-16 04:29:33,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:33,861 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 205 transitions. [2023-12-16 04:29:33,862 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:33,862 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 205 transitions. [2023-12-16 04:29:33,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 04:29:33,862 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:33,863 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:33,880 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 04:29:34,077 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 04:29:34,078 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:34,078 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:34,078 INFO L85 PathProgramCache]: Analyzing trace with hash 37070772, now seen corresponding path program 1 times [2023-12-16 04:29:34,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:34,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484990361] [2023-12-16 04:29:34,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:34,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:34,099 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:29:34,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2118281998] [2023-12-16 04:29:34,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:34,099 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:29:34,099 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:29:34,100 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 04:29:34,124 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 04:29:34,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:34,258 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-16 04:29:34,263 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:29:34,293 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:29:34,294 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2023-12-16 04:29:34,305 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:29:34,306 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 38 treesize of output 14 [2023-12-16 04:29:34,313 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 04:29:34,313 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:29:34,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:34,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484990361] [2023-12-16 04:29:34,313 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:29:34,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2118281998] [2023-12-16 04:29:34,314 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2118281998] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:34,314 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:34,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:29:34,315 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418673154] [2023-12-16 04:29:34,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:34,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:29:34,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:34,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:29:34,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:29:34,316 INFO L87 Difference]: Start difference. First operand 140 states and 205 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:34,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:34,519 INFO L93 Difference]: Finished difference Result 286 states and 414 transitions. [2023-12-16 04:29:34,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:29:34,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2023-12-16 04:29:34,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:34,520 INFO L225 Difference]: With dead ends: 286 [2023-12-16 04:29:34,520 INFO L226 Difference]: Without dead ends: 147 [2023-12-16 04:29:34,521 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-12-16 04:29:34,521 INFO L413 NwaCegarLoop]: 122 mSDtfsCounter, 93 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 373 SdHoareTripleChecker+Invalid, 238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:34,521 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 373 Invalid, 238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:29:34,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2023-12-16 04:29:34,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 108. [2023-12-16 04:29:34,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 90 states have (on average 1.4) internal successors, (126), 90 states have internal predecessors, (126), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 04:29:34,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 156 transitions. [2023-12-16 04:29:34,533 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 156 transitions. Word has length 116 [2023-12-16 04:29:34,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:34,533 INFO L495 AbstractCegarLoop]: Abstraction has 108 states and 156 transitions. [2023-12-16 04:29:34,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:34,534 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 156 transitions. [2023-12-16 04:29:34,535 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2023-12-16 04:29:34,535 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:34,535 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:34,543 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 04:29:34,735 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 04:29:34,735 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:34,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:34,736 INFO L85 PathProgramCache]: Analyzing trace with hash 295236210, now seen corresponding path program 1 times [2023-12-16 04:29:34,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:34,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999471054] [2023-12-16 04:29:34,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:34,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:34,757 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:29:34,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1922926449] [2023-12-16 04:29:34,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:34,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:29:34,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:29:34,758 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:29:34,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-16 04:29:35,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:35,004 INFO L262 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 50 conjunts are in the unsatisfiable core [2023-12-16 04:29:35,009 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:29:35,013 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:29:35,013 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 7 [2023-12-16 04:29:35,016 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 19 treesize of output 1 [2023-12-16 04:29:35,019 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 19 treesize of output 1 [2023-12-16 04:29:35,022 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 19 treesize of output 1 [2023-12-16 04:29:35,024 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 19 treesize of output 1 [2023-12-16 04:29:35,027 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 19 treesize of output 1 [2023-12-16 04:29:35,030 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 19 treesize of output 1 [2023-12-16 04:29:35,032 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 19 treesize of output 1 [2023-12-16 04:29:35,034 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 19 treesize of output 1 [2023-12-16 04:29:35,071 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:29:35,072 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 37 [2023-12-16 04:29:35,130 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 04:29:35,130 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:29:35,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:35,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999471054] [2023-12-16 04:29:35,130 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:29:35,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1922926449] [2023-12-16 04:29:35,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1922926449] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:35,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:35,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2023-12-16 04:29:35,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936797810] [2023-12-16 04:29:35,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:35,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-12-16 04:29:35,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:35,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-12-16 04:29:35,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:29:35,132 INFO L87 Difference]: Start difference. First operand 108 states and 156 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:35,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:35,453 INFO L93 Difference]: Finished difference Result 248 states and 358 transitions. [2023-12-16 04:29:35,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-12-16 04:29:35,454 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 116 [2023-12-16 04:29:35,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:35,455 INFO L225 Difference]: With dead ends: 248 [2023-12-16 04:29:35,455 INFO L226 Difference]: Without dead ends: 141 [2023-12-16 04:29:35,455 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2023-12-16 04:29:35,455 INFO L413 NwaCegarLoop]: 134 mSDtfsCounter, 98 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 499 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 502 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:35,456 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 471 Invalid, 502 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 499 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:29:35,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2023-12-16 04:29:35,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 114. [2023-12-16 04:29:35,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 96 states have (on average 1.40625) internal successors, (135), 96 states have internal predecessors, (135), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 04:29:35,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 165 transitions. [2023-12-16 04:29:35,461 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 165 transitions. Word has length 116 [2023-12-16 04:29:35,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:35,461 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 165 transitions. [2023-12-16 04:29:35,462 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:35,462 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 165 transitions. [2023-12-16 04:29:35,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-16 04:29:35,462 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:35,462 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:35,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-16 04:29:35,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:29:35,670 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:35,670 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:35,670 INFO L85 PathProgramCache]: Analyzing trace with hash -407954285, now seen corresponding path program 1 times [2023-12-16 04:29:35,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:35,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28153946] [2023-12-16 04:29:35,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:35,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:35,689 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:29:35,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [357558043] [2023-12-16 04:29:35,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:35,689 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:29:35,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:29:35,714 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:29:35,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-16 04:29:35,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:35,885 INFO L262 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-16 04:29:35,887 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:29:35,905 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 17 treesize of output 17 [2023-12-16 04:29:35,916 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:29:35,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 20 [2023-12-16 04:29:35,942 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 378 trivial. 0 not checked. [2023-12-16 04:29:35,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-16 04:29:36,008 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 04:29:36,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:36,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28153946] [2023-12-16 04:29:36,009 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:29:36,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357558043] [2023-12-16 04:29:36,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357558043] provided 1 perfect and 1 imperfect interpolant sequences [2023-12-16 04:29:36,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-12-16 04:29:36,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 10 [2023-12-16 04:29:36,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483441495] [2023-12-16 04:29:36,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:36,009 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-16 04:29:36,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:36,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-16 04:29:36,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-12-16 04:29:36,010 INFO L87 Difference]: Start difference. First operand 114 states and 165 transitions. Second operand has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:36,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:36,324 INFO L93 Difference]: Finished difference Result 318 states and 461 transitions. [2023-12-16 04:29:36,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-12-16 04:29:36,325 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 117 [2023-12-16 04:29:36,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:36,326 INFO L225 Difference]: With dead ends: 318 [2023-12-16 04:29:36,326 INFO L226 Difference]: Without dead ends: 205 [2023-12-16 04:29:36,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-12-16 04:29:36,327 INFO L413 NwaCegarLoop]: 180 mSDtfsCounter, 168 mSDsluCounter, 509 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:36,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 689 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:29:36,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2023-12-16 04:29:36,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 112. [2023-12-16 04:29:36,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 94 states have (on average 1.4042553191489362) internal successors, (132), 94 states have internal predecessors, (132), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2023-12-16 04:29:36,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 162 transitions. [2023-12-16 04:29:36,334 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 162 transitions. Word has length 117 [2023-12-16 04:29:36,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:36,334 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 162 transitions. [2023-12-16 04:29:36,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.5) internal successors, (45), 6 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:36,334 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 162 transitions. [2023-12-16 04:29:36,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2023-12-16 04:29:36,335 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:36,335 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:36,347 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-12-16 04:29:36,541 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:29:36,541 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:36,541 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:36,542 INFO L85 PathProgramCache]: Analyzing trace with hash -1667874510, now seen corresponding path program 1 times [2023-12-16 04:29:36,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:36,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917497213] [2023-12-16 04:29:36,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:36,542 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:36,578 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:29:36,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1671991911] [2023-12-16 04:29:36,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:36,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:29:36,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:29:36,581 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:29:36,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-16 04:29:36,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:36,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 20 conjunts are in the unsatisfiable core [2023-12-16 04:29:36,734 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:29:36,744 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 19 treesize of output 19 [2023-12-16 04:29:36,760 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:29:36,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 35 treesize of output 22 [2023-12-16 04:29:36,805 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 04:29:36,805 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:29:36,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:36,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917497213] [2023-12-16 04:29:36,806 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:29:36,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671991911] [2023-12-16 04:29:36,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671991911] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:36,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:36,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-12-16 04:29:36,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574997326] [2023-12-16 04:29:36,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:36,807 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-16 04:29:36,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:36,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-16 04:29:36,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2023-12-16 04:29:36,807 INFO L87 Difference]: Start difference. First operand 112 states and 162 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:37,147 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:37,147 INFO L93 Difference]: Finished difference Result 352 states and 507 transitions. [2023-12-16 04:29:37,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-12-16 04:29:37,148 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 117 [2023-12-16 04:29:37,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:37,149 INFO L225 Difference]: With dead ends: 352 [2023-12-16 04:29:37,149 INFO L226 Difference]: Without dead ends: 241 [2023-12-16 04:29:37,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=140, Unknown=0, NotChecked=0, Total=210 [2023-12-16 04:29:37,150 INFO L413 NwaCegarLoop]: 99 mSDtfsCounter, 309 mSDsluCounter, 402 mSDsCounter, 0 mSdLazyCounter, 370 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 501 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:37,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 501 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 370 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2023-12-16 04:29:37,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2023-12-16 04:29:37,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 199. [2023-12-16 04:29:37,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 171 states have (on average 1.3976608187134503) internal successors, (239), 172 states have internal predecessors, (239), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-16 04:29:37,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 285 transitions. [2023-12-16 04:29:37,158 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 285 transitions. Word has length 117 [2023-12-16 04:29:37,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:37,158 INFO L495 AbstractCegarLoop]: Abstraction has 199 states and 285 transitions. [2023-12-16 04:29:37,158 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 8 states have internal predecessors, (45), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:37,158 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 285 transitions. [2023-12-16 04:29:37,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 04:29:37,159 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:37,159 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:37,171 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-16 04:29:37,365 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-12-16 04:29:37,365 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:37,366 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:37,366 INFO L85 PathProgramCache]: Analyzing trace with hash -1441215003, now seen corresponding path program 1 times [2023-12-16 04:29:37,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:37,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638119387] [2023-12-16 04:29:37,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:37,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:37,382 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:29:37,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1563807206] [2023-12-16 04:29:37,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:37,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:29:37,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:29:37,384 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:29:37,385 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-16 04:29:37,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-16 04:29:37,584 INFO L262 TraceCheckSpWp]: Trace formula consists of 423 conjuncts, 28 conjunts are in the unsatisfiable core [2023-12-16 04:29:37,587 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-16 04:29:37,610 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:29:37,610 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 37 [2023-12-16 04:29:37,626 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-12-16 04:29:37,626 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 47 treesize of output 37 [2023-12-16 04:29:37,658 INFO L134 CoverageAnalysis]: Checked inductivity of 420 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2023-12-16 04:29:37,658 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-16 04:29:37,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-16 04:29:37,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638119387] [2023-12-16 04:29:37,658 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-16 04:29:37,658 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1563807206] [2023-12-16 04:29:37,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1563807206] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-16 04:29:37,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-16 04:29:37,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-12-16 04:29:37,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17575520] [2023-12-16 04:29:37,659 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-16 04:29:37,659 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-16 04:29:37,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-16 04:29:37,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-16 04:29:37,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-12-16 04:29:37,660 INFO L87 Difference]: Start difference. First operand 199 states and 285 transitions. Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:37,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-16 04:29:37,898 INFO L93 Difference]: Finished difference Result 544 states and 781 transitions. [2023-12-16 04:29:37,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-16 04:29:37,900 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) Word has length 120 [2023-12-16 04:29:37,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-16 04:29:37,903 INFO L225 Difference]: With dead ends: 544 [2023-12-16 04:29:37,903 INFO L226 Difference]: Without dead ends: 346 [2023-12-16 04:29:37,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-16 04:29:37,904 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 80 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 232 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 211 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-16 04:29:37,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 211 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 232 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-16 04:29:37,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2023-12-16 04:29:37,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 285. [2023-12-16 04:29:37,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 257 states have (on average 1.4280155642023347) internal successors, (367), 258 states have internal predecessors, (367), 23 states have call successors, (23), 4 states have call predecessors, (23), 4 states have return successors, (23), 22 states have call predecessors, (23), 23 states have call successors, (23) [2023-12-16 04:29:37,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 413 transitions. [2023-12-16 04:29:37,918 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 413 transitions. Word has length 120 [2023-12-16 04:29:37,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-16 04:29:37,919 INFO L495 AbstractCegarLoop]: Abstraction has 285 states and 413 transitions. [2023-12-16 04:29:37,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 1 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 1 states have call predecessors, (15), 1 states have call successors, (15) [2023-12-16 04:29:37,919 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 413 transitions. [2023-12-16 04:29:37,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2023-12-16 04:29:37,920 INFO L187 NwaCegarLoop]: Found error trace [2023-12-16 04:29:37,920 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:29:37,930 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-12-16 04:29:38,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:29:38,126 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-16 04:29:38,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-16 04:29:38,127 INFO L85 PathProgramCache]: Analyzing trace with hash -740150425, now seen corresponding path program 1 times [2023-12-16 04:29:38,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-16 04:29:38,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1259632177] [2023-12-16 04:29:38,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:38,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-16 04:29:38,159 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-16 04:29:38,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [345972148] [2023-12-16 04:29:38,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-16 04:29:38,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-16 04:29:38,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-16 04:29:38,161 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-16 04:29:38,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process Received shutdown request... [2023-12-16 04:30:49,759 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 04:30:49,760 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-16 04:30:50,785 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 [2023-12-16 04:30:50,968 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forcibly destroying the process [2023-12-16 04:30:50,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 137 [2023-12-16 04:30:50,974 ERROR L246 FreeRefinementEngine]: Caught known exception: Timeout or Toolchain cancelled by user [2023-12-16 04:30:50,975 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-16 04:30:50,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-12-16 04:30:50,976 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was analyzing trace of length 121 with TraceHistMax 15,while AutomatonFreeRefinementEngine was Timeout during CAMEL. [2023-12-16 04:30:50,979 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-16 04:30:50,981 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-16 04:30:50,982 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.12 04:30:50 BoogieIcfgContainer [2023-12-16 04:30:50,982 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-16 04:30:50,983 INFO L158 Benchmark]: Toolchain (without parser) took 81548.46ms. Allocated memory was 261.1MB in the beginning and 342.9MB in the end (delta: 81.8MB). Free memory was 213.2MB in the beginning and 301.8MB in the end (delta: -88.5MB). Peak memory consumption was 185.6MB. Max. memory is 8.0GB. [2023-12-16 04:30:50,983 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-16 04:30:50,983 INFO L158 Benchmark]: CACSL2BoogieTranslator took 543.22ms. Allocated memory is still 261.1MB. Free memory was 213.2MB in the beginning and 197.5MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-16 04:30:50,983 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.25ms. Allocated memory is still 261.1MB. Free memory was 197.5MB in the beginning and 193.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:30:50,983 INFO L158 Benchmark]: Boogie Preprocessor took 44.02ms. Allocated memory is still 261.1MB. Free memory was 193.8MB in the beginning and 189.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2023-12-16 04:30:50,984 INFO L158 Benchmark]: RCFGBuilder took 599.33ms. Allocated memory is still 261.1MB. Free memory was 189.6MB in the beginning and 158.7MB in the end (delta: 31.0MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. [2023-12-16 04:30:50,984 INFO L158 Benchmark]: TraceAbstraction took 80302.84ms. Allocated memory was 261.1MB in the beginning and 342.9MB in the end (delta: 81.8MB). Free memory was 157.6MB in the beginning and 301.8MB in the end (delta: -144.1MB). Peak memory consumption was 130.0MB. Max. memory is 8.0GB. [2023-12-16 04:30:50,985 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 186.6MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 543.22ms. Allocated memory is still 261.1MB. Free memory was 213.2MB in the beginning and 197.5MB in the end (delta: 15.7MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 51.25ms. Allocated memory is still 261.1MB. Free memory was 197.5MB in the beginning and 193.8MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 44.02ms. Allocated memory is still 261.1MB. Free memory was 193.8MB in the beginning and 189.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * RCFGBuilder took 599.33ms. Allocated memory is still 261.1MB. Free memory was 189.6MB in the beginning and 158.7MB in the end (delta: 31.0MB). Peak memory consumption was 30.4MB. Max. memory is 8.0GB. * TraceAbstraction took 80302.84ms. Allocated memory was 261.1MB in the beginning and 342.9MB in the end (delta: 81.8MB). Free memory was 157.6MB in the beginning and 301.8MB in the end (delta: -144.1MB). Peak memory consumption was 130.0MB. 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 121 with TraceHistMax 15,while AutomatonFreeRefinementEngine was Timeout during CAMEL. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 87 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 80.2s, OverallIterations: 10, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1033 SdHoareTripleChecker+Valid, 1.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1033 mSDsluCounter, 3422 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2349 mSDsCounter, 62 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2307 IncrementalHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 62 mSolverCounterUnsat, 1073 mSDtfsCounter, 2307 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1172 GetRequests, 1114 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=285occurred in iteration=9, InterpolantAutomatonStates: 68, 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, 9 MinimizatonAttempts, 360 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1160 NumberOfCodeBlocks, 1160 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 1153 ConstructedInterpolants, 0 QuantifiedInterpolants, 2734 SizeOfPredicates, 70 NumberOfNonLiveVariables, 3560 ConjunctsInSsa, 176 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 4158/4200 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