/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-47.i -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-15 20:14:58,682 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-15 20:14:58,748 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-15 20:14:58,751 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-15 20:14:58,752 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-15 20:14:58,769 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-15 20:14:58,769 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-15 20:14:58,769 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-15 20:14:58,770 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-15 20:14:58,771 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-15 20:14:58,771 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-15 20:14:58,771 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-15 20:14:58,771 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-15 20:14:58,772 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-15 20:14:58,772 INFO L153 SettingsManager]: * Use SBE=true [2023-12-15 20:14:58,772 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-15 20:14:58,772 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-15 20:14:58,772 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-15 20:14:58,773 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-15 20:14:58,773 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-15 20:14:58,773 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-15 20:14:58,776 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-15 20:14:58,776 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-15 20:14:58,776 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-15 20:14:58,776 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-15 20:14:58,776 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-15 20:14:58,777 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-15 20:14:58,777 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-15 20:14:58,777 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-15 20:14:58,777 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-15 20:14:58,778 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-15 20:14:58,778 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-15 20:14:58,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:14:58,779 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-15 20:14:58,779 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-15 20:14:58,779 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-15 20:14:58,779 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-15 20:14:58,779 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-15 20:14:58,779 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-15 20:14:58,779 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-15 20:14:58,780 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-15 20:14:58,780 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-15 20:14:58,780 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-15 20:14:58,780 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-15 20:14:58,968 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-15 20:14:58,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-15 20:14:58,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-15 20:14:58,985 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-15 20:14:58,987 INFO L274 PluginConnector]: CDTParser initialized [2023-12-15 20:14:58,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-47.i [2023-12-15 20:14:59,955 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-15 20:15:00,170 INFO L384 CDTParser]: Found 1 translation units. [2023-12-15 20:15:00,171 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-47.i [2023-12-15 20:15:00,179 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a098ebfbd/8b7957f6206c4218891ce7e9281a4084/FLAGfae1b9634 [2023-12-15 20:15:00,194 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a098ebfbd/8b7957f6206c4218891ce7e9281a4084 [2023-12-15 20:15:00,196 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-15 20:15:00,197 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-15 20:15:00,198 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-15 20:15:00,198 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-15 20:15:00,201 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-15 20:15:00,201 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,202 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed4dc26 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00, skipping insertion in model container [2023-12-15 20:15:00,202 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,231 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-15 20:15:00,337 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-47.i[919,932] [2023-12-15 20:15:00,408 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:15:00,420 INFO L202 MainTranslator]: Completed pre-run [2023-12-15 20:15:00,431 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-co_file-47.i[919,932] [2023-12-15 20:15:00,459 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-15 20:15:00,471 INFO L206 MainTranslator]: Completed translation [2023-12-15 20:15:00,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00 WrapperNode [2023-12-15 20:15:00,472 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-15 20:15:00,473 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-15 20:15:00,473 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-15 20:15:00,473 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-15 20:15:00,477 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,486 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,527 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 327 [2023-12-15 20:15:00,528 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-15 20:15:00,528 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-15 20:15:00,528 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-15 20:15:00,529 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-15 20:15:00,537 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,537 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,542 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,561 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2023-12-15 20:15:00,562 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,562 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,575 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,593 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,599 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,602 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,609 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-15 20:15:00,609 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-15 20:15:00,609 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-15 20:15:00,610 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-15 20:15:00,612 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00" (1/1) ... [2023-12-15 20:15:00,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-15 20:15:00,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:15:00,632 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-12-15 20:15:00,640 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-12-15 20:15:00,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-15 20:15:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-12-15 20:15:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-12-15 20:15:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-15 20:15:00,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-15 20:15:00,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-15 20:15:00,742 INFO L241 CfgBuilder]: Building ICFG [2023-12-15 20:15:00,743 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-15 20:15:01,203 INFO L282 CfgBuilder]: Performing block encoding [2023-12-15 20:15:01,221 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-15 20:15:01,221 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-15 20:15:01,222 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:15:01 BoogieIcfgContainer [2023-12-15 20:15:01,222 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-15 20:15:01,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-15 20:15:01,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-15 20:15:01,225 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-15 20:15:01,225 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:15:00" (1/3) ... [2023-12-15 20:15:01,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af558cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:15:01, skipping insertion in model container [2023-12-15 20:15:01,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:15:00" (2/3) ... [2023-12-15 20:15:01,226 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5af558cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:15:01, skipping insertion in model container [2023-12-15 20:15:01,226 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:15:01" (3/3) ... [2023-12-15 20:15:01,227 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-co_file-47.i [2023-12-15 20:15:01,238 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-15 20:15:01,238 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-15 20:15:01,273 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-15 20:15:01,278 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;@f14b321, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-15 20:15:01,278 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-15 20:15:01,283 INFO L276 IsEmpty]: Start isEmpty. Operand has 117 states, 80 states have (on average 1.6) internal successors, (128), 81 states have internal predecessors, (128), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-15 20:15:01,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2023-12-15 20:15:01,299 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:15:01,300 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:15:01,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:15:01,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:15:01,304 INFO L85 PathProgramCache]: Analyzing trace with hash 37207400, now seen corresponding path program 1 times [2023-12-15 20:15:01,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:15:01,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904481344] [2023-12-15 20:15:01,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:01,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:15:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:15:01,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:15:01,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904481344] [2023-12-15 20:15:01,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-12-15 20:15:01,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608014674] [2023-12-15 20:15:01,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:01,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:15:01,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:15:01,502 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:15:01,519 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-15 20:15:01,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:15:01,714 INFO L262 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 1 conjunts are in the unsatisfiable core [2023-12-15 20:15:01,729 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:15:01,786 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 2178 trivial. 0 not checked. [2023-12-15 20:15:01,786 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:15:01,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608014674] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:15:01,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:15:01,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-12-15 20:15:01,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073002037] [2023-12-15 20:15:01,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:15:01,792 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-12-15 20:15:01,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:15:01,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-12-15 20:15:01,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 20:15:01,817 INFO L87 Difference]: Start difference. First operand has 117 states, 80 states have (on average 1.6) internal successors, (128), 81 states have internal predecessors, (128), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-15 20:15:01,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:15:01,860 INFO L93 Difference]: Finished difference Result 231 states and 424 transitions. [2023-12-15 20:15:01,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-12-15 20:15:01,862 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 217 [2023-12-15 20:15:01,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:15:01,867 INFO L225 Difference]: With dead ends: 231 [2023-12-15 20:15:01,867 INFO L226 Difference]: Without dead ends: 115 [2023-12-15 20:15:01,870 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-12-15 20:15:01,872 INFO L413 NwaCegarLoop]: 184 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 20:15:01,873 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 184 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:15:01,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2023-12-15 20:15:01,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2023-12-15 20:15:01,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 79 states have (on average 1.5063291139240507) internal successors, (119), 79 states have internal predecessors, (119), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-12-15 20:15:01,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 187 transitions. [2023-12-15 20:15:01,917 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 187 transitions. Word has length 217 [2023-12-15 20:15:01,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:15:01,918 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 187 transitions. [2023-12-15 20:15:01,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 26.0) internal successors, (52), 2 states have internal predecessors, (52), 2 states have call successors, (34), 2 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2023-12-15 20:15:01,918 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 187 transitions. [2023-12-15 20:15:01,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2023-12-15 20:15:01,922 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:15:01,922 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:15:01,928 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-15 20:15:02,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-15 20:15:02,127 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:15:02,127 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:15:02,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1110221104, now seen corresponding path program 1 times [2023-12-15 20:15:02,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:15:02,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812166679] [2023-12-15 20:15:02,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:02,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:15:02,190 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:15:02,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1378293972] [2023-12-15 20:15:02,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:02,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:15:02,191 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:15:02,192 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:15:02,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-15 20:15:02,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:15:02,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 12 conjunts are in the unsatisfiable core [2023-12-15 20:15:02,352 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:15:02,989 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 285 proven. 93 refuted. 0 times theorem prover too weak. 1866 trivial. 0 not checked. [2023-12-15 20:15:02,990 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:15:03,206 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 6 proven. 93 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2023-12-15 20:15:03,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:15:03,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812166679] [2023-12-15 20:15:03,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:15:03,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1378293972] [2023-12-15 20:15:03,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1378293972] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:15:03,208 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:15:03,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2023-12-15 20:15:03,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1397494828] [2023-12-15 20:15:03,208 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:15:03,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-12-15 20:15:03,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:15:03,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-12-15 20:15:03,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-12-15 20:15:03,214 INFO L87 Difference]: Start difference. First operand 115 states and 187 transitions. Second operand has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 4 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (68), 4 states have call predecessors, (68), 4 states have call successors, (68) [2023-12-15 20:15:03,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:15:03,715 INFO L93 Difference]: Finished difference Result 443 states and 723 transitions. [2023-12-15 20:15:03,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-12-15 20:15:03,716 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 4 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (68), 4 states have call predecessors, (68), 4 states have call successors, (68) Word has length 218 [2023-12-15 20:15:03,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:15:03,724 INFO L225 Difference]: With dead ends: 443 [2023-12-15 20:15:03,724 INFO L226 Difference]: Without dead ends: 329 [2023-12-15 20:15:03,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 425 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=84, Invalid=188, Unknown=0, NotChecked=0, Total=272 [2023-12-15 20:15:03,726 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 441 mSDsluCounter, 764 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 443 SdHoareTripleChecker+Valid, 901 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-12-15 20:15:03,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [443 Valid, 901 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-12-15 20:15:03,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2023-12-15 20:15:03,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 288. [2023-12-15 20:15:03,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 213 states have (on average 1.5352112676056338) internal successors, (327), 214 states have internal predecessors, (327), 70 states have call successors, (70), 4 states have call predecessors, (70), 4 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-15 20:15:03,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 467 transitions. [2023-12-15 20:15:03,778 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 467 transitions. Word has length 218 [2023-12-15 20:15:03,778 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:15:03,778 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 467 transitions. [2023-12-15 20:15:03,779 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 8.090909090909092) internal successors, (89), 11 states have internal predecessors, (89), 4 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (68), 4 states have call predecessors, (68), 4 states have call successors, (68) [2023-12-15 20:15:03,779 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 467 transitions. [2023-12-15 20:15:03,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-15 20:15:03,781 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:15:03,781 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:15:03,788 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-12-15 20:15:03,986 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-15 20:15:03,986 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:15:03,987 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:15:03,987 INFO L85 PathProgramCache]: Analyzing trace with hash -1499962897, now seen corresponding path program 1 times [2023-12-15 20:15:03,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:15:03,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849784416] [2023-12-15 20:15:03,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:03,987 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:15:04,037 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:15:04,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [771918860] [2023-12-15 20:15:04,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:04,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:15:04,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:15:04,046 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:15:04,074 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-15 20:15:04,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:15:04,169 INFO L262 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 3 conjunts are in the unsatisfiable core [2023-12-15 20:15:04,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:15:04,188 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-15 20:15:04,188 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:15:04,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:15:04,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849784416] [2023-12-15 20:15:04,189 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:15:04,189 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771918860] [2023-12-15 20:15:04,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771918860] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:15:04,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:15:04,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 20:15:04,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510440168] [2023-12-15 20:15:04,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:15:04,190 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 20:15:04,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:15:04,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 20:15:04,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:15:04,192 INFO L87 Difference]: Start difference. First operand 288 states and 467 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:15:04,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:15:04,285 INFO L93 Difference]: Finished difference Result 862 states and 1399 transitions. [2023-12-15 20:15:04,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 20:15:04,286 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 219 [2023-12-15 20:15:04,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:15:04,290 INFO L225 Difference]: With dead ends: 862 [2023-12-15 20:15:04,290 INFO L226 Difference]: Without dead ends: 575 [2023-12-15 20:15:04,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:15:04,292 INFO L413 NwaCegarLoop]: 319 mSDtfsCounter, 168 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 20:15:04,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 465 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 20:15:04,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 575 states. [2023-12-15 20:15:04,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 575 to 414. [2023-12-15 20:15:04,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 339 states have (on average 1.5457227138643068) internal successors, (524), 340 states have internal predecessors, (524), 70 states have call successors, (70), 4 states have call predecessors, (70), 4 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-15 20:15:04,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 664 transitions. [2023-12-15 20:15:04,325 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 664 transitions. Word has length 219 [2023-12-15 20:15:04,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:15:04,326 INFO L495 AbstractCegarLoop]: Abstraction has 414 states and 664 transitions. [2023-12-15 20:15:04,326 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:15:04,326 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 664 transitions. [2023-12-15 20:15:04,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2023-12-15 20:15:04,328 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:15:04,329 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:15:04,336 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-15 20:15:04,534 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:15:04,536 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:15:04,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:15:04,536 INFO L85 PathProgramCache]: Analyzing trace with hash 305475437, now seen corresponding path program 1 times [2023-12-15 20:15:04,537 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:15:04,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922671138] [2023-12-15 20:15:04,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:04,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:15:04,584 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:15:04,584 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1935816674] [2023-12-15 20:15:04,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:04,585 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:15:04,585 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:15:04,593 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:15:04,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-12-15 20:15:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:15:04,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 2 conjunts are in the unsatisfiable core [2023-12-15 20:15:04,715 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:15:04,730 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-15 20:15:04,730 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:15:04,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:15:04,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922671138] [2023-12-15 20:15:04,730 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:15:04,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1935816674] [2023-12-15 20:15:04,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1935816674] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:15:04,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:15:04,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 20:15:04,731 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625681711] [2023-12-15 20:15:04,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:15:04,732 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-12-15 20:15:04,732 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:15:04,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-12-15 20:15:04,733 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:15:04,733 INFO L87 Difference]: Start difference. First operand 414 states and 664 transitions. Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:15:04,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:15:04,777 INFO L93 Difference]: Finished difference Result 1130 states and 1795 transitions. [2023-12-15 20:15:04,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-12-15 20:15:04,778 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 219 [2023-12-15 20:15:04,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:15:04,780 INFO L225 Difference]: With dead ends: 1130 [2023-12-15 20:15:04,781 INFO L226 Difference]: Without dead ends: 717 [2023-12-15 20:15:04,781 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-12-15 20:15:04,782 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 167 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-12-15 20:15:04,782 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 411 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-12-15 20:15:04,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 717 states. [2023-12-15 20:15:04,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 717 to 475. [2023-12-15 20:15:04,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 400 states have (on average 1.485) internal successors, (594), 401 states have internal predecessors, (594), 70 states have call successors, (70), 4 states have call predecessors, (70), 4 states have return successors, (70), 69 states have call predecessors, (70), 70 states have call successors, (70) [2023-12-15 20:15:04,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 734 transitions. [2023-12-15 20:15:04,814 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 734 transitions. Word has length 219 [2023-12-15 20:15:04,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:15:04,815 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 734 transitions. [2023-12-15 20:15:04,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 3 states have internal predecessors, (52), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:15:04,815 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 734 transitions. [2023-12-15 20:15:04,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-15 20:15:04,817 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:15:04,817 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:15:04,824 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-12-15 20:15:05,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:15:05,022 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:15:05,022 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:15:05,022 INFO L85 PathProgramCache]: Analyzing trace with hash 760476212, now seen corresponding path program 1 times [2023-12-15 20:15:05,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:15:05,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503076721] [2023-12-15 20:15:05,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:05,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:15:05,055 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:15:05,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [502433363] [2023-12-15 20:15:05,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:05,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:15:05,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:15:05,056 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-12-15 20:15:05,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-12-15 20:15:05,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:15:05,190 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 7 conjunts are in the unsatisfiable core [2023-12-15 20:15:05,193 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:15:05,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-15 20:15:05,368 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:15:05,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:15:05,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503076721] [2023-12-15 20:15:05,369 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:15:05,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502433363] [2023-12-15 20:15:05,372 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502433363] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:15:05,372 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:15:05,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-12-15 20:15:05,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938310066] [2023-12-15 20:15:05,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:15:05,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-12-15 20:15:05,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:15:05,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-12-15 20:15:05,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-12-15 20:15:05,377 INFO L87 Difference]: Start difference. First operand 475 states and 734 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:15:05,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:15:05,651 INFO L93 Difference]: Finished difference Result 1890 states and 2935 transitions. [2023-12-15 20:15:05,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-12-15 20:15:05,651 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 220 [2023-12-15 20:15:05,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:15:05,657 INFO L225 Difference]: With dead ends: 1890 [2023-12-15 20:15:05,658 INFO L226 Difference]: Without dead ends: 1416 [2023-12-15 20:15:05,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 216 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-12-15 20:15:05,659 INFO L413 NwaCegarLoop]: 247 mSDtfsCounter, 580 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 210 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 580 SdHoareTripleChecker+Valid, 787 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 210 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-12-15 20:15:05,659 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [580 Valid, 787 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [210 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-12-15 20:15:05,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1416 states. [2023-12-15 20:15:05,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1416 to 809. [2023-12-15 20:15:05,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 809 states, 660 states have (on average 1.4575757575757575) internal successors, (962), 662 states have internal predecessors, (962), 140 states have call successors, (140), 8 states have call predecessors, (140), 8 states have return successors, (140), 138 states have call predecessors, (140), 140 states have call successors, (140) [2023-12-15 20:15:05,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 809 states to 809 states and 1242 transitions. [2023-12-15 20:15:05,726 INFO L78 Accepts]: Start accepts. Automaton has 809 states and 1242 transitions. Word has length 220 [2023-12-15 20:15:05,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:15:05,728 INFO L495 AbstractCegarLoop]: Abstraction has 809 states and 1242 transitions. [2023-12-15 20:15:05,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:15:05,729 INFO L276 IsEmpty]: Start isEmpty. Operand 809 states and 1242 transitions. [2023-12-15 20:15:05,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2023-12-15 20:15:05,731 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:15:05,731 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:15:05,739 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-12-15 20:15:05,937 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:15:05,937 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:15:05,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:15:05,938 INFO L85 PathProgramCache]: Analyzing trace with hash 2146679606, now seen corresponding path program 1 times [2023-12-15 20:15:05,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:15:05,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1129667630] [2023-12-15 20:15:05,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:05,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:15:05,957 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:15:05,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1059167190] [2023-12-15 20:15:05,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:05,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:15:05,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:15:05,959 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) [2023-12-15 20:15:05,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-12-15 20:15:06,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:15:06,100 INFO L262 TraceCheckSpWp]: Trace formula consists of 511 conjuncts, 9 conjunts are in the unsatisfiable core [2023-12-15 20:15:06,104 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:15:06,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-15 20:15:06,509 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:15:06,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:15:06,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1129667630] [2023-12-15 20:15:06,509 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:15:06,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1059167190] [2023-12-15 20:15:06,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1059167190] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:15:06,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:15:06,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-12-15 20:15:06,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079551177] [2023-12-15 20:15:06,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:15:06,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-12-15 20:15:06,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:15:06,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-12-15 20:15:06,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-12-15 20:15:06,511 INFO L87 Difference]: Start difference. First operand 809 states and 1242 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:15:06,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:15:06,658 INFO L93 Difference]: Finished difference Result 1453 states and 2239 transitions. [2023-12-15 20:15:06,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-12-15 20:15:06,658 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 220 [2023-12-15 20:15:06,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:15:06,661 INFO L225 Difference]: With dead ends: 1453 [2023-12-15 20:15:06,661 INFO L226 Difference]: Without dead ends: 645 [2023-12-15 20:15:06,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-12-15 20:15:06,664 INFO L413 NwaCegarLoop]: 181 mSDtfsCounter, 117 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 503 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-15 20:15:06,664 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 503 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [69 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-15 20:15:06,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 645 states. [2023-12-15 20:15:06,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 645 to 547. [2023-12-15 20:15:06,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 547 states, 436 states have (on average 1.4472477064220184) internal successors, (631), 437 states have internal predecessors, (631), 104 states have call successors, (104), 6 states have call predecessors, (104), 6 states have return successors, (104), 103 states have call predecessors, (104), 104 states have call successors, (104) [2023-12-15 20:15:06,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 839 transitions. [2023-12-15 20:15:06,693 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 839 transitions. Word has length 220 [2023-12-15 20:15:06,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:15:06,693 INFO L495 AbstractCegarLoop]: Abstraction has 547 states and 839 transitions. [2023-12-15 20:15:06,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 3 states have internal predecessors, (53), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:15:06,694 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 839 transitions. [2023-12-15 20:15:06,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-15 20:15:06,695 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:15:06,695 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:15:06,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-12-15 20:15:06,900 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 [2023-12-15 20:15:06,901 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:15:06,901 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:15:06,901 INFO L85 PathProgramCache]: Analyzing trace with hash -123916022, now seen corresponding path program 1 times [2023-12-15 20:15:06,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:15:06,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209089155] [2023-12-15 20:15:06,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:06,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:15:06,918 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:15:06,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [80207229] [2023-12-15 20:15:06,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:06,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:15:06,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:15:06,920 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) [2023-12-15 20:15:06,941 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-12-15 20:15:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:15:07,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 18 conjunts are in the unsatisfiable core [2023-12-15 20:15:07,048 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:15:08,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 318 proven. 180 refuted. 0 times theorem prover too weak. 1746 trivial. 0 not checked. [2023-12-15 20:15:08,143 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:15:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 12 proven. 183 refuted. 0 times theorem prover too weak. 2049 trivial. 0 not checked. [2023-12-15 20:15:13,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:15:13,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209089155] [2023-12-15 20:15:13,075 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:15:13,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [80207229] [2023-12-15 20:15:13,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [80207229] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:15:13,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:15:13,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 20 [2023-12-15 20:15:13,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430119369] [2023-12-15 20:15:13,076 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:15:13,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-12-15 20:15:13,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:15:13,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-12-15 20:15:13,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=272, Unknown=0, NotChecked=0, Total=380 [2023-12-15 20:15:13,078 INFO L87 Difference]: Start difference. First operand 547 states and 839 transitions. Second operand has 20 states, 19 states have (on average 6.052631578947368) internal successors, (115), 18 states have internal predecessors, (115), 6 states have call successors, (68), 4 states have call predecessors, (68), 7 states have return successors, (68), 6 states have call predecessors, (68), 6 states have call successors, (68) [2023-12-15 20:15:33,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:15:33,518 INFO L93 Difference]: Finished difference Result 3138 states and 4777 transitions. [2023-12-15 20:15:33,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2023-12-15 20:15:33,519 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 6.052631578947368) internal successors, (115), 18 states have internal predecessors, (115), 6 states have call successors, (68), 4 states have call predecessors, (68), 7 states have return successors, (68), 6 states have call predecessors, (68), 6 states have call successors, (68) Word has length 221 [2023-12-15 20:15:33,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:15:33,529 INFO L225 Difference]: With dead ends: 3138 [2023-12-15 20:15:33,529 INFO L226 Difference]: Without dead ends: 2662 [2023-12-15 20:15:33,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 445 SyntacticMatches, 0 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5998 ImplicationChecksByTransitivity, 13.5s TimeCoverageRelationStatistics Valid=3681, Invalid=9891, Unknown=0, NotChecked=0, Total=13572 [2023-12-15 20:15:33,533 INFO L413 NwaCegarLoop]: 243 mSDtfsCounter, 2203 mSDsluCounter, 1639 mSDsCounter, 0 mSdLazyCounter, 2551 mSolverCounterSat, 1078 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2210 SdHoareTripleChecker+Valid, 1882 SdHoareTripleChecker+Invalid, 3629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1078 IncrementalHoareTripleChecker+Valid, 2551 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.7s IncrementalHoareTripleChecker+Time [2023-12-15 20:15:33,533 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2210 Valid, 1882 Invalid, 3629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1078 Valid, 2551 Invalid, 0 Unknown, 0 Unchecked, 10.7s Time] [2023-12-15 20:15:33,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2662 states. [2023-12-15 20:15:33,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2662 to 1053. [2023-12-15 20:15:33,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 867 states have (on average 1.4590542099192618) internal successors, (1265), 868 states have internal predecessors, (1265), 172 states have call successors, (172), 13 states have call predecessors, (172), 13 states have return successors, (172), 171 states have call predecessors, (172), 172 states have call successors, (172) [2023-12-15 20:15:33,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1609 transitions. [2023-12-15 20:15:33,663 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1609 transitions. Word has length 221 [2023-12-15 20:15:33,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:15:33,664 INFO L495 AbstractCegarLoop]: Abstraction has 1053 states and 1609 transitions. [2023-12-15 20:15:33,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 6.052631578947368) internal successors, (115), 18 states have internal predecessors, (115), 6 states have call successors, (68), 4 states have call predecessors, (68), 7 states have return successors, (68), 6 states have call predecessors, (68), 6 states have call successors, (68) [2023-12-15 20:15:33,664 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1609 transitions. [2023-12-15 20:15:33,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2023-12-15 20:15:33,666 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:15:33,666 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:15:33,674 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-12-15 20:15:33,871 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 [2023-12-15 20:15:33,872 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:15:33,872 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:15:33,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1155947656, now seen corresponding path program 1 times [2023-12-15 20:15:33,872 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:15:33,872 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375398138] [2023-12-15 20:15:33,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:33,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:15:33,889 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:15:33,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1204793766] [2023-12-15 20:15:33,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:33,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:15:33,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:15:33,891 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) [2023-12-15 20:15:33,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-12-15 20:15:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:15:34,056 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 27 conjunts are in the unsatisfiable core [2023-12-15 20:15:34,059 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:15:35,638 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 1245 proven. 246 refuted. 0 times theorem prover too weak. 753 trivial. 0 not checked. [2023-12-15 20:15:35,638 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:15:37,087 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 114 proven. 174 refuted. 0 times theorem prover too weak. 1956 trivial. 0 not checked. [2023-12-15 20:15:37,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:15:37,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375398138] [2023-12-15 20:15:37,087 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:15:37,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204793766] [2023-12-15 20:15:37,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204793766] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:15:37,087 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:15:37,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 12] total 26 [2023-12-15 20:15:37,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500164011] [2023-12-15 20:15:37,088 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:15:37,088 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-12-15 20:15:37,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:15:37,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-12-15 20:15:37,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2023-12-15 20:15:37,089 INFO L87 Difference]: Start difference. First operand 1053 states and 1609 transitions. Second operand has 26 states, 25 states have (on average 4.76) internal successors, (119), 23 states have internal predecessors, (119), 9 states have call successors, (68), 6 states have call predecessors, (68), 11 states have return successors, (68), 9 states have call predecessors, (68), 9 states have call successors, (68) [2023-12-15 20:15:42,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:15:42,803 INFO L93 Difference]: Finished difference Result 2371 states and 3541 transitions. [2023-12-15 20:15:42,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-12-15 20:15:42,803 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 4.76) internal successors, (119), 23 states have internal predecessors, (119), 9 states have call successors, (68), 6 states have call predecessors, (68), 11 states have return successors, (68), 9 states have call predecessors, (68), 9 states have call successors, (68) Word has length 221 [2023-12-15 20:15:42,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:15:42,808 INFO L225 Difference]: With dead ends: 2371 [2023-12-15 20:15:42,808 INFO L226 Difference]: Without dead ends: 1393 [2023-12-15 20:15:42,810 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 514 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2750 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=2011, Invalid=5299, Unknown=0, NotChecked=0, Total=7310 [2023-12-15 20:15:42,811 INFO L413 NwaCegarLoop]: 168 mSDtfsCounter, 1484 mSDsluCounter, 1345 mSDsCounter, 0 mSdLazyCounter, 1956 mSolverCounterSat, 712 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1488 SdHoareTripleChecker+Valid, 1513 SdHoareTripleChecker+Invalid, 2668 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 712 IncrementalHoareTripleChecker+Valid, 1956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-12-15 20:15:42,811 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1488 Valid, 1513 Invalid, 2668 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [712 Valid, 1956 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2023-12-15 20:15:42,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1393 states. [2023-12-15 20:15:42,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1393 to 1086. [2023-12-15 20:15:42,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1086 states, 851 states have (on average 1.3595769682726204) internal successors, (1157), 853 states have internal predecessors, (1157), 206 states have call successors, (206), 28 states have call predecessors, (206), 28 states have return successors, (206), 204 states have call predecessors, (206), 206 states have call successors, (206) [2023-12-15 20:15:42,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1086 states to 1086 states and 1569 transitions. [2023-12-15 20:15:42,961 INFO L78 Accepts]: Start accepts. Automaton has 1086 states and 1569 transitions. Word has length 221 [2023-12-15 20:15:42,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:15:42,962 INFO L495 AbstractCegarLoop]: Abstraction has 1086 states and 1569 transitions. [2023-12-15 20:15:42,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 4.76) internal successors, (119), 23 states have internal predecessors, (119), 9 states have call successors, (68), 6 states have call predecessors, (68), 11 states have return successors, (68), 9 states have call predecessors, (68), 9 states have call successors, (68) [2023-12-15 20:15:42,962 INFO L276 IsEmpty]: Start isEmpty. Operand 1086 states and 1569 transitions. [2023-12-15 20:15:42,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-15 20:15:42,963 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:15:42,964 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:15:42,971 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-12-15 20:15:43,169 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 [2023-12-15 20:15:43,169 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:15:43,170 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:15:43,170 INFO L85 PathProgramCache]: Analyzing trace with hash 1748120055, now seen corresponding path program 1 times [2023-12-15 20:15:43,170 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:15:43,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509774315] [2023-12-15 20:15:43,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:43,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:15:43,193 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:15:43,193 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [203238358] [2023-12-15 20:15:43,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:15:43,193 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:15:43,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:15:43,194 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) [2023-12-15 20:15:43,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-12-15 20:15:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:15:43,328 INFO L262 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 8 conjunts are in the unsatisfiable core [2023-12-15 20:15:43,338 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:15:43,596 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2023-12-15 20:15:43,596 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-15 20:15:43,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:15:43,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509774315] [2023-12-15 20:15:43,596 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:15:43,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203238358] [2023-12-15 20:15:43,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203238358] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-15 20:15:43,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-15 20:15:43,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-12-15 20:15:43,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085051496] [2023-12-15 20:15:43,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-15 20:15:43,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-12-15 20:15:43,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:15:43,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-12-15 20:15:43,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2023-12-15 20:15:43,597 INFO L87 Difference]: Start difference. First operand 1086 states and 1569 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:16:01,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-15 20:16:01,364 INFO L93 Difference]: Finished difference Result 2073 states and 3047 transitions. [2023-12-15 20:16:01,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-12-15 20:16:01,365 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) Word has length 222 [2023-12-15 20:16:01,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-15 20:16:01,370 INFO L225 Difference]: With dead ends: 2073 [2023-12-15 20:16:01,370 INFO L226 Difference]: Without dead ends: 1489 [2023-12-15 20:16:01,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 222 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2023-12-15 20:16:01,371 INFO L413 NwaCegarLoop]: 292 mSDtfsCounter, 332 mSDsluCounter, 497 mSDsCounter, 0 mSdLazyCounter, 639 mSolverCounterSat, 10 mSolverCounterUnsat, 11 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 332 SdHoareTripleChecker+Valid, 789 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 639 IncrementalHoareTripleChecker+Invalid, 11 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.5s IncrementalHoareTripleChecker+Time [2023-12-15 20:16:01,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [332 Valid, 789 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 639 Invalid, 11 Unknown, 0 Unchecked, 17.5s Time] [2023-12-15 20:16:01,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1489 states. [2023-12-15 20:16:01,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1489 to 1193. [2023-12-15 20:16:01,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1193 states, 958 states have (on average 1.3966597077244258) internal successors, (1338), 960 states have internal predecessors, (1338), 206 states have call successors, (206), 28 states have call predecessors, (206), 28 states have return successors, (206), 204 states have call predecessors, (206), 206 states have call successors, (206) [2023-12-15 20:16:01,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1193 states to 1193 states and 1750 transitions. [2023-12-15 20:16:01,523 INFO L78 Accepts]: Start accepts. Automaton has 1193 states and 1750 transitions. Word has length 222 [2023-12-15 20:16:01,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-15 20:16:01,524 INFO L495 AbstractCegarLoop]: Abstraction has 1193 states and 1750 transitions. [2023-12-15 20:16:01,524 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 1 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 1 states have call successors, (34) [2023-12-15 20:16:01,524 INFO L276 IsEmpty]: Start isEmpty. Operand 1193 states and 1750 transitions. [2023-12-15 20:16:01,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2023-12-15 20:16:01,525 INFO L187 NwaCegarLoop]: Found error trace [2023-12-15 20:16:01,526 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:16:01,534 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-12-15 20:16:01,728 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 [2023-12-15 20:16:01,728 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-15 20:16:01,729 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-15 20:16:01,729 INFO L85 PathProgramCache]: Analyzing trace with hash -1337181957, now seen corresponding path program 1 times [2023-12-15 20:16:01,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-15 20:16:01,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379640952] [2023-12-15 20:16:01,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:16:01,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-15 20:16:01,744 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-15 20:16:01,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1146728888] [2023-12-15 20:16:01,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-15 20:16:01,745 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-15 20:16:01,745 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-15 20:16:01,746 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) [2023-12-15 20:16:01,755 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-12-15 20:16:01,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-15 20:16:01,888 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 14 conjunts are in the unsatisfiable core [2023-12-15 20:16:01,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-15 20:16:03,006 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 285 proven. 93 refuted. 0 times theorem prover too weak. 1866 trivial. 0 not checked. [2023-12-15 20:16:03,006 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-15 20:16:05,876 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 6 proven. 93 refuted. 0 times theorem prover too weak. 2145 trivial. 0 not checked. [2023-12-15 20:16:05,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-15 20:16:05,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379640952] [2023-12-15 20:16:05,876 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-15 20:16:05,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1146728888] [2023-12-15 20:16:05,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1146728888] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-15 20:16:05,877 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-15 20:16:05,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 16 [2023-12-15 20:16:05,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924530016] [2023-12-15 20:16:05,877 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-15 20:16:05,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2023-12-15 20:16:05,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-15 20:16:05,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2023-12-15 20:16:05,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-12-15 20:16:05,878 INFO L87 Difference]: Start difference. First operand 1193 states and 1750 transitions. Second operand has 16 states, 16 states have (on average 6.9375) internal successors, (111), 16 states have internal predecessors, (111), 4 states have call successors, (68), 3 states have call predecessors, (68), 5 states have return successors, (68), 4 states have call predecessors, (68), 4 states have call successors, (68) Received shutdown request... [2023-12-15 20:16:07,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2023-12-15 20:16:07,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 460 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=260, Invalid=732, Unknown=0, NotChecked=0, Total=992 [2023-12-15 20:16:07,690 INFO L413 NwaCegarLoop]: 111 mSDtfsCounter, 815 mSDsluCounter, 639 mSDsCounter, 0 mSdLazyCounter, 1156 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 815 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 1331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 1156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-12-15 20:16:07,691 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [815 Valid, 750 Invalid, 1331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 1156 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-12-15 20:16:07,691 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-15 20:16:07,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2023-12-15 20:16:07,707 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 [2023-12-15 20:16:07,707 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-12-15 20:16:07,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2023-12-15 20:16:07,893 WARN L619 AbstractCegarLoop]: Verification canceled: while NwaCegarLoop was constructing difference of abstraction (1193states) and FLOYD_HOARE automaton (currently 22 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (538 states constructed, input type IntersectNwa). [2023-12-15 20:16:07,897 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-15 20:16:07,898 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-15 20:16:07,900 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 08:16:07 BoogieIcfgContainer [2023-12-15 20:16:07,900 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-15 20:16:07,900 INFO L158 Benchmark]: Toolchain (without parser) took 67703.18ms. Allocated memory was 329.3MB in the beginning and 475.0MB in the end (delta: 145.8MB). Free memory was 284.8MB in the beginning and 215.6MB in the end (delta: 69.2MB). Peak memory consumption was 216.0MB. Max. memory is 8.0GB. [2023-12-15 20:16:07,900 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-15 20:16:07,900 INFO L158 Benchmark]: CACSL2BoogieTranslator took 274.17ms. Allocated memory is still 329.3MB. Free memory was 284.6MB in the beginning and 267.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2023-12-15 20:16:07,900 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.04ms. Allocated memory is still 329.3MB. Free memory was 267.5MB in the beginning and 261.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2023-12-15 20:16:07,901 INFO L158 Benchmark]: Boogie Preprocessor took 80.39ms. Allocated memory is still 329.3MB. Free memory was 261.2MB in the beginning and 253.5MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2023-12-15 20:16:07,901 INFO L158 Benchmark]: RCFGBuilder took 612.61ms. Allocated memory is still 329.3MB. Free memory was 253.5MB in the beginning and 277.5MB in the end (delta: -23.9MB). Peak memory consumption was 29.7MB. Max. memory is 8.0GB. [2023-12-15 20:16:07,901 INFO L158 Benchmark]: TraceAbstraction took 66676.64ms. Allocated memory was 329.3MB in the beginning and 475.0MB in the end (delta: 145.8MB). Free memory was 276.9MB in the beginning and 215.6MB in the end (delta: 61.4MB). Peak memory consumption was 207.3MB. Max. memory is 8.0GB. [2023-12-15 20:16:07,902 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 133.8MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 274.17ms. Allocated memory is still 329.3MB. Free memory was 284.6MB in the beginning and 267.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 55.04ms. Allocated memory is still 329.3MB. Free memory was 267.5MB in the beginning and 261.2MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * Boogie Preprocessor took 80.39ms. Allocated memory is still 329.3MB. Free memory was 261.2MB in the beginning and 253.5MB in the end (delta: 7.7MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * RCFGBuilder took 612.61ms. Allocated memory is still 329.3MB. Free memory was 253.5MB in the beginning and 277.5MB in the end (delta: -23.9MB). Peak memory consumption was 29.7MB. Max. memory is 8.0GB. * TraceAbstraction took 66676.64ms. Allocated memory was 329.3MB in the beginning and 475.0MB in the end (delta: 145.8MB). Free memory was 276.9MB in the beginning and 215.6MB in the end (delta: 61.4MB). Peak memory consumption was 207.3MB. 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 constructing difference of abstraction (1193states) and FLOYD_HOARE automaton (currently 22 states, 16 states before enhancement),while ReachableStatesComputation was computing reachable states (538 states constructed, input type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 117 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 66.6s, OverallIterations: 10, TraceHistogramMax: 34, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 47.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 11 mSolverCounterUnknown, 6320 SdHoareTripleChecker+Valid, 33.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6307 mSDsluCounter, 8185 SdHoareTripleChecker+Invalid, 32.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6061 mSDsCounter, 2280 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7023 IncrementalHoareTripleChecker+Invalid, 9314 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2280 mSolverCounterUnsat, 2124 mSDtfsCounter, 7023 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3290 GetRequests, 3030 SyntacticMatches, 0 SemanticMatches, 260 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9014 ImplicationChecksByTransitivity, 17.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1193occurred in iteration=9, InterpolantAutomatonStates: 213, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 9 MinimizatonAttempts, 3361 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 15.0s InterpolantComputationTime, 2416 NumberOfCodeBlocks, 2416 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 3067 ConstructedInterpolants, 7 QuantifiedInterpolants, 26424 SizeOfPredicates, 40 NumberOfNonLiveVariables, 5089 ConjunctsInSsa, 101 ConjunctsInUnsatCore, 14 InterpolantComputations, 6 PerfectInterpolantSequences, 30261/31416 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